Commit c46eef34 authored by Darrick J. Wong's avatar Darrick J. Wong
Browse files

xfs: capture buffer ops in the xfs_buf tracepoints 



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

Signed-off-by: default avatarDarrick J. Wong <djwong@kernel.org>
Reviewed-by: default avatarDave Chinner <dchinner@redhat.com>
parent a44a027a

fs/xfs/xfs_trace.h

+4 −1
Original line number Diff line number Diff line
@@ -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)

)