NFS: Remove nfs_writepage_sync()

Maintaining two parallel ways of doing synchronous writes is rather
pointless. This patch gets rid of the legacy nfs_writepage_sync(), and
replaces it with the faster asynchronous writes.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/fs/nfs/file.c b/fs/nfs/file.c
index d6ee60fc3ba..143a19037ce 100644
--- a/fs/nfs/file.c
+++ b/fs/nfs/file.c
@@ -378,6 +378,12 @@ static ssize_t nfs_file_write(struct kiocb *iocb, const struct iovec *iov,
 
         nfs_add_stats(inode, NFSIOS_NORMALWRITTENBYTES, count);
         result = generic_file_aio_write(iocb, iov, nr_segs, pos);
+        /* Return error values for O_SYNC and IS_SYNC() */
+        if (result >= 0 && (IS_SYNC(inode) || (iocb->ki_filp->f_flags & O_SYNC))) {
+                int err = nfs_fsync(iocb->ki_filp, dentry, 1);
+                if (err < 0)
+                        result = err;
+        }
 out:
         return result;