lock_stat version 0.3
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
                              class name    con-bounces    contentions   waittime-min   waittime-max waittime-total    acq-bounces   acquisitions   holdtime-min   holdtime-max holdtime-total
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

          &(&fs_info->trans_lock)->rlock:      32746456       33025646           0.11      679986.41 23606188219.93       33618627       33734812           0.09         284.19    81430327.84
          ------------------------------
          &(&fs_info->trans_lock)->rlock       14854741          [<ffffffff812f1252>] wait_current_trans.clone.22+0x22/0xf0
          &(&fs_info->trans_lock)->rlock       14855939          [<ffffffff812f1b58>] btrfs_transaction_in_commit+0x28/0x60
          &(&fs_info->trans_lock)->rlock        3314861          [<ffffffff812f1347>] join_transaction.clone.24+0x27/0x280
          &(&fs_info->trans_lock)->rlock             19          [<ffffffff812ea98a>] transaction_kthread+0xea/0x290
          ------------------------------
          &(&fs_info->trans_lock)->rlock       14603311          [<ffffffff812f1b58>] btrfs_transaction_in_commit+0x28/0x60
          &(&fs_info->trans_lock)->rlock       15476055          [<ffffffff812f1252>] wait_current_trans.clone.22+0x22/0xf0
          &(&fs_info->trans_lock)->rlock        2946197          [<ffffffff812f1347>] join_transaction.clone.24+0x27/0x280
          &(&fs_info->trans_lock)->rlock             22          [<ffffffff812ea98a>] transaction_kthread+0xea/0x290

...............................................................................................................................................................................................

           &(&mapping->tree_lock)->rlock:       5114446        5220495           0.11        3602.69    54057789.74        7863000       60914860           0.00         292.37    31255879.11
           -----------------------------
           &(&mapping->tree_lock)->rlock        1100952          [<ffffffff810f25a6>] test_set_page_writeback+0x66/0x190
           &(&mapping->tree_lock)->rlock        4077101          [<ffffffff810f39c2>] test_clear_page_writeback+0x62/0x180
           &(&mapping->tree_lock)->rlock          23560          [<ffffffff810e8ad4>] add_to_page_cache_locked+0x74/0xe0
           &(&mapping->tree_lock)->rlock          18883          [<ffffffff810f2423>] __set_page_dirty_nobuffers+0x63/0x160
           -----------------------------
           &(&mapping->tree_lock)->rlock          21482          [<ffffffff810e8ad4>] add_to_page_cache_locked+0x74/0xe0
           &(&mapping->tree_lock)->rlock          27985          [<ffffffff810f2423>] __set_page_dirty_nobuffers+0x63/0x160
           &(&mapping->tree_lock)->rlock         705184          [<ffffffff810f25a6>] test_set_page_writeback+0x66/0x190
           &(&mapping->tree_lock)->rlock        4465845          [<ffffffff810f39c2>] test_clear_page_writeback+0x62/0x180

...............................................................................................................................................................................................

                                    #1-W:        459588         487619           0.11         335.92     2188951.42         990928       46276245           0.00         294.15    31730840.76
                                    #1-R:        202478         206704           0.14         255.08      914679.50         966978       45958459           0.00         297.48    30814865.53
                                    ----
                                      #1         225122          [<ffffffff81322971>] btrfs_tree_lock+0x111/0x250
                                      #1          97716          [<ffffffff813226c0>] btrfs_tree_read_lock+0xa0/0x130
                                      #1         128005          [<ffffffff813225d1>] btrfs_clear_lock_blocking_rw+0x81/0xd0
                                      #1          33126          [<ffffffff8132258c>] btrfs_clear_lock_blocking_rw+0x3c/0xd0
                                    ----
                                      #1          31019          [<ffffffff813226c0>] btrfs_tree_read_lock+0xa0/0x130
                                      #1         127417          [<ffffffff8132258c>] btrfs_clear_lock_blocking_rw+0x3c/0xd0
                                      #1         398138          [<ffffffff813225d1>] btrfs_clear_lock_blocking_rw+0x81/0xd0
                                      #1          72277          [<ffffffff81322971>] btrfs_tree_lock+0x111/0x250

...............................................................................................................................................................................................

                                   key#9:        542898         574720           0.10         234.93     1902278.43        1580044       93122099           0.00         294.30    13762956.83
                                   -----
                                   key#9         285727          [<ffffffff8106ef61>] finish_wait+0x41/0x80
                                   key#9         179558          [<ffffffff81035d62>] __wake_up+0x32/0x70
                                   key#9         109437          [<ffffffff8106f05a>] prepare_to_wait+0x2a/0x90
                                   -----
                                   key#9         275843          [<ffffffff81035d62>] __wake_up+0x32/0x70
                                   key#9         245569          [<ffffffff8106f05a>] prepare_to_wait+0x2a/0x90
                                   key#9          53310          [<ffffffff8106ef61>] finish_wait+0x41/0x80

...............................................................................................................................................................................................

                      &(&t->lock)->rlock:        364708         381820           0.10        1089.83     1283811.90        5210215       15449518           0.00         314.44     7158367.58
                      ------------------
                      &(&t->lock)->rlock         370558          [<ffffffff8130ba38>] btrfs_dec_test_ordered_pending+0x48/0x170
                      &(&t->lock)->rlock           5407          [<ffffffff8130bffd>] btrfs_lookup_ordered_extent+0x3d/0x110
                      &(&t->lock)->rlock           5803          [<ffffffff8130b7de>] btrfs_add_ordered_sum+0x2e/0x70
                      &(&t->lock)->rlock             26          [<ffffffff8130c72a>] btrfs_ordered_update_i_size+0x6a/0x380
                      ------------------
                      &(&t->lock)->rlock         362970          [<ffffffff8130ba38>] btrfs_dec_test_ordered_pending+0x48/0x170
                      &(&t->lock)->rlock           9334          [<ffffffff8130b7de>] btrfs_add_ordered_sum+0x2e/0x70
                      &(&t->lock)->rlock           9328          [<ffffffff8130bffd>] btrfs_lookup_ordered_extent+0x3d/0x110
                      &(&t->lock)->rlock            151          [<ffffffff8130c72a>] btrfs_ordered_update_i_size+0x6a/0x380

...............................................................................................................................................................................................

                                   key#8:        139292         144970           0.10         230.94      396136.04        3903017      108854161           0.00         419.10    15177464.99
                                   -----
                                   key#8          75979          [<ffffffff81035d62>] __wake_up+0x32/0x70
                                   key#8          55725          [<ffffffff8106ef61>] finish_wait+0x41/0x80
                                   key#8          13267          [<ffffffff8106f05a>] prepare_to_wait+0x2a/0x90
                                   -----
                                   key#8         107268          [<ffffffff81035d62>] __wake_up+0x32/0x70
                                   key#8          26678          [<ffffffff8106f05a>] prepare_to_wait+0x2a/0x90
                                   key#8          11025          [<ffffffff8106ef61>] finish_wait+0x41/0x80

...............................................................................................................................................................................................

                  &(&found->lock)->rlock:         85837          85865           0.22         290.61      147107.24       29954395       30469716           0.09         285.49    29654960.88
                  ----------------------
                  &(&found->lock)->rlock          42319          [<ffffffff812df38a>] btrfs_check_data_free_space+0x8a/0x210
                  &(&found->lock)->rlock          42435          [<ffffffff812decd8>] reserve_metadata_bytes.clone.59+0x88/0x680
                  &(&found->lock)->rlock             48          [<ffffffff812d80a7>] block_rsv_release_bytes+0x107/0x130
                  &(&found->lock)->rlock              4          [<ffffffff812d95b2>] update_space_info+0x62/0x1f0
                  ----------------------
                  &(&found->lock)->rlock          42245          [<ffffffff812df38a>] btrfs_check_data_free_space+0x8a/0x210
                  &(&found->lock)->rlock          42246          [<ffffffff812decd8>] reserve_metadata_bytes.clone.59+0x88/0x680
                  &(&found->lock)->rlock             47          [<ffffffff812ddd94>] do_chunk_alloc+0x64/0x380
                  &(&found->lock)->rlock              2          [<ffffffff812de040>] do_chunk_alloc+0x310/0x380

...............................................................................................................................................................................................

                                    #1-W:         23880          30780           0.20         239.31       71538.07          61223         148963           0.00         229.36      376259.16
                                    #1-R:         35184          35445           0.30          81.67       92003.08        4068918       91120961           0.00         422.25    74139725.56
                                    ----
                                      #1          30372          [<ffffffff813226c0>] btrfs_tree_read_lock+0xa0/0x130
                                      #1          14483          [<ffffffff813225d1>] btrfs_clear_lock_blocking_rw+0x81/0xd0
                                      #1          15108          [<ffffffff81322971>] btrfs_tree_lock+0x111/0x250
                                      #1           2146          [<ffffffff8132258c>] btrfs_clear_lock_blocking_rw+0x3c/0xd0
                                    ----
                                      #1          34254          [<ffffffff813225d1>] btrfs_clear_lock_blocking_rw+0x81/0xd0
                                      #1          18166          [<ffffffff813226c0>] btrfs_tree_read_lock+0xa0/0x130
                                      #1           3968          [<ffffffff81322971>] btrfs_tree_lock+0x111/0x250
                                      #1           8034          [<ffffffff8132258c>] btrfs_clear_lock_blocking_rw+0x3c/0xd0

...............................................................................................................................................................................................

       &(&fs_info->delalloc_lock)->rlock:         55110          55610           0.12         178.37      108220.02       14986586       15277228           0.00         268.64    17730335.86
       ---------------------------------
       &(&fs_info->delalloc_lock)->rlock          54325          [<ffffffff812f3155>] btrfs_set_bit_hook+0x95/0x160
       &(&fs_info->delalloc_lock)->rlock             42          [<ffffffff812f3b6f>] btrfs_clear_bit_hook+0x1af/0x210
       &(&fs_info->delalloc_lock)->rlock            382          [<ffffffff812dc181>] update_block_group.clone.58+0x41/0x2c0
       &(&fs_info->delalloc_lock)->rlock            441          [<ffffffff812eda48>] btrfs_mark_buffer_dirty+0xa8/0x110
       ---------------------------------
       &(&fs_info->delalloc_lock)->rlock          54096          [<ffffffff812f3155>] btrfs_set_bit_hook+0x95/0x160
       &(&fs_info->delalloc_lock)->rlock             63          [<ffffffff812f3b6f>] btrfs_clear_bit_hook+0x1af/0x210
       &(&fs_info->delalloc_lock)->rlock            450          [<ffffffff812dc181>] update_block_group.clone.58+0x41/0x2c0
       &(&fs_info->delalloc_lock)->rlock            570          [<ffffffff812eda48>] btrfs_mark_buffer_dirty+0xa8/0x110

...............................................................................................................................................................................................

