summaryrefslogtreecommitdiffstats
path: root/fs/xfs/libxfs/xfs_alloc.c
diff options
context:
space:
mode:
Diffstat (limited to 'fs/xfs/libxfs/xfs_alloc.c')
-rw-r--r--fs/xfs/libxfs/xfs_alloc.c120
1 files changed, 97 insertions, 23 deletions
diff --git a/fs/xfs/libxfs/xfs_alloc.c b/fs/xfs/libxfs/xfs_alloc.c
index 95157f5a5a6c..353e53b892e6 100644
--- a/fs/xfs/libxfs/xfs_alloc.c
+++ b/fs/xfs/libxfs/xfs_alloc.c
@@ -27,7 +27,7 @@
#include "xfs_ag_resv.h"
#include "xfs_bmap.h"
-extern kmem_zone_t *xfs_bmap_free_item_zone;
+struct kmem_cache *xfs_extfree_item_cache;
struct workqueue_struct *xfs_alloc_wq;
@@ -426,8 +426,8 @@ xfs_alloc_fix_len(
*/
STATIC int /* error code */
xfs_alloc_fixup_trees(
- xfs_btree_cur_t *cnt_cur, /* cursor for by-size btree */
- xfs_btree_cur_t *bno_cur, /* cursor for by-block btree */
+ struct xfs_btree_cur *cnt_cur, /* cursor for by-size btree */
+ struct xfs_btree_cur *bno_cur, /* cursor for by-block btree */
xfs_agblock_t fbno, /* starting block of free extent */
xfs_extlen_t flen, /* length of free extent */
xfs_agblock_t rbno, /* starting block of returned extent */
@@ -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 !=
@@ -1200,8 +1200,8 @@ xfs_alloc_ag_vextent_exact(
xfs_alloc_arg_t *args) /* allocation argument structure */
{
struct xfs_agf __maybe_unused *agf = args->agbp->b_addr;
- xfs_btree_cur_t *bno_cur;/* by block-number btree cursor */
- xfs_btree_cur_t *cnt_cur;/* by count btree cursor */
+ struct xfs_btree_cur *bno_cur;/* by block-number btree cursor */
+ struct xfs_btree_cur *cnt_cur;/* by count btree cursor */
int error;
xfs_agblock_t fbno; /* start block of found extent */
xfs_extlen_t flen; /* length of found extent */
@@ -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)
@@ -1658,8 +1658,8 @@ xfs_alloc_ag_vextent_size(
xfs_alloc_arg_t *args) /* allocation argument structure */
{
struct xfs_agf *agf = args->agbp->b_addr;
- xfs_btree_cur_t *bno_cur; /* cursor for bno btree */
- xfs_btree_cur_t *cnt_cur; /* cursor for cnt btree */
+ struct xfs_btree_cur *bno_cur; /* cursor for bno btree */
+ struct xfs_btree_cur *cnt_cur; /* cursor for cnt btree */
int error; /* error result */
xfs_agblock_t fbno; /* start of found freespace */
xfs_extlen_t flen; /* length of found freespace */
@@ -2190,14 +2190,15 @@ xfs_free_ag_extent(
*/
/*
- * Compute and fill in value of m_ag_maxlevels.
+ * Compute and fill in value of m_alloc_maxlevels.
*/
void
xfs_alloc_compute_maxlevels(
xfs_mount_t *mp) /* file system mount structure */
{
- mp->m_ag_maxlevels = xfs_btree_compute_maxlevels(mp->m_alloc_mnr,
+ mp->m_alloc_maxlevels = xfs_btree_compute_maxlevels(mp->m_alloc_mnr,
(mp->m_sb.sb_agblocks + 1) / 2);
+ ASSERT(mp->m_alloc_maxlevels <= xfs_allocbt_maxlevels_ondisk());
}
/*
@@ -2255,14 +2256,14 @@ xfs_alloc_min_freelist(
const uint8_t *levels = pag ? pag->pagf_levels : fake_levels;
unsigned int min_free;
- ASSERT(mp->m_ag_maxlevels > 0);
+ ASSERT(mp->m_alloc_maxlevels > 0);
/* space needed by-bno freespace btree */
min_free = min_t(unsigned int, levels[XFS_BTNUM_BNOi] + 1,
- mp->m_ag_maxlevels);
+ mp->m_alloc_maxlevels);
/* space needed by-size freespace btree */
min_free += min_t(unsigned int, levels[XFS_BTNUM_CNTi] + 1,
- mp->m_ag_maxlevels);
+ mp->m_alloc_maxlevels);
/* space needed reverse mapping used space btree */
if (xfs_has_rmapbt(mp))
min_free += min_t(unsigned int, levels[XFS_BTNUM_RMAPi] + 1,
@@ -2439,7 +2440,7 @@ xfs_agfl_reset(
/*
* Defer an AGFL block free. This is effectively equivalent to
- * xfs_bmap_add_free() with some special handling particular to AGFL blocks.
+ * xfs_free_extent_later() with some special handling particular to AGFL blocks.
*
* Deferring AGFL frees helps prevent log reservation overruns due to too many
* allocation operations in a transaction. AGFL frees are prone to this problem
@@ -2458,21 +2459,74 @@ xfs_defer_agfl_block(
struct xfs_mount *mp = tp->t_mountp;
struct xfs_extent_free_item *new; /* new element */
- ASSERT(xfs_bmap_free_item_zone != NULL);
+ ASSERT(xfs_extfree_item_cache != NULL);
ASSERT(oinfo != NULL);
- new = kmem_cache_alloc(xfs_bmap_free_item_zone,
+ new = kmem_cache_zalloc(xfs_extfree_item_cache,
GFP_KERNEL | __GFP_NOFAIL);
new->xefi_startblock = XFS_AGB_TO_FSB(mp, agno, agbno);
new->xefi_blockcount = 1;
- new->xefi_oinfo = *oinfo;
- new->xefi_skip_discard = false;
+ new->xefi_owner = oinfo->oi_owner;
trace_xfs_agfl_free_defer(mp, agno, 0, agbno, 1);
xfs_defer_add(tp, XFS_DEFER_OPS_TYPE_AGFL_FREE, &new->xefi_list);
}
+/*
+ * Add the extent to the list of extents to be free at transaction end.
+ * The list is maintained sorted (by block number).
+ */
+void
+__xfs_free_extent_later(
+ struct xfs_trans *tp,
+ xfs_fsblock_t bno,
+ xfs_filblks_t len,
+ const struct xfs_owner_info *oinfo,
+ bool skip_discard)
+{
+ struct xfs_extent_free_item *new; /* new element */
+#ifdef DEBUG
+ struct xfs_mount *mp = tp->t_mountp;
+ xfs_agnumber_t agno;
+ xfs_agblock_t agbno;
+
+ ASSERT(bno != NULLFSBLOCK);
+ ASSERT(len > 0);
+ ASSERT(len <= MAXEXTLEN);
+ ASSERT(!isnullstartblock(bno));
+ agno = XFS_FSB_TO_AGNO(mp, bno);
+ agbno = XFS_FSB_TO_AGBNO(mp, bno);
+ ASSERT(agno < mp->m_sb.sb_agcount);
+ ASSERT(agbno < mp->m_sb.sb_agblocks);
+ ASSERT(len < mp->m_sb.sb_agblocks);
+ ASSERT(agbno + len <= mp->m_sb.sb_agblocks);
+#endif
+ ASSERT(xfs_extfree_item_cache != NULL);
+
+ new = kmem_cache_zalloc(xfs_extfree_item_cache,
+ GFP_KERNEL | __GFP_NOFAIL);
+ new->xefi_startblock = bno;
+ new->xefi_blockcount = (xfs_extlen_t)len;
+ if (skip_discard)
+ new->xefi_flags |= XFS_EFI_SKIP_DISCARD;
+ if (oinfo) {
+ ASSERT(oinfo->oi_offset == 0);
+
+ if (oinfo->oi_flags & XFS_OWNER_INFO_ATTR_FORK)
+ new->xefi_flags |= XFS_EFI_ATTR_FORK;
+ if (oinfo->oi_flags & XFS_OWNER_INFO_BMBT_BLOCK)
+ new->xefi_flags |= XFS_EFI_BMBT_BLOCK;
+ new->xefi_owner = oinfo->oi_owner;
+ } else {
+ new->xefi_owner = XFS_RMAP_OWN_NULL;
+ }
+ trace_xfs_bmap_free_defer(tp->t_mountp,
+ XFS_FSB_TO_AGNO(tp->t_mountp, bno), 0,
+ XFS_FSB_TO_AGBNO(tp->t_mountp, bno), len);
+ xfs_defer_add(tp, XFS_DEFER_OPS_TYPE_FREE, &new->xefi_list);
+}
+
#ifdef DEBUG
/*
* Check if an AGF has a free extent record whose length is equal to
@@ -2903,13 +2957,16 @@ xfs_agf_verify(
if (be32_to_cpu(agf->agf_levels[XFS_BTNUM_BNO]) < 1 ||
be32_to_cpu(agf->agf_levels[XFS_BTNUM_CNT]) < 1 ||
- be32_to_cpu(agf->agf_levels[XFS_BTNUM_BNO]) > mp->m_ag_maxlevels ||
- be32_to_cpu(agf->agf_levels[XFS_BTNUM_CNT]) > mp->m_ag_maxlevels)
+ be32_to_cpu(agf->agf_levels[XFS_BTNUM_BNO]) >
+ mp->m_alloc_maxlevels ||
+ be32_to_cpu(agf->agf_levels[XFS_BTNUM_CNT]) >
+ mp->m_alloc_maxlevels)
return __this_address;
if (xfs_has_rmapbt(mp) &&
(be32_to_cpu(agf->agf_levels[XFS_BTNUM_RMAP]) < 1 ||
- be32_to_cpu(agf->agf_levels[XFS_BTNUM_RMAP]) > mp->m_rmap_maxlevels))
+ be32_to_cpu(agf->agf_levels[XFS_BTNUM_RMAP]) >
+ mp->m_rmap_maxlevels))
return __this_address;
if (xfs_has_rmapbt(mp) &&
@@ -3495,3 +3552,20 @@ xfs_agfl_walk(
return 0;
}
+
+int __init
+xfs_extfree_intent_init_cache(void)
+{
+ xfs_extfree_item_cache = kmem_cache_create("xfs_extfree_intent",
+ sizeof(struct xfs_extent_free_item),
+ 0, 0, NULL);
+
+ return xfs_extfree_item_cache != NULL ? 0 : -ENOMEM;
+}
+
+void
+xfs_extfree_intent_destroy_cache(void)
+{
+ kmem_cache_destroy(xfs_extfree_item_cache);
+ xfs_extfree_item_cache = NULL;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-12 02:29:18 +0000