From: Darrick J. Wong <djwong@xxxxxxxxxx>
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@xxxxxxxxxx>
Reviewed-by: Dave Chinner <dchinner@xxxxxxxxxx>
---
fs/xfs/xfs_trace.h | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/fs/xfs/xfs_trace.h b/fs/xfs/xfs_trace.h
index e1197f9ad97e..91b916e82364 100644
--- a/fs/xfs/xfs_trace.h
+++ b/fs/xfs/xfs_trace.h
@@ -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)
)
