From 7f0f1ea069e52d5a16921abd59377a7da6c25149 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ahelenia=20Ziemia=C5=84ska?= Date: Mon, 3 Jul 2023 16:42:17 +0200 Subject: splice: fsnotify_access(fd)/fsnotify_modify(fd) in vmsplice MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Same logic applies here: this can fill up the pipe and pollers that rely on getting IN_MODIFY notifications never wake up. Fixes: 983652c69199 ("splice: report related fsnotify events") Link: https://lore.kernel.org/linux-fsdevel/jbyihkyk5dtaohdwjyivambb2gffyjs3dodpofafnkkunxq7bu@jngkdxx65pux/t/#u Link: https://bugs.debian.org/1039488 Signed-off-by: Ahelenia Ziemiańska Acked-by: Jan Kara Reviewed-by: Amir Goldstein Message-Id: <8d9ad5acb9c5c1dd2376a2ff5da6ac3183115389.1688393619.git.nabijaczleweli@nabijaczleweli.xyz> Signed-off-by: Christian Brauner --- fs/splice.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/fs/splice.c b/fs/splice.c index 016b0a83df44..2cb89f5f9a8a 100644 --- a/fs/splice.c +++ b/fs/splice.c @@ -1460,6 +1460,9 @@ static long vmsplice_to_user(struct file *file, struct iov_iter *iter, pipe_unlock(pipe); } + if (ret > 0) + fsnotify_access(file); + return ret; } @@ -1489,8 +1492,10 @@ static long vmsplice_to_pipe(struct file *file, struct iov_iter *iter, if (!ret) ret = iter_to_pipe(iter, pipe, buf_flag); pipe_unlock(pipe); - if (ret > 0) + if (ret > 0) { wakeup_pipe_readers(pipe); + fsnotify_modify(file); + } return ret; } -- cgit v1.2.3