From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Mon, 9 Jun 2008 01:32:04 -0700 From: Andrew Morton Subject: Re: [patch 7/7] powerpc: lockless get_user_pages_fast Message-Id: <20080609013204.7c291b68.akpm@linux-foundation.org> In-Reply-To: <20080605094826.128415000@nick.local0.net> References: <20080605094300.295184000@nick.local0.net> <20080605094826.128415000@nick.local0.net> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: npiggin@suse.de Cc: torvalds@linux-foundation.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, benh@kernel.crashing.org, paulus@samba.org List-ID: On Thu, 05 Jun 2008 19:43:07 +1000 npiggin@suse.de wrote: > Implement lockless get_user_pages_fast for powerpc. Page table existence is > guaranteed with RCU, and speculative page references are used to take a > reference to the pages without having a prior existence guarantee on them. > arch/powerpc/mm/gup.c: In function `get_user_pages_fast': arch/powerpc/mm/gup.c:156: error: `SLICE_LOW_TOP' undeclared (first use in this function) arch/powerpc/mm/gup.c:156: error: (Each undeclared identifier is reported only once arch/powerpc/mm/gup.c:156: error: for each function it appears in.) arch/powerpc/mm/gup.c:178: error: implicit declaration of function `get_slice_psize' arch/powerpc/mm/gup.c:178: error: `mmu_huge_psize' undeclared (first use in this function) arch/powerpc/mm/gup.c:182: error: implicit declaration of function `huge_pte_offset' arch/powerpc/mm/gup.c:182: warning: assignment makes pointer from integer without a cast with http://userweb.kernel.org/~akpm/config-g5.txt I don't immediately know why - adding asm/page.h to gup.c doesn't help. I'm suspecting a recursive include problem somewhere. I'll drop it, sorry - too much other stuff to fix over here. -- 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