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| author |   Mike Snitzer <snitzer@redhat.com> | 2014-02-06 06:08:56 -0500 |
|---|---|---|
| committer | Mike Snitzer <snitzer@redhat.com> | 2014-02-17 11:00:05 -0500 |
| commit | 4d1662a30dde6e545086fe0e8fd7e474c4e0b639 (patch) | |
| tree | 0845a7da235aceef3400a6ad7c6ab49b9c4c7ed9 /drivers/md/dm-thin-metadata.h | |
| parent | dm cache: do not add migration to completed list before unhooking bio (diff) | |
| download | linux-dev-4d1662a30dde6e545086fe0e8fd7e474c4e0b639.tar.xz linux-dev-4d1662a30dde6e545086fe0e8fd7e474c4e0b639.zip | |
dm thin: avoid metadata commit if a pool's thin devices haven't changed
Commit 905e51b ("dm thin: commit outstanding data every second")
introduced a periodic commit. This commit occurs regardless of whether
any thin devices have made changes.
Fix the periodic commit to check if any of a pool's thin devices have
changed using dm_pool_changed_this_transaction().
Reported-by: Alexander Larsson <alexl@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Acked-by: Joe Thornber <ejt@redhat.com>
Cc: stable@vger.kernel.org
Diffstat (limited to 'drivers/md/dm-thin-metadata.h')
| -rw-r--r-- | drivers/md/dm-thin-metadata.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/md/dm-thin-metadata.h b/drivers/md/dm-thin-metadata.h index 9a368567632f..dd6088a17a65 100644 --- a/drivers/md/dm-thin-metadata.h +++ b/drivers/md/dm-thin-metadata.h @@ -161,6 +161,8 @@ int dm_thin_remove_block(struct dm_thin_device *td, dm_block_t block); */ bool dm_thin_changed_this_transaction(struct dm_thin_device *td); +bool dm_pool_changed_this_transaction(struct dm_pool_metadata *pmd); + bool dm_thin_aborted_changes(struct dm_thin_device *td); int dm_thin_get_highest_mapped_block(struct dm_thin_device *td, |