ceph: use release_pages() directly

release_pages() has been available to modules since Oct, 2010,
when commit 0be8557bcd34 ("fuse: use release_pages()") added
EXPORT_SYMBOL(release_pages). However, this ceph code was still
using a workaround.

Remove the workaround, and call release_pages() directly.

Signed-off-by: John Hubbard <jhubbard@nvidia.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>

diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c
index 9efd519267929d41ccdb21bdfda2061ec8135180..7ab6166011418b6deaedb35a927ee34af3d47a1a 100644 (file)
--- a/fs/ceph/addr.c
+++ b/fs/ceph/addr.c
@@ -684,23 +684,6 @@ static int ceph_writepage(struct page *page, struct writeback_control *wbc)
        return err;
 }
 
-/*
- * lame release_pages helper.  release_pages() isn't exported to
- * modules.
- */
-static void ceph_release_pages(struct page **pages, int num)
-{
-       struct pagevec pvec;
-       int i;
-
-       pagevec_init(&pvec);
-       for (i = 0; i < num; i++) {
-               if (pagevec_add(&pvec, pages[i]) == 0)
-                       pagevec_release(&pvec);
-       }
-       pagevec_release(&pvec);
-}
-
 /*
  * async writeback completion handler.
  *
@@ -776,7 +759,7 @@ static void writepages_finish(struct ceph_osd_request *req)
                dout("writepages_finish %p wrote %llu bytes cleaned %d pages\n",
                     inode, osd_data->length, rc >= 0 ? num_pages : 0);
 
-               ceph_release_pages(osd_data->pages, num_pages);
+               release_pages(osd_data->pages, num_pages);
        }
 
        ceph_put_wrbuffer_cap_refs(ci, total_pages, snapc);