xfs: compute the maximum height of the rmap btree when reflink enabled

Browse source

Instead of assuming that the hardcoded XFS_BTREE_MAXLEVELS value is big
enough to handle the maximally tall rmap btree when all blocks are in
use and maximally shared, let's compute the maximum height assuming the
rmapbt consumes as many blocks as possible.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Chandan Babu R <chandan.babu@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>

...

This commit is contained in:

Darrick J. Wong 2021-09-16 12:27:43 -07:00

parent 1b236ad7ba

commit 9ec691205e

5 changed files with 85 additions and 18 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

33

fs/xfs/libxfs/xfs_btree.c

View file

2

fs/xfs/libxfs/xfs_btree.h

View file

45

fs/xfs/libxfs/xfs_rmap_btree.c

View file

16

fs/xfs/libxfs/xfs_trans_resv.c

View file

7

fs/xfs/libxfs/xfs_trans_space.h

View file