NFSv4: Allow tracing of NFSv4 fsync calls

Commit Message

Trond Myklebust March 27, 2015, 4:59 p.m. UTC

I appear to have missed this when adding the ftrace probes.

Signed-off-by: Trond Myklebust <[e-mail]>
---
 fs/nfs/nfs4file.c | 5 +++++
 fs/nfs/nfstrace.c | 3 +++
 2 files changed, 8 insertions(+)

Patch

diff --git a/fs/nfs/nfs4file.c b/fs/nfs/nfs4file.c
index 8b46389c4c5b..0de62f7cfebf 100644
--- a/fs/nfs/nfs4file.c
+++ b/fs/nfs/nfs4file.c
@@ -10,6 +10,8 @@ 
 #include "fscache.h"
 #include "pnfs.h"
 
+#include "nfstrace.h"
+
 #ifdef CONFIG_NFS_V4_2
 #include "nfs42.h"
 #endif
@@ -100,6 +102,8 @@  nfs4_file_fsync(struct file *file, loff_t start, loff_t end, int datasync)
 	int ret;
 	struct inode *inode = file_inode(file);
 
+	trace_nfs_fsync_enter(inode);
+
 	do {
 		ret = filemap_write_and_wait_range(inode->i_mapping, start, end);
 		if (ret != 0)
@@ -118,6 +122,7 @@  nfs4_file_fsync(struct file *file, loff_t start, loff_t end, int datasync)
 		end = LLONG_MAX;
 	} while (ret == -EAGAIN);
 
+	trace_nfs_fsync_exit(inode, ret);
 	return ret;
 }
 
diff --git a/fs/nfs/nfstrace.c b/fs/nfs/nfstrace.c
index 4eb0aead69b6..c74f7af23d77 100644
--- a/fs/nfs/nfstrace.c
+++ b/fs/nfs/nfstrace.c
@@ -7,3 +7,6 @@ 
 
 #define CREATE_TRACE_POINTS
 #include "nfstrace.h"
+
+EXPORT_TRACEPOINT_SYMBOL_GPL(nfs_fsync_enter);
+EXPORT_TRACEPOINT_SYMBOL_GPL(nfs_fsync_exit);