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xfs: refcount log intent cleanups [v3.0 4/4]

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This series cleans up the refcount intent code before we start adding
 support for realtime devices.  Similar to previous intent cleanup
 patchsets, we start transforming the tracepoints so that the data
 extraction are done inside the tracepoint code, and then we start
 passing the intent itself to the _finish_one function.  This reduces the
 boxing and unboxing of parameters.
 
 With a bit of luck, this should all go splendidly.
 
 Signed-off-by: Darrick J. Wong <djwong@kernel.org>
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Merge tag 'refcount-intent-cleanups-6.11_2024-07-02' of https://git.kernel.org/pub/scm/linux/kernel/git/djwong/xfs-linux into xfs-6.11-mergeB

xfs: refcount log intent cleanups

This series cleans up the refcount intent code before we start adding
support for realtime devices.  Similar to previous intent cleanup
patchsets, we start transforming the tracepoints so that the data
extraction are done inside the tracepoint code, and then we start
passing the intent itself to the _finish_one function.  This reduces the
boxing and unboxing of parameters.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Chandan Babu R <chandanbabu@kernel.org>

* tag 'refcount-intent-cleanups-6.11_2024-07-02' of https://git.kernel.org/pub/scm/linux/kernel/git/djwong/xfs-linux:
  xfs: move xfs_refcount_update_defer_add to xfs_refcount_item.c
  xfs: simplify usage of the rcur local variable in xfs_refcount_finish_one
  xfs: don't bother calling xfs_refcount_finish_one_cleanup in xfs_refcount_finish_one
  xfs: reuse xfs_refcount_update_cancel_item
  xfs: add a ci_entry helper
  xfs: remove xfs_trans_set_refcount_flags
  xfs: clean up refcount log intent item tracepoint callsites
  xfs: pass btree cursors to refcount btree tracepoints
  xfs: create specialized classes for refcount tracepoints
  xfs: give refcount btree cursor error tracepoints their own class
This commit is contained in:
Chandan Babu R 2024-07-04 12:40:32 +05:30
commit 4cdbfe457a
6 changed files with 222 additions and 281 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

