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xfs: add bmapi nodiscard flag

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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>
This commit is contained in:
Brian Foster
2018-05-09 08:45:04 -07:00
committed by Darrick J. Wong
parent e6631f8554
commit fcb762f5de
7 changed files with 87 additions and 18 deletions
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3
fs/xfs/xfs_trans.h
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@@ -235,7 +235,8 @@ struct xfs_efd_log_item *xfs_trans_get_efd(struct xfs_trans *,
uint);
int xfs_trans_free_extent(struct xfs_trans *,
struct xfs_efd_log_item *, xfs_fsblock_t,
xfs_extlen_t, struct xfs_owner_info *);
xfs_extlen_t, struct xfs_owner_info *,
bool);
int xfs_trans_commit(struct xfs_trans *);
int xfs_trans_roll(struct xfs_trans **);
int xfs_trans_roll_inode(struct xfs_trans **, struct xfs_inode *);