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-rw-r--r--fs/xfs/libxfs/xfs_alloc_btree.c2
-rw-r--r--fs/xfs/libxfs/xfs_bmap_btree.c3
-rw-r--r--fs/xfs/libxfs/xfs_btree.h13
-rw-r--r--fs/xfs/libxfs/xfs_ialloc_btree.c3
-rw-r--r--fs/xfs/libxfs/xfs_refcount_btree.c3
-rw-r--r--fs/xfs/libxfs/xfs_rmap_btree.c3
-rw-r--r--fs/xfs/xfs_super.c4
7 files changed, 22 insertions, 9 deletions
diff --git a/fs/xfs/libxfs/xfs_alloc_btree.c b/fs/xfs/libxfs/xfs_alloc_btree.c
index c644b11132f6..f14bad21503f 100644
--- a/fs/xfs/libxfs/xfs_alloc_btree.c
+++ b/fs/xfs/libxfs/xfs_alloc_btree.c
@@ -477,7 +477,7 @@ xfs_allocbt_init_common(
ASSERT(btnum == XFS_BTNUM_BNO || btnum == XFS_BTNUM_CNT);
- cur = xfs_btree_alloc_cursor(mp, tp, btnum);
+ cur = xfs_btree_alloc_cursor(mp, tp, btnum, mp->m_ag_maxlevels);
cur->bc_ag.abt.active = false;
if (btnum == XFS_BTNUM_CNT) {
diff --git a/fs/xfs/libxfs/xfs_bmap_btree.c b/fs/xfs/libxfs/xfs_bmap_btree.c
index a06987e36db5..b90122de0df0 100644
--- a/fs/xfs/libxfs/xfs_bmap_btree.c
+++ b/fs/xfs/libxfs/xfs_bmap_btree.c
@@ -552,7 +552,8 @@ xfs_bmbt_init_cursor(
struct xfs_btree_cur *cur;
ASSERT(whichfork != XFS_COW_FORK);
- cur = xfs_btree_alloc_cursor(mp, tp, XFS_BTNUM_BMAP);
+ cur = xfs_btree_alloc_cursor(mp, tp, XFS_BTNUM_BMAP,
+ mp->m_bm_maxlevels[whichfork]);
cur->bc_nlevels = be16_to_cpu(ifp->if_broot->bb_level) + 1;
cur->bc_statoff = XFS_STATS_CALC_INDEX(xs_bmbt_2);
diff --git a/fs/xfs/libxfs/xfs_btree.h b/fs/xfs/libxfs/xfs_btree.h
index ed0b7d5ab3a3..b46cd98309fa 100644
--- a/fs/xfs/libxfs/xfs_btree.h
+++ b/fs/xfs/libxfs/xfs_btree.h
@@ -94,6 +94,12 @@ uint32_t xfs_btree_magic(int crc, xfs_btnum_t btnum);
#define XFS_BTREE_MAXLEVELS 9 /* max of all btrees */
+/*
+ * The btree cursor zone hands out cursors that can handle up to this many
+ * levels. This is the known maximum for all btree types.
+ */
+#define XFS_BTREE_CUR_CACHE_MAXLEVELS (9)
+
struct xfs_btree_ops {
/* size of the key and record structures */
size_t key_len;
@@ -583,15 +589,18 @@ static inline struct xfs_btree_cur *
xfs_btree_alloc_cursor(
struct xfs_mount *mp,
struct xfs_trans *tp,
- xfs_btnum_t btnum)
+ xfs_btnum_t btnum,
+ uint8_t maxlevels)
{
struct xfs_btree_cur *cur;
+ ASSERT(maxlevels <= XFS_BTREE_CUR_CACHE_MAXLEVELS);
+
cur = kmem_cache_zalloc(xfs_btree_cur_zone, GFP_NOFS | __GFP_NOFAIL);
cur->bc_tp = tp;
cur->bc_mp = mp;
cur->bc_btnum = btnum;
- cur->bc_maxlevels = XFS_BTREE_MAXLEVELS;
+ cur->bc_maxlevels = maxlevels;
return cur;
}
diff --git a/fs/xfs/libxfs/xfs_ialloc_btree.c b/fs/xfs/libxfs/xfs_ialloc_btree.c
index c8fea6a464d5..3a5a24648b87 100644
--- a/fs/xfs/libxfs/xfs_ialloc_btree.c
+++ b/fs/xfs/libxfs/xfs_ialloc_btree.c
@@ -432,7 +432,8 @@ xfs_inobt_init_common(
{
struct xfs_btree_cur *cur;
- cur = xfs_btree_alloc_cursor(mp, tp, btnum);
+ cur = xfs_btree_alloc_cursor(mp, tp, btnum,
+ M_IGEO(mp)->inobt_maxlevels);
if (btnum == XFS_BTNUM_INO) {
cur->bc_statoff = XFS_STATS_CALC_INDEX(xs_ibt_2);
cur->bc_ops = &xfs_inobt_ops;
diff --git a/fs/xfs/libxfs/xfs_refcount_btree.c b/fs/xfs/libxfs/xfs_refcount_btree.c
index 48c45e31d897..995b0d86ddc0 100644
--- a/fs/xfs/libxfs/xfs_refcount_btree.c
+++ b/fs/xfs/libxfs/xfs_refcount_btree.c
@@ -322,7 +322,8 @@ xfs_refcountbt_init_common(
ASSERT(pag->pag_agno < mp->m_sb.sb_agcount);
- cur = xfs_btree_alloc_cursor(mp, tp, XFS_BTNUM_REFC);
+ cur = xfs_btree_alloc_cursor(mp, tp, XFS_BTNUM_REFC,
+ mp->m_refc_maxlevels);
cur->bc_statoff = XFS_STATS_CALC_INDEX(xs_refcbt_2);
cur->bc_flags |= XFS_BTREE_CRC_BLOCKS;
diff --git a/fs/xfs/libxfs/xfs_rmap_btree.c b/fs/xfs/libxfs/xfs_rmap_btree.c
index f3c4d0965cc9..1b48b7b3ee30 100644
--- a/fs/xfs/libxfs/xfs_rmap_btree.c
+++ b/fs/xfs/libxfs/xfs_rmap_btree.c
@@ -452,7 +452,8 @@ xfs_rmapbt_init_common(
struct xfs_btree_cur *cur;
/* Overlapping btree; 2 keys per pointer. */
- cur = xfs_btree_alloc_cursor(mp, tp, XFS_BTNUM_RMAP);
+ cur = xfs_btree_alloc_cursor(mp, tp, XFS_BTNUM_RMAP,
+ mp->m_rmap_maxlevels);
cur->bc_flags = XFS_BTREE_CRC_BLOCKS | XFS_BTREE_OVERLAPPING;
cur->bc_statoff = XFS_STATS_CALC_INDEX(xs_rmap_2);
cur->bc_ops = &xfs_rmapbt_ops;
diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
index 30bae0657343..2a535a8bc3c0 100644
--- a/fs/xfs/xfs_super.c
+++ b/fs/xfs/xfs_super.c
@@ -1966,8 +1966,8 @@ xfs_init_zones(void)
goto out_destroy_log_ticket_zone;
xfs_btree_cur_zone = kmem_cache_create("xfs_btree_cur",
- xfs_btree_cur_sizeof(XFS_BTREE_MAXLEVELS),
- 0, 0, NULL);
+ xfs_btree_cur_sizeof(XFS_BTREE_CUR_CACHE_MAXLEVELS),
+ 0, 0, NULL);
if (!xfs_btree_cur_zone)
goto out_destroy_bmap_free_item_zone;