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| author | Mikulas Patocka <mpatocka@redhat.com> | 2016-08-30 16:11:53 -0400 |
|---|---|---|
| committer | Mike Snitzer <snitzer@redhat.com> | 2016-08-30 16:16:49 -0400 |
| commit | a5d60783df61fbb67b7596b8a0f6b4b2e05251d5 (patch) | |
| tree | f7b3d3e7501084c2228997f074b3978a81918bab /drivers/md/raid1.c | |
| parent | 3eab887a55424fc2c27553b7bfe32330df83f7b8 (diff) | |
| download | linux-a5d60783df61fbb67b7596b8a0f6b4b2e05251d5.tar.gz | |
dm log writes: move IO accounting earlier to fix error path
Move log_one_block()'s atomic_inc(&lc->io_blocks) before bio_alloc() to
fix a bug that the target hangs if bio_alloc() fails. The error path
does put_io_block(lc), so atomic_inc(&lc->io_blocks) must occur before
invoking the error path to avoid underflow of lc->io_blocks.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Reviewed-by: Josef Bacik <jbacik@fb,com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Cc: stable@vger.kernel.org
Diffstat (limited to 'drivers/md/raid1.c')
0 files changed, 0 insertions, 0 deletions