From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pd0-f181.google.com (mail-pd0-f181.google.com [209.85.192.181]) by kanga.kvack.org (Postfix) with ESMTP id 676E0900001 for ; Wed, 2 Oct 2013 10:29:04 -0400 (EDT) Received: by mail-pd0-f181.google.com with SMTP id g10so974669pdj.40 for ; Wed, 02 Oct 2013 07:29:04 -0700 (PDT) From: Jan Kara Subject: [PATCH 09/26] crystalhd: Convert crystalhd_map_dio() to use get_user_pages_fast() Date: Wed, 2 Oct 2013 16:27:50 +0200 Message-Id: <1380724087-13927-10-git-send-email-jack@suse.cz> In-Reply-To: <1380724087-13927-1-git-send-email-jack@suse.cz> References: <1380724087-13927-1-git-send-email-jack@suse.cz> Sender: owner-linux-mm@kvack.org List-ID: To: LKML Cc: linux-mm@kvack.org, Jan Kara , Naren Sankar , Jarod Wilson , Scott Davilla , Manu Abraham CC: Naren Sankar CC: Jarod Wilson CC: Scott Davilla CC: Manu Abraham Signed-off-by: Jan Kara --- drivers/staging/crystalhd/crystalhd_misc.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/drivers/staging/crystalhd/crystalhd_misc.c b/drivers/staging/crystalhd/crystalhd_misc.c index 51f698052aff..f2d350985e46 100644 --- a/drivers/staging/crystalhd/crystalhd_misc.c +++ b/drivers/staging/crystalhd/crystalhd_misc.c @@ -751,10 +751,7 @@ enum BC_STATUS crystalhd_map_dio(struct crystalhd_adp *adp, void *ubuff, } } - down_read(¤t->mm->mmap_sem); - res = get_user_pages(current, current->mm, uaddr, nr_pages, rw == READ, - 0, dio->pages, NULL); - up_read(¤t->mm->mmap_sem); + res = get_user_pages_fast(uaddr, nr_pages, rw == READ, dio->pages); /* Save for release..*/ dio->sig = crystalhd_dio_locked; -- 1.8.1.4 -- 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