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authorDave Chinner <david@fromorbit.com>2010-01-11 11:47:46 +0000
committerAlex Elder <aelder@sgi.com>2010-01-15 15:34:12 -0600
commit0fa800fbd549736dfdc1d7761f87e33dc8cd973b (patch)
tree3940f2f5bc4bb3bec888f7ef9ed8a8c875e02695 /fs/xfs/linux-2.6/xfs_trace.h
parentaed3bb90abaf0b42e8c8747e192f7bb97f445279 (diff)
xfs: Add trace points for per-ag refcount debugging.
Uninline xfs_perag_{get,put} so that tracepoints can be inserted into them to speed debugging of reference count problems. Signed-off-by: Dave Chinner <david@fromorbit.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Alex Elder <aelder@sgi.com>
Diffstat (limited to 'fs/xfs/linux-2.6/xfs_trace.h')
-rw-r--r--fs/xfs/linux-2.6/xfs_trace.h27
1 files changed, 27 insertions, 0 deletions
diff --git a/fs/xfs/linux-2.6/xfs_trace.h b/fs/xfs/linux-2.6/xfs_trace.h
index 3353aef50530..1bb09e70b2eb 100644
--- a/fs/xfs/linux-2.6/xfs_trace.h
+++ b/fs/xfs/linux-2.6/xfs_trace.h
@@ -78,6 +78,33 @@ DECLARE_EVENT_CLASS(xfs_attr_list_class,
)
)
+#define DEFINE_PERAG_REF_EVENT(name) \
+TRACE_EVENT(name, \
+ TP_PROTO(struct xfs_mount *mp, xfs_agnumber_t agno, int refcount, \
+ unsigned long caller_ip), \
+ TP_ARGS(mp, agno, refcount, caller_ip), \
+ TP_STRUCT__entry( \
+ __field(dev_t, dev) \
+ __field(xfs_agnumber_t, agno) \
+ __field(int, refcount) \
+ __field(unsigned long, caller_ip) \
+ ), \
+ TP_fast_assign( \
+ __entry->dev = mp->m_super->s_dev; \
+ __entry->agno = agno; \
+ __entry->refcount = refcount; \
+ __entry->caller_ip = caller_ip; \
+ ), \
+ TP_printk("dev %d:%d agno %u refcount %d caller %pf", \
+ MAJOR(__entry->dev), MINOR(__entry->dev), \
+ __entry->agno, \
+ __entry->refcount, \
+ (char *)__entry->caller_ip) \
+);
+
+DEFINE_PERAG_REF_EVENT(xfs_perag_get)
+DEFINE_PERAG_REF_EVENT(xfs_perag_put)
+
#define DEFINE_ATTR_LIST_EVENT(name) \
DEFINE_EVENT(xfs_attr_list_class, name, \
TP_PROTO(struct xfs_attr_list_context *ctx), \