diff options
| author | Brian Foster <bfoster@redhat.com> | 2019-10-14 02:10:31 +0200 |
|---|---|---|
| committer | Darrick J. Wong <darrick.wong@oracle.com> | 2019-10-21 18:04:58 +0200 |
| commit | f6b428a46d60186a38105c71fa435f31240721f9 (patch) | |
| tree | b4f7da6314bb3b014431b194c9ebc3eefee9f990 /fs/xfs/libxfs/xfs_btree.h | |
| parent | xfs: ignore extent size hints for always COW inodes (diff) | |
| download | linux-f6b428a46d60186a38105c71fa435f31240721f9.tar.xz linux-f6b428a46d60186a38105c71fa435f31240721f9.zip | |
xfs: track active state of allocation btree cursors
The upcoming allocation algorithm update searches multiple
allocation btree cursors concurrently. As such, it requires an
active state to track when a particular cursor should continue
searching. While active state will be modified based on higher level
logic, we can define base functionality based on the result of
allocation btree lookups.
Define an active flag in the private area of the btree cursor.
Update it based on the result of lookups in the existing allocation
btree helpers. Finally, provide a new helper to query the current
state.
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_btree.h')
| -rw-r--r-- | fs/xfs/libxfs/xfs_btree.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/xfs/libxfs/xfs_btree.h b/fs/xfs/libxfs/xfs_btree.h index ced1e65d1483..b4e3ec1d7ff9 100644 --- a/fs/xfs/libxfs/xfs_btree.h +++ b/fs/xfs/libxfs/xfs_btree.h @@ -183,6 +183,9 @@ union xfs_btree_cur_private { unsigned long nr_ops; /* # record updates */ int shape_changes; /* # of extent splits */ } refc; + struct { + bool active; /* allocation cursor state */ + } abt; }; /* |