                   &(&tree->lock)->rlock:         41741          42095           0.18          71.23      153362.30         128878       30454051           0.00         288.35    48827991.86
                   ---------------------
                   &(&tree->lock)->rlock          40458          [<ffffffff8130d409>] find_delalloc_range+0x39/0x1d0
                   &(&tree->lock)->rlock           1607          [<ffffffff8130e511>] set_extent_bit+0x71/0x500
                   &(&tree->lock)->rlock             14          [<ffffffff8130dde4>] clear_extent_bit+0x94/0x420
                   &(&tree->lock)->rlock             16          [<ffffffff8130f989>] test_range_bit+0x39/0x180
                   ---------------------
                   &(&tree->lock)->rlock          40036          [<ffffffff8130e511>] set_extent_bit+0x71/0x500
                   &(&tree->lock)->rlock           2030          [<ffffffff8130d409>] find_delalloc_range+0x39/0x1d0
                   &(&tree->lock)->rlock             24          [<ffffffff8130dde4>] clear_extent_bit+0x94/0x420
                   &(&tree->lock)->rlock              5          [<ffffffff8130f989>] test_range_bit+0x39/0x180

...............................................................................................................................................................................................

                    &(&rsv->lock)->rlock:         32731          32926           0.33         113.64      152805.33       17643306       18557376           0.09         284.05    49618119.48
                    --------------------
                    &(&rsv->lock)->rlock          29656          [<ffffffff812d8275>] block_rsv_add_bytes+0x35/0x80
                    &(&rsv->lock)->rlock           2420          [<ffffffff812df73a>] btrfs_block_rsv_check+0x3a/0x90
                    &(&rsv->lock)->rlock            749          [<ffffffff812d81f8>] block_rsv_use_bytes+0x38/0x80
                    &(&rsv->lock)->rlock             97          [<ffffffff812d7fda>] block_rsv_release_bytes+0x3a/0x130
                    --------------------
                    &(&rsv->lock)->rlock          30008          [<ffffffff812d8275>] block_rsv_add_bytes+0x35/0x80
                    &(&rsv->lock)->rlock           2418          [<ffffffff812df73a>] btrfs_block_rsv_check+0x3a/0x90
                    &(&rsv->lock)->rlock            419          [<ffffffff812d81f8>] block_rsv_use_bytes+0x38/0x80
                    &(&rsv->lock)->rlock             80          [<ffffffff812d7fda>] block_rsv_release_bytes+0x3a/0x130

...............................................................................................................................................................................................

                      &(&h->lock)->rlock:         10499          10514           0.17         173.74       34841.40         213641         639233           0.00         272.45     1113302.18
                      ------------------
                      &(&h->lock)->rlock           2864          [<ffffffff81368076>] blk_end_bidi_request+0x46/0x80
                      &(&h->lock)->rlock           1947          [<ffffffffa0004b12>] do_cciss_msix_intr+0x22/0x230 [cciss]
                      &(&h->lock)->rlock           2043          [<ffffffffa0003067>] cciss_softirq_done+0x1a7/0x2e0 [cciss]
                      &(&h->lock)->rlock           1017          [<ffffffff8136a524>] blk_queue_bio+0x214/0x350
                      ------------------
                      &(&h->lock)->rlock           4691          [<ffffffffa0004b12>] do_cciss_msix_intr+0x22/0x230 [cciss]
                      &(&h->lock)->rlock            848          [<ffffffffa0003067>] cciss_softirq_done+0x1a7/0x2e0 [cciss]
                      &(&h->lock)->rlock           2170          [<ffffffffa000390f>] do_cciss_request+0x49f/0x5f0 [cciss]
                      &(&h->lock)->rlock           1868          [<ffffffff81368076>] blk_end_bidi_request+0x46/0x80

...............................................................................................................................................................................................

                        rcu_node_level_1:          9301           9374           0.23         215.08       68258.27          34974          90592           0.08          23.28       50739.80
                        ----------------
                        rcu_node_level_1           8912          [<ffffffff810b7bd2>] __rcu_process_callbacks+0x262/0x380
                        rcu_node_level_1            150          [<ffffffff810b6bb8>] rcu_start_gp+0x128/0x2a0
                        rcu_node_level_1            312          [<ffffffff810b75e8>] force_quiescent_state+0x238/0x3d0
                        ----------------
                        rcu_node_level_1           6802          [<ffffffff810b7bd2>] __rcu_process_callbacks+0x262/0x380
                        rcu_node_level_1            265          [<ffffffff810b6bb8>] rcu_start_gp+0x128/0x2a0
                        rcu_node_level_1            150          [<ffffffff810b6e84>] rcu_report_qs_rnp+0x154/0x200
                        rcu_node_level_1           2157          [<ffffffff810b75e8>] force_quiescent_state+0x238/0x3d0

...............................................................................................................................................................................................

                               &rq->lock:          9212           9341           0.26          51.25       30250.93          43166        5264721           0.00         292.33     8781342.61
                               ---------
                               &rq->lock           1347          [<ffffffff81036205>] double_rq_lock+0x35/0x80
                               &rq->lock            573          [<ffffffff816446ae>] __schedule+0xbe/0x8f0
                               &rq->lock           7105          [<ffffffff81041d57>] try_to_wake_up+0x217/0x2e0
                               &rq->lock             17          [<ffffffff81045bb7>] scheduler_tick+0x47/0x290
                               ---------
                               &rq->lock            990          [<ffffffff81036232>] double_rq_lock+0x62/0x80
                               &rq->lock            809          [<ffffffff81036205>] double_rq_lock+0x35/0x80
                               &rq->lock           3263          [<ffffffff816446ae>] __schedule+0xbe/0x8f0
                               &rq->lock           3946          [<ffffffff8103724e>] sched_ttwu_pending+0x2e/0x60

...............................................................................................................................................................................................

           &(&delayed_root->lock)->rlock:          4755           4777           0.28          45.59        8775.03        2660197        3325704           0.12         249.52     3611291.08
           -----------------------------
           &(&delayed_root->lock)->rlock           4755          [<ffffffff81339685>] __btrfs_release_delayed_node+0x65/0x210
           &(&delayed_root->lock)->rlock             12          [<ffffffff81339ef3>] btrfs_next_delayed_node+0x33/0x90
           &(&delayed_root->lock)->rlock              9          [<ffffffff81339730>] __btrfs_release_delayed_node+0x110/0x210
           &(&delayed_root->lock)->rlock              1          [<ffffffff81339e91>] btrfs_first_delayed_node+0x21/0x50
           -----------------------------
           &(&delayed_root->lock)->rlock           4776          [<ffffffff81339685>] __btrfs_release_delayed_node+0x65/0x210
           &(&delayed_root->lock)->rlock              1          [<ffffffff81339730>] __btrfs_release_delayed_node+0x110/0x210

...............................................................................................................................................................................................

                                   key#5:          1754           2196           0.25          19.86        9412.14        1041221        1899991           0.00         265.81     2513405.22
                                   -----
                                   key#5           2196          [<ffffffff8139aca0>] __percpu_counter_add+0x50/0x80
                                   -----
                                   key#5           2196          [<ffffffff8139aca0>] __percpu_counter_add+0x50/0x80

...............................................................................................................................................................................................

                                    #1-W:          1881           1882           0.32          29.41        4747.43          56183       61004973           0.00         289.80     8977938.06
                                    #1-R:             0              0           0.00           0.00           0.00              1           1721           0.14           0.85         252.50
                                    ----
                                      #1           1027          [<ffffffff81322814>] btrfs_try_tree_write_lock+0x44/0x90
                                      #1            832          [<ffffffff81322971>] btrfs_tree_lock+0x111/0x250
                                      #1             23          [<ffffffff813225d1>] btrfs_clear_lock_blocking_rw+0x81/0xd0
                                    ----
                                      #1           1730          [<ffffffff813225d1>] btrfs_clear_lock_blocking_rw+0x81/0xd0
                                      #1            134          [<ffffffff81322814>] btrfs_try_tree_write_lock+0x44/0x90
                                      #1             18          [<ffffffff81322971>] btrfs_tree_lock+0x111/0x250

...............................................................................................................................................................................................

                                   key#8:          1206           1549           0.56        1674.04      730449.18           2381           2411           0.10         413.97       11122.83
                                   -----
                                   key#8            791          [<ffffffff8106f05a>] prepare_to_wait+0x2a/0x90
                                   key#8            758          [<ffffffff8106ef61>] finish_wait+0x41/0x80
                                   -----
                                   key#8            665          [<ffffffff8106f05a>] prepare_to_wait+0x2a/0x90
                                   key#8            703          [<ffffffff81035d62>] __wake_up+0x32/0x70
                                   key#8            181          [<ffffffff8106ef61>] finish_wait+0x41/0x80

...............................................................................................................................................................................................

                             &rq->lock/1:          1370           1370           0.29          54.46        6363.04          10285          20624           0.00          49.78       35196.69
                             -----------
                             &rq->lock/1           1369          [<ffffffff81036232>] double_rq_lock+0x62/0x80
                             &rq->lock/1              1          [<ffffffff810361a5>] double_lock_balance+0x55/0x80
                             -----------
                             &rq->lock/1            408          [<ffffffff81036205>] double_rq_lock+0x35/0x80
                             &rq->lock/1            835          [<ffffffff81036232>] double_rq_lock+0x62/0x80
                             &rq->lock/1              2          [<ffffffff81045bb7>] scheduler_tick+0x47/0x290
                             &rq->lock/1            105          [<ffffffff816446ae>] __schedule+0xbe/0x8f0

...............................................................................................................................................................................................

