A zero byte count direct write request should be a successful no-op, not an
error.
Signed-off-by: Chuck Lever <[email protected]>
Signed-off-by: Chuck Lever <[email protected]>
---
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 88d5d1c..4d726e9 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)
-------------------------------------------------------------------------
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