Direct IO does not benefit from write back cache and it
also avoides another direct IO write code path.
Cc: Hao Xu <howeyxu@xxxxxxxxxxx>
Cc: Miklos Szeredi <miklos@xxxxxxxxxx>
Cc: Dharmendra Singh <dsingh@xxxxxxx>
Signed-off-by: Bernd Schubert <bschubert@xxxxxxx>
Acked-by: Miklos Szeredi <mszeredi@xxxxxxxxxx>
---
fs/fuse/file.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index 1cdb6327511e..b1b9f2b9a37d 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -1307,7 +1307,7 @@ static ssize_t fuse_cache_write_iter(struct kiocb *iocb, struct iov_iter *from)
ssize_t err;
struct fuse_conn *fc = get_fuse_conn(inode);
- if (fc->writeback_cache) {
+ if (fc->writeback_cache && !(iocb->ki_flags & IOCB_DIRECT)) {
/* Update size (EOF optimization) and mode (SUID clearing) */
err = fuse_update_attributes(mapping->host, file,
STATX_SIZE | STATX_MODE);
--
2.39.2