                                &q->lock:          1054           1076           0.24           7.22         957.06         192392         196801           0.00          43.01      125862.69
                                --------
                                &q->lock            551          [<ffffffff8108bd07>] generic_smp_call_function_single_interrupt+0x57/0x120
                                &q->lock            525          [<ffffffff8108b538>] generic_exec_single+0x48/0xb0
                                --------
                                &q->lock            581          [<ffffffff8108b538>] generic_exec_single+0x48/0xb0
                                &q->lock            495          [<ffffffff8108bd07>] generic_smp_call_function_single_interrupt+0x57/0x120

...............................................................................................................................................................................................

          &(&workers->order_lock)->rlock:          1024           1056           0.26          46.80        3041.60         171313         362763           0.00         151.59      408638.47
          ------------------------------
          &(&workers->order_lock)->rlock            233          [<ffffffff8131bef3>] run_ordered_completions+0x93/0xf0
          &(&workers->order_lock)->rlock            452          [<ffffffff8131beb4>] run_ordered_completions+0x54/0xf0
          &(&workers->order_lock)->rlock            371          [<ffffffff8131c6ff>] btrfs_queue_worker+0x24f/0x330
          ------------------------------
          &(&workers->order_lock)->rlock            209          [<ffffffff8131c6ff>] btrfs_queue_worker+0x24f/0x330
          &(&workers->order_lock)->rlock            523          [<ffffffff8131beb4>] run_ordered_completions+0x54/0xf0
          &(&workers->order_lock)->rlock            324          [<ffffffff8131bef3>] run_ordered_completions+0x93/0xf0

...............................................................................................................................................................................................

              &(&device->io_lock)->rlock:           915            935           0.11          31.64        2246.30          53113         225300           0.00         242.12      103747.47
              --------------------------
              &(&device->io_lock)->rlock            600          [<ffffffff81315aff>] schedule_bio.clone.35+0x5f/0x120
              &(&device->io_lock)->rlock            319          [<ffffffff813154b9>] run_scheduled_bios+0xb9/0x550
              &(&device->io_lock)->rlock             16          [<ffffffff813157df>] run_scheduled_bios+0x3df/0x550
              --------------------------
              &(&device->io_lock)->rlock            577          [<ffffffff813154b9>] run_scheduled_bios+0xb9/0x550
              &(&device->io_lock)->rlock            356          [<ffffffff81315aff>] schedule_bio.clone.35+0x5f/0x120
              &(&device->io_lock)->rlock              2          [<ffffffff813157df>] run_scheduled_bios+0x3df/0x550

...............................................................................................................................................................................................

                 &(&worker->lock)->rlock:           498            498           0.24          21.77        1023.69         207456         747957           0.00         294.41      918953.91
                 -----------------------
                 &(&worker->lock)->rlock            214          [<ffffffff8131c997>] worker_loop+0x1b7/0x560
                 &(&worker->lock)->rlock            240          [<ffffffff8131c635>] btrfs_queue_worker+0x185/0x330
                 &(&worker->lock)->rlock             39          [<ffffffff8131cb37>] worker_loop+0x357/0x560
                 &(&worker->lock)->rlock              5          [<ffffffff8131c907>] worker_loop+0x127/0x560
                 -----------------------
                 &(&worker->lock)->rlock            352          [<ffffffff8131c635>] btrfs_queue_worker+0x185/0x330
                 &(&worker->lock)->rlock            126          [<ffffffff8131c997>] worker_loop+0x1b7/0x560
                 &(&worker->lock)->rlock             16          [<ffffffff8131cb37>] worker_loop+0x357/0x560
                 &(&worker->lock)->rlock              4          [<ffffffff8131c907>] worker_loop+0x127/0x560

...............................................................................................................................................................................................

                                   key#3:           416            393           0.15           3.20         406.22          26471          26495           0.00          11.31       16587.75
                                   -----
                                   key#3            416          [<ffffffff8139aca0>] __percpu_counter_add+0x50/0x80
                                   -----
                                   key#3            416          [<ffffffff8139aca0>] __percpu_counter_add+0x50/0x80

...............................................................................................................................................................................................

                                pci_lock:           354            354           0.35           6.98         775.27           4618          11003           1.30          19.44       28055.20
                                --------
                                pci_lock            354          [<ffffffff813a0602>] pci_bus_read_config_word+0x42/0x90
                                --------
                                pci_lock            354          [<ffffffff813a0602>] pci_bus_read_config_word+0x42/0x90

...............................................................................................................................................................................................

                &(&workers->lock)->rlock:           190            211           0.31          17.49         650.04          57389         356581           0.00         174.07      338378.46
                ------------------------
                &(&workers->lock)->rlock             15          [<ffffffff8131c741>] btrfs_queue_worker+0x291/0x330
                &(&workers->lock)->rlock             96          [<ffffffff8131cc49>] worker_loop+0x469/0x560
                &(&workers->lock)->rlock            100          [<ffffffff8131c500>] btrfs_queue_worker+0x50/0x330
                ------------------------
                &(&workers->lock)->rlock             92          [<ffffffff8131cc49>] worker_loop+0x469/0x560
                &(&workers->lock)->rlock             92          [<ffffffff8131c500>] btrfs_queue_worker+0x50/0x330
                &(&workers->lock)->rlock             27          [<ffffffff8131c741>] btrfs_queue_worker+0x291/0x330

...............................................................................................................................................................................................

                   &(&zone->lock)->rlock:           101            101           0.46          14.35         220.54         480071         525173           0.13         267.65     2165929.71
                   ---------------------
                   &(&zone->lock)->rlock             80          [<ffffffff810ef9a8>] get_page_from_freelist+0x428/0x770
                   &(&zone->lock)->rlock             10          [<ffffffff810f1063>] __free_pages_ok+0xb3/0x510
                   &(&zone->lock)->rlock             11          [<ffffffff810efc89>] get_page_from_freelist+0x709/0x770
                   ---------------------
                   &(&zone->lock)->rlock             95          [<ffffffff810ef9a8>] get_page_from_freelist+0x428/0x770
                   &(&zone->lock)->rlock              2          [<ffffffff810f0494>] free_pcppages_bulk+0x34/0x430
                   &(&zone->lock)->rlock              2          [<ffffffff810efc89>] get_page_from_freelist+0x709/0x770
                   &(&zone->lock)->rlock              2          [<ffffffff810f1063>] __free_pages_ok+0xb3/0x510

...............................................................................................................................................................................................

                        rcu_node_level_0:            52             52           0.48           2.83          67.68           3425           7269           0.12           7.48        5188.04
                        ----------------
                        rcu_node_level_0              2          [<ffffffff810b7bf8>] __rcu_process_callbacks+0x288/0x380
                        rcu_node_level_0              2          [<ffffffff810b6bb8>] rcu_start_gp+0x128/0x2a0
                        rcu_node_level_0             41          [<ffffffff810b6d8f>] rcu_report_qs_rnp+0x5f/0x200
                        rcu_node_level_0              2          [<ffffffff810b76b2>] force_quiescent_state+0x302/0x3d0
                        ----------------
                        rcu_node_level_0              3          [<ffffffff810b7bf8>] __rcu_process_callbacks+0x288/0x380
                        rcu_node_level_0             31          [<ffffffff810b6d8f>] rcu_report_qs_rnp+0x5f/0x200
                        rcu_node_level_0              3          [<ffffffff810b6e84>] rcu_report_qs_rnp+0x154/0x200
                        rcu_node_level_0             11          [<ffffffff810b76c5>] force_quiescent_state+0x315/0x3d0

...............................................................................................................................................................................................

                   &fs_info->chunk_mutex:            43             43          81.42       31711.96      161037.65             60            107           0.33         530.32       12990.91
                   ---------------------
                   &fs_info->chunk_mutex             43          [<ffffffff812ddeac>] do_chunk_alloc+0x17c/0x380
                   ---------------------
                   &fs_info->chunk_mutex             43          [<ffffffff812ddee1>] do_chunk_alloc+0x1b1/0x380

...............................................................................................................................................................................................

               &(&zone->lru_lock)->rlock:            39             39           0.27           5.78          47.41        1010263        1124834           0.00         230.97     1795525.71
               -------------------------
               &(&zone->lru_lock)->rlock             39          [<ffffffff810f5112>] pagevec_lru_move_fn+0xb2/0x120
               -------------------------
               &(&zone->lru_lock)->rlock             38          [<ffffffff810f5112>] pagevec_lru_move_fn+0xb2/0x120
               &(&zone->lru_lock)->rlock              1          [<ffffffff810f4eec>] release_pages+0x10c/0x280

...............................................................................................................................................................................................

              &sb->s_type->i_mutex_key#1:            38             38        6237.51      170755.96     2454102.12           1209       15204412           4.00     1237685.06 25023392051.58
              --------------------------
              &sb->s_type->i_mutex_key#1             38          [<ffffffff811475cb>] do_last+0x2db/0x8e0
              --------------------------
              &sb->s_type->i_mutex_key#1             38          [<ffffffff811475cb>] do_last+0x2db/0x8e0

...............................................................................................................................................................................................

                        &input_pool.lock:            37             37           0.38           4.07          50.76           4097         121299           0.00          15.56       44327.31
                        ----------------
                        &input_pool.lock             37          [<ffffffff8142ecde>] mix_pool_bytes_extract+0x5e/0x180
                        ----------------
                        &input_pool.lock             37          [<ffffffff8142ecde>] mix_pool_bytes_extract+0x5e/0x180

...............................................................................................................................................................................................

                   &(&base->lock)->rlock:            35             36           0.56           7.13          54.76          10198        3391889           0.00         244.47      931853.03
                   ---------------------
                   &(&base->lock)->rlock              9          [<ffffffff8105b4ef>] add_timer_on+0x5f/0x110
                   &(&base->lock)->rlock              6          [<ffffffff8105a66b>] lock_timer_base.clone.20+0x3b/0x70
                   &(&base->lock)->rlock             20          [<ffffffff8105af37>] run_timer_softirq+0x47/0x3d0
                   &(&base->lock)->rlock              1          [<ffffffff8105b0d1>] run_timer_softirq+0x1e1/0x3d0
                   ---------------------
                   &(&base->lock)->rlock             10          [<ffffffff8105af37>] run_timer_softirq+0x47/0x3d0
                   &(&base->lock)->rlock              5          [<ffffffff8105a66b>] lock_timer_base.clone.20+0x3b/0x70
                   &(&base->lock)->rlock             21          [<ffffffff8105b4ef>] add_timer_on+0x5f/0x110

...............................................................................................................................................................................................

