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| author | Darrick J. Wong <djwong@kernel.org> | 2021-09-23 22:21:37 +0300 |
|---|---|---|
| committer | Darrick J. Wong <djwong@kernel.org> | 2021-10-19 21:45:16 +0300 |
| commit | 9fa47bdcd33b117599e9ee3f2e315cb47939ac2d (patch) | |
| tree | 4791e63154cebc89fb73fa4ec2218eb0cc3cd85e /fs/xfs/libxfs/xfs_alloc_btree.c | |
| parent | 0ed5f7356daee74244b02e100b3cc043e886e686 (diff) | |
| download | linux-9fa47bdcd33b117599e9ee3f2e315cb47939ac2d.tar.xz | |
xfs: use separate btree cursor cache for each btree type
Now that we have the infrastructure to track the max possible height of
each btree type, we can create a separate slab cache for cursors of each
type of btree. For smaller indices like the free space btrees, this
means that we can pack more cursors into a slab page, improving slab
utilization.
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Diffstat (limited to 'fs/xfs/libxfs/xfs_alloc_btree.c')
| -rw-r--r-- | fs/xfs/libxfs/xfs_alloc_btree.c | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/fs/xfs/libxfs/xfs_alloc_btree.c b/fs/xfs/libxfs/xfs_alloc_btree.c index d0a7aa4b52a8..609d349e7bd4 100644 --- a/fs/xfs/libxfs/xfs_alloc_btree.c +++ b/fs/xfs/libxfs/xfs_alloc_btree.c @@ -20,6 +20,7 @@ #include "xfs_trans.h" #include "xfs_ag.h" +static kmem_zone_t *xfs_allocbt_cur_cache; STATIC struct xfs_btree_cur * xfs_allocbt_dup_cursor( @@ -477,7 +478,8 @@ xfs_allocbt_init_common( ASSERT(btnum == XFS_BTNUM_BNO || btnum == XFS_BTNUM_CNT); - cur = xfs_btree_alloc_cursor(mp, tp, btnum, mp->m_alloc_maxlevels); + cur = xfs_btree_alloc_cursor(mp, tp, btnum, mp->m_alloc_maxlevels, + xfs_allocbt_cur_cache); cur->bc_ag.abt.active = false; if (btnum == XFS_BTNUM_CNT) { @@ -617,3 +619,22 @@ xfs_allocbt_calc_size( { return xfs_btree_calc_size(mp->m_alloc_mnr, len); } + +int __init +xfs_allocbt_init_cur_cache(void) +{ + xfs_allocbt_cur_cache = kmem_cache_create("xfs_bnobt_cur", + xfs_btree_cur_sizeof(xfs_allocbt_maxlevels_ondisk()), + 0, 0, NULL); + + if (!xfs_allocbt_cur_cache) + return -ENOMEM; + return 0; +} + +void +xfs_allocbt_destroy_cur_cache(void) +{ + kmem_cache_destroy(xfs_allocbt_cur_cache); + xfs_allocbt_cur_cache = NULL; +} |