From: Trond Myklebust <trond.myklebust@primarydata.com>
Date: Thu, 20 Aug 2015 20:40:47 +0000 (-0500)
Subject: NFSv4.1/pnfs: Add a tracepoint for return-on-close events
X-Git-Tag: v4.9.8~3612^2~43
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=6a463beb9a433d91f3eaf85c2f0ca0aeddf3e0ab;p=platform%2Fkernel%2Flinux-rpi3.git

NFSv4.1/pnfs: Add a tracepoint for return-on-close events

Allow tracing of return-on-close.

Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
---

diff --git a/fs/nfs/nfs4trace.h b/fs/nfs/nfs4trace.h
index 470af1a..0b67f78 100644
--- a/fs/nfs/nfs4trace.h
+++ b/fs/nfs/nfs4trace.h
@@ -1136,6 +1136,7 @@ TRACE_EVENT(nfs4_layoutget,
 
 DEFINE_NFS4_INODE_EVENT(nfs4_layoutcommit);
 DEFINE_NFS4_INODE_EVENT(nfs4_layoutreturn);
+DEFINE_NFS4_INODE_EVENT(nfs4_layoutreturn_on_close);
 
 #endif /* CONFIG_NFS_V4_1 */
 
diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c
index 8a3f30b..cf90eed 100644
--- a/fs/nfs/pnfs.c
+++ b/fs/nfs/pnfs.c
@@ -1144,6 +1144,7 @@ void pnfs_roc_set_barrier(struct inode *ino, u32 barrier)
 	if (pnfs_seqid_is_newer(barrier, lo->plh_barrier))
 		lo->plh_barrier = barrier;
 	spin_unlock(&ino->i_lock);
+	trace_nfs4_layoutreturn_on_close(ino, 0);
 }
 
 void pnfs_roc_get_barrier(struct inode *ino, u32 *barrier)