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xfs: capture buffer ops in the xfs_buf tracepoints

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Record the buffer ops in the xfs_buf tracepoints so that we can monitor
the alleged type of the buffer.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
This commit is contained in:
Darrick J. Wong 2022-04-25 18:37:05 -07:00
parent a44a027a8b
commit c46eef3483
1 changed files with 4 additions and 1 deletions
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5
fs/xfs/xfs_trace.h
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@ -418,6 +418,7 @@ DECLARE_EVENT_CLASS(xfs_buf_class,
__field(unsigned, lockval)
__field(unsigned, flags)
__field(unsigned long, caller_ip)
__field(const void *, buf_ops)
),
TP_fast_assign(
__entry->dev = bp->b_target->bt_dev;
@ -428,9 +429,10 @@ DECLARE_EVENT_CLASS(xfs_buf_class,
__entry->lockval = bp->b_sema.count;
__entry->flags = bp->b_flags;
__entry->caller_ip = caller_ip;
__entry->buf_ops = bp->b_ops;
),
TP_printk("dev %d:%d daddr 0x%llx bbcount 0x%x hold %d pincount %d "
"lock %d flags %s caller %pS",
"lock %d flags %s bufops %pS caller %pS",
MAJOR(__entry->dev), MINOR(__entry->dev),
(unsigned long long)__entry->bno,
__entry->nblks,
@ -438,6 +440,7 @@ DECLARE_EVENT_CLASS(xfs_buf_class,
__entry->pincount,
__entry->lockval,
__print_flags(__entry->flags, "|", XFS_BUF_FLAGS),
__entry->buf_ops,
(void *)__entry->caller_ip)
)