From: David Howells <dhowells@redhat.com>
Date: Tue, 12 Oct 2021 12:05:27 +0100
Subject: netfs: Display the netfs inode number in the netfs_read tracepoint
Git-commit: 9e1aa6b8f484dde5ada1212092d20ea3f55c24e8
Patch-mainline: v5.17-rc1
References: jsc#SES-1880
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@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
cc: linux-cachefs@redhat.com
Link: https://lore.kernel.org/r/163819581097.215744.17476611915583897051.stgit@warthog.procyon.org.uk/ # v1
Link: https://lore.kernel.org/r/163906885903.143852.12229407815154182247.stgit@warthog.procyon.org.uk/ # v2
Link: https://lore.kernel.org/r/163967078164.1823006.15286989199782861123.stgit@warthog.procyon.org.uk/ # v3
Link: https://lore.kernel.org/r/164021487412.640689.7544388469390936443.stgit@warthog.procyon.org.uk/ # v4
Acked-by: Luis Henriques <lhenriques@suse.com>
---
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)
);