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path: root/fs/xfs/libxfs/xfs_alloc_btree.c
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Diffstat (limited to 'fs/xfs/libxfs/xfs_alloc_btree.c')
-rw-r--r--fs/xfs/libxfs/xfs_alloc_btree.c23
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;
+}