150
fs/xfs/libxfs/xfs_refcount.c
View File

@ -24,6 +24,7 @@
#include "xfs_rmap.h"
#include "xfs_ag.h"
#include "xfs_health.h"
#include "xfs_refcount_item.h"
struct kmem_cache *xfs_refcount_intent_cache;
@ -51,7 +52,7 @@ xfs_refcount_lookup_le(
xfs_agblock_t bno,
int *stat)
{
trace_xfs_refcount_lookup(cur->bc_mp, cur->bc_ag.pag->pag_agno,
trace_xfs_refcount_lookup(cur,
xfs_refcount_encode_startblock(bno, domain),
XFS_LOOKUP_LE);
cur->bc_rec.rc.rc_startblock = bno;
@ -71,7 +72,7 @@ xfs_refcount_lookup_ge(
xfs_agblock_t bno,
int *stat)
{
trace_xfs_refcount_lookup(cur->bc_mp, cur->bc_ag.pag->pag_agno,
trace_xfs_refcount_lookup(cur,
xfs_refcount_encode_startblock(bno, domain),
XFS_LOOKUP_GE);
cur->bc_rec.rc.rc_startblock = bno;
@ -91,7 +92,7 @@ xfs_refcount_lookup_eq(
xfs_agblock_t bno,
int *stat)
{
trace_xfs_refcount_lookup(cur->bc_mp, cur->bc_ag.pag->pag_agno,
trace_xfs_refcount_lookup(cur,
xfs_refcount_encode_startblock(bno, domain),
XFS_LOOKUP_LE);
cur->bc_rec.rc.rc_startblock = bno;
@ -183,7 +184,7 @@ xfs_refcount_get_rec(
if (fa)
return xfs_refcount_complain_bad_rec(cur, fa, irec);
trace_xfs_refcount_get(cur->bc_mp, cur->bc_ag.pag->pag_agno, irec);
trace_xfs_refcount_get(cur, irec);
return 0;
}
@ -201,7 +202,7 @@ xfs_refcount_update(
uint32_t start;
int error;
trace_xfs_refcount_update(cur->bc_mp, cur->bc_ag.pag->pag_agno, irec);
trace_xfs_refcount_update(cur, irec);
start = xfs_refcount_encode_startblock(irec->rc_startblock,
irec->rc_domain);
@ -211,8 +212,7 @@ xfs_refcount_update(
error = xfs_btree_update(cur, &rec);
if (error)
trace_xfs_refcount_update_error(cur->bc_mp,
cur->bc_ag.pag->pag_agno, error, _RET_IP_);
trace_xfs_refcount_update_error(cur, error, _RET_IP_);
return error;
}
@ -229,7 +229,7 @@ xfs_refcount_insert(
{
int error;
trace_xfs_refcount_insert(cur->bc_mp, cur->bc_ag.pag->pag_agno, irec);
trace_xfs_refcount_insert(cur, irec);
cur->bc_rec.rc.rc_startblock = irec->rc_startblock;
cur->bc_rec.rc.rc_blockcount = irec->rc_blockcount;
@ -247,8 +247,7 @@ xfs_refcount_insert(
out_error:
if (error)
trace_xfs_refcount_insert_error(cur->bc_mp,
cur->bc_ag.pag->pag_agno, error, _RET_IP_);
trace_xfs_refcount_insert_error(cur, error, _RET_IP_);
return error;
}
@ -275,7 +274,7 @@ xfs_refcount_delete(
error = -EFSCORRUPTED;
goto out_error;
}
trace_xfs_refcount_delete(cur->bc_mp, cur->bc_ag.pag->pag_agno, &irec);
trace_xfs_refcount_delete(cur, &irec);
error = xfs_btree_delete(cur, i);
if (XFS_IS_CORRUPT(cur->bc_mp, *i != 1)) {
xfs_btree_mark_sick(cur);
@ -288,8 +287,7 @@ xfs_refcount_delete(
&found_rec);
out_error:
if (error)
trace_xfs_refcount_delete_error(cur->bc_mp,
cur->bc_ag.pag->pag_agno, error, _RET_IP_);
trace_xfs_refcount_delete_error(cur, error, _RET_IP_);
return error;
}
@ -413,8 +411,7 @@ xfs_refcount_split_extent(
return 0;
*shape_changed = true;
trace_xfs_refcount_split_extent(cur->bc_mp, cur->bc_ag.pag->pag_agno,
&rcext, agbno);
trace_xfs_refcount_split_extent(cur, &rcext, agbno);
/* Establish the right extent. */
tmp = rcext;
@ -438,8 +435,7 @@ xfs_refcount_split_extent(
return error;
out_error:
trace_xfs_refcount_split_extent_error(cur->bc_mp,
cur->bc_ag.pag->pag_agno, error, _RET_IP_);
trace_xfs_refcount_split_extent_error(cur, error, _RET_IP_);
return error;
}
@ -458,8 +454,7 @@ xfs_refcount_merge_center_extents(
int error;
int found_rec;
trace_xfs_refcount_merge_center_extents(cur->bc_mp,
cur->bc_ag.pag->pag_agno, left, center, right);
trace_xfs_refcount_merge_center_extents(cur, left, center, right);
ASSERT(left->rc_domain == center->rc_domain);
ASSERT(right->rc_domain == center->rc_domain);
@ -522,8 +517,7 @@ xfs_refcount_merge_center_extents(
return error;
out_error:
trace_xfs_refcount_merge_center_extents_error(cur->bc_mp,
cur->bc_ag.pag->pag_agno, error, _RET_IP_);
trace_xfs_refcount_merge_center_extents_error(cur, error, _RET_IP_);
return error;
}
@ -541,8 +535,7 @@ xfs_refcount_merge_left_extent(
int error;
int found_rec;
trace_xfs_refcount_merge_left_extent(cur->bc_mp,
cur->bc_ag.pag->pag_agno, left, cleft);
trace_xfs_refcount_merge_left_extent(cur, left, cleft);
ASSERT(left->rc_domain == cleft->rc_domain);
@ -589,8 +582,7 @@ xfs_refcount_merge_left_extent(
return error;
out_error:
trace_xfs_refcount_merge_left_extent_error(cur->bc_mp,
cur->bc_ag.pag->pag_agno, error, _RET_IP_);
trace_xfs_refcount_merge_left_extent_error(cur, error, _RET_IP_);
return error;
}
@ -607,8 +599,7 @@ xfs_refcount_merge_right_extent(
int error;
int found_rec;
trace_xfs_refcount_merge_right_extent(cur->bc_mp,
cur->bc_ag.pag->pag_agno, cright, right);
trace_xfs_refcount_merge_right_extent(cur, cright, right);
ASSERT(right->rc_domain == cright->rc_domain);
@ -658,8 +649,7 @@ xfs_refcount_merge_right_extent(
return error;
out_error:
trace_xfs_refcount_merge_right_extent_error(cur->bc_mp,
cur->bc_ag.pag->pag_agno, error, _RET_IP_);
trace_xfs_refcount_merge_right_extent_error(cur, error, _RET_IP_);
return error;
}
@ -748,13 +738,11 @@ not_found:
cleft->rc_refcount = 1;
cleft->rc_domain = domain;
}
trace_xfs_refcount_find_left_extent(cur->bc_mp, cur->bc_ag.pag->pag_agno,
left, cleft, agbno);
trace_xfs_refcount_find_left_extent(cur, left, cleft, agbno);
return error;
out_error:
trace_xfs_refcount_find_left_extent_error(cur->bc_mp,
cur->bc_ag.pag->pag_agno, error, _RET_IP_);
trace_xfs_refcount_find_left_extent_error(cur, error, _RET_IP_);
return error;
}
@ -843,13 +831,12 @@ not_found:
cright->rc_refcount = 1;
cright->rc_domain = domain;
}
trace_xfs_refcount_find_right_extent(cur->bc_mp, cur->bc_ag.pag->pag_agno,
cright, right, agbno + aglen);
trace_xfs_refcount_find_right_extent(cur, cright, right,
agbno + aglen);
return error;
out_error:
trace_xfs_refcount_find_right_extent_error(cur->bc_mp,
cur->bc_ag.pag->pag_agno, error, _RET_IP_);
trace_xfs_refcount_find_right_extent_error(cur, error, _RET_IP_);
return error;
}
@ -1148,8 +1135,7 @@ xfs_refcount_adjust_extents(
tmp.rc_refcount = 1 + adj;
tmp.rc_domain = XFS_REFC_DOMAIN_SHARED;
trace_xfs_refcount_modify_extent(cur->bc_mp,
cur->bc_ag.pag->pag_agno, &tmp);
trace_xfs_refcount_modify_extent(cur, &tmp);
/*
* Either cover the hole (increment) or
@ -1214,8 +1200,7 @@ xfs_refcount_adjust_extents(
if (ext.rc_refcount == MAXREFCOUNT)
goto skip;
ext.rc_refcount += adj;
trace_xfs_refcount_modify_extent(cur->bc_mp,
cur->bc_ag.pag->pag_agno, &ext);
trace_xfs_refcount_modify_extent(cur, &ext);
cur->bc_refc.nr_ops++;
if (ext.rc_refcount > 1) {
error = xfs_refcount_update(cur, &ext);
@ -1254,8 +1239,7 @@ advloop:
return error;
out_error:
trace_xfs_refcount_modify_extent_error(cur->bc_mp,
cur->bc_ag.pag->pag_agno, error, _RET_IP_);
trace_xfs_refcount_modify_extent_error(cur, error, _RET_IP_);
return error;
}
@ -1272,11 +1256,9 @@ xfs_refcount_adjust(
int error;
if (adj == XFS_REFCOUNT_ADJUST_INCREASE)
trace_xfs_refcount_increase(cur->bc_mp,
cur->bc_ag.pag->pag_agno, *agbno, *aglen);
trace_xfs_refcount_increase(cur, *agbno, *aglen);
else
trace_xfs_refcount_decrease(cur->bc_mp,
cur->bc_ag.pag->pag_agno, *agbno, *aglen);
trace_xfs_refcount_decrease(cur, *agbno, *aglen);
/*
* Ensure that no rcextents cross the boundary of the adjustment range.
@ -1315,28 +1297,10 @@ xfs_refcount_adjust(
return 0;
out_error:
trace_xfs_refcount_adjust_error(cur->bc_mp, cur->bc_ag.pag->pag_agno,
error, _RET_IP_);
trace_xfs_refcount_adjust_error(cur, error, _RET_IP_);
return error;
}
/* Clean up after calling xfs_refcount_finish_one. */
void
xfs_refcount_finish_one_cleanup(
struct xfs_trans *tp,
struct xfs_btree_cur *rcur,
int error)
{
struct xfs_buf *agbp;
if (rcur == NULL)
return;
agbp = rcur->bc_ag.agbp;
xfs_btree_del_cursor(rcur, error);
if (error)
xfs_trans_brelse(tp, agbp);
}
/*
* Set up a continuation a deferred refcount operation by updating the intent.
* Checks to make sure we're not going to run off the end of the AG.
@ -1378,7 +1342,7 @@ xfs_refcount_finish_one(
struct xfs_btree_cur **pcur)
{
struct xfs_mount *mp = tp->t_mountp;
struct xfs_btree_cur *rcur;
struct xfs_btree_cur *rcur = *pcur;
struct xfs_buf *agbp = NULL;
int error = 0;
xfs_agblock_t bno;
@ -1387,9 +1351,7 @@ xfs_refcount_finish_one(
bno = XFS_FSB_TO_AGBNO(mp, ri->ri_startblock);
trace_xfs_refcount_deferred(mp, XFS_FSB_TO_AGNO(mp, ri->ri_startblock),
ri->ri_type, XFS_FSB_TO_AGBNO(mp, ri->ri_startblock),
ri->ri_blockcount);
trace_xfs_refcount_deferred(mp, ri);
if (XFS_TEST_ERROR(false, mp, XFS_ERRTAG_REFCOUNT_FINISH_ONE))
return -EIO;