            &(&bp->indirect_lock)->rlock:            23             24           0.67           5.98          50.70           1191           2488           0.13          69.52        3008.80
            ----------------------------
            &(&bp->indirect_lock)->rlock             15          [<ffffffffa00c33e8>] bnx2_send_heart_beat+0x28/0x70 [bnx2]
            &(&bp->indirect_lock)->rlock              9          [<ffffffffa00c09be>] bnx2_reg_rd_ind+0x2e/0x60 [bnx2]
            ----------------------------
            &(&bp->indirect_lock)->rlock             12          [<ffffffffa00c09be>] bnx2_reg_rd_ind+0x2e/0x60 [bnx2]
            &(&bp->indirect_lock)->rlock             12          [<ffffffffa00c33e8>] bnx2_send_heart_beat+0x28/0x70 [bnx2]

...............................................................................................................................................................................................

                                    #8-W:            17             17           0.88          26.92          87.42            519          79608           0.11         199.71       70451.50
                                    #8-R:             2              2           7.12           9.11          16.23            306           5979           0.14          20.87        1907.29
                                    ----
                                      #8              2          [<ffffffff813226c0>] btrfs_tree_read_lock+0xa0/0x130
                                      #8              3          [<ffffffff813225d1>] btrfs_clear_lock_blocking_rw+0x81/0xd0
                                      #8              8          [<ffffffff81322971>] btrfs_tree_lock+0x111/0x250
                                      #8              6          [<ffffffff81322814>] btrfs_try_tree_write_lock+0x44/0x90
                                    ----
                                      #8             15          [<ffffffff813225d1>] btrfs_clear_lock_blocking_rw+0x81/0xd0
                                      #8              1          [<ffffffff813226c0>] btrfs_tree_read_lock+0xa0/0x130
                                      #8              3          [<ffffffff81322814>] btrfs_try_tree_write_lock+0x44/0x90

...............................................................................................................................................................................................

                                    #1-W:             7              7           0.49          16.12          29.94             17             56           0.16          19.93         130.92
                                    #1-R:             8              8           0.84          12.72          32.03        1581686       39420258           0.00         292.73    33352906.21
                                    ----
                                      #1              4          [<ffffffff81322971>] btrfs_tree_lock+0x111/0x250
                                      #1              2          [<ffffffff813225d1>] btrfs_clear_lock_blocking_rw+0x81/0xd0
                                      #1              5          [<ffffffff813226c0>] btrfs_tree_read_lock+0xa0/0x130
                                      #1              3          [<ffffffff8132258c>] btrfs_clear_lock_blocking_rw+0x3c/0xd0
                                    ----
                                      #1              4          [<ffffffff81322971>] btrfs_tree_lock+0x111/0x250
                                      #1              6          [<ffffffff813225d1>] btrfs_clear_lock_blocking_rw+0x81/0xd0
                                      #1              2          [<ffffffff8132258c>] btrfs_clear_lock_blocking_rw+0x3c/0xd0
                                      #1              2          [<ffffffff813226c0>] btrfs_tree_read_lock+0xa0/0x130

...............................................................................................................................................................................................

                                    #7-W:             4              5           0.60           3.20           6.02              7          15996           0.16          84.83       32227.35
                                    #7-R:             8              8           0.68           6.00          20.10           1249           7877           0.11          43.70        8070.17
                                    ----
                                      #7              8          [<ffffffff813226c0>] btrfs_tree_read_lock+0xa0/0x130
                                      #7              3          [<ffffffff813225d1>] btrfs_clear_lock_blocking_rw+0x81/0xd0
                                      #7              2          [<ffffffff81322971>] btrfs_tree_lock+0x111/0x250
                                    ----
                                      #7              8          [<ffffffff813225d1>] btrfs_clear_lock_blocking_rw+0x81/0xd0
                                      #7              4          [<ffffffff813226c0>] btrfs_tree_read_lock+0xa0/0x130
                                      #7              1          [<ffffffff8132258c>] btrfs_clear_lock_blocking_rw+0x3c/0xd0

...............................................................................................................................................................................................

   &(&cur_trans->delayed_refs.lock)->rlo:            11             11           0.76          49.37         121.11           4104          79710           0.13         106.42       81367.28
   -------------------------------------
   &(&cur_trans->delayed_refs.lock)->rlo              8          [<ffffffff812e079d>] run_clustered_refs+0x13d/0x870
   &(&cur_trans->delayed_refs.lock)->rlo              2          [<ffffffff81331328>] btrfs_add_delayed_data_ref+0xb8/0x1a0
   &(&cur_trans->delayed_refs.lock)->rlo              1          [<ffffffff81331198>] btrfs_add_delayed_tree_ref+0xb8/0x190
   -------------------------------------
   &(&cur_trans->delayed_refs.lock)->rlo              2          [<ffffffff812e0f30>] btrfs_run_delayed_refs+0x60/0x220
   &(&cur_trans->delayed_refs.lock)->rlo              3          [<ffffffff81331328>] btrfs_add_delayed_data_ref+0xb8/0x1a0
   &(&cur_trans->delayed_refs.lock)->rlo              2          [<ffffffff812e079d>] run_clustered_refs+0x13d/0x870
   &(&cur_trans->delayed_refs.lock)->rlo              4          [<ffffffff81331198>] btrfs_add_delayed_tree_ref+0xb8/0x190

...............................................................................................................................................................................................

                                   key#5:            11             11           0.40          15.96          31.14          72155         158593           0.00          41.83      100574.86
                                   -----
                                   key#5             11          [<ffffffff8139aca0>] __percpu_counter_add+0x50/0x80
                                   -----
                                   key#5             11          [<ffffffff8139aca0>] __percpu_counter_add+0x50/0x80

...............................................................................................................................................................................................

                     &(&ei->lock)->rlock:             8              9           0.67          12.21          31.33           5681       45613821           0.00         281.97     7359239.04
                     -------------------
                     &(&ei->lock)->rlock              2          [<ffffffff812dfbc7>] btrfs_delalloc_reserve_metadata+0xb7/0x280
                     &(&ei->lock)->rlock              2          [<ffffffff812f3052>] btrfs_split_extent_hook+0x32/0x50
                     &(&ei->lock)->rlock              3          [<ffffffff812dfddd>] btrfs_delalloc_release_metadata+0x4d/0xd0
                     &(&ei->lock)->rlock              1          [<ffffffff812f30a2>] btrfs_merge_extent_hook+0x32/0x50
                     -------------------
                     &(&ei->lock)->rlock              1          [<ffffffff812f30a2>] btrfs_merge_extent_hook+0x32/0x50
                     &(&ei->lock)->rlock              3          [<ffffffff812dfce8>] btrfs_delalloc_reserve_metadata+0x1d8/0x280
                     &(&ei->lock)->rlock              2          [<ffffffff812dfbc7>] btrfs_delalloc_reserve_metadata+0xb7/0x280
                     &(&ei->lock)->rlock              2          [<ffffffff812dfddd>] btrfs_delalloc_release_metadata+0x4d/0xd0

...............................................................................................................................................................................................

             &(&root->inode_lock)->rlock:             9              9           1.04           8.89          30.84            106            183           0.14           6.92         216.19
             ---------------------------
             &(&root->inode_lock)->rlock              6          [<ffffffff81339a28>] btrfs_get_or_create_delayed_node+0x118/0x1c0
             &(&root->inode_lock)->rlock              3          [<ffffffff813398ac>] btrfs_get_delayed_node+0x7c/0xe0
             ---------------------------
             &(&root->inode_lock)->rlock              7          [<ffffffff813398ac>] btrfs_get_delayed_node+0x7c/0xe0
             &(&root->inode_lock)->rlock              2          [<ffffffff81339a28>] btrfs_get_or_create_delayed_node+0x118/0x1c0

...............................................................................................................................................................................................

                    &delayed_node->mutex:             9              9          19.39         424.78         801.82           6632        6651256           0.16         256.16    10445976.00
                    --------------------
                    &delayed_node->mutex              1          [<ffffffff8133a333>] btrfs_insert_delayed_items+0x43/0x450
                    &delayed_node->mutex              1          [<ffffffff81339c3b>] btrfs_update_delayed_inode+0x3b/0x160
                    &delayed_node->mutex              6          [<ffffffff8133baaf>] btrfs_delayed_update_inode+0x4f/0x480
                    &delayed_node->mutex              1          [<ffffffff8133966f>] __btrfs_release_delayed_node+0x4f/0x210
                    --------------------
                    &delayed_node->mutex              3          [<ffffffff8133966f>] __btrfs_release_delayed_node+0x4f/0x210
                    &delayed_node->mutex              2          [<ffffffff8133baaf>] btrfs_delayed_update_inode+0x4f/0x480
                    &delayed_node->mutex              3          [<ffffffff81339c3b>] btrfs_update_delayed_inode+0x3b/0x160
                    &delayed_node->mutex              1          [<ffffffff8133a333>] btrfs_insert_delayed_items+0x43/0x450

...............................................................................................................................................................................................

         &(&futex_queues[i].lock)->rlock:             6              6           0.87          23.55          31.77            120            189           0.13          23.34         520.10
         -------------------------------
         &(&futex_queues[i].lock)->rlock              3          [<ffffffff810887b7>] futex_requeue+0x147/0x8a0
         &(&futex_queues[i].lock)->rlock              1          [<ffffffff81087529>] futex_wait_setup+0x69/0x100
         &(&futex_queues[i].lock)->rlock              2          [<ffffffff81087e1a>] futex_wake+0x7a/0x130
         -------------------------------
         &(&futex_queues[i].lock)->rlock              4          [<ffffffff81087529>] futex_wait_setup+0x69/0x100
         &(&futex_queues[i].lock)->rlock              1          [<ffffffff81088ac1>] futex_requeue+0x451/0x8a0
         &(&futex_queues[i].lock)->rlock              1          [<ffffffff81087e1a>] futex_wake+0x7a/0x130

...............................................................................................................................................................................................

