* [PATCH 12/26] pvr2fb: Convert pvr2fb_write() to use get_user_pages_fast()
[not found] <1380724087-13927-1-git-send-email-jack@suse.cz>
@ 2013-10-02 14:27 ` Jan Kara
0 siblings, 0 replies; only message in thread
From: Jan Kara @ 2013-10-02 14:27 UTC (permalink / raw)
To: LKML
Cc: linux-mm, Jan Kara, linux-fbdev, Tomi Valkeinen,
Jean-Christophe Plagniol-Villard
CC: linux-fbdev@vger.kernel.org
CC: Tomi Valkeinen <tomi.valkeinen@ti.com>
CC: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Signed-off-by: Jan Kara <jack@suse.cz>
---
drivers/video/pvr2fb.c | 6 +-----
1 file changed, 1 insertion(+), 5 deletions(-)
diff --git a/drivers/video/pvr2fb.c b/drivers/video/pvr2fb.c
index df07860563e6..31e1345a88a8 100644
--- a/drivers/video/pvr2fb.c
+++ b/drivers/video/pvr2fb.c
@@ -686,11 +686,7 @@ static ssize_t pvr2fb_write(struct fb_info *info, const char *buf,
if (!pages)
return -ENOMEM;
- down_read(¤t->mm->mmap_sem);
- ret = get_user_pages(current, current->mm, (unsigned long)buf,
- nr_pages, WRITE, 0, pages, NULL);
- up_read(¤t->mm->mmap_sem);
-
+ ret = get_user_pages_fast((unsigned long)buf, nr_pages, WRITE, pages);
if (ret < nr_pages) {
nr_pages = ret;
ret = -EINVAL;
--
1.8.1.4
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2013-10-02 14:27 ` [PATCH 12/26] pvr2fb: Convert pvr2fb_write() to use get_user_pages_fast() Jan Kara
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