diff options
| author | Brian Foster <bfoster@redhat.com> | 2018-05-09 08:45:04 -0700 |
|---|---|---|
| committer | Darrick J. Wong <darrick.wong@oracle.com> | 2018-05-10 08:56:46 -0700 |
| commit | fcb762f5de2e534ab47b5f034fe484c2b25b4d51 (patch) | |
| tree | 2f8ff2257d0939652cee00e0f801ab559dd48c41 /fs/xfs/libxfs/xfs_alloc.c | |
| parent | e6631f85546c8ff8842f62c73be44ff502d4287a (diff) | |
| download | lwn-fcb762f5de2e534ab47b5f034fe484c2b25b4d51.tar.gz lwn-fcb762f5de2e534ab47b5f034fe484c2b25b4d51.zip | |
xfs: add bmapi nodiscard flag
Freed extents are unconditionally discarded when online discard is
enabled. Define XFS_BMAPI_NODISCARD to allow callers to bypass
discards when unnecessary. For example, this will be useful for
eofblocks trimming.
This patch does not change behavior.
Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Diffstat (limited to 'fs/xfs/libxfs/xfs_alloc.c')
| -rw-r--r-- | fs/xfs/libxfs/xfs_alloc.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/fs/xfs/libxfs/xfs_alloc.c b/fs/xfs/libxfs/xfs_alloc.c index 350ad203b082..5410635893df 100644 --- a/fs/xfs/libxfs/xfs_alloc.c +++ b/fs/xfs/libxfs/xfs_alloc.c @@ -3009,18 +3009,20 @@ out: * after fixing up the freelist. */ int /* error */ -xfs_free_extent( +__xfs_free_extent( struct xfs_trans *tp, /* transaction pointer */ xfs_fsblock_t bno, /* starting block number of extent */ xfs_extlen_t len, /* length of extent */ struct xfs_owner_info *oinfo, /* extent owner */ - enum xfs_ag_resv_type type) /* block reservation type */ + enum xfs_ag_resv_type type, /* block reservation type */ + bool skip_discard) { struct xfs_mount *mp = tp->t_mountp; struct xfs_buf *agbp; xfs_agnumber_t agno = XFS_FSB_TO_AGNO(mp, bno); xfs_agblock_t agbno = XFS_FSB_TO_AGBNO(mp, bno); int error; + unsigned int busy_flags = 0; ASSERT(len != 0); ASSERT(type != XFS_AG_RESV_AGFL); @@ -3044,7 +3046,9 @@ xfs_free_extent( if (error) goto err; - xfs_extent_busy_insert(tp, agno, agbno, len, 0); + if (skip_discard) + busy_flags |= XFS_EXTENT_BUSY_SKIP_DISCARD; + xfs_extent_busy_insert(tp, agno, agbno, len, busy_flags); return 0; err: |