From: Dave Chinner <dchinner@xxxxxxxxxx>
So we can see what blocks are added to or removed from the AGFL during
allocation.
Signed-off-by: Dave Chinner <dchinner@xxxxxxxxxx>
---
fs/xfs/libxfs/xfs_alloc.c | 8 ++++++--
fs/xfs/xfs_trace.h | 11 ++++++++++-
2 files changed, 16 insertions(+), 3 deletions(-)
diff --git a/fs/xfs/libxfs/xfs_alloc.c b/fs/xfs/libxfs/xfs_alloc.c
index effb64cf714f..a5a9d8360e74 100644
--- a/fs/xfs/libxfs/xfs_alloc.c
+++ b/fs/xfs/libxfs/xfs_alloc.c
@@ -2264,10 +2264,12 @@ xfs_alloc_get_freelist(
xfs_mount_t *mp = tp->t_mountp;
xfs_perag_t *pag; /* per allocation group data */
+ agf = XFS_BUF_TO_AGF(agbp);
+ trace_xfs_alloc_get_freelist(mp, agf, 0, _RET_IP_);
+
/*
* Freelist is empty, give up.
*/
- agf = XFS_BUF_TO_AGF(agbp);
if (!agf->agf_flcount) {
*bnop = NULLAGBLOCK;
return 0;
@@ -2392,8 +2394,9 @@ xfs_alloc_put_freelist(
__be32 *agfl_bno;
int startoff;
- agf = XFS_BUF_TO_AGF(agbp);
mp = tp->t_mountp;
+ agf = XFS_BUF_TO_AGF(agbp);
+ trace_xfs_alloc_put_freelist(mp, agf, 0, _RET_IP_);
if (!agflbp && (error = xfs_alloc_read_agfl(mp, tp,
be32_to_cpu(agf->agf_seqno), &agflbp)))
@@ -2555,6 +2558,7 @@ xfs_read_agf(
if (!*bpp)
return 0;
+ trace_xfs_read_agf_detail(mp, XFS_BUF_TO_AGF(*bpp), 0, _RET_IP_);
ASSERT(!(*bpp)->b_error);
xfs_buf_set_ref(*bpp, XFS_AGF_REF);
return 0;
diff --git a/fs/xfs/xfs_trace.h b/fs/xfs/xfs_trace.h
index 0907752be62d..73e001d795ce 100644
--- a/fs/xfs/xfs_trace.h
+++ b/fs/xfs/xfs_trace.h
@@ -1516,7 +1516,7 @@ TRACE_EVENT(xfs_trans_commit_lsn,
__entry->lsn)
);
-TRACE_EVENT(xfs_agf,
+DECLARE_EVENT_CLASS(xfs_agf_class,
TP_PROTO(struct xfs_mount *mp, struct xfs_agf *agf, int flags,
unsigned long caller_ip),
TP_ARGS(mp, agf, flags, caller_ip),
@@ -1572,6 +1572,15 @@ TRACE_EVENT(xfs_agf,
__entry->longest,
(void *)__entry->caller_ip)
);
+#define DEFINE_AGF_EVENT(name) \
+DEFINE_EVENT(xfs_agf_class, name, \
+ TP_PROTO(struct xfs_mount *mp, struct xfs_agf *agf, int flags, \
+ unsigned long caller_ip), \
+ TP_ARGS(mp, agf, flags, caller_ip))
+DEFINE_AGF_EVENT(xfs_agf);
+DEFINE_AGF_EVENT(xfs_read_agf_detail);
+DEFINE_AGF_EVENT(xfs_alloc_get_freelist);
+DEFINE_AGF_EVENT(xfs_alloc_put_freelist);
TRACE_EVENT(xfs_free_extent,
TP_PROTO(struct xfs_mount *mp, xfs_agnumber_t agno, xfs_agblock_t agbno,
--
2.8.0.rc3
--
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