          &(&mm->page_table_lock)->rlock:             5              5           1.03           7.25          21.39            143          27691           0.12         174.29       12394.14
          ------------------------------
          &(&mm->page_table_lock)->rlock              4          [<ffffffff8110c905>] handle_pte_fault+0x735/0x8d0
          &(&mm->page_table_lock)->rlock              1          [<ffffffff81116889>] anon_vma_prepare+0xa9/0x1a0
          ------------------------------
          &(&mm->page_table_lock)->rlock              1          [<ffffffff8110c905>] handle_pte_fault+0x735/0x8d0
          &(&mm->page_table_lock)->rlock              4          [<ffffffff8110c2cb>] handle_pte_fault+0xfb/0x8d0

...............................................................................................................................................................................................

                                   key#5:             3              3           0.77           2.41           4.74          72181         158611           0.11           8.28       44753.28
                                   -----
                                   key#5              3          [<ffffffff8139aca0>] __percpu_counter_add+0x50/0x80
                                   -----
                                   key#5              3          [<ffffffff8139aca0>] __percpu_counter_add+0x50/0x80

...............................................................................................................................................................................................

               &(&dentry->d_lock)->rlock:             3              3           0.85           1.37           3.27           4248         188675           0.09          68.86       28875.13
               -------------------------
               &(&dentry->d_lock)->rlock              2          [<ffffffff8114f8d2>] dput+0x32/0x1d0
               &(&dentry->d_lock)->rlock              1          [<ffffffff81150801>] __d_lookup+0xe1/0x1a0
               -------------------------
               &(&dentry->d_lock)->rlock              1          [<ffffffff81143a71>] unlazy_walk+0x71/0x230
               &(&dentry->d_lock)->rlock              1          [<ffffffff8114527a>] follow_managed+0x17a/0x2f0
               &(&dentry->d_lock)->rlock              1          [<ffffffff81150801>] __d_lookup+0xe1/0x1a0

...............................................................................................................................................................................................

                         &mm->mmap_sem-W:             0              0           0.00           0.00           0.00             23          22621           0.13         997.70       45583.75
                         &mm->mmap_sem-R:             3              3          22.33          44.28          94.12             65          14927           0.16       12039.15       46770.09
                         ---------------
                           &mm->mmap_sem              3          [<ffffffff8164bcef>] do_page_fault+0x1ef/0x4e0
                         ---------------
                           &mm->mmap_sem              2          [<ffffffff811130cb>] sys_munmap+0x4b/0x80
                           &mm->mmap_sem              1          [<ffffffff81114075>] sys_mprotect+0xd5/0x1e0

...............................................................................................................................................................................................

                   &fs_info->reloc_mutex:             2              2          25.60          42.81          68.40             46             46           0.78         967.53       12719.09
                   ---------------------
                   &fs_info->reloc_mutex              2          [<ffffffff812f15e9>] btrfs_record_root_in_trans+0x49/0x90
                   ---------------------
                   &fs_info->reloc_mutex              2          [<ffffffff812f15e9>] btrfs_record_root_in_trans+0x49/0x90

...............................................................................................................................................................................................

                     &(&fs->lock)->rlock:             2              2           2.17           4.36           6.54            129           2682           0.13          17.91        2096.75
                     -------------------
                     &(&fs->lock)->rlock              2          [<ffffffff81143b90>] unlazy_walk+0x190/0x230
                     -------------------
                     &(&fs->lock)->rlock              2          [<ffffffff81143b90>] unlazy_walk+0x190/0x230

...............................................................................................................................................................................................

                           &tree->lock-W:             1              1           1.68           1.68           1.68           1663           7048           0.13          25.58        9158.14
                           &tree->lock-R:             1              1          10.57          10.57          10.57         104433       30575432           0.00         270.39     5343173.44
                           -------------
                             &tree->lock              1          [<ffffffff81304115>] unpin_extent_cache+0x35/0xc0
                             &tree->lock              1          [<ffffffff8131696f>] __btrfs_map_block+0xff/0x880
                           -------------
                             &tree->lock              1          [<ffffffff812f5784>] btrfs_get_extent+0x94/0x960
                             &tree->lock              1          [<ffffffff813189f3>] __btrfs_alloc_chunk+0x483/0x760

...............................................................................................................................................................................................

       &(&futex_queues[i].lock)->rlock/1:             2              2           1.25           1.35           2.60              6              7           0.11          15.05          35.07
       ---------------------------------
       &(&futex_queues[i].lock)->rlock/1              2          [<ffffffff81088ac1>] futex_requeue+0x451/0x8a0
       ---------------------------------
       &(&futex_queues[i].lock)->rlock/1              2          [<ffffffff81087529>] futex_wait_setup+0x69/0x100

...............................................................................................................................................................................................

   &(&fs_info->block_group_cache_lock)->:             2              2           0.76           1.68           2.44           5112          90403           0.12          68.36       33084.13
   -------------------------------------
   &(&fs_info->block_group_cache_lock)->              2          [<ffffffff812d80f8>] block_group_cache_tree_search+0x28/0xd0
   -------------------------------------
   &(&fs_info->block_group_cache_lock)->              1          [<ffffffff812d8507>] btrfs_add_block_group_cache+0x27/0xd0
   &(&fs_info->block_group_cache_lock)->              1          [<ffffffff812d80f8>] block_group_cache_tree_search+0x28/0xd0

...............................................................................................................................................................................................

              &(&newf->file_lock)->rlock:             2              2           0.65           0.95           1.60            161          42641           0.12          50.10        6336.22
              --------------------------
              &(&newf->file_lock)->rlock              2          [<ffffffff81154dbb>] alloc_fd+0x3b/0x150
              --------------------------
              &(&newf->file_lock)->rlock              1          [<ffffffff81135fc7>] fd_install+0x47/0x80
              &(&newf->file_lock)->rlock              1          [<ffffffff81154dbb>] alloc_fd+0x3b/0x150

...............................................................................................................................................................................................

                 &(&n->list_lock)->rlock:             2              2           0.61           1.90           2.51          20167          51344           0.13          22.06       40767.73
                 -----------------------
                 &(&n->list_lock)->rlock              1          [<ffffffff8112e2f9>] unfreeze_partials+0xe9/0x270
                 &(&n->list_lock)->rlock              1          [<ffffffff8112e597>] get_partial_node.clone.38+0x57/0x200
                 -----------------------
                 &(&n->list_lock)->rlock              1          [<ffffffff8112e597>] get_partial_node.clone.38+0x57/0x200
                 &(&n->list_lock)->rlock              1          [<ffffffff8112e808>] __slab_free+0xc8/0x320

...............................................................................................................................................................................................

                         tasklist_lock-W:             1              1           3.02           3.02           3.02             74            269           0.18          29.45         894.89
                         tasklist_lock-R:             0              0           0.00           0.00           0.00            109            664           0.17          23.79        2439.21
                         ---------------
                           tasklist_lock              1          [<ffffffff8104fb75>] do_exit+0x1f5/0x880
                         ---------------
                           tasklist_lock              1          [<ffffffff8104e38a>] release_task+0x7a/0x4a0

...............................................................................................................................................................................................

                                   key#2:             1              1           2.78           2.78           2.78            970           1218           0.12          30.10        3074.92
                                   -----
                                   key#2              1          [<ffffffff81035d62>] __wake_up+0x32/0x70
                                   -----
                                   key#2              1          [<ffffffff81035d62>] __wake_up+0x32/0x70

...............................................................................................................................................................................................

                    &irq_desc_lock_class:             1              1           2.91           2.91           2.91            619         247860           0.00          24.66       73262.83
                    --------------------
                    &irq_desc_lock_class              1          [<ffffffff810b1df3>] handle_irq_event+0x53/0x70
                    --------------------
                    &irq_desc_lock_class              1          [<ffffffff810b6225>] show_interrupts+0x125/0x310

...............................................................................................................................................................................................

               &sb->s_type->i_lock_key#1:             1              1          10.62          10.62          10.62          10383        3331659           0.00         185.09      451619.45
               -------------------------
               &sb->s_type->i_lock_key#1              1          [<ffffffff8113ce1b>] inode_add_bytes+0x2b/0x90
               -------------------------
               &sb->s_type->i_lock_key#1              1          [<ffffffff8113cd25>] inode_get_bytes+0x25/0x60

...............................................................................................................................................................................................

                                    #5-W:             0              0           0.00           0.00           0.00           2725          13375           0.15          59.95       19040.42
                                    #5-R:             1              1           3.46           3.46           3.46            100            488           0.14          19.39         468.96
                                    ----
                                      #5              1          [<ffffffff813226c0>] btrfs_tree_read_lock+0xa0/0x130
                                    ----
                                      #5              1          [<ffffffff813225d1>] btrfs_clear_lock_blocking_rw+0x81/0xd0

...............................................................................................................................................................................................

         &(&cluster->refill_lock)->rlock:             1              1           1.09           1.09           1.09           3317          22385           0.59          59.82       21406.91
         -------------------------------
         &(&cluster->refill_lock)->rlock              1          [<ffffffff812de39d>] find_free_extent.clone.61+0x2ed/0xb60
         -------------------------------
         &(&cluster->refill_lock)->rlock              1          [<ffffffff812de39d>] find_free_extent.clone.61+0x2ed/0xb60

...............................................................................................................................................................................................

        &(&journal->j_state_lock)->rlock:             1              1           5.88           5.88           5.88             27            706           0.12          19.30         536.47
        --------------------------------
        &(&journal->j_state_lock)->rlock              1          [<ffffffff81221d42>] start_this_handle+0x72/0x450
        --------------------------------
        &(&journal->j_state_lock)->rlock              1          [<ffffffff81224463>] journal_commit_transaction+0x93/0x12e0

...............................................................................................................................................................................................

