From: Jens Axboe <axboe@xxxxxxxxx>
commit f63cf5192fe3418ad5ae1a4412eba5694b145f79 upstream.
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@xxxxxxxxxxxxxxx
Signed-off-by: Jens Axboe <axboe@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
fs/io_uring.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -2720,8 +2720,12 @@ static bool io_rw_should_reissue(struct
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)) {
@@ -4211,6 +4215,8 @@ static int io_fallocate(struct io_kiocb
req->sync.len);
if (ret < 0)
req_set_fail(req);
+ else
+ fsnotify_modify(req->file);
io_req_complete(req, ret);
return 0;
}
