From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wr0-f198.google.com (mail-wr0-f198.google.com [209.85.128.198]) by kanga.kvack.org (Postfix) with ESMTP id E0FB76B0261 for ; Tue, 19 Dec 2017 10:57:09 -0500 (EST) Received: by mail-wr0-f198.google.com with SMTP id g12so7662962wra.2 for ; Tue, 19 Dec 2017 07:57:09 -0800 (PST) Received: from mx2.suse.de (mx2.suse.de. [195.135.220.15]) by mx.google.com with ESMTPS id t134si1460846wmt.108.2017.12.19.07.57.08 for (version=TLS1 cipher=AES128-SHA bits=128/128); Tue, 19 Dec 2017 07:57:08 -0800 (PST) Date: Tue, 19 Dec 2017 16:57:07 +0100 From: Michal Hocko Subject: Re: [resend PATCH 0/2] fix VFS register_shrinker fixup Message-ID: <20171219155707.GB2787@dhcp22.suse.cz> References: <20171219132844.28354-1-mhocko@kernel.org> <20171219151915.GA2787@dhcp22.suse.cz> <20171219153418.GR21978@ZenIV.linux.org.uk> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20171219153418.GR21978@ZenIV.linux.org.uk> Sender: owner-linux-mm@kvack.org List-ID: To: Al Viro Cc: Andrew Morton , Tetsuo Handa , Aliaksei Karaliou , linux-mm@kvack.org, linux-fsdevel@vger.kernel.org, LKML On Tue 19-12-17 15:34:19, Al Viro wrote: > On Tue, Dec 19, 2017 at 04:19:15PM +0100, Michal Hocko wrote: > > Dohh, I have missed resend by Tetsuo http://lkml.kernel.org/r/1513596701-4518-1-git-send-email-penguin-kernel@I-love.SAKURA.ne.jp > > (thanks for dropping me from the CC). Al seeemed to take the patch. We > > still need patch 2. Al, are you going to take it from this thread or you > > are going to go your way? > > Umm... git log for-linus in vfs.git since yesterday: OK, thanks! > commit 9ee332d99e4d5a97548943b81c54668450ce641b > Author: Al Viro > Date: Mon Dec 18 15:05:07 2017 -0500 > > sget(): handle failures of register_shrinker() > > Signed-off-by: Al Viro > > commit bb422a738f6566f7439cd347d54e321e4fe92a9f > Author: Tetsuo Handa > Date: Mon Dec 18 20:31:41 2017 +0900 > > mm,vmscan: Make unregister_shrinker() no-op if register_shrinker() failed. > > Syzbot caught an oops at unregister_shrinker() because combination of > commit 1d3d4437eae1bb29 ("vmscan: per-node deferred work") and fault > injection made register_shrinker() fail and the caller of > register_shrinker() did not check for failure. > .... -- Michal Hocko SUSE Labs -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org