                 &sb->s_type->i_lock_key:             0              0           0.00           0.00           0.00              8             63           0.16           0.83          13.61
                         inode_hash_lock:             0              0           0.00           0.00           0.00             70          16186           0.12          47.03        7947.19
                             sysfs_mutex:             0              0           0.00           0.00           0.00             10         121685           0.16         183.26       31074.94
                             sysctl_lock:             0              0           0.00           0.00           0.00              3             20           0.14           0.79           4.54
                                 sb_lock:             0              0           0.00           0.00           0.00            255           1156           0.12          13.19        1136.10
                                pgd_lock:             0              0           0.00           0.00           0.00             32             39           0.24           5.44          51.47
                     file_systems_lock-R:             0              0           0.00           0.00           0.00              1              1          36.40          36.40          36.40
                 &rcu_bh_state.onofflock:             0              0           0.00           0.00           0.00             12            126           2.75          12.92         654.23
                &(&stopper->lock)->rlock:             0              0           0.00           0.00           0.00            846           1290           0.12          17.48        1799.36
               __vsyscall_gtod_data.lock:             0              0           0.00           0.00           0.00              0          61137           0.00           6.19       56046.19
                                     key:             0              0           0.00           0.00           0.00             41             69           0.13          23.03         239.94
                     tick_broadcast_lock:             0              0           0.00           0.00           0.00              0              2           0.62           0.62           1.24
              &rcu_sched_state.onofflock:             0              0           0.00           0.00           0.00            262            438           2.29          30.87        3161.92
                  random_write_wait.lock:             0              0           0.00           0.00           0.00             10             58           0.12           0.65          10.72
                     kthread_create_lock:             0              0           0.00           0.00           0.00             42             63           0.12           4.30          51.22
                   &(&gcwq->lock)->rlock:             0              0           0.00           0.00           0.00            105          90122           0.15         177.89      258869.32
                                events-R:             0              0           0.00           0.00           0.00              0          29386           2.87      162856.57      582002.32
                              &tbl->lock:             0              0           0.00           0.00           0.00              0            750           0.12          15.59         573.25
                                   key#4:             0              0           0.00           0.00           0.00              7             14           0.14           1.03           7.29
                        &namespace_sem-R:             0              0           0.00           0.00           0.00              2              9           0.21          71.66         273.46
                         vfsmount_lock-R:             0              0           0.00           0.00           0.00              0          47546           0.09         231.35       17858.50
             &(&sighand->siglock)->rlock:             0              0           0.00           0.00           0.00             94            477           0.12          25.91         732.07
                           watchdog_lock:             0              0           0.00           0.00           0.00           1223           1223           3.60          32.00        9341.38
                &(&p->alloc_lock)->rlock:             0              0           0.00           0.00           0.00             74            474           0.11          18.14         654.17
                         pci_config_lock:             0              0           0.00           0.00           0.00           4618          11003           1.05           5.87       14982.96
                             pidmap_lock:             0              0           0.00           0.00           0.00             71            142           0.28           8.11         134.37
                             &p->pi_lock:             0              0           0.00           0.00           0.00         213010         757086           0.00         293.57     2025089.02
                           vmlist_lock-R:             0              0           0.00           0.00           0.00              2              2           4.72          17.13          21.85
                                bdi_lock:             0              0           0.00           0.00           0.00              0              3          11.79          40.45          77.47
              &sb->s_type->i_mutex_key#4:             0              0           0.00           0.00           0.00              1              2           3.36           4.76           8.12
                      &(&i->lock)->rlock:             0              0           0.00           0.00           0.00              0              4          15.80          24.57          82.96
                               balancing:             0              0           0.00           0.00           0.00              0         175836           0.08         221.10      480030.53
                                   key#2:             0              0           0.00           0.00           0.00             13            121           0.12           2.48          22.92
                         &cpu_base->lock:             0              0           0.00           0.00           0.00            156        5873100           0.00         244.46     3950806.10
               &sb->s_type->i_lock_key#9:             0              0           0.00           0.00           0.00              7             42           0.09          12.99          27.24
                               bdev_lock:             0              0           0.00           0.00           0.00              2              2           6.92          15.59          22.51
                               tty_mutex:             0              0           0.00           0.00           0.00              2              6           0.79           5.96          15.54
                                  &timer:             0              0           0.00           0.00           0.00              0         222176           0.00         167.66       23889.89
                          files_lglock-R:             0              0           0.00           0.00           0.00              0          28290           0.09          82.06        3168.93
                  &mapping->i_mmap_mutex:             0              0           0.00           0.00           0.00            142            676           0.16           9.11         386.69
                   &fsnotify_mark_srcu-R:             0              0           0.00           0.00           0.00              0       15204818           0.08         219.99     1404138.22
                &rcu_sched_state.fqslock:             0              0           0.00           0.00           0.00              0           1273           0.11          62.81       21532.22
                &child->perf_event_mutex:             0              0           0.00           0.00           0.00             63             63           0.19           3.81          51.32
                                   key#1:             0              0           0.00           0.00           0.00             77           1263           0.12          20.46         248.17
                      nl_table_wait.lock:             0              0           0.00           0.00           0.00              0             51           0.12           0.52          12.63
                         nl_table_lock-R:             0              0           0.00           0.00           0.00              0             51           0.12           0.54          11.37
                          &port_lock_key:             0              0           0.00           0.00           0.00              4             13           0.12          21.57          77.56
               &sb->s_type->i_lock_key#8:             0              0           0.00           0.00           0.00              1             42           0.10           6.65          24.19
                        proc_subdir_lock:             0              0           0.00           0.00           0.00             14           5375           0.15         186.85        7254.87
               &sb->s_type->i_lock_key#4:             0              0           0.00           0.00           0.00              2          57045           0.09           2.02       10135.98
               &sb->s_type->i_lock_key#3:             0              0           0.00           0.00           0.00              4             10           0.13           8.78          22.38
                         rcu_read_lock-R:             0              0           0.00           0.00           0.00              0      178190373           0.00         324.90    40245916.47
                            &port->mutex:             0              0           0.00           0.00           0.00              3              3           1.07           2.76           5.79
                      destroy_waitq.lock:             0              0           0.00           0.00           0.00              0              1           0.18           0.18           0.18
                         &watchdog_timer:             0              0           0.00           0.00           0.00              0           1223           4.23          39.90       11079.09
                   &(&uhci->lock)->rlock:             0              0           0.00           0.00           0.00              0           2445           6.85          33.53       18757.36
         &(&ent->pde_unload_lock)->rlock:             0              0           0.00           0.00           0.00            185          14416           0.12           2.42        2013.00
                             &ipmi_timer:             0              0           0.00           0.00           0.00              0            611           2.36          22.99        3903.64
                           &ndev->lock-R:             0              0           0.00           0.00           0.00              0             30           0.15           1.18          14.23
                 &(&mc->mca_lock)->rlock:             0              0           0.00           0.00           0.00              0             10           0.16           0.20           1.79
                      rcu_read_lock_bh-R:             0              0           0.00           0.00           0.00              0            470           0.08           5.42         212.82
                    addrconf_verify_lock:             0              0           0.00           0.00           0.00              0             10           2.03           4.50          31.63
                               cdev_lock:             0              0           0.00           0.00           0.00              4              4           1.01           1.22           4.48
                           big_tty_mutex:             0              0           0.00           0.00           0.00              2              8           0.12           8.92          24.49
                     &tty->termios_mutex:             0              0           0.00           0.00           0.00              1              1           0.86           0.86           0.86
                                   key#1:             0              0           0.00           0.00           0.00              2              7           0.12           0.57           1.77
                          tty_files_lock:             0              0           0.00           0.00           0.00              2              8           0.14           0.78           2.62
                   &(&port->lock)->rlock:             0              0           0.00           0.00           0.00              2              4           0.15           0.43           1.14
                     tty_ldisc_idle.lock:             0              0           0.00           0.00           0.00              2              2           0.22           0.29           0.51
                 &type->s_umount_key#2-R:             0              0           0.00           0.00           0.00              1              4           0.14           0.70           1.87
                  &sig->cred_guard_mutex:             0              0           0.00           0.00           0.00              7              7        1208.35       86729.98      135026.20
                 &type->s_umount_key#2-R:             0              0           0.00           0.00           0.00              1              4           0.14           0.95           2.08
                 &type->s_umount_key#3-R:             0              0           0.00           0.00           0.00              1              4           0.14           0.66           1.79
                        &anon_vma->mutex:             0              0           0.00           0.00           0.00            289          45299           0.16          61.16        9742.99
                             rename_lock:             0              0           0.00           0.00           0.00              5             81           0.36           4.08         106.48
                         &mm->mmap_sem/1:             0              0           0.00           0.00           0.00              0              6          47.06         996.42        2388.13
        &(&mm->page_table_lock)->rlock/1:             0              0           0.00           0.00           0.00              0            160           0.15         138.88        1619.22
           &flush_state[i].tlbstate_lock:             0              0           0.00           0.00           0.00              3            104           1.47          63.00         560.42
                 &type->s_umount_key#1-R:             0              0           0.00           0.00           0.00              1              4           0.13           0.88           2.36
              &sb->s_type->i_mutex_key#6:             0              0           0.00           0.00           0.00             23           5378           3.28         190.96       30379.37
                         dcache_lru_lock:             0              0           0.00           0.00           0.00             59             65           0.13           3.05          58.06
             &(&dentry->d_lock)->rlock/1:             0              0           0.00           0.00           0.00             76            101           0.12           2.71          43.64
                                &p->lock:             0              0           0.00           0.00           0.00              0           3432           0.19      174281.38      367821.10
                 &type->s_umount_key#1-R:             0              0           0.00           0.00           0.00              1              4           0.15           0.51           1.63
                 &type->s_umount_key#1-R:             0              0           0.00           0.00           0.00              1              4           0.14           0.66           1.82
              &sb->s_type->i_mutex_key#7:             0              0           0.00           0.00           0.00             28            193           0.19          15.96         167.33
                                   key#2:             0              0           0.00           0.00           0.00            146           2648           0.12          14.74         576.25
            &sb->s_type->i_mutex_key#7/1:             0              0           0.00           0.00           0.00              2              2           1.32           2.00           3.31
