From mboxrd@z Thu Jan 1 00:00:00 1970 Subject: Re: [PATCH 03/33] mm: slub: add knowledge of reserve pages From: Peter Zijlstra In-Reply-To: <1193835258.27652.199.camel@twins> References: <20071030160401.296770000@chello.nl> <200710312146.03351.nickpiggin@yahoo.com.au> <1193833072.27652.167.camel@twins> <200710312225.07249.nickpiggin@yahoo.com.au> <1193835258.27652.199.camel@twins> Content-Type: text/plain Date: Wed, 31 Oct 2007 14:08:43 +0100 Message-Id: <1193836123.27652.209.camel@twins> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: Nick Piggin Cc: Linus Torvalds , Andrew Morton , linux-kernel@vger.kernel.org, linux-mm@kvack.org, netdev@vger.kernel.org, trond.myklebust@fys.uio.no List-ID: On Wed, 2007-10-31 at 13:54 +0100, Peter Zijlstra wrote: > On Wed, 2007-10-31 at 22:25 +1100, Nick Piggin wrote: > > What I'm saying is that the slab allocator slowpath should always > > just check watermarks against the current task. Instead of this > > ->reserve stuff. > > So what you say is to allocate a slab every time we take the slow path, > even when we already have one? BTW, a task that does not have reserve permissions will already attempt to allocate a new slab - this is done to probe the current watermarks. If this succeeds the reserve status is lifted. -- 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