nfsd: use RWF_SYNC
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index d40010e..6fbd81e 100644
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -935,8 +935,8 @@
int stable = *stablep;
int use_wgather;
loff_t pos = offset;
- loff_t end = LLONG_MAX;
unsigned int pflags = current->flags;
+ int flags = 0;
if (test_bit(RQ_LOCAL, &rqstp->rq_flags))
/*
@@ -955,9 +955,12 @@
if (!EX_ISSYNC(exp))
stable = 0;
+ if (stable && !use_wgather)
+ flags |= RWF_SYNC;
+
/* Write the data. */
oldfs = get_fs(); set_fs(KERNEL_DS);
- host_err = vfs_writev(file, (struct iovec __user *)vec, vlen, &pos, 0);
+ host_err = vfs_writev(file, (struct iovec __user *)vec, vlen, &pos, flags);
set_fs(oldfs);
if (host_err < 0)
goto out_nfserr;
@@ -965,15 +968,8 @@
nfsdstats.io_write += host_err;
fsnotify_modify(file);
- if (stable) {
- if (use_wgather) {
- host_err = wait_for_concurrent_writes(file);
- } else {
- if (*cnt)
- end = offset + *cnt - 1;
- host_err = vfs_fsync_range(file, offset, end, 0);
- }
- }
+ if (stable && use_wgather)
+ host_err = wait_for_concurrent_writes(file);
out_nfserr:
dprintk("nfsd: write complete host_err=%d\n", host_err);