From: Jens Axboe Date: Sun, 20 Mar 2022 19:08:38 +0000 (-0600) Subject: io_uring: ensure that fsnotify is always called X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=df1ec53252d5b5b26ea49e30438741c9a6d89857;p=linux.git io_uring: ensure that fsnotify is always called [ Upstream commit f63cf5192fe3418ad5ae1a4412eba5694b145f79 ] 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: Sasha Levin --- diff --git a/fs/io_uring.c b/fs/io_uring.c index 1893237403247..0c5dcda0b6221 100644 --- a/fs/io_uring.c +++ b/fs/io_uring.c @@ -2686,8 +2686,12 @@ 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 (res != req->result) { if ((res == -EAGAIN || res == -EOPNOTSUPP) && io_rw_should_reissue(req)) { @@ -4183,6 +4187,8 @@ 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; }