@ -1398,11 +1360,10 @@ xfs_refcount_finish_one(
* If we haven't gotten a cursor or the cursor AG doesn't match
* the startblock, get one now.
*/
rcur = *pcur;
if (rcur != NULL && rcur->bc_ag.pag != ri->ri_pag) {
nr_ops = rcur->bc_refc.nr_ops;
shape_changes = rcur->bc_refc.shape_changes;
xfs_refcount_finish_one_cleanup(tp, rcur, 0);
xfs_btree_del_cursor(rcur, 0);
rcur = NULL;
*pcur = NULL;
}
@ -1412,11 +1373,11 @@ xfs_refcount_finish_one(
if (error)
return error;
rcur = xfs_refcountbt_init_cursor(mp, tp, agbp, ri->ri_pag);
*pcur = rcur = xfs_refcountbt_init_cursor(mp, tp, agbp,
ri->ri_pag);
rcur->bc_refc.nr_ops = nr_ops;
rcur->bc_refc.shape_changes = shape_changes;
}
*pcur = rcur;
switch (ri->ri_type) {
case XFS_REFCOUNT_INCREASE:
@ -1452,8 +1413,7 @@ xfs_refcount_finish_one(
return -EFSCORRUPTED;
}
if (!error && ri->ri_blockcount > 0)
trace_xfs_refcount_finish_one_leftover(mp, ri->ri_pag->pag_agno,
ri->ri_type, bno, ri->ri_blockcount);
trace_xfs_refcount_finish_one_leftover(mp, ri);
return error;
}
@ -1469,11 +1429,6 @@ __xfs_refcount_add(
{
struct xfs_refcount_intent *ri;
trace_xfs_refcount_defer(tp->t_mountp,
XFS_FSB_TO_AGNO(tp->t_mountp, startblock),
type, XFS_FSB_TO_AGBNO(tp->t_mountp, startblock),
blockcount);
ri = kmem_cache_alloc(xfs_refcount_intent_cache,
GFP_KERNEL | __GFP_NOFAIL);
INIT_LIST_HEAD(&ri->ri_list);
@ -1481,8 +1436,7 @@ __xfs_refcount_add(
ri->ri_startblock = startblock;
ri->ri_blockcount = blockcount;
xfs_refcount_update_get_group(tp->t_mountp, ri);
xfs_defer_add(tp, &ri->ri_list, &xfs_refcount_update_defer_type);
xfs_refcount_defer_add(tp, ri);
}
/*
@ -1537,8 +1491,7 @@ xfs_refcount_find_shared(
int have;
int error;
trace_xfs_refcount_find_shared(cur->bc_mp, cur->bc_ag.pag->pag_agno,
agbno, aglen);
trace_xfs_refcount_find_shared(cur, agbno, aglen);
/* By default, skip the whole range */
*fbno = NULLAGBLOCK;
@ -1625,13 +1578,11 @@ xfs_refcount_find_shared(
}
done:
trace_xfs_refcount_find_shared_result(cur->bc_mp,
cur->bc_ag.pag->pag_agno, *fbno, *flen);
trace_xfs_refcount_find_shared_result(cur, *fbno, *flen);
out_error:
if (error)
trace_xfs_refcount_find_shared_error(cur->bc_mp,
cur->bc_ag.pag->pag_agno, error, _RET_IP_);
trace_xfs_refcount_find_shared_error(cur, error, _RET_IP_);
return error;
}
@ -1737,8 +1688,7 @@ xfs_refcount_adjust_cow_extents(
tmp.rc_refcount = 1;
tmp.rc_domain = XFS_REFC_DOMAIN_COW;
trace_xfs_refcount_modify_extent(cur->bc_mp,
cur->bc_ag.pag->pag_agno, &tmp);
trace_xfs_refcount_modify_extent(cur, &tmp);
error = xfs_refcount_insert(cur, &tmp,
&found_tmp);
@ -1769,8 +1719,7 @@ xfs_refcount_adjust_cow_extents(
}
ext.rc_refcount = 0;
trace_xfs_refcount_modify_extent(cur->bc_mp,
cur->bc_ag.pag->pag_agno, &ext);
trace_xfs_refcount_modify_extent(cur, &ext);
error = xfs_refcount_delete(cur, &found_rec);
if (error)
goto out_error;
@ -1786,8 +1735,7 @@ xfs_refcount_adjust_cow_extents(
return error;
out_error:
trace_xfs_refcount_modify_extent_error(cur->bc_mp,
cur->bc_ag.pag->pag_agno, error, _RET_IP_);
trace_xfs_refcount_modify_extent_error(cur, error, _RET_IP_);
return error;
}
@ -1833,8 +1781,7 @@ xfs_refcount_adjust_cow(
return 0;
out_error:
trace_xfs_refcount_adjust_cow_error(cur->bc_mp, cur->bc_ag.pag->pag_agno,
error, _RET_IP_);
trace_xfs_refcount_adjust_cow_error(cur, error, _RET_IP_);
return error;
}
@ -1847,8 +1794,7 @@ __xfs_refcount_cow_alloc(
xfs_agblock_t agbno,
xfs_extlen_t aglen)
{
trace_xfs_refcount_cow_increase(rcur->bc_mp, rcur->bc_ag.pag->pag_agno,
agbno, aglen);
trace_xfs_refcount_cow_increase(rcur, agbno, aglen);
/* Add refcount btree reservation */
return xfs_refcount_adjust_cow(rcur, agbno, aglen,
@ -1864,8 +1810,7 @@ __xfs_refcount_cow_free(
xfs_agblock_t agbno,
xfs_extlen_t aglen)
{
trace_xfs_refcount_cow_decrease(rcur->bc_mp, rcur->bc_ag.pag->pag_agno,
agbno, aglen);
trace_xfs_refcount_cow_decrease(rcur, agbno, aglen);
/* Remove refcount btree reservation */
return xfs_refcount_adjust_cow(rcur, agbno, aglen,
@ -2010,9 +1955,6 @@ xfs_refcount_recover_cow_leftovers(
if (error)
goto out_free;
trace_xfs_refcount_recover_extent(mp, pag->pag_agno,
&rr->rr_rrec);
/* Free the orphan record */
fsb = XFS_AGB_TO_FSB(mp, pag->pag_agno,
rr->rr_rrec.rc_startblock);

