From 8d44c98aac540cdf3cb5385bc6ef8d56930c7d70 Mon Sep 17 00:00:00 2001 From: Joe Thornber Date: Fri, 27 Jul 2012 15:08:06 +0100 Subject: [PATCH] dm persistent data: always unlock superblock in dm_bm_flush_and_unlock Unlock the superblock even if initial dm_bufio_write_dirty_buffers fails. Also, remove redundant flush calls. dm_bm_flush_and_unlock's calls to dm_bufio_write_dirty_buffers already result in dm_bufio_issue_flush being called. This avoids warnings about unflushed dirty buffers from bufio. Signed-off-by: Joe Thornber Signed-off-by: Mike Snitzer Signed-off-by: Alasdair G Kergon --- drivers/md/persistent-data/dm-block-manager.c | 16 ++++------------ 1 file changed, 4 insertions(+), 12 deletions(-) diff --git a/drivers/md/persistent-data/dm-block-manager.c b/drivers/md/persistent-data/dm-block-manager.c index 0317ecdc6e53..8ec46dd511f9 100644 --- a/drivers/md/persistent-data/dm-block-manager.c +++ b/drivers/md/persistent-data/dm-block-manager.c @@ -587,22 +587,14 @@ int dm_bm_flush_and_unlock(struct dm_block_manager *bm, int r; r = dm_bufio_write_dirty_buffers(to_bufio(bm)); - if (unlikely(r)) - return r; - r = dm_bufio_issue_flush(to_bufio(bm)); - if (unlikely(r)) + if (unlikely(r)) { + dm_bm_unlock(superblock); return r; + } dm_bm_unlock(superblock); - r = dm_bufio_write_dirty_buffers(to_bufio(bm)); - if (unlikely(r)) - return r; - r = dm_bufio_issue_flush(to_bufio(bm)); - if (unlikely(r)) - return r; - - return 0; + return dm_bufio_write_dirty_buffers(to_bufio(bm)); } u32 dm_bm_checksum(const void *data, size_t len, u32 init_xor) -- GitLab