                          &(work)->timer:             0              0           0.00           0.00           0.00              0          29294           0.66         178.41      242959.28
                         (&(work)->work):             0              0           0.00           0.00           0.00              0          29294           2.48      162856.19      550955.29
                 &tty->atomic_write_lock:             0              0           0.00           0.00           0.00              0              1          15.87          15.87          15.87
                         unix_table_lock:             0              0           0.00           0.00           0.00              3             14           0.12           4.95          10.78
                            &u->readlock:             0              0           0.00           0.00           0.00              0              3           9.13          40.92          61.73
              &sb->s_type->i_mutex_key#8:             0              0           0.00           0.00           0.00             15            187           0.69         125.62        3975.40
                  sysfs_open_dirent_lock:             0              0           0.00           0.00           0.00              7          36147           0.12           2.59        4791.87
                          &buffer->mutex:             0              0           0.00           0.00           0.00              0          12049           1.10          75.73       33047.12
                               swap_lock:             0              0           0.00           0.00           0.00              9           1395           0.12           2.13         198.34
                               uts_sem-R:             0              0           0.00           0.00           0.00              2              2           0.99           1.25           2.24
                                   key#2:             0              0           0.00           0.00           0.00              6              9           0.13          30.51          52.87
                      &(&u->lock)->rlock:             0              0           0.00           0.00           0.00              6             17           0.13          12.83          56.61
                &(&wb->list_lock)->rlock:             0              0           0.00           0.00           0.00            630           2835           0.13          73.33       14039.38
                    &(&f->f_lock)->rlock:             0              0           0.00           0.00           0.00              0              4           0.16           2.08           4.51
      &af_unix_sk_receive_queue_lock_key:             0              0           0.00           0.00           0.00              8             18           0.12           8.27          13.28
                                   key#2:             0              0           0.00           0.00           0.00              1              9           0.12           0.37           1.91
        &(&mapping->private_lock)->rlock:             0              0           0.00           0.00           0.00             34            120           0.11           4.40          75.85
                          &hcd->rh_timer:             0              0           0.00           0.00           0.00              0           2445           7.45          34.44       23314.49
                   random_read_wait.lock:             0              0           0.00           0.00           0.00            105            530           0.12           6.98         258.16
                       &wb->wakeup_timer:             0              0           0.00           0.00           0.00              0              2          11.45          15.90          27.35
               &sb->s_type->i_lock_key#1:             0              0           0.00           0.00           0.00            495           1019           0.10           2.20         454.04
        &(kretprobe_table_locks[i].lock):             0              0           0.00           0.00           0.00             60             63           0.14           2.40          37.70
                            init_fs.lock:             0              0           0.00           0.00           0.00              5             25           0.13           0.79           7.02
                           binfmt_lock-R:             0              0           0.00           0.00           0.00              6             15           0.14           1.06           7.76
                    &(&u->lock)->rlock/1:             0              0           0.00           0.00           0.00              2              2           0.11           0.12           0.23
                      &sync_supers_timer:             0              0           0.00           0.00           0.00              0            102           4.87          40.28        1058.23
                              rtnl_mutex:             0              0           0.00           0.00           0.00              1              3           0.96           4.78           8.96
                 &type->s_umount_key#1-R:             0              0           0.00           0.00           0.00              1              4           0.12           0.71           1.82
            &sb->s_type->i_mutex_key#1/1:             0              0           0.00           0.00           0.00              0              1          18.93          18.93          18.93
              &sb->s_type->i_mutex_key#1:             0              0           0.00           0.00           0.00              2              3           2.74           8.93          17.08
                       &tty->output_lock:             0              0           0.00           0.00           0.00              1              2           5.26           6.40          11.66
                 &type->s_umount_key#2-R:             0              0           0.00           0.00           0.00              1              4           0.14           0.63           1.65
                    &(&ifa->lock)->rlock:             0              0           0.00           0.00           0.00              0             20           0.13           0.55           4.19
                         &tb->tb6_lock-W:             0              0           0.00           0.00           0.00              0             77           0.24          26.21         274.21
                         &tb->tb6_lock-R:             0              0           0.00           0.00           0.00              0             10           1.84           2.93          21.86
                      fib6_walker_lock-W:             0              0           0.00           0.00           0.00              0             80           0.12           1.11          14.65
                      fib6_walker_lock-R:             0              0           0.00           0.00           0.00              0             12           0.15           0.85           4.15
                           slock-AF_INET:             0              0           0.00           0.00           0.00              0              3           0.12           0.66           0.93
                           clock-AF_INET:             0              0           0.00           0.00           0.00              0              3           0.14           0.68           0.96
                          file_lock_lock:             0              0           0.00           0.00           0.00              0              3           1.51           8.32          11.48
                 &type->s_umount_key#2-R:             0              0           0.00           0.00           0.00              1              6          50.25        1626.26        2684.73
                     edac_pci_ctls_mutex:             0              0           0.00           0.00           0.00            105            595           0.59          26.15        2202.75
               &s->s_dquot.dqonoff_mutex:             0              0           0.00           0.00           0.00              1              6           0.22           3.61           7.01
   &(&transaction->t_handle_lock)->rlock:             0              0           0.00           0.00           0.00             14            641           0.12           4.82         227.42
                              jbd_handle:             0              0           0.00           0.00           0.00              0            318           2.29         563.47        3268.22
                     &sbi->s_orphan_lock:             0              0           0.00           0.00           0.00              2              2           8.90          44.39          53.29
       &(&journal->j_revoke_lock)->rlock:             0              0           0.00           0.00           0.00              1              8           0.25           0.83           3.33
                                   key#4:             0              0           0.00           0.00           0.00             12            318           0.12           3.25          58.03
                     &ei->truncate_mutex:             0              0           0.00           0.00           0.00              5              7           1.03         100.55         177.33
           &(&bgl->locks[i].lock)->rlock:             0              0           0.00           0.00           0.00              6              8           0.15           1.42           3.38
         &(&sbi->s_next_gen_lock)->rlock:             0              0           0.00           0.00           0.00              0              1           0.26           0.26           0.26
                            events_nrt-R:             0              0           0.00           0.00           0.00              0             61        2102.22       39988.47      317455.07
           &sig->threadgroup_fork_lock-R:             0              0           0.00           0.00           0.00              3             51           4.11          29.13         275.75
          &(&table->hash[i].lock)->rlock:             0              0           0.00           0.00           0.00              0            518           0.12           0.64          96.07
             &(&rt_hash_locks[i])->rlock:             0              0           0.00           0.00           0.00             27            135           0.19           5.85         233.23
                         &sem->wait_lock:             0              0           0.00           0.00           0.00              5              5           0.64          14.23          30.02
                            s_active#4-R:             0              0           0.00           0.00           0.00              0           5856           0.48           4.44        4714.85
                            s_active#4-R:             0              0           0.00           0.00           0.00              0          11712           0.48          56.26        9969.35
                            s_active#4-R:             0              0           0.00           0.00           0.00              0           5734           0.33           6.62        4738.40
                                   key#5:             0              0           0.00           0.00           0.00              0              3           0.15           3.97           4.48
                &journal->j_commit_timer:             0              0           0.00           0.00           0.00              0              7           0.08           8.63          16.84
                 &dev->mode_config.mutex:             0              0           0.00           0.00           0.00              0             61        2099.79       39985.03      317250.30
             &dev->mode_config.idr_mutex:             0              0           0.00           0.00           0.00              0             61           0.57           5.26          56.81
      &(&intf->waiting_msgs_lock)->rlock:             0              0           0.00           0.00           0.00              0            611           0.12           1.54         163.67
                 &(&bp->phy_lock)->rlock:             0              0           0.00           0.00           0.00              0            637           0.28          73.11        4170.95
               &(&intf->seq_lock)->rlock:             0              0           0.00           0.00           0.00              0            611           0.27           5.59         564.53
          &(&dev->tx_global_lock)->rlock:             0              0           0.00           0.00           0.00              0            122           4.46          19.22        1094.56
                           _xmit_ETHER#2:             0              0           0.00           0.00           0.00              0            976           0.13           1.09         288.00
                 &(&list->lock)->rlock#2:             0              0           0.00           0.00           0.00              0            976           0.11           4.97         274.83
                              &n->lock-W:             0              0           0.00           0.00           0.00              0            116           0.14           4.99         115.83
                              &n->lock-R:             0              0           0.00           0.00           0.00              0             18           0.20           0.72           7.47
                   &rcu_bh_state.fqslock:             0              0           0.00           0.00           0.00              0            122           7.22          28.28        1814.67
                    &(&pci->work)->timer:             0              0           0.00           0.00           0.00              0            595           1.94          53.17        4422.81
                           edac-poller-R:             0              0           0.00           0.00           0.00              0            595           1.13          42.03        3594.96
                   (&(&pci->work)->work):             0              0           0.00           0.00           0.00              0            595           0.88          33.74        3177.65
                             &vha->timer:             0              0           0.00           0.00           0.00              0          11003           1.81          36.78       60744.86
                              &bp->timer:             0              0           0.00           0.00           0.00              0            611           3.39          16.97        4252.99
                            s_active#5-R:             0              0           0.00           0.00           0.00              0            388           0.33           3.13         284.59
                            s_active#5-R:             0              0           0.00           0.00           0.00              0            204           0.37           1.45         131.86
                            s_active#5-R:             0              0           0.00           0.00           0.00              0            204           0.51           1.27         143.12
                 &(&list->lock)->rlock#4:             0              0           0.00           0.00           0.00              0             18           0.13           0.23           2.62
                          icmp6_dst_lock:             0              0           0.00           0.00           0.00              0             20           0.27           1.51          10.94
                 &(&bdi->wb_lock)->rlock:             0              0           0.00           0.00           0.00             84            266           0.12          14.42         210.33
                 &type->s_umount_key#2-R:             0              0           0.00           0.00           0.00              1              7           0.12         220.82         341.97
                                   key#5:             0              0           0.00           0.00           0.00              1              4           0.15           0.65           1.65
          &(&(&n->ha_lock)->lock)->rlock:             0              0           0.00           0.00           0.00              0              7           0.14           0.22           1.10
                    &dev->watchdog_timer:             0              0           0.00           0.00           0.00              0            122           4.97          20.87        1220.75
   &(&dev->mode_config.output_poll_work):             0              0           0.00           0.00           0.00              0             61           1.01          28.81         570.26
   (&(&dev->mode_config.output_poll_work:             0              0           0.00           0.00           0.00              0             61        2101.69       39987.82      317412.63
