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_bmap.h | |
| parent | e6631f85546c8ff8842f62c73be44ff502d4287a (diff) | |
| download | linux-fcb762f5de2e534ab47b5f034fe484c2b25b4d51.tar.bz2 | |
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_bmap.h')
| -rw-r--r-- | fs/xfs/libxfs/xfs_bmap.h | 33 |
1 files changed, 30 insertions, 3 deletions
diff --git a/fs/xfs/libxfs/xfs_bmap.h b/fs/xfs/libxfs/xfs_bmap.h index 2b766b37096d..8d8946bfdd8c 100644 --- a/fs/xfs/libxfs/xfs_bmap.h +++ b/fs/xfs/libxfs/xfs_bmap.h @@ -68,6 +68,7 @@ struct xfs_extent_free_item xfs_extlen_t xefi_blockcount;/* number of blocks in extent */ struct list_head xefi_list; struct xfs_owner_info xefi_oinfo; /* extent owner */ + bool xefi_skip_discard; }; #define XFS_BMAP_MAX_NMAP 4 @@ -116,6 +117,9 @@ struct xfs_extent_free_item /* Only convert unwritten extents, don't allocate new blocks */ #define XFS_BMAPI_CONVERT_ONLY 0x800 +/* Skip online discard of freed extents */ +#define XFS_BMAPI_NODISCARD 0x1000 + #define XFS_BMAPI_FLAGS \ { XFS_BMAPI_ENTIRE, "ENTIRE" }, \ { XFS_BMAPI_METADATA, "METADATA" }, \ @@ -128,7 +132,8 @@ struct xfs_extent_free_item { XFS_BMAPI_REMAP, "REMAP" }, \ { XFS_BMAPI_COWFORK, "COWFORK" }, \ { XFS_BMAPI_DELALLOC, "DELALLOC" }, \ - { XFS_BMAPI_CONVERT_ONLY, "CONVERT_ONLY" } + { XFS_BMAPI_CONVERT_ONLY, "CONVERT_ONLY" }, \ + { XFS_BMAPI_NODISCARD, "NODISCARD" } static inline int xfs_bmapi_aflag(int w) @@ -192,9 +197,9 @@ void xfs_trim_extent(struct xfs_bmbt_irec *irec, xfs_fileoff_t bno, void xfs_trim_extent_eof(struct xfs_bmbt_irec *, struct xfs_inode *); int xfs_bmap_add_attrfork(struct xfs_inode *ip, int size, int rsvd); void xfs_bmap_local_to_extents_empty(struct xfs_inode *ip, int whichfork); -void xfs_bmap_add_free(struct xfs_mount *mp, struct xfs_defer_ops *dfops, +void __xfs_bmap_add_free(struct xfs_mount *mp, struct xfs_defer_ops *dfops, xfs_fsblock_t bno, xfs_filblks_t len, - struct xfs_owner_info *oinfo); + struct xfs_owner_info *oinfo, bool skip_discard); void xfs_bmap_compute_maxlevels(struct xfs_mount *mp, int whichfork); int xfs_bmap_first_unused(struct xfs_trans *tp, struct xfs_inode *ip, xfs_extlen_t len, xfs_fileoff_t *unused, int whichfork); @@ -240,6 +245,28 @@ int xfs_bmapi_reserve_delalloc(struct xfs_inode *ip, int whichfork, struct xfs_bmbt_irec *got, struct xfs_iext_cursor *cur, int eof); +static inline void +xfs_bmap_add_free( + struct xfs_mount *mp, + struct xfs_defer_ops *dfops, + xfs_fsblock_t bno, + xfs_filblks_t len, + struct xfs_owner_info *oinfo) +{ + __xfs_bmap_add_free(mp, dfops, bno, len, oinfo, false); +} + +static inline void +xfs_bmap_add_free_nodiscard( + struct xfs_mount *mp, + struct xfs_defer_ops *dfops, + xfs_fsblock_t bno, + xfs_filblks_t len, + struct xfs_owner_info *oinfo) +{ + __xfs_bmap_add_free(mp, dfops, bno, len, oinfo, true); +} + enum xfs_bmap_intent_type { XFS_BMAP_MAP = 1, XFS_BMAP_UNMAP, |