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>

1 files changed, 1 insertions, 0 deletions

diff --git a/net/ceph/pagelist.c b/net/ceph/pagelist.c
index b8cbc456d0b..13cb409a7bb 100644
--- 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;