diff options
| author | Joe Thornber <ejt@redhat.com> | 2014-10-06 18:24:55 +0400 |
|---|---|---|
| committer | Mike Snitzer <snitzer@redhat.com> | 2014-11-10 23:25:26 +0300 |
| commit | e5cfc69a513cdc9d9e753c5ce07f0cc6b496bfd3 (patch) | |
| tree | 720c80d4d1cda8be53296d215bcfed7c404cf45b /drivers/md/dm-thin-metadata.h | |
| parent | a195db2d29a47c2c3a61386009bd400df18c86cf (diff) | |
| download | linux-e5cfc69a513cdc9d9e753c5ce07f0cc6b496bfd3.tar.xz | |
dm thin metadata: change dm_thin_find_block to allow blocking, but not issuing, IO
This change is a prerequisite for allowing metadata to be prefetched.
Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Diffstat (limited to 'drivers/md/dm-thin-metadata.h')
| -rw-r--r-- | drivers/md/dm-thin-metadata.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/md/dm-thin-metadata.h b/drivers/md/dm-thin-metadata.h index e3c857db195a..efedd5a4cd8f 100644 --- a/drivers/md/dm-thin-metadata.h +++ b/drivers/md/dm-thin-metadata.h @@ -139,12 +139,12 @@ struct dm_thin_lookup_result { /* * Returns: - * -EWOULDBLOCK iff @can_block is set and would block. + * -EWOULDBLOCK iff @can_issue_io is set and would issue IO * -ENODATA iff that mapping is not present. * 0 success */ int dm_thin_find_block(struct dm_thin_device *td, dm_block_t block, - int can_block, struct dm_thin_lookup_result *result); + int can_issue_io, struct dm_thin_lookup_result *result); /* * Obtain an unused block. |