r8169: allocate with GFP_KERNEL flag when able to sleep

[net-next-2.6.git] / mm / page_alloc.c

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index b2d21e06d45d0bee493d94baafa1d4027f38b859..a8cfa9cc6e86e5d6912a39bc3f5c9d18fb97b7cf 100644 (file)
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -1847,6 +1847,7 @@ __alloc_pages_direct_reclaim(gfp_t gfp_mask, unsigned int order,
        struct page *page = NULL;
        struct reclaim_state reclaim_state;
        struct task_struct *p = current;
+       bool drained = false;
 
        cond_resched();
 
@@ -1865,14 +1866,25 @@ __alloc_pages_direct_reclaim(gfp_t gfp_mask, unsigned int order,
 
        cond_resched();
 
-       if (order != 0)
-               drain_all_pages();
+       if (unlikely(!(*did_some_progress)))
+               return NULL;
 
-       if (likely(*did_some_progress))
-               page = get_page_from_freelist(gfp_mask, nodemask, order,
+retry:
+       page = get_page_from_freelist(gfp_mask, nodemask, order,
                                        zonelist, high_zoneidx,
                                        alloc_flags, preferred_zone,
                                        migratetype);
+
+       /*
+        * If an allocation failed after direct reclaim, it could be because
+        * pages are pinned on the per-cpu lists. Drain them and try again
+        */
+       if (!page && !drained) {
+               drain_all_pages();
+               drained = true;
+               goto retry;
+       }
+
        return page;
 }