From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Tue, 10 Jun 2008 21:40:25 -0700 (PDT) From: Christoph Lameter Subject: Re: [patch 7/7] powerpc: lockless get_user_pages_fast In-Reply-To: <20080611031822.GA8228@wotan.suse.de> Message-ID: References: <20080605094300.295184000@nick.local0.net> <20080605094826.128415000@nick.local0.net> <20080611031822.GA8228@wotan.suse.de> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org Return-Path: To: Nick Piggin Cc: akpm@linux-foundation.org, torvalds@linux-foundation.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, benh@kernel.crashing.org, paulus@samba.org List-ID: On Wed, 11 Jun 2008, Nick Piggin wrote: > > This is reversing the modification to make get_page_unless_zero() usable > > with compound page heads. Will break the slab defrag patchset. > > Is the slab defrag patchset in -mm? Because you ignored my comment about > this change that assertions should not be weakened until required by the > actual patchset. I wanted to have these assertions be as strong as > possible for the lockless pagecache patchset. So you are worried about accidentally using get_page_unless_zero on a compound page? What would be wrong about that? -- 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