fuse: use get_user_pages_fast()

Replace uses of get_user_pages() with get_user_pages_fast().  It looks
nicer and should be faster in most cases.

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>

1 files changed, 1 insertions, 4 deletions

diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index eb7e9423691f..4623018e104a 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -551,10 +551,7 @@ static int fuse_copy_fill(struct fuse_copy_state *cs)
 		cs->iov++;
 		cs->nr_segs--;
 	}
-	down_read(&current->mm->mmap_sem);
-	err = get_user_pages(current, current->mm, cs->addr, 1, cs->write, 0,
-			     &cs->pg, NULL);
-	up_read(&current->mm->mmap_sem);
+	err = get_user_pages_fast(cs->addr, 1, cs->write, &cs->pg);
 	if (err < 0)
 		return err;
 	BUG_ON(err != 1);