From: Jens Axboe Date: Sun, 20 Mar 2022 19:08:38 +0000 (-0600) Subject: io_uring: ensure that fsnotify is always called X-Git-Tag: v5.17.2~1022 X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=b436d1e92662adecafff4c95baae6352289c2d80;p=users%2Fdwmw2%2Flinux.git io_uring: ensure that fsnotify is always called 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@vger.kernel.org Signed-off-by: Jens Axboe Signed-off-by: Greg Kroah-Hartman --- diff --git a/fs/io_uring.c b/fs/io_uring.c index 4715980e90150..1d79e5548de2d 100644 --- a/fs/io_uring.c +++ b/fs/io_uring.c @@ -2813,8 +2813,12 @@ 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)) { @@ -4301,6 +4305,8 @@ 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; }