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| author | Chandan Babu R <chandan.babu@oracle.com> | 2021-11-16 12:54:37 +0300 |
|---|---|---|
| committer | Chandan Babu R <chandan.babu@oracle.com> | 2022-04-11 07:11:19 +0300 |
| commit | df9ad5cc7a524048ea7ff983d6feeb6d8c47a761 (patch) | |
| tree | 770a196d7b4b5c9607d81e7f8103676e57f6efc6 /fs/xfs/libxfs/xfs_bmap_btree.c | |
| parent | 0c35e7ba18508e9344a1f27b412924bc8b34eba8 (diff) | |
| download | linux-df9ad5cc7a524048ea7ff983d6feeb6d8c47a761.tar.xz | |
xfs: Introduce macros to represent new maximum extent counts for data/attr forks
This commit defines new macros to represent maximum extent counts allowed by
filesystems which have support for large per-inode extent counters.
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Chandan Babu R <chandan.babu@oracle.com>
Diffstat (limited to 'fs/xfs/libxfs/xfs_bmap_btree.c')
| -rw-r--r-- | fs/xfs/libxfs/xfs_bmap_btree.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/fs/xfs/libxfs/xfs_bmap_btree.c b/fs/xfs/libxfs/xfs_bmap_btree.c index 453309fc85f2..2b77d45c215f 100644 --- a/fs/xfs/libxfs/xfs_bmap_btree.c +++ b/fs/xfs/libxfs/xfs_bmap_btree.c @@ -597,7 +597,11 @@ xfs_bmbt_maxrecs( return xfs_bmbt_block_maxrecs(blocklen, leaf); } -/* Compute the max possible height for block mapping btrees. */ +/* + * Calculate the maximum possible height of the btree that the on-disk format + * supports. This is used for sizing structures large enough to support every + * possible configuration of a filesystem that might get mounted. + */ unsigned int xfs_bmbt_maxlevels_ondisk(void) { @@ -611,7 +615,8 @@ xfs_bmbt_maxlevels_ondisk(void) minrecs[1] = xfs_bmbt_block_maxrecs(blocklen, false) / 2; /* One extra level for the inode root. */ - return xfs_btree_compute_maxlevels(minrecs, MAXEXTNUM) + 1; + return xfs_btree_compute_maxlevels(minrecs, + XFS_MAX_EXTCNT_DATA_FORK_LARGE) + 1; } /* |