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[1/3] NFSv4.1/pnfs: Add a tracepoint for return-on-close events

Message ID 1440122405-30530-1-git-send-email-trond.myklebust@primarydata.com (mailing list archive)
State New, archived
Headers show

Commit Message

Trond Myklebust Aug. 21, 2015, 2 a.m. UTC 
Allow tracing of return-on-close.

Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
---
 fs/nfs/nfs4trace.h | 1 +
 fs/nfs/pnfs.c      | 1 +
 2 files changed, 2 insertions(+)
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Patch

diff --git a/fs/nfs/nfs4trace.h b/fs/nfs/nfs4trace.h
index 470af1a78bec..0b67f7825d00 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 8a3f30b695e2..cf90eeda9d71 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)