[PATCH 15/26] ceph: Convert ceph_get_direct_page_vector() to get_user_pages_fast()

[Jan Kara]

CC: Sage Weil <s...@inktank.com>
CC: ceph-de...@vger.kernel.org
Signed-off-by: Jan Kara <j...@suse.cz>
---
 net/ceph/pagevec.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/net/ceph/pagevec.c b/net/ceph/pagevec.c
index 815a2249cfa9..1b1ac7887767 100644
--- a/net/ceph/pagevec.c
+++ b/net/ceph/pagevec.c
@@ -23,17 +23,15 @@ struct page **ceph_get_direct_page_vector(const void __user 
*data,
        if (!pages)
                return ERR_PTR(-ENOMEM);
 
-       down_read(&current->mm->mmap_sem);
        while (got < num_pages) {
-               rc = get_user_pages(current, current->mm,
+               rc = get_user_pages_fast(
                    (unsigned long)data + ((unsigned long)got * PAGE_SIZE),
-                   num_pages - got, write_page, 0, pages + got, NULL);
+                   num_pages - got, write_page, pages + got);
                if (rc < 0)
                        break;
                BUG_ON(rc == 0);
                got += rc;
        }
-       up_read(&current->mm->mmap_sem);
        if (rc < 0)
                goto fail;
        return pages;
-- 
1.8.1.4

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