From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pa0-f43.google.com (mail-pa0-f43.google.com [209.85.220.43]) by kanga.kvack.org (Postfix) with ESMTP id C4F056B0032 for ; Sat, 5 Oct 2013 02:28:11 -0400 (EDT) Received: by mail-pa0-f43.google.com with SMTP id hz1so5057703pad.30 for ; Fri, 04 Oct 2013 23:28:11 -0700 (PDT) From: "Dilger, Andreas" Subject: Re: [PATCH 10/26] lustre: Convert ll_get_user_pages() to use get_user_pages_fast() Date: Sat, 5 Oct 2013 06:27:43 +0000 Message-ID: In-Reply-To: <1380724087-13927-11-git-send-email-jack@suse.cz> Content-Language: en-US Content-Type: text/plain; charset="us-ascii" Content-ID: <78094AFAA7D9084EB3F62453362B75D3@intel.com> Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Sender: owner-linux-mm@kvack.org List-ID: To: Jan Kara , LKML Cc: "linux-mm@kvack.org" , Greg Kroah-Hartman , Peng Tao , "hpdd-discuss@lists.01.org" On 2013/10/02 8:27 AM, "Jan Kara" wrote: >CC: Greg Kroah-Hartman >CC: Peng Tao >CC: Andreas Dilger >CC: hpdd-discuss@lists.01.org >Signed-off-by: Jan Kara Acked-by: Andreas Dilger >--- > drivers/staging/lustre/lustre/llite/rw26.c | 7 ++----- > 1 file changed, 2 insertions(+), 5 deletions(-) > >diff --git a/drivers/staging/lustre/lustre/llite/rw26.c >b/drivers/staging/lustre/lustre/llite/rw26.c >index 96c29ad2fc8c..7e3e0967993b 100644 >--- a/drivers/staging/lustre/lustre/llite/rw26.c >+++ b/drivers/staging/lustre/lustre/llite/rw26.c >@@ -202,11 +202,8 @@ static inline int ll_get_user_pages(int rw, unsigned >long user_addr, >=20 > OBD_ALLOC_LARGE(*pages, *max_pages * sizeof(**pages)); > if (*pages) { >- down_read(¤t->mm->mmap_sem); >- result =3D get_user_pages(current, current->mm, user_addr, >- *max_pages, (rw =3D=3D READ), 0, *pages, >- NULL); >- up_read(¤t->mm->mmap_sem); >+ result =3D get_user_pages_fast(user_addr, *max_pages, >+ (rw =3D=3D READ), *pages); > if (unlikely(result <=3D 0)) > OBD_FREE_LARGE(*pages, *max_pages * sizeof(**pages)); > } Cheers, Andreas --=20 Andreas Dilger Lustre Software Architect Intel High Performance Data Division -- 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