From: Qi Han <ha...@vivo.com>
f2fs doesn't support uncached write yet, for write() w/ IOCB_DONTCACHE
flag, let's return -EOPNOTSUPP instead of ignoring IOCB_DONTCACHE flag
and write w/o uncached IO.
Cc: Jens Axboe <ax...@kernel.dk>
Cc: Qi Han <ha...@vivo.com>
Signed-off-by: Chao Yu <c...@kernel.org>
---
fs/f2fs/file.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 9b8d24097b7a..7f09cad6b6d7 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -5185,6 +5185,11 @@ static ssize_t f2fs_file_write_iter(struct kiocb *iocb,
struct iov_iter *from)
goto out;
}
+ if (iocb->ki_flags & IOCB_DONTCACHE) {
+ ret = -EOPNOTSUPP;
+ goto out;
+ }
+
if (!f2fs_is_compress_backend_ready(inode)) {
ret = -EOPNOTSUPP;
goto out;
--
2.49.0
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