diff options
| author | Joe Thornber <ejt@redhat.com> | 2014-09-17 10:17:39 +0100 |
|---|---|---|
| committer | Mike Snitzer <snitzer@redhat.com> | 2014-11-10 15:25:30 -0500 |
| commit | 5f274d886598c9fd26d2499bf3f68306f170e9db (patch) | |
| tree | af0ded19382c65e832ea51e2b01efb40581c81dd /drivers/md/dm-thin.c | |
| parent | f1afb36a6102b52949c2c6d8eb250eddcce3fc5f (diff) | |
| download | op-kernel-dev-5f274d886598c9fd26d2499bf3f68306f170e9db.zip op-kernel-dev-5f274d886598c9fd26d2499bf3f68306f170e9db.tar.gz | |
dm bio prison: introduce support for locking ranges of blocks
Ranges will be placed in the same cell if they overlap.
Range locking is a prerequisite for more efficient multi-block discard
support in both the cache and thin-provisioning targets.
Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Diffstat (limited to 'drivers/md/dm-thin.c')
| -rw-r--r-- | drivers/md/dm-thin.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c index fb05f6a..8c5504c 100644 --- a/drivers/md/dm-thin.c +++ b/drivers/md/dm-thin.c @@ -115,7 +115,8 @@ static void build_data_key(struct dm_thin_device *td, { key->virtual = 0; key->dev = dm_thin_dev_id(td); - key->block = b; + key->block_begin = b; + key->block_end = b + 1ULL; } static void build_virtual_key(struct dm_thin_device *td, dm_block_t b, @@ -123,7 +124,8 @@ static void build_virtual_key(struct dm_thin_device *td, dm_block_t b, { key->virtual = 1; key->dev = dm_thin_dev_id(td); - key->block = b; + key->block_begin = b; + key->block_end = b + 1ULL; } /*----------------------------------------------------------------*/ |
