Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757462Ab1CRUIt (ORCPT ); Fri, 18 Mar 2011 16:08:49 -0400 Received: from mail-ww0-f44.google.com ([74.125.82.44]:62609 "EHLO mail-ww0-f44.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756953Ab1CRUIn (ORCPT ); Fri, 18 Mar 2011 16:08:43 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=date:from:to:subject:message-id:references:mime-version :content-type:content-disposition:in-reply-to:user-agent; b=L4VjkcKO7XJD0YcBYwo4XTAufldct7GOHzuyC/Lpj5eiM+3zigwOE85nbDnBgO1iRw DirP6uHKN5Ijv2Gucz6d33ANpnNsgVUx4NrXg8KrOiBPONjPiIPJm7YK5RzYwlrSQHyf mJTZBeVC73O0lh9PCrIDhq0ceBLu/0qT60sC8= Date: Fri, 18 Mar 2011 20:09:22 +0000 From: Prasad Joshi To: linux@arm.linux.org.uk, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, prasadjoshi124@gmail.com, mitra@kqinfotech.com Subject: Re: [RFC][PATCH v3 21/22] mm, arm: add gfp flags variant of pmd and pte allocations Message-ID: <20110318200922.GV4746@prasad-kvm> References: <20110318195926.GL4746@prasad-kvm> <20110318200045.GM4746@prasad-kvm> <20110318200150.GN4746@prasad-kvm> <20110318200254.GO4746@prasad-kvm> <20110318200401.GP4746@prasad-kvm> <20110318200452.GQ4746@prasad-kvm> <20110318200547.GR4746@prasad-kvm> <20110318200638.GS4746@prasad-kvm> <20110318200731.GT4746@prasad-kvm> <20110318200825.GU4746@prasad-kvm> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20110318200825.GU4746@prasad-kvm> User-Agent: Mutt/1.5.20 (2009-06-14) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1998 Lines: 58 - Added __pmd_alloc_one, which is same as pmd_alloc_one, but has extra parameter to specify the allocation flag - Added __pte_alloc_one_kernel to allocate page using specified GFP flag - Changed pte_alloc_one_kernel to call __pte_alloc_one_kernel newly added function using GFP_KERNEL allocation flag - Helps in fixing the Bug 30702 Signed-off-by: Prasad Joshi Signed-off-by: Anand Mitra --- arch/arm/include/asm/pgalloc.h | 11 +++++++++-- 1 files changed, 9 insertions(+), 2 deletions(-) diff --git a/arch/arm/include/asm/pgalloc.h b/arch/arm/include/asm/pgalloc.h index 22de005..0696068 100644 --- a/arch/arm/include/asm/pgalloc.h +++ b/arch/arm/include/asm/pgalloc.h @@ -28,6 +28,7 @@ /* * Since we have only two-level page tables, these are trivial */ +#define __pmd_alloc_one(mm,addr,mask) ({ BUG(); ((pmd_t *)2); }) #define pmd_alloc_one(mm,addr) ({ BUG(); ((pmd_t *)2); }) #define pmd_free(mm, pmd) do { } while (0) #define pgd_populate(mm,pmd,pte) BUG() @@ -59,17 +60,23 @@ static inline void clean_pte_table(pte_t *pte) * +------------+ */ static inline pte_t * -pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr) +__pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr, gfp_t gfp_mask) { pte_t *pte; - pte = (pte_t *)__get_free_page(PGALLOC_GFP); + pte = (pte_t *)__get_free_page(gfp_mask | __GFP_NOTRACK | __GFP_ZERO); if (pte) clean_pte_table(pte); return pte; } +static inline pte_t * +pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr) +{ + return __pte_alloc_one_kernel(mm, addr, GFP_KERNEL | __GFP_REPEAT); +} + static inline pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long addr) { -- 1.7.0.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/