[PATCH v4 04/68] netfs: Display the netfs inode number in the netfs_read tracepoint

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Display the netfs inode number in the netfs_read tracepoint so that this
can be used to correlate with the cachefiles_prep_read tracepoint.

Signed-off-by: David Howells <dhowells@xxxxxxxxxx>
Reviewed-by: Jeff Layton <jlayton@xxxxxxxxxx>
cc: linux-cachefs@xxxxxxxxxx
Link: https://lore.kernel.org/r/163819581097.215744.17476611915583897051.stgit@xxxxxxxxxxxxxxxxxxxxxx/ # v1
Link: https://lore.kernel.org/r/163906885903.143852.12229407815154182247.stgit@xxxxxxxxxxxxxxxxxxxxxx/ # v2
Link: https://lore.kernel.org/r/163967078164.1823006.15286989199782861123.stgit@xxxxxxxxxxxxxxxxxxxxxx/ # v3
---

 include/trace/events/netfs.h |    5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/include/trace/events/netfs.h b/include/trace/events/netfs.h
index 4d470bffd9f1..e6f4ebbb4c69 100644
--- a/include/trace/events/netfs.h
+++ b/include/trace/events/netfs.h
@@ -135,6 +135,7 @@ TRACE_EVENT(netfs_read,
 		    __field(loff_t,			start		)
 		    __field(size_t,			len		)
 		    __field(enum netfs_read_trace,	what		)
+		    __field(unsigned int,		netfs_inode	)
 			     ),
 
 	    TP_fast_assign(
@@ -143,12 +144,14 @@ TRACE_EVENT(netfs_read,
 		    __entry->start	= start;
 		    __entry->len	= len;
 		    __entry->what	= what;
+		    __entry->netfs_inode = rreq->inode->i_ino;
 			   ),
 
-	    TP_printk("R=%08x %s c=%08x s=%llx %zx",
+	    TP_printk("R=%08x %s c=%08x ni=%x s=%llx %zx",
 		      __entry->rreq,
 		      __print_symbolic(__entry->what, netfs_read_traces),
 		      __entry->cookie,
+		      __entry->netfs_inode,
 		      __entry->start, __entry->len)
 	    );
 


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