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 5C7E4C433EF for ; Wed, 8 Jun 2022 02:27:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232664AbiFHC1p (ORCPT ); Tue, 7 Jun 2022 22:27:45 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60276 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1446838AbiFHC0V (ORCPT ); Tue, 7 Jun 2022 22:26:21 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D2C4D13E22 for ; Tue, 7 Jun 2022 15:42:06 -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 61D506164A for ; Tue, 7 Jun 2022 22:42:06 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id B368FC3411C; Tue, 7 Jun 2022 22:42:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1654641725; bh=UWYfV7bx1Fn7K6cunDbP5V9PqPDkXvX4wuQ0HtjkQVQ=; h=Date:To:From:Subject:From; b=bfi5atLCEu3ZGvjADJd59UxWHjW+TyxFn/NYwxmajvDX5MQ/HUXmPSD+GT1yQuzZ9 xURCjqoK8J1wLJxYIH33Y1rDbtQrQ45qD7ZPpsGd6Yh2NvIEknf0hjd82lkW75Jp/B 1oTQNUvxOQJeGv2Sor/0itwZA1D+d3km0LwI2P74= Date: Tue, 07 Jun 2022 15:42:05 -0700 To: mm-commits@vger.kernel.org, willy@infradead.org, oleksiy.avramchenko@sony.com, npiggin@gmail.com, hch@infradead.org, urezki@gmail.com, akpm@linux-foundation.org From: Andrew Morton Subject: + mm-vmalloc-initialize-vas-list-node-after-unlink.patch added to mm-unstable branch Message-Id: <20220607224205.B368FC3411C@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: mm/vmalloc: initialize VA's list node after unlink has been added to the -mm mm-unstable branch. Its filename is mm-vmalloc-initialize-vas-list-node-after-unlink.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-vmalloc-initialize-vas-list-node-after-unlink.patch This patch will later appear in the mm-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: "Uladzislau Rezki (Sony)" Subject: mm/vmalloc: initialize VA's list node after unlink Date: Tue, 7 Jun 2022 11:34:47 +0200 A vmap_area can travel between different places. For example attached/detached to/from different rb-trees. In order to prevent fancy bugs, initialize a VA's list node after it is removed from the list, so it pairs with VA's rb_node which is also initialized. There is no functional change as a result of this patch. Link: https://lkml.kernel.org/r/20220607093449.3100-4-urezki@gmail.com Signed-off-by: Uladzislau Rezki (Sony) Cc: Christoph Hellwig Cc: Matthew Wilcox Cc: Nicholas Piggin Cc: Oleksiy Avramchenko Signed-off-by: Andrew Morton --- mm/vmalloc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/mm/vmalloc.c~mm-vmalloc-initialize-vas-list-node-after-unlink +++ a/mm/vmalloc.c @@ -977,7 +977,7 @@ __unlink_va(struct vmap_area *va, struct else rb_erase(&va->rb_node, root); - list_del(&va->list); + list_del_init(&va->list); RB_CLEAR_NODE(&va->rb_node); } _ Patches currently in -mm which might be from urezki@gmail.com are mm-vmalloc-make-link_va-unlink_va-common-to-different-rb_root.patch mm-vmalloc-extend-__alloc_vmap_area-with-extra-arguments.patch mm-vmalloc-initialize-vas-list-node-after-unlink.patch mm-vmalloc-extend-__find_vmap_area-with-one-more-argument.patch lib-test_vmalloc-switch-to-prandom_u32.patch