                    &in_dev->mr_gq_timer:             0              0           0.00           0.00           0.00              0             10           1.03           4.14          28.82
                 &(&tbl->gc_work)->timer:             0              0           0.00           0.00           0.00              0             82           3.39          19.31         634.55
                (&(&tbl->gc_work)->work):             0              0           0.00           0.00           0.00              0             82           5.70          26.95         824.64
                &net->ipv6.ip6_fib_timer:             0              0           0.00           0.00           0.00              0             20          10.93          44.18         408.07
                            fib6_gc_lock:             0              0           0.00           0.00           0.00              0             20          10.26          42.46         377.76
                 &type->s_umount_key#2-R:             0              0           0.00           0.00           0.00              2              8           0.15           1.01           3.63
                 &type->s_umount_key#2-R:             0              0           0.00           0.00           0.00              4             16           0.14           0.94           5.66
                 &type->s_umount_key#2-R:             0              0           0.00           0.00           0.00              1              4           0.12           0.68           1.82
                 &type->s_umount_key#2-R:             0              0           0.00           0.00           0.00              1              4           0.14           0.72           1.70
                 &type->s_umount_key#3-R:             0              0           0.00           0.00           0.00              1              4           0.14           0.83           1.95
                                   key#1:             0              0           0.00           0.00           0.00              0              2           0.13           3.74           3.87
                                   key#6:             0              0           0.00           0.00           0.00             16             24           0.14          22.74          82.23
                 &type->s_umount_key#3-R:             0              0           0.00           0.00           0.00              1              4           0.17           0.69           1.91
                                   key#6:             0              0           0.00           0.00           0.00           1157           1442           0.13          32.12        5192.59
                 &(&expires_work)->timer:             0              0           0.00           0.00           0.00              0             10           3.66          15.77          67.53
                (&(&expires_work)->work):             0              0           0.00           0.00           0.00              0             10         764.27        1221.32       10030.78
                                       t:             0              0           0.00           0.00           0.00              0             96           2.24          23.10         711.35
                               &pl->lock:             0              0           0.00           0.00           0.00              2              2           2.79          43.33          46.12
                        &f->secret_timer:             0              0           0.00           0.00           0.00              0              2          10.99          27.24          38.23
                                &f->lock:             0              0           0.00           0.00           0.00              0              2           9.52          23.91          33.43
                          &fc->rnd_timer:             0              0           0.00           0.00           0.00              0              1          11.78          11.78          11.78
                              &rif_timer:             0              0           0.00           0.00           0.00              0              2           1.57           3.86           5.43
                                rif_lock:             0              0           0.00           0.00           0.00              0              2           0.46           0.58           1.04
                             mmlist_lock:             0              0           0.00           0.00           0.00              6              6           0.55           0.84           3.94
                              &sp->mutex:             0              0           0.00           0.00           0.00              0              1      270745.96      270745.96      270745.96
          &fs_devices->device_list_mutex:             0              0           0.00           0.00           0.00             11             22         150.22       20489.28       46120.59
                          tty_ldisc_lock:             0              0           0.00           0.00           0.00              2              2           0.62           0.88           1.50
            &(&tree->buffer_lock)->rlock:             0              0           0.00           0.00           0.00           3321          23841           0.13         192.05        8430.87
                                   key#8:             0              0           0.00           0.00           0.00           2683           4202           0.12          10.47        1655.58
                                      -W:             0              0           0.00           0.00           0.00             44            285           0.12          10.34         257.73
                                      -R:             0              0           0.00           0.00           0.00             59            192           0.14          22.12         447.23
     &(&fs_info->free_chunk_lock)->rlock:             0              0           0.00           0.00           0.00             58             60           0.21           4.25          63.47
                                    #2-W:             0              0           0.00           0.00           0.00              0            242           0.15          13.29         106.91
                                    #2-R:             0              0           0.00           0.00           0.00             12             99           0.14           2.28          28.44
                                    #3-W:             0              0           0.00           0.00           0.00           3060          57705           0.12         185.57       43135.25
                                    #3-R:             0              0           0.00           0.00           0.00              9             64           0.14           1.05          13.65
               &(&ctl->tree_lock)->rlock:             0              0           0.00           0.00           0.00           3882          52510           0.11          57.74       11742.61
                    &found->groups_sem-W:             0              0           0.00           0.00           0.00             60             60           0.37           7.82          94.87
                    &found->groups_sem-R:             0              0           0.00           0.00           0.00           3441          24783           0.11         186.58      116761.61
                  &(&cache->lock)->rlock:             0              0           0.00           0.00           0.00           3619          47241           0.12          90.68       13958.98
                        &ei->xattr_sem-R:             0              0           0.00           0.00           0.00              8              8           0.43           0.55           3.75
                 &fs_info->cleaner_mutex:             0              0           0.00           0.00           0.00              0             20           5.73        3343.95       11960.47
   &(&fs_info->delayed_iput_lock)->rlock:             0              0           0.00           0.00           0.00             60             82           0.13           9.53          98.09
     &fs_info->transaction_kthread_mutex:             0              0           0.00           0.00           0.00             10             20       23036.62     1919015.67     4772880.04
   &(&fs_info->fs_roots_radix_lock)->rlo:             0              0           0.00           0.00           0.00             44             66           0.16          35.19         390.43
   &(&fs_info->defrag_inodes_lock)->rloc:             0              0           0.00           0.00           0.00              4             20           1.12          10.75          93.07
                             fasync_lock:             0              0           0.00           0.00           0.00              3              3           0.52           1.66           2.83
                 &type->s_umount_key#3-R:             0              0           0.00           0.00           0.00              1            482           4.15    23874592.86   125128238.84
                       &tty->ldisc_mutex:             0              0           0.00           0.00           0.00              2              2           0.61           0.82           1.43
   &(&fs_info->ordered_extent_lock)->rlo:             0              0           0.00           0.00           0.00           1890           4263           0.12          48.93       13587.48
      &fs_info->ordered_operations_mutex:             0              0           0.00           0.00           0.00             13             59           0.46          13.16         234.48
       &(&cur_trans->commit_lock)->rlock:             0              0           0.00           0.00           0.00             22             22           0.30           0.65          11.37
                                   key#8:             0              0           0.00           0.00           0.00             12             22           0.30           4.24          16.64
                                   key#9:             0              0           0.00           0.00           0.00             58             78           0.12          17.61         245.07
              &sb->s_type->i_mutex_key#1:             0              0           0.00           0.00           0.00             19            308           0.23       20024.79       35668.15
                    &fs_info->scrub_lock:             0              0           0.00           0.00           0.00             12             22           0.52           1.86          22.07
                &fs_info->tree_log_mutex:             0              0           0.00           0.00           0.00             12             22         408.33      163561.55     1192085.77
                &(&cluster->lock)->rlock:             0              0           0.00           0.00           0.00           3328          45672           0.11          63.18       16983.25
                                   key#9:             0              0           0.00           0.00           0.00              2              7           0.12           8.59          10.51
           &fs_info->extent_commit_sem-W:             0              0           0.00           0.00           0.00             13             45           0.42           2.33          46.70
           &fs_info->extent_commit_sem-R:             0              0           0.00           0.00           0.00              1              1          20.50          20.50          20.50
                           clock-AF_UNIX:             0              0           0.00           0.00           0.00              1              6           0.12           3.16           4.61
                     &caching_ctl->mutex:             0              0           0.00           0.00           0.00              1              1          29.87          29.87          29.87
                        &head_ref->mutex:             0              0           0.00           0.00           0.00              0          25966           0.11       30006.11      508708.78
                                   key#3:             0              0           0.00           0.00           0.00              1              5           0.13           0.66           1.85
         &(&journal->j_list_lock)->rlock:             0              0           0.00           0.00           0.00             14            470           0.12          15.76         233.01
                                   key#9:             0              0           0.00           0.00           0.00              0             44           0.14           2.48          17.31
                                   key#9:             0              0           0.00           0.00           0.00             22             22           0.18           5.64          11.87
                                   key#9:             0              0           0.00           0.00           0.00             11             22           0.31           0.92           9.44
                                    #6-W:             0              0           0.00           0.00           0.00             13            147           0.13          11.37         141.14
                                    #6-R:             0              0           0.00           0.00           0.00             72            330           0.13          12.62         323.65
            &sb->s_type->i_mutex_key#1/1:             0              0           0.00           0.00           0.00              1              7           0.87         117.97         144.04
                   &root->objectid_mutex:             0              0           0.00           0.00           0.00             48             60           0.20           4.35          62.12
        &(&root->accounting_lock)->rlock:             0              0           0.00           0.00           0.00           3026          20942           0.12          74.86       14845.66
                                   key#3:             0              0           0.00           0.00           0.00              6             14           0.12           4.70          17.91
                                    #1-W:             0              0           0.00           0.00           0.00              5            180           0.16          11.37         327.02
                                    #1-R:             0              0           0.00           0.00           0.00             27            192           0.14          36.27         622.89
                                   key#3:             0              0           0.00           0.00           0.00              9             19           0.12           4.48          15.91
                                   key#9:             0              0           0.00           0.00           0.00           2020           2101           0.13           7.48         960.91
                &(&cache->lock)->rlock#2:             0              0           0.00           0.00           0.00           1129           4196           0.12          14.25        2599.22
                                    #1-W:             0              0           0.00           0.00           0.00              1           8336           0.16          22.52        6564.01
                                    #1-R:             0              0           0.00           0.00           0.00            478          60194           0.14         225.74       52837.45
                  &root->fs_commit_mutex:             0              0           0.00           0.00           0.00             12             22           1.57           5.61          59.67
                      inode_sb_list_lock:             0              0           0.00           0.00           0.00             77          11068           0.12         262.79        2436.58
                              xtime_lock:             0              0           0.00           0.00           0.00              0          61137           0.00          38.47      371409.82
                                    #1-W:             0              0           0.00           0.00           0.00              2             42           0.18           2.17          48.10
                                    #1-R:             0              0           0.00           0.00           0.00             11            121           0.15           9.86         220.27
                  &nonblocking_pool.lock:             0              0           0.00           0.00           0.00             10          98644           0.12           2.85       26459.27
