From mboxrd@z Thu Jan 1 00:00:00 1970 From: Peter Zijlstra Date: Sat, 12 Aug 2006 16:14:15 +0200 Message-Id: <20060812141415.30842.78695.sendpatchset@lappy> Subject: [RFC][PATCH 0/4] VM deadlock prevention -v4 Sender: owner-linux-mm@kvack.org Return-Path: To: linux-mm@kvack.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org Cc: Indan Zupancic , Peter Zijlstra , Evgeniy Polyakov , Daniel Phillips , Rik van Riel , David Miller List-ID: Hi, here the latest effort, it includes a whole new trivial allocator with a horrid name and an almost full rewrite of the deadlock prevention core. This version does not do anything per device and hence does not depend on the new netdev_alloc_skb() API. The reason to add a second allocator to the receive side is twofold: 1) it allows easy detection of the memory pressure / OOM situation; 2) it allows the receive path to be unbounded and go at full speed when resources permit. The choice of using the global memalloc reserve as a mempool makes that the new allocator has to release pages as soon as possible; if we were to hoard pages in the allocator the memalloc reserve would not get replenished readily. Peter -- 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