ceph: fix num_pages_free accounting in pagelist

Decrement the free page counter when removing a page from the free_list.

Signed-off-by: Sage Weil <sage@newdream.net>

diff --git a/net/ceph/pagelist.c b/net/ceph/pagelist.c
index b8cbc456d0bbe0d68d946fa2d73891ce8064a6d3..13cb409a7bba13a2dd248c7a7dd25b9c00253370 100644 (file)
--- a/net/ceph/pagelist.c
+++ b/net/ceph/pagelist.c
@@ -37,6 +37,7 @@ static int ceph_pagelist_addpage(struct ceph_pagelist *pl)
        } else {
                page = list_first_entry(&pl->free_list, struct page, lru);
                list_del(&page->lru);
+               --pl->num_pages_free;
        }
        if (!page)
                return -ENOMEM;