11
fs/xfs/libxfs/xfs_refcount.h
View File

@ -48,6 +48,12 @@ enum xfs_refcount_intent_type {
XFS_REFCOUNT_FREE_COW,
};
#define XFS_REFCOUNT_INTENT_STRINGS \
{ XFS_REFCOUNT_INCREASE, "incr" }, \
{ XFS_REFCOUNT_DECREASE, "decr" }, \
{ XFS_REFCOUNT_ALLOC_COW, "alloc_cow" }, \
{ XFS_REFCOUNT_FREE_COW, "free_cow" }
struct xfs_refcount_intent {
struct list_head ri_list;
struct xfs_perag *ri_pag;
@ -68,16 +74,11 @@ xfs_refcount_check_domain(
return true;
}
void xfs_refcount_update_get_group(struct xfs_mount *mp,
struct xfs_refcount_intent *ri);
void xfs_refcount_increase_extent(struct xfs_trans *tp,
struct xfs_bmbt_irec *irec);
void xfs_refcount_decrease_extent(struct xfs_trans *tp,
struct xfs_bmbt_irec *irec);
extern void xfs_refcount_finish_one_cleanup(struct xfs_trans *tp,
struct xfs_btree_cur *rcur, int error);
extern int xfs_refcount_finish_one(struct xfs_trans *tp,
struct xfs_refcount_intent *ri, struct xfs_btree_cur **pcur);

107
fs/xfs/xfs_refcount_item.c
View File

@ -21,6 +21,8 @@
#include "xfs_log_priv.h"
#include "xfs_log_recover.h"
#include "xfs_ag.h"
#include "xfs_btree.h"
#include "xfs_trace.h"
struct kmem_cache *xfs_cui_cache;
struct kmem_cache *xfs_cud_cache;
@ -227,6 +229,11 @@ static const struct xfs_item_ops xfs_cud_item_ops = {
.iop_intent = xfs_cud_item_intent,
};
static inline struct xfs_refcount_intent *ci_entry(const struct list_head *e)
{
return list_entry(e, struct xfs_refcount_intent, ri_list);
}
/* Sort refcount intents by AG. */
static int
xfs_refcount_update_diff_items(
@ -234,34 +241,12 @@ xfs_refcount_update_diff_items(
const struct list_head *a,
const struct list_head *b)
{
struct xfs_refcount_intent *ra;
struct xfs_refcount_intent *rb;
ra = container_of(a, struct xfs_refcount_intent, ri_list);
rb = container_of(b, struct xfs_refcount_intent, ri_list);
struct xfs_refcount_intent *ra = ci_entry(a);
struct xfs_refcount_intent *rb = ci_entry(b);
return ra->ri_pag->pag_agno - rb->ri_pag->pag_agno;
}
/* Set the phys extent flags for this reverse mapping. */
static void
xfs_trans_set_refcount_flags(
struct xfs_phys_extent *pmap,
enum xfs_refcount_intent_type type)
{
pmap->pe_flags = 0;
switch (type) {
case XFS_REFCOUNT_INCREASE:
case XFS_REFCOUNT_DECREASE:
case XFS_REFCOUNT_ALLOC_COW:
case XFS_REFCOUNT_FREE_COW:
pmap->pe_flags |= type;
break;
default:
ASSERT(0);
}
}
/* Log refcount updates in the intent item. */
STATIC void
xfs_refcount_update_log_item(
@ -282,7 +267,18 @@ xfs_refcount_update_log_item(
pmap = &cuip->cui_format.cui_extents[next_extent];
pmap->pe_startblock = ri->ri_startblock;
pmap->pe_len = ri->ri_blockcount;
xfs_trans_set_refcount_flags(pmap, ri->ri_type);
pmap->pe_flags = 0;
switch (ri->ri_type) {
case XFS_REFCOUNT_INCREASE:
case XFS_REFCOUNT_DECREASE:
case XFS_REFCOUNT_ALLOC_COW:
case XFS_REFCOUNT_FREE_COW:
pmap->pe_flags |= ri->ri_type;
break;
default:
ASSERT(0);
}
}
static struct xfs_log_item *
@ -324,21 +320,29 @@ xfs_refcount_update_create_done(
return &cudp->cud_item;
}
/* Take a passive ref to the AG containing the space we're refcounting. */
/* Add this deferred CUI to the transaction. */
void
xfs_refcount_update_get_group(
struct xfs_mount *mp,
xfs_refcount_defer_add(
struct xfs_trans *tp,
struct xfs_refcount_intent *ri)
{
struct xfs_mount *mp = tp->t_mountp;
trace_xfs_refcount_defer(mp, ri);
ri->ri_pag = xfs_perag_intent_get(mp, ri->ri_startblock);
xfs_defer_add(tp, &ri->ri_list, &xfs_refcount_update_defer_type);
}
/* Release a passive AG ref after finishing refcounting work. */
static inline void
xfs_refcount_update_put_group(
struct xfs_refcount_intent *ri)
/* Cancel a deferred refcount update. */
STATIC void
xfs_refcount_update_cancel_item(
struct list_head *item)
{
struct xfs_refcount_intent *ri = ci_entry(item);
xfs_perag_intent_put(ri->ri_pag);
kmem_cache_free(xfs_refcount_intent_cache, ri);
}
/* Process a deferred refcount update. */
@ -349,11 +353,9 @@ xfs_refcount_update_finish_item(
struct list_head *item,
struct xfs_btree_cur **state)
{
struct xfs_refcount_intent *ri;
struct xfs_refcount_intent *ri = ci_entry(item);
int error;
ri = container_of(item, struct xfs_refcount_intent, ri_list);
/* Did we run out of reservation? Requeue what we didn't finish. */
error = xfs_refcount_finish_one(tp, ri, state);
if (!error && ri->ri_blockcount > 0) {
@ -362,11 +364,27 @@ xfs_refcount_update_finish_item(
return -EAGAIN;
}
xfs_refcount_update_put_group(ri);
kmem_cache_free(xfs_refcount_intent_cache, ri);
xfs_refcount_update_cancel_item(item);
return error;
}
/* Clean up after calling xfs_refcount_finish_one. */
STATIC void
xfs_refcount_finish_one_cleanup(
struct xfs_trans *tp,
struct xfs_btree_cur *rcur,
int error)
{
struct xfs_buf *agbp;
if (rcur == NULL)
return;
agbp = rcur->bc_ag.agbp;
xfs_btree_del_cursor(rcur, error);
if (error)
xfs_trans_brelse(tp, agbp);
}
/* Abort all pending CUIs. */
STATIC void
xfs_refcount_update_abort_intent(
@ -375,19 +393,6 @@ xfs_refcount_update_abort_intent(
xfs_cui_release(CUI_ITEM(intent));
}
/* Cancel a deferred refcount update. */
STATIC void
xfs_refcount_update_cancel_item(
struct list_head *item)
{
struct xfs_refcount_intent *ri;
ri = container_of(item, struct xfs_refcount_intent, ri_list);
xfs_refcount_update_put_group(ri);
kmem_cache_free(xfs_refcount_intent_cache, ri);
}
/* Is this recovered CUI ok? */
static inline bool
xfs_cui_validate_phys(
@ -426,7 +431,7 @@ xfs_cui_recover_work(
ri->ri_type = pmap->pe_flags & XFS_REFCOUNT_EXTENT_TYPE_MASK;
ri->ri_startblock = pmap->pe_startblock;
ri->ri_blockcount = pmap->pe_len;
xfs_refcount_update_get_group(mp, ri);
ri->ri_pag = xfs_perag_intent_get(mp, pmap->pe_startblock);
xfs_defer_add_item(dfp, &ri->ri_list);
}

