From: Aneesh Kumar K.V ext4: Don't add the inode to journal handle until after the block is allocated Make sure we don't add the inode to the journal handle until after the block allocation, so that a journal commit will not include the inode in case of block allocation failure. Signed-off-by: Aneesh Kumar K.V Signed-off-by: Mingming Cao Signed-off-by: "Theodore Ts'o" --- fs/ext4/balloc.c | 2 +- fs/ext4/inode.c | 36 +++++++++++++++--------------------- 2 files changed, 16 insertions(+), 22 deletions(-) Index: linux-2.6.27-rc3/fs/ext4/balloc.c =================================================================== --- linux-2.6.27-rc3.orig/fs/ext4/balloc.c 2008-08-28 14:40:43.000000000 -0700 +++ linux-2.6.27-rc3/fs/ext4/balloc.c 2008-08-28 14:52:44.000000000 -0700 @@ -2057,7 +2057,7 @@ /* * Account for the allocated meta blocks */ - if (!(*errp)) { + if (!(*errp) && EXT4_I(inode)->i_delalloc_reserved_flag) { spin_lock(&EXT4_I(inode)->i_block_reservation_lock); EXT4_I(inode)->i_allocated_meta_blocks += *count; spin_unlock(&EXT4_I(inode)->i_block_reservation_lock); Index: linux-2.6.27-rc3/fs/ext4/inode.c =================================================================== --- linux-2.6.27-rc3.orig/fs/ext4/inode.c 2008-08-28 14:40:17.000000000 -0700 +++ linux-2.6.27-rc3/fs/ext4/inode.c 2008-08-28 14:52:44.000000000 -0700 @@ -2170,18 +2170,24 @@ handle_t *handle = NULL; handle = ext4_journal_current_handle(); - if (!handle) { - ret = ext4_get_blocks_wrap(handle, inode, iblock, max_blocks, - bh_result, 0, 0, 0); - BUG_ON(!ret); - } else { - ret = ext4_get_blocks_wrap(handle, inode, iblock, max_blocks, - bh_result, create, 0, EXT4_DELALLOC_RSVED); - } - + BUG_ON(!handle); + ret = ext4_get_blocks_wrap(handle, inode, iblock, max_blocks, + bh_result, create, 0, EXT4_DELALLOC_RSVED); if (ret > 0) { + bh_result->b_size = (ret << inode->i_blkbits); + if (ext4_should_order_data(inode)) { + int retval; + retval = ext4_jbd2_file_inode(handle, inode); + if (retval) + /* + * Failed to add inode for ordered + * mode. Don't update file size + */ + return retval; + } + /* * Update on-disk size along with block allocation * we don't use 'extend_disksize' as size may change @@ -2407,18 +2413,6 @@ dump_stack(); goto out_writepages; } - if (ext4_should_order_data(inode)) { - /* - * With ordered mode we need to add - * the inode to the journal handl - * when we do block allocation. - */ - ret = ext4_jbd2_file_inode(handle, inode); - if (ret) { - ext4_journal_stop(handle); - goto out_writepages; - } - } to_write -= wbc->nr_to_write; ret = mpage_da_writepages(mapping, wbc,