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xfs: port the perag discard code to handle generic groups

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Port xfs_discard_extents and its tracepoints to handle generic groups
instead of just perags.  This is needed to enable busy extent tracking
for rtgroups.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Darrick J. Wong 2024-11-03 20:19:35 -08:00
parent e0b5b97dde
commit 0c271d906e
2 changed files with 37 additions and 17 deletions
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35
fs/xfs/xfs_discard.c
View File

@ -101,6 +101,24 @@ xfs_discard_endio(
bio_put(bio);
}
static inline struct block_device *
xfs_group_bdev(
const struct xfs_group *xg)
{
struct xfs_mount *mp = xg->xg_mount;
switch (xg->xg_type) {
case XG_TYPE_AG:
return mp->m_ddev_targp->bt_bdev;
case XG_TYPE_RTG:
return mp->m_rtdev_targp->bt_bdev;
default:
ASSERT(0);
break;
}
return NULL;
}
/*
* Walk the discard list and issue discards on all the busy extents in the
* list. We plug and chain the bios so that we only need a single completion
@ -118,12 +136,11 @@ xfs_discard_extents(
blk_start_plug(&plug);
list_for_each_entry(busyp, &extents->extent_list, list) {
struct xfs_perag *pag = to_perag(busyp->group);
trace_xfs_discard_extent(busyp->group, busyp->bno,
busyp->length);
trace_xfs_discard_extent(pag, busyp->bno, busyp->length);
error = __blkdev_issue_discard(mp->m_ddev_targp->bt_bdev,
xfs_agbno_to_daddr(pag, busyp->bno),
error = __blkdev_issue_discard(xfs_group_bdev(busyp->group),
xfs_gbno_to_daddr(busyp->group, busyp->bno),
XFS_FSB_TO_BB(mp, busyp->length),
GFP_KERNEL, &bio);
if (error && error != -EOPNOTSUPP) {
@ -241,11 +258,11 @@ xfs_trim_gather_extents(
* overlapping ranges for now.
*/
if (fbno + flen < tcur->start) {
trace_xfs_discard_exclude(pag, fbno, flen);
trace_xfs_discard_exclude(pag_group(pag), fbno, flen);
goto next_extent;
}
if (fbno > tcur->end) {
trace_xfs_discard_exclude(pag, fbno, flen);
trace_xfs_discard_exclude(pag_group(pag), fbno, flen);
if (tcur->by_bno) {
tcur->count = 0;
break;
@ -263,7 +280,7 @@ xfs_trim_gather_extents(
/* Too small? Give up. */
if (flen < tcur->minlen) {
trace_xfs_discard_toosmall(pag, fbno, flen);
trace_xfs_discard_toosmall(pag_group(pag), fbno, flen);
if (tcur->by_bno)
goto next_extent;
tcur->count = 0;
@ -275,7 +292,7 @@ xfs_trim_gather_extents(
* discard and try again the next time.
*/
if (xfs_extent_busy_search(pag_group(pag), fbno, flen)) {
trace_xfs_discard_busy(pag, fbno, flen);
trace_xfs_discard_busy(pag_group(pag), fbno, flen);
goto next_extent;
}

19
fs/xfs/xfs_trace.h
View File

@ -2475,23 +2475,26 @@ DEFINE_LOG_RECOVER_ICREATE_ITEM(xfs_log_recover_icreate_cancel);
DEFINE_LOG_RECOVER_ICREATE_ITEM(xfs_log_recover_icreate_recover);
DECLARE_EVENT_CLASS(xfs_discard_class,
TP_PROTO(const struct xfs_perag *pag, xfs_agblock_t agbno,
TP_PROTO(const struct xfs_group *xg, xfs_agblock_t agbno,
xfs_extlen_t len),
TP_ARGS(pag, agbno, len),
TP_ARGS(xg, agbno, len),
TP_STRUCT__entry(
__field(dev_t, dev)
__field(enum xfs_group_type, type)
__field(xfs_agnumber_t, agno)
__field(xfs_agblock_t, agbno)
__field(xfs_extlen_t, len)
),
TP_fast_assign(
__entry->dev = pag_mount(pag)->m_super->s_dev;
__entry->agno = pag_agno(pag);
__entry->dev = xg->xg_mount->m_super->s_dev;
__entry->type = xg->xg_type;
__entry->agno = xg->xg_gno;
__entry->agbno = agbno;
__entry->len = len;
),
TP_printk("dev %d:%d agno 0x%x agbno 0x%x fsbcount 0x%x",
TP_printk("dev %d:%d %sno 0x%x gbno 0x%x fsbcount 0x%x",
MAJOR(__entry->dev), MINOR(__entry->dev),
__print_symbolic(__entry->type, XG_TYPE_STRINGS),
__entry->agno,
__entry->agbno,
__entry->len)
@ -2499,9 +2502,9 @@ DECLARE_EVENT_CLASS(xfs_discard_class,
#define DEFINE_DISCARD_EVENT(name) \
DEFINE_EVENT(xfs_discard_class, name, \
TP_PROTO(const struct xfs_perag *pag, xfs_agblock_t agbno, \
xfs_extlen_t len), \
TP_ARGS(pag, agbno, len))
TP_PROTO(const struct xfs_group *xg, xfs_agblock_t agbno, \
xfs_extlen_t len), \
TP_ARGS(xg, agbno, len))
DEFINE_DISCARD_EVENT(xfs_discard_extent);
DEFINE_DISCARD_EVENT(xfs_discard_toosmall);
DEFINE_DISCARD_EVENT(xfs_discard_exclude);