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| author | Darrick J. Wong <djwong@kernel.org> | 2021-09-16 22:24:04 +0300 |
|---|---|---|
| committer | Darrick J. Wong <djwong@kernel.org> | 2021-10-19 21:45:14 +0300 |
| commit | 6ca444cfd663545e9e1c19ad2695836ffafad0a6 (patch) | |
| tree | d1733bff03cc4558998ddbf161ce0958b220b46e /fs/xfs/libxfs/xfs_alloc.c | |
| parent | eae5db476f9db78b31d6665924539dd8e2d2f431 (diff) | |
| download | linux-6ca444cfd663545e9e1c19ad2695836ffafad0a6.tar.xz | |
xfs: prepare xfs_btree_cur for dynamic cursor heights
Split out the btree level information into a separate struct and put it
at the end of the cursor structure as a VLA. Files with huge data forks
(and in the future, the realtime rmap btree) will require the ability to
support many more levels than a per-AG btree cursor, which means that
we're going to create per-btree type cursor caches to conserve memory
for the more common case.
Note that a subsequent patch actually introduces dynamic cursor heights.
This one merely rearranges the structure to prepare for that.
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Chandan Babu R <chandan.babu@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Diffstat (limited to 'fs/xfs/libxfs/xfs_alloc.c')
| -rw-r--r-- | fs/xfs/libxfs/xfs_alloc.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/fs/xfs/libxfs/xfs_alloc.c b/fs/xfs/libxfs/xfs_alloc.c index 35fb1dd3be95..55c5adc9b54e 100644 --- a/fs/xfs/libxfs/xfs_alloc.c +++ b/fs/xfs/libxfs/xfs_alloc.c @@ -488,8 +488,8 @@ xfs_alloc_fixup_trees( struct xfs_btree_block *bnoblock; struct xfs_btree_block *cntblock; - bnoblock = XFS_BUF_TO_BLOCK(bno_cur->bc_bufs[0]); - cntblock = XFS_BUF_TO_BLOCK(cnt_cur->bc_bufs[0]); + bnoblock = XFS_BUF_TO_BLOCK(bno_cur->bc_levels[0].bp); + cntblock = XFS_BUF_TO_BLOCK(cnt_cur->bc_levels[0].bp); if (XFS_IS_CORRUPT(mp, bnoblock->bb_numrecs != @@ -1512,7 +1512,7 @@ xfs_alloc_ag_vextent_lastblock( * than minlen. */ if (*len || args->alignment > 1) { - acur->cnt->bc_ptrs[0] = 1; + acur->cnt->bc_levels[0].ptr = 1; do { error = xfs_alloc_get_rec(acur->cnt, bno, len, &i); if (error) |