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| author | Chuck Lever <chuck.lever@oracle.com> | 2007-11-12 12:16:58 -0500 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2007-11-26 16:32:38 -0500 |
| commit | b9148c6b80d802dbc2a7530b29915a80432e50c7 (patch) | |
| tree | 0388ff65beef42a21d1bd30a4868259f9a3573d2 /fs/nfs/direct.c | |
| parent | c216fd708e1a97431925ecffd6d1896cff61df0a (diff) | |
| download | linux-stable-b9148c6b80d802dbc2a7530b29915a80432e50c7.tar.gz linux-stable-b9148c6b80d802dbc2a7530b29915a80432e50c7.tar.bz2 linux-stable-b9148c6b80d802dbc2a7530b29915a80432e50c7.zip | |
NFS: Ensure we return zero if applications attempt to write zero bytes
A zero byte count direct write request should be a successful no-op, not an
error.
Signed-off-by: Chuck Lever <cel@netapp.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs/direct.c')
| -rw-r--r-- | fs/nfs/direct.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/nfs/direct.c b/fs/nfs/direct.c index 88d5d1c7f987..4d726e9db295 100644 --- a/fs/nfs/direct.c +++ b/fs/nfs/direct.c @@ -890,6 +890,8 @@ ssize_t nfs_file_direct_write(struct kiocb *iocb, const struct iovec *iov, retval = generic_write_checks(file, &pos, &count, 0); if (retval) goto out; + if (!count) + goto out; /* return 0 */ retval = -EINVAL; if ((ssize_t) count < 0) |