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> --- 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