From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 36F2EC7EE24 for ; Tue, 30 May 2023 20:05:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230313AbjE3UEq (ORCPT ); Tue, 30 May 2023 16:04:46 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44340 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232847AbjE3UE0 (ORCPT ); Tue, 30 May 2023 16:04:26 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D3885106; Tue, 30 May 2023 13:04:24 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 6EAC162779; Tue, 30 May 2023 20:04:24 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id B9F90C433EF; Tue, 30 May 2023 20:04:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1685477063; bh=IRYCKtN6+QiydIBtewyrVfLED7mOB5+fBBhIql5+Ibo=; h=Date:To:From:Subject:From; b=lRK9257oZzGUvtSHTt6rglQVhSyFUBFDsXWXh1DEtw/V8+tV/HSSz/dXmVSVUzdGJ MQ3GmDtr4DpgnfRiFwyVQ6xkxLuIrhWISLgsBDt2Lbi7qf0XfS3BFN5KIgtw+hzUY4 SYf2FQY+Q+ZcGS0gbpBXBy8USdSPVMKvD6Kb7utk= Date: Tue, 30 May 2023 13:04:22 -0700 To: mm-commits@vger.kernel.org, viro@zeniv.linux.org.uk, stable@vger.kernel.org, brauner@kernel.org, bsegall@google.com, akpm@linux-foundation.org From: Andrew Morton Subject: + epoll-ep_autoremove_wake_function-should-use-list_del_init_careful.patch added to mm-hotfixes-unstable branch Message-Id: <20230530200423.B9F90C433EF@smtp.kernel.org> Precedence: bulk Reply-To: linux-kernel@vger.kernel.org List-ID: X-Mailing-List: mm-commits@vger.kernel.org The patch titled Subject: epoll: ep_autoremove_wake_function should use list_del_init_careful has been added to the -mm mm-hotfixes-unstable branch. Its filename is epoll-ep_autoremove_wake_function-should-use-list_del_init_careful.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/epoll-ep_autoremove_wake_function-should-use-list_del_init_careful.patch This patch will later appear in the mm-hotfixes-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via the mm-everything branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there every 2-3 working days ------------------------------------------------------ From: Benjamin Segall Subject: epoll: ep_autoremove_wake_function should use list_del_init_careful Date: Tue, 30 May 2023 11:32:28 -0700 autoremove_wake_function uses list_del_init_careful, so should epoll's more aggressive variant. It only doesn't because it was copied from an older wait.c rather than the most recent. Link: https://lkml.kernel.org/r/xm26pm6hvfer.fsf@google.com Fixes: a16ceb139610 ("epoll: autoremove wakers even more aggressively") Signed-off-by: Ben Segall Cc: Al Viro Cc: Christian Brauner Cc: Signed-off-by: Andrew Morton --- fs/eventpoll.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/fs/eventpoll.c~epoll-ep_autoremove_wake_function-should-use-list_del_init_careful +++ a/fs/eventpoll.c @@ -1805,7 +1805,7 @@ static int ep_autoremove_wake_function(s { int ret = default_wake_function(wq_entry, mode, sync, key); - list_del_init(&wq_entry->entry); + list_del_init_careful(&wq_entry->entry); return ret; } _ Patches currently in -mm which might be from bsegall@google.com are epoll-ep_autoremove_wake_function-should-use-list_del_init_careful.patch