[PATCH] VM: add capabilites check to set_zone_reclaim

[linux-2.6] / mm / vmscan.c

diff --git a/mm/vmscan.c b/mm/vmscan.c
index 1fa312a8db7751aee563a9c6affaa0e1aa26007f..ab631a3c62c3c1ffefa41cc510b5889e5ceb21ca 100644 (file)
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -972,7 +972,7 @@ int try_to_free_pages(struct zone **zones, unsigned int gfp_mask)
                 * writeout.  So in laptop mode, write out the whole world.
                 */
                if (total_scanned > sc.swap_cluster_max + sc.swap_cluster_max/2) {
-                       wakeup_bdflush(laptop_mode ? 0 : total_scanned);
+                       wakeup_pdflush(laptop_mode ? 0 : total_scanned);
                        sc.may_writepage = 1;
                }
 
@@ -1375,6 +1375,9 @@ asmlinkage long sys_set_zone_reclaim(unsigned int node, unsigned int zone,
        struct zone *z;
        int i;
 
+       if (!capable(CAP_SYS_ADMIN))
+               return -EACCES;
+
        if (node >= MAX_NUMNODES || !node_online(node))
                return -EINVAL;