From aa2f1ef10e6ad65c9138ec576f82c08f32e6f32c Mon Sep 17 00:00:00 2001
From: Chuck Lever <chuck.lever@oracle.com>
Date: Mon, 1 Feb 2010 14:17:32 -0500
Subject: [PATCH] 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>
---
fs/nfs/file.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
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;
}