diff options
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; } /* |