From: chenqiwu <chenqiwu@xxxxxxxxxx>
Remove trivial nowait check for btrfs_file_write_iter(),
since buffered writes will return -EINVAL if IOCB_NOWAIT
passed in the follow-up function generic_write_checks().
Signed-off-by: chenqiwu <chenqiwu@xxxxxxxxxx>
---
fs/btrfs/file.c | 4 ----
1 file changed, 4 deletions(-)
diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index a16da27..320af95 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -1896,10 +1896,6 @@ static ssize_t btrfs_file_write_iter(struct kiocb *iocb,
loff_t oldsize;
int clean_page = 0;
- if (!(iocb->ki_flags & IOCB_DIRECT) &&
- (iocb->ki_flags & IOCB_NOWAIT))
- return -EOPNOTSUPP;
-
if (iocb->ki_flags & IOCB_NOWAIT) {
if (!inode_trylock(inode))
return -EAGAIN;
--
1.9.1
