From: Trond Myklebust <[email protected]>

[ Upstream commit d33d4beb522987d1c305c12500796f9be3687dee ]

Ensure we update the write result count on success, since the
RPC call itself does not do so.

Reported-by: Jan Stancek <[email protected]>
Reported-by: Naresh Kamboju <[email protected]>
Signed-off-by: Trond Myklebust <[email protected]>
Tested-by: Jan Stancek <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
 fs/nfs/proc.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/fs/nfs/proc.c b/fs/nfs/proc.c
index 80ecdf2ec8b6a..b83e14ad13c45 100644
--- a/fs/nfs/proc.c
+++ b/fs/nfs/proc.c
@@ -610,8 +610,10 @@ static int nfs_proc_pgio_rpc_prepare(struct rpc_task *task,
 
 static int nfs_write_done(struct rpc_task *task, struct nfs_pgio_header *hdr)
 {
-       if (task->tk_status >= 0)
+       if (task->tk_status >= 0) {
+               hdr->res.count = hdr->args.count;
                nfs_writeback_update_inode(hdr);
+       }
        return 0;
 }
 
-- 
2.20.1



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