From: NeilBrown When we do a user-requested check/repair, we lose count of the outstanding requests... Also make sure that when anything is written to md/sync_action, the RECOVERY_NEEDED flag is set and the thread is woken up so any changes take effect. Signed-off-by: Neil Brown Signed-off-by: Andrew Morton --- drivers/md/md.c | 11 ++++------- drivers/md/raid1.c | 10 ++++++---- 2 files changed, 10 insertions(+), 11 deletions(-) diff -puN drivers/md/md.c~md-fix-rdev-pending-counts-in-raid1 drivers/md/md.c --- devel/drivers/md/md.c~md-fix-rdev-pending-counts-in-raid1 2005-12-12 02:04:18.000000000 -0800 +++ devel-akpm/drivers/md/md.c 2005-12-12 02:04:18.000000000 -0800 @@ -1826,13 +1826,10 @@ action_store(mddev_t *mddev, const char mddev->sync_thread = NULL; mddev->recovery = 0; } - return len; - } - - if (test_bit(MD_RECOVERY_RUNNING, &mddev->recovery) || - test_bit(MD_RECOVERY_NEEDED, &mddev->recovery)) + } else if (test_bit(MD_RECOVERY_RUNNING, &mddev->recovery) || + test_bit(MD_RECOVERY_NEEDED, &mddev->recovery)) return -EBUSY; - if (cmd_match(page, "resync") || cmd_match(page, "recover")) + else if (cmd_match(page, "resync") || cmd_match(page, "recover")) set_bit(MD_RECOVERY_NEEDED, &mddev->recovery); else { if (cmd_match(page, "check")) @@ -1841,8 +1838,8 @@ action_store(mddev_t *mddev, const char return -EINVAL; set_bit(MD_RECOVERY_REQUESTED, &mddev->recovery); set_bit(MD_RECOVERY_SYNC, &mddev->recovery); - set_bit(MD_RECOVERY_NEEDED, &mddev->recovery); } + set_bit(MD_RECOVERY_NEEDED, &mddev->recovery); md_wakeup_thread(mddev->thread); return len; } diff -puN drivers/md/raid1.c~md-fix-rdev-pending-counts-in-raid1 drivers/md/raid1.c --- devel/drivers/md/raid1.c~md-fix-rdev-pending-counts-in-raid1 2005-12-12 02:04:18.000000000 -0800 +++ devel-akpm/drivers/md/raid1.c 2005-12-12 02:04:18.000000000 -0800 @@ -527,7 +527,7 @@ static int read_balance(conf_t *conf, r1 /* cannot risk returning a device that failed * before we inc'ed nr_pending */ - atomic_dec(&rdev->nr_pending); + rdev_dec_pending(rdev, conf->mddev); goto retry; } conf->next_seq_sect = this_sector + sectors; @@ -830,7 +830,7 @@ static int make_request(request_queue_t !test_bit(Faulty, &rdev->flags)) { atomic_inc(&rdev->nr_pending); if (test_bit(Faulty, &rdev->flags)) { - atomic_dec(&rdev->nr_pending); + rdev_dec_pending(rdev, mddev); r1_bio->bios[i] = NULL; } else r1_bio->bios[i] = bio; @@ -1176,6 +1176,7 @@ static void sync_request_write(mddev_t * if (r1_bio->bios[primary]->bi_end_io == end_sync_read && test_bit(BIO_UPTODATE, &r1_bio->bios[primary]->bi_flags)) { r1_bio->bios[primary]->bi_end_io = NULL; + rdev_dec_pending(conf->mirrors[primary].rdev, mddev); break; } r1_bio->read_disk = primary; @@ -1193,9 +1194,10 @@ static void sync_request_write(mddev_t * break; if (j >= 0) mddev->resync_mismatches += r1_bio->sectors; - if (j < 0 || test_bit(MD_RECOVERY_CHECK, &mddev->recovery)) + if (j < 0 || test_bit(MD_RECOVERY_CHECK, &mddev->recovery)) { sbio->bi_end_io = NULL; - else { + rdev_dec_pending(conf->mirrors[i].rdev, mddev); + } else { /* fixup the bio for reuse */ sbio->bi_vcnt = vcnt; sbio->bi_size = r1_bio->sectors << 9; _