summaryrefslogtreecommitdiffstats
path: root/fs/xfs/libxfs/xfs_bmap.h
diff options
context:
space:
mode:
authorBrian Foster <bfoster@redhat.com>2018-05-09 08:45:04 -0700
committerDarrick J. Wong <darrick.wong@oracle.com>2018-05-10 08:56:46 -0700
commitfcb762f5de2e534ab47b5f034fe484c2b25b4d51 (patch)
tree2f8ff2257d0939652cee00e0f801ab559dd48c41 /fs/xfs/libxfs/xfs_bmap.h
parente6631f85546c8ff8842f62c73be44ff502d4287a (diff)
downloadlinux-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.h33
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,