From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jens Axboe Subject: Re: [patch] btrfs: fix inode rbtree corruption Date: Fri, 21 Aug 2009 08:20:16 +0200 Message-ID: <20090821062015.GS12579@kernel.dk> References: <3d0408630908181156l16ccbc92p529f38cf622949cb@mail.gmail.com> <20090818211910.GR12579@kernel.dk> <20090819084530.GD25721@wotan.suse.de> <20090819084658.GT12579@kernel.dk> <20090819085208.GF25721@wotan.suse.de> <20090819085906.GV12579@kernel.dk> <20090820132346.GN25721@wotan.suse.de> <3d0408630908200651i4bfbf0ebk6b18975e1a06da7e@mail.gmail.com> <20090820220736.GQ12579@kernel.dk> <3d0408630908201755x6f59dabay7011775954874d44@mail.gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Cc: Nick Piggin , Chris Mason , linux-btrfs@vger.kernel.org To: "Yan, Zheng " Return-path: In-Reply-To: <3d0408630908201755x6f59dabay7011775954874d44@mail.gmail.com> List-ID: On Fri, Aug 21 2009, Yan, Zheng wrote: > 2009/8/21 Jens Axboe : > > On Thu, Aug 20 2009, Yan, Zheng =A0wrote: > >> 2009/8/20 Nick Piggin : > >> > On Wed, Aug 19, 2009 at 10:59:07AM +0200, Jens Axboe wrote: > >> >> On Wed, Aug 19 2009, Nick Piggin wrote: > >> >> > On Wed, Aug 19, 2009 at 10:46:59AM +0200, Jens Axboe wrote: > >> >> > > On Wed, Aug 19 2009, Nick Piggin wrote: > >> >> > > > See my other reply. It *can* work with key aliases, but t= his particular > >> >> > > > code does not. > >> >> > > > > >> >> > > > It is pretty easy obviously to put in duplicates because = the rbtree > >> >> > > > code doesn't know about keys, but if we do this then it l= ooks like > >> >> > > > it might cause the search code to miss some valid inodes = and instead > >> >> > > > return freeing inodes -- so you'd also have to look at th= at and update > >> >> > > > it which is why I didn't go down this route.. > >> >> > > > >> >> > > Mine was just a generic statement, I didn't read the btrfs = code (hence > >> >> > > my comment about potential lookup bug, if you allow aliases= you have to > >> >> > > be careful). > >> >> > > >> >> > Ah ok. Well yeah in this case btrfs is definitely wrong in th= e way it > >> >> > tried to insert aliases. > >> >> > >> >> I looked at the actual problem now and I agree, it cannot work = that way. > >> >> I don't know if Linus is planning another -rc, we should probab= ly get > >> >> this upstream sooner rather than later. Chris is away this week= , so if > >> >> we can get Yan to agree on this patch as well, I'll submit it. > >> > I think the first patch I submitted was agreed? > >> > > >> > >> Of course, thank you. > > Yan, are you sending this upstream? >=20 > No. Jens, please submit it. Thanks Will do. Can I add your acked-by? --=20 Jens Axboe -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" = in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html