From 5f1a1369e89e05baba1df72834c9b48cd1ce45e1 Mon Sep 17 00:00:00 2001
From: Jan Kara <jack@suse.cz>
Date: Wed, 2 Oct 2013 16:27:52 +0200
Subject: [PATCH] sep: Convert sep_lock_user_pages() to get_user_pages_fast()
CC: Mark Allyn <mark.a.allyn@intel.com>
CC: Jayant Mangalampalli <jayant.mangalampalli@intel.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/staging/sep/sep_main.c | 9 ++-------
1 file changed, 2 insertions(+), 7 deletions(-)
diff --git a/drivers/staging/sep/sep_main.c b/drivers/staging/sep/sep_main.c
index 6a98a208bbf2..11f5b2117457 100644
--- a/drivers/staging/sep/sep_main.c
+++ b/drivers/staging/sep/sep_main.c
@@ -1263,13 +1263,8 @@ static int sep_lock_user_pages(struct sep_device *sep,
}
/* Convert the application virtual address into a set of physical */
- down_read(¤t->mm->mmap_sem);
- result = get_user_pages(current, current->mm, app_virt_addr,
- num_pages,
- ((in_out_flag == SEP_DRIVER_IN_FLAG) ? 0 : 1),
- 0, page_array, NULL);
-
- up_read(¤t->mm->mmap_sem);
+ result = get_user_pages_fast(app_virt_addr, num_pages,
+ ((in_out_flag == SEP_DRIVER_IN_FLAG) ? 0 : 1), page_array);
/* Check the number of pages locked - if not all then exit with error */
if (result != num_pages) {