From f63cf5192fe3418ad5ae1a4412eba5694b145f79 Mon Sep 17 00:00:00 2001
From: Jens Axboe <axboe@kernel.dk>
Date: Sun, 20 Mar 2022 13:08:38 -0600
Subject: [PATCH] io_uring: ensure that fsnotify is always called
Git-commit: f63cf5192fe3418ad5ae1a4412eba5694b145f79
Patch-mainline: v5.18-rc1
References: bsc#1205205
Ensure that we call fsnotify_modify() if we write a file, and that we
do fsnotify_access() if we read it. This enables anyone using inotify
on the file to get notified.
Ditto for fallocate, ensure that fsnotify_modify() is called.
Cc: stable@vger.kernel.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Gabriel Krisman Bertazi <krisman@suse.de>
---
fs/io_uring.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/fs/io_uring.c b/fs/io_uring.c
index 98949348ee02..1a65d7880440 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -2973,8 +2973,12 @@ static bool io_rw_should_reissue(struct io_kiocb *req)
static bool __io_complete_rw_common(struct io_kiocb *req, long res)
{
- if (req->rw.kiocb.ki_flags & IOCB_WRITE)
+ if (req->rw.kiocb.ki_flags & IOCB_WRITE) {
kiocb_end_write(req);
+ fsnotify_modify(req->file);
+ } else {
+ fsnotify_access(req->file);
+ }
if (unlikely(res != req->result)) {
if ((res == -EAGAIN || res == -EOPNOTSUPP) &&
io_rw_should_reissue(req)) {
@@ -4537,6 +4541,8 @@ static int io_fallocate(struct io_kiocb *req, unsigned int issue_flags)
req->sync.len);
if (ret < 0)
req_set_fail(req);
+ else
+ fsnotify_modify(req->file);
io_req_complete(req, ret);
return 0;
}
--
2.35.3