5
fs/xfs/xfs_refcount_item.h
View File

@ -71,4 +71,9 @@ struct xfs_cud_log_item {
extern struct kmem_cache *xfs_cui_cache;
extern struct kmem_cache *xfs_cud_cache;
struct xfs_refcount_intent;
void xfs_refcount_defer_add(struct xfs_trans *tp,
struct xfs_refcount_intent *ri);
#endif /* __XFS_REFCOUNT_ITEM_H__ */

1
fs/xfs/xfs_trace.c
View File

@ -42,6 +42,7 @@
#include "xfs_exchrange.h"
#include "xfs_parent.h"
#include "xfs_rmap.h"
#include "xfs_refcount.h"
/*
* We include this last to have the helpers above available for the trace

229
fs/xfs/xfs_trace.h
View File

@ -92,6 +92,7 @@ struct xfs_parent_irec;
struct xfs_attrlist_cursor_kern;
struct xfs_extent_free_item;
struct xfs_rmap_intent;
struct xfs_refcount_intent;
#define XFS_ATTR_FILTER_FLAGS \
{ XFS_ATTR_ROOT, "ROOT" }, \
@ -3176,17 +3177,41 @@ DEFINE_AG_ERROR_EVENT(xfs_ag_resv_init_error);
/* refcount tracepoint classes */
/* reuse the discard trace class for agbno/aglen-based traces */
#define DEFINE_AG_EXTENT_EVENT(name) DEFINE_DISCARD_EVENT(name)
DECLARE_EVENT_CLASS(xfs_refcount_class,
TP_PROTO(struct xfs_btree_cur *cur, xfs_agblock_t agbno,
xfs_extlen_t len),
TP_ARGS(cur, agbno, len),
TP_STRUCT__entry(
__field(dev_t, dev)
__field(xfs_agnumber_t, agno)
__field(xfs_agblock_t, agbno)
__field(xfs_extlen_t, len)
),
TP_fast_assign(
__entry->dev = cur->bc_mp->m_super->s_dev;
__entry->agno = cur->bc_ag.pag->pag_agno;
__entry->agbno = agbno;
__entry->len = len;
),
TP_printk("dev %d:%d agno 0x%x agbno 0x%x fsbcount 0x%x",
MAJOR(__entry->dev), MINOR(__entry->dev),
__entry->agno,
__entry->agbno,
__entry->len)
);
#define DEFINE_REFCOUNT_EVENT(name) \
DEFINE_EVENT(xfs_refcount_class, name, \
TP_PROTO(struct xfs_btree_cur *cur, xfs_agblock_t agbno, \
xfs_extlen_t len), \
TP_ARGS(cur, agbno, len))
/* ag btree lookup tracepoint class */
TRACE_DEFINE_ENUM(XFS_LOOKUP_EQi);
TRACE_DEFINE_ENUM(XFS_LOOKUP_LEi);
TRACE_DEFINE_ENUM(XFS_LOOKUP_GEi);
DECLARE_EVENT_CLASS(xfs_ag_btree_lookup_class,
TP_PROTO(struct xfs_mount *mp, xfs_agnumber_t agno,
xfs_agblock_t agbno, xfs_lookup_t dir),
TP_ARGS(mp, agno, agbno, dir),
TRACE_EVENT(xfs_refcount_lookup,
TP_PROTO(struct xfs_btree_cur *cur, xfs_agblock_t agbno,
xfs_lookup_t dir),
TP_ARGS(cur, agbno, dir),
TP_STRUCT__entry(
__field(dev_t, dev)
__field(xfs_agnumber_t, agno)
@ -3194,8 +3219,8 @@ DECLARE_EVENT_CLASS(xfs_ag_btree_lookup_class,
__field(xfs_lookup_t, dir)
),
TP_fast_assign(
__entry->dev = mp->m_super->s_dev;
__entry->agno = agno;
__entry->dev = cur->bc_mp->m_super->s_dev;
__entry->agno = cur->bc_ag.pag->pag_agno;
__entry->agbno = agbno;
__entry->dir = dir;
),
@ -3207,17 +3232,10 @@ DECLARE_EVENT_CLASS(xfs_ag_btree_lookup_class,
__entry->dir)
)
#define DEFINE_AG_BTREE_LOOKUP_EVENT(name) \
DEFINE_EVENT(xfs_ag_btree_lookup_class, name, \
TP_PROTO(struct xfs_mount *mp, xfs_agnumber_t agno, \
xfs_agblock_t agbno, xfs_lookup_t dir), \
TP_ARGS(mp, agno, agbno, dir))
/* single-rcext tracepoint class */
DECLARE_EVENT_CLASS(xfs_refcount_extent_class,
TP_PROTO(struct xfs_mount *mp, xfs_agnumber_t agno,
struct xfs_refcount_irec *irec),
TP_ARGS(mp, agno, irec),
TP_PROTO(struct xfs_btree_cur *cur, struct xfs_refcount_irec *irec),
TP_ARGS(cur, irec),
TP_STRUCT__entry(
__field(dev_t, dev)
__field(xfs_agnumber_t, agno)
@ -3227,8 +3245,8 @@ DECLARE_EVENT_CLASS(xfs_refcount_extent_class,
__field(xfs_nlink_t, refcount)
),
TP_fast_assign(
__entry->dev = mp->m_super->s_dev;
__entry->agno = agno;
__entry->dev = cur->bc_mp->m_super->s_dev;
__entry->agno = cur->bc_ag.pag->pag_agno;
__entry->domain = irec->rc_domain;
__entry->startblock = irec->rc_startblock;
__entry->blockcount = irec->rc_blockcount;
@ -3245,15 +3263,14 @@ DECLARE_EVENT_CLASS(xfs_refcount_extent_class,
#define DEFINE_REFCOUNT_EXTENT_EVENT(name) \
DEFINE_EVENT(xfs_refcount_extent_class, name, \
TP_PROTO(struct xfs_mount *mp, xfs_agnumber_t agno, \
struct xfs_refcount_irec *irec), \
TP_ARGS(mp, agno, irec))
TP_PROTO(struct xfs_btree_cur *cur, struct xfs_refcount_irec *irec), \
TP_ARGS(cur, irec))
/* single-rcext and an agbno tracepoint class */
DECLARE_EVENT_CLASS(xfs_refcount_extent_at_class,
TP_PROTO(struct xfs_mount *mp, xfs_agnumber_t agno,
struct xfs_refcount_irec *irec, xfs_agblock_t agbno),
TP_ARGS(mp, agno, irec, agbno),
TP_PROTO(struct xfs_btree_cur *cur, struct xfs_refcount_irec *irec,
xfs_agblock_t agbno),
TP_ARGS(cur, irec, agbno),
TP_STRUCT__entry(
__field(dev_t, dev)
__field(xfs_agnumber_t, agno)
@ -3264,8 +3281,8 @@ DECLARE_EVENT_CLASS(xfs_refcount_extent_at_class,
__field(xfs_agblock_t, agbno)
),
TP_fast_assign(
__entry->dev = mp->m_super->s_dev;
__entry->agno = agno;
__entry->dev = cur->bc_mp->m_super->s_dev;
__entry->agno = cur->bc_ag.pag->pag_agno;
__entry->domain = irec->rc_domain;
__entry->startblock = irec->rc_startblock;
__entry->blockcount = irec->rc_blockcount;
@ -3284,15 +3301,15 @@ DECLARE_EVENT_CLASS(xfs_refcount_extent_at_class,
#define DEFINE_REFCOUNT_EXTENT_AT_EVENT(name) \
