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-rw-r--r--mm/page_alloc.c30
1 files changed, 21 insertions, 9 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 8be37bcda0b2..4615531dcf66 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -2130,16 +2130,13 @@ __alloc_pages_direct_compact(gfp_t gfp_mask, unsigned int order,
}
#endif /* CONFIG_COMPACTION */
-/* The really slow allocator path where we enter direct reclaim */
-static inline struct page *
-__alloc_pages_direct_reclaim(gfp_t gfp_mask, unsigned int order,
- struct zonelist *zonelist, enum zone_type high_zoneidx,
- nodemask_t *nodemask, int alloc_flags, struct zone *preferred_zone,
- int migratetype, unsigned long *did_some_progress)
+/* Perform direct