Pull sim-fixes into release branch

[linux-2.6] / mm / page_alloc.c

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 14d7032c1d120b12ee1d9c9c6d1d8cadfb8b1edf..c5823c395f7145f2a66ef3ffd11af836c294845f 100644 (file)
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -335,7 +335,7 @@ static inline void free_pages_check(const char *function, struct page *page)
 /*
  * Frees a list of pages. 
  * Assumes all pages on list are in same zone, and of same order.
- * count is the number of pages to free, or 0 for all on the list.
+ * count is the number of pages to free.
  *
  * If the zone was previously in an "all pages pinned" state then look to
  * see if this freeing clears that state.
@@ -806,11 +806,14 @@ __alloc_pages(unsigned int __nocast gfp_mask, unsigned int order,
        classzone_idx = zone_idx(zones[0]);
 
 restart:
-       /* Go through the zonelist once, looking for a zone with enough free */
+       /*
+        * Go through the zonelist once, looking for a zone with enough free.
+        * See also cpuset_zone_allowed() comment in kernel/cpuset.c.
+        */
        for (i = 0; (z = zones[i]) != NULL; i++) {
                int do_reclaim = should_reclaim_zone(z, gfp_mask);
 
-               if (!cpuset_zone_allowed(z))
+               if (!cpuset_zone_allowed(z, __GFP_HARDWALL))
                        continue;
 
                /*
@@ -845,6 +848,7 @@ zone_reclaim_retry:
         *
         * This is the last chance, in general, before the goto nopage.
         * Ignore cpuset if GFP_ATOMIC (!wait) rather than fail alloc.
+        * See also cpuset_zone_allowed() comment in kernel/cpuset.c.
         */
        for (i = 0; (z = zones[i]) != NULL; i++) {
                if (!zone_watermark_ok(z, order, z->pages_min,
@@ -852,7 +856,7 @@ zone_reclaim_retry:
                                       gfp_mask & __GFP_HIGH))
                        continue;
 
-               if (wait && !cpuset_zone_allowed(z))
+               if (wait && !cpuset_zone_allowed(z, gfp_mask))
                        continue;
 
                page = buffered_rmqueue(z, order, gfp_mask);
@@ -867,7 +871,7 @@ zone_reclaim_retry:
                if (!(gfp_mask & __GFP_NOMEMALLOC)) {
                        /* go through the zonelist yet again, ignoring mins */
                        for (i = 0; (z = zones[i]) != NULL; i++) {
-                               if (!cpuset_zone_allowed(z))
+                               if (!cpuset_zone_allowed(z, gfp_mask))
                                        continue;
                                page = buffered_rmqueue(z, order, gfp_mask);
                                if (page)
@@ -903,7 +907,7 @@ rebalance:
                                               gfp_mask & __GFP_HIGH))
                                continue;
 
-                       if (!cpuset_zone_allowed(z))
+                       if (!cpuset_zone_allowed(z, gfp_mask))
                                continue;
 
                        page = buffered_rmqueue(z, order, gfp_mask);
@@ -922,7 +926,7 @@ rebalance:
                                               classzone_idx, 0, 0))
                                continue;
 
-                       if (!cpuset_zone_allowed(z))
+                       if (!cpuset_zone_allowed(z, __GFP_HARDWALL))
                                continue;
 
                        page = buffered_rmqueue(z, order, gfp_mask);