DEFINE_EVENT(xfs_refcount_extent_at_class, name, \
TP_PROTO(struct xfs_mount *mp, xfs_agnumber_t agno, \
struct xfs_refcount_irec *irec, xfs_agblock_t agbno), \
TP_ARGS(mp, agno, irec, agbno))
TP_PROTO(struct xfs_btree_cur *cur, struct xfs_refcount_irec *irec, \
xfs_agblock_t agbno), \
TP_ARGS(cur, irec, agbno))
/* double-rcext tracepoint class */
DECLARE_EVENT_CLASS(xfs_refcount_double_extent_class,
TP_PROTO(struct xfs_mount *mp, xfs_agnumber_t agno,
struct xfs_refcount_irec *i1, struct xfs_refcount_irec *i2),
TP_ARGS(mp, agno, i1, i2),
TP_PROTO(struct xfs_btree_cur *cur, struct xfs_refcount_irec *i1,
struct xfs_refcount_irec *i2),
TP_ARGS(cur, i1, i2),
TP_STRUCT__entry(
__field(dev_t, dev)
__field(xfs_agnumber_t, agno)
@ -3306,8 +3323,8 @@ DECLARE_EVENT_CLASS(xfs_refcount_double_extent_class,
__field(xfs_nlink_t, i2_refcount)
),
TP_fast_assign(
__entry->dev = mp->m_super->s_dev;
__entry->agno = agno;
__entry->dev = cur->bc_mp->m_super->s_dev;
__entry->agno = cur->bc_ag.pag->pag_agno;
__entry->i1_domain = i1->rc_domain;
__entry->i1_startblock = i1->rc_startblock;
__entry->i1_blockcount = i1->rc_blockcount;
@ -3333,16 +3350,15 @@ DECLARE_EVENT_CLASS(xfs_refcount_double_extent_class,
#define DEFINE_REFCOUNT_DOUBLE_EXTENT_EVENT(name) \
DEFINE_EVENT(xfs_refcount_double_extent_class, name, \
TP_PROTO(struct xfs_mount *mp, xfs_agnumber_t agno, \
struct xfs_refcount_irec *i1, struct xfs_refcount_irec *i2), \
TP_ARGS(mp, agno, i1, i2))
TP_PROTO(struct xfs_btree_cur *cur, struct xfs_refcount_irec *i1, \
struct xfs_refcount_irec *i2), \
TP_ARGS(cur, i1, i2))
/* double-rcext and an agbno tracepoint class */
DECLARE_EVENT_CLASS(xfs_refcount_double_extent_at_class,
TP_PROTO(struct xfs_mount *mp, xfs_agnumber_t agno,
struct xfs_refcount_irec *i1, struct xfs_refcount_irec *i2,
xfs_agblock_t agbno),
TP_ARGS(mp, agno, i1, i2, agbno),
TP_PROTO(struct xfs_btree_cur *cur, struct xfs_refcount_irec *i1,
struct xfs_refcount_irec *i2, xfs_agblock_t agbno),
TP_ARGS(cur, i1, i2, agbno),
TP_STRUCT__entry(
__field(dev_t, dev)
__field(xfs_agnumber_t, agno)
@ -3357,8 +3373,8 @@ DECLARE_EVENT_CLASS(xfs_refcount_double_extent_at_class,
__field(xfs_agblock_t, agbno)
),
TP_fast_assign(
__entry->dev = mp->m_super->s_dev;
__entry->agno = agno;
__entry->dev = cur->bc_mp->m_super->s_dev;
__entry->agno = cur->bc_ag.pag->pag_agno;
__entry->i1_domain = i1->rc_domain;
__entry->i1_startblock = i1->rc_startblock;
__entry->i1_blockcount = i1->rc_blockcount;
@ -3386,17 +3402,15 @@ DECLARE_EVENT_CLASS(xfs_refcount_double_extent_at_class,
#define DEFINE_REFCOUNT_DOUBLE_EXTENT_AT_EVENT(name) \
DEFINE_EVENT(xfs_refcount_double_extent_at_class, name, \
TP_PROTO(struct xfs_mount *mp, xfs_agnumber_t agno, \
struct xfs_refcount_irec *i1, struct xfs_refcount_irec *i2, \
xfs_agblock_t agbno), \
TP_ARGS(mp, agno, i1, i2, agbno))
TP_PROTO(struct xfs_btree_cur *cur, struct xfs_refcount_irec *i1, \
struct xfs_refcount_irec *i2, xfs_agblock_t agbno), \
TP_ARGS(cur, i1, i2, agbno))
/* triple-rcext tracepoint class */
DECLARE_EVENT_CLASS(xfs_refcount_triple_extent_class,
TP_PROTO(struct xfs_mount *mp, xfs_agnumber_t agno,
struct xfs_refcount_irec *i1, struct xfs_refcount_irec *i2,
struct xfs_refcount_irec *i3),
TP_ARGS(mp, agno, i1, i2, i3),
TP_PROTO(struct xfs_btree_cur *cur, struct xfs_refcount_irec *i1,
struct xfs_refcount_irec *i2, struct xfs_refcount_irec *i3),
TP_ARGS(cur, i1, i2, i3),
TP_STRUCT__entry(
__field(dev_t, dev)
__field(xfs_agnumber_t, agno)
@ -3414,8 +3428,8 @@ DECLARE_EVENT_CLASS(xfs_refcount_triple_extent_class,
__field(xfs_nlink_t, i3_refcount)
),
TP_fast_assign(
__entry->dev = mp->m_super->s_dev;
__entry->agno = agno;
__entry->dev = cur->bc_mp->m_super->s_dev;
__entry->agno = cur->bc_ag.pag->pag_agno;
__entry->i1_domain = i1->rc_domain;
__entry->i1_startblock = i1->rc_startblock;
__entry->i1_blockcount = i1->rc_blockcount;
@ -3450,109 +3464,82 @@ DECLARE_EVENT_CLASS(xfs_refcount_triple_extent_class,
#define DEFINE_REFCOUNT_TRIPLE_EXTENT_EVENT(name) \
DEFINE_EVENT(xfs_refcount_triple_extent_class, name, \
TP_PROTO(struct xfs_mount *mp, xfs_agnumber_t agno, \
struct xfs_refcount_irec *i1, struct xfs_refcount_irec *i2, \
struct xfs_refcount_irec *i3), \
TP_ARGS(mp, agno, i1, i2, i3))
TP_PROTO(struct xfs_btree_cur *cur, struct xfs_refcount_irec *i1, \
struct xfs_refcount_irec *i2, struct xfs_refcount_irec *i3), \
TP_ARGS(cur, i1, i2, i3))
/* refcount btree tracepoints */
DEFINE_AG_BTREE_LOOKUP_EVENT(xfs_refcount_lookup);
DEFINE_REFCOUNT_EXTENT_EVENT(xfs_refcount_get);
DEFINE_REFCOUNT_EXTENT_EVENT(xfs_refcount_update);
DEFINE_REFCOUNT_EXTENT_EVENT(xfs_refcount_insert);
DEFINE_REFCOUNT_EXTENT_EVENT(xfs_refcount_delete);
DEFINE_AG_ERROR_EVENT(xfs_refcount_insert_error);
DEFINE_AG_ERROR_EVENT(xfs_refcount_delete_error);
DEFINE_AG_ERROR_EVENT(xfs_refcount_update_error);
DEFINE_BTREE_ERROR_EVENT(xfs_refcount_insert_error);
DEFINE_BTREE_ERROR_EVENT(xfs_refcount_delete_error);
DEFINE_BTREE_ERROR_EVENT(xfs_refcount_update_error);
/* refcount adjustment tracepoints */
DEFINE_AG_EXTENT_EVENT(xfs_refcount_increase);
DEFINE_AG_EXTENT_EVENT(xfs_refcount_decrease);
DEFINE_AG_EXTENT_EVENT(xfs_refcount_cow_increase);
DEFINE_AG_EXTENT_EVENT(xfs_refcount_cow_decrease);
DEFINE_REFCOUNT_EVENT(xfs_refcount_increase);
DEFINE_REFCOUNT_EVENT(xfs_refcount_decrease);
DEFINE_REFCOUNT_EVENT(xfs_refcount_cow_increase);
DEFINE_REFCOUNT_EVENT(xfs_refcount_cow_decrease);
DEFINE_REFCOUNT_TRIPLE_EXTENT_EVENT(xfs_refcount_merge_center_extents);
DEFINE_REFCOUNT_EXTENT_EVENT(xfs_refcount_modify_extent);
DEFINE_REFCOUNT_EXTENT_EVENT(xfs_refcount_recover_extent);
DEFINE_REFCOUNT_EXTENT_AT_EVENT(xfs_refcount_split_extent);
DEFINE_REFCOUNT_DOUBLE_EXTENT_EVENT(xfs_refcount_merge_left_extent);
DEFINE_REFCOUNT_DOUBLE_EXTENT_EVENT(xfs_refcount_merge_right_extent);
DEFINE_REFCOUNT_DOUBLE_EXTENT_AT_EVENT(xfs_refcount_find_left_extent);
DEFINE_REFCOUNT_DOUBLE_EXTENT_AT_EVENT(xfs_refcount_find_right_extent);
DEFINE_AG_ERROR_EVENT(xfs_refcount_adjust_error);
DEFINE_AG_ERROR_EVENT(xfs_refcount_adjust_cow_error);
DEFINE_AG_ERROR_EVENT(xfs_refcount_merge_center_extents_error);
DEFINE_AG_ERROR_EVENT(xfs_refcount_modify_extent_error);
DEFINE_AG_ERROR_EVENT(xfs_refcount_split_extent_error);
DEFINE_AG_ERROR_EVENT(xfs_refcount_merge_left_extent_error);
DEFINE_AG_ERROR_EVENT(xfs_refcount_merge_right_extent_error);
DEFINE_AG_ERROR_EVENT(xfs_refcount_find_left_extent_error);
DEFINE_AG_ERROR_EVENT(xfs_refcount_find_right_extent_error);
DEFINE_BTREE_ERROR_EVENT(xfs_refcount_adjust_error);
DEFINE_BTREE_ERROR_EVENT(xfs_refcount_adjust_cow_error);
DEFINE_BTREE_ERROR_EVENT(xfs_refcount_merge_center_extents_error);
DEFINE_BTREE_ERROR_EVENT(xfs_refcount_modify_extent_error);
DEFINE_BTREE_ERROR_EVENT(xfs_refcount_split_extent_error);
DEFINE_BTREE_ERROR_EVENT(xfs_refcount_merge_left_extent_error);
DEFINE_BTREE_ERROR_EVENT(xfs_refcount_merge_right_extent_error);
DEFINE_BTREE_ERROR_EVENT(xfs_refcount_find_left_extent_error);
DEFINE_BTREE_ERROR_EVENT(xfs_refcount_find_right_extent_error);
/* reflink helpers */
DEFINE_AG_EXTENT_EVENT(xfs_refcount_find_shared);
DEFINE_AG_EXTENT_EVENT(xfs_refcount_find_shared_result);
DEFINE_AG_ERROR_EVENT(xfs_refcount_find_shared_error);
DEFINE_REFCOUNT_EVENT(xfs_refcount_find_shared);
DEFINE_REFCOUNT_EVENT(xfs_refcount_find_shared_result);
DEFINE_BTREE_ERROR_EVENT(xfs_refcount_find_shared_error);
TRACE_DEFINE_ENUM(XFS_REFCOUNT_INCREASE);
TRACE_DEFINE_ENUM(XFS_REFCOUNT_DECREASE);
TRACE_DEFINE_ENUM(XFS_REFCOUNT_ALLOC_COW);
TRACE_DEFINE_ENUM(XFS_REFCOUNT_FREE_COW);
DECLARE_EVENT_CLASS(xfs_refcount_deferred_class,
TP_PROTO(struct xfs_mount *mp, xfs_agnumber_t agno,
int type, xfs_agblock_t agbno, xfs_extlen_t len),
TP_ARGS(mp, agno, type, agbno, len),
TP_PROTO(struct xfs_mount *mp, struct xfs_refcount_intent *refc),
TP_ARGS(mp, refc),
TP_STRUCT__entry(
__field(dev_t, dev)
__field(xfs_agnumber_t, agno)
__field(int, type)
__field(int, op)
__field(xfs_agblock_t, agbno)
__field(xfs_extlen_t, len)
),
TP_fast_assign(
__entry->dev = mp->m_super->s_dev;
__entry->agno = agno;
__entry->type = type;
__entry->agbno = agbno;
__entry->len = len;
__entry->agno = XFS_FSB_TO_AGNO(mp, refc->ri_startblock);
__entry->op = refc->ri_type;
__entry->agbno = XFS_FSB_TO_AGBNO(mp, refc->ri_startblock);
__entry->len = refc->ri_blockcount;
),
TP_printk("dev %d:%d op %d agno 0x%x agbno 0x%x fsbcount 0x%x",
TP_printk("dev %d:%d op %s agno 0x%x agbno 0x%x fsbcount 0x%x",
MAJOR(__entry->dev), MINOR(__entry->dev),
__entry->type,
__print_symbolic(__entry->op, XFS_REFCOUNT_INTENT_STRINGS),
__entry->agno,
__entry->agbno,
__entry->len)
);
#define DEFINE_REFCOUNT_DEFERRED_EVENT(name) \
DEFINE_EVENT(xfs_refcount_deferred_class, name, \
TP_PROTO(struct xfs_mount *mp, xfs_agnumber_t agno, \
int type, \
xfs_agblock_t bno, \
xfs_extlen_t len), \
TP_ARGS(mp, agno, type, bno, len))
TP_PROTO(struct xfs_mount *mp, struct xfs_refcount_intent *refc), \
TP_ARGS(mp, refc))
DEFINE_REFCOUNT_DEFERRED_EVENT(xfs_refcount_defer);
DEFINE_REFCOUNT_DEFERRED_EVENT(xfs_refcount_deferred);
TRACE_EVENT(xfs_refcount_finish_one_leftover,
TP_PROTO(struct xfs_mount *mp, xfs_agnumber_t agno,
int type, xfs_agblock_t agbno, xfs_extlen_t len),
TP_ARGS(mp, agno, type, agbno, len),
TP_STRUCT__entry(
__field(dev_t, dev)
__field(xfs_agnumber_t, agno)
__field(int, type)
__field(xfs_agblock_t, agbno)
__field(xfs_extlen_t, len)
),
TP_fast_assign(
__entry->dev = mp->m_super->s_dev;
__entry->agno = agno;
__entry->type = type;
__entry->agbno = agbno;
__entry->len = len;
),
TP_printk("dev %d:%d type %d agno 0x%x agbno 0x%x fsbcount 0x%x",
MAJOR(__entry->dev), MINOR(__entry->dev),
__entry->type,
__entry->agno,
__entry->agbno,
__entry->len)
);
DEFINE_REFCOUNT_DEFERRED_EVENT(xfs_refcount_finish_one_leftover);
/* simple inode-based error/%ip tracepoint class */
DECLARE_EVENT_CLASS(xfs_inode_error_class,