From: Chuck Lever <chuck.lever@oracle.com>
Date: Mon, 1 Feb 2010 19:17:32 +0000 (-0500)
Subject: NFS: Account for NFS bytes read via the splice API
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=aa2f1ef10e6ad65c9138ec576f82c08f32e6f32c;p=linux-beck.git

NFS: Account for NFS bytes read via the splice API

Bytes read via the splice API should be accounted for in the NFS
performance statistics.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---

diff --git a/fs/nfs/file.c b/fs/nfs/file.c
index 7f4910c98c7c..abbc20281ea4 100644
--- a/fs/nfs/file.c
+++ b/fs/nfs/file.c
@@ -284,8 +284,11 @@ nfs_file_splice_read(struct file *filp, loff_t *ppos,
 		(unsigned long) count, (unsigned long long) *ppos);
 
 	res = nfs_revalidate_mapping(inode, filp->f_mapping);
-	if (!res)
+	if (!res) {
 		res = generic_file_splice_read(filp, ppos, pipe, count, flags);
+		if (res > 0)
+			nfs_add_stats(inode, NFSIOS_NORMALREADBYTES, res);
+	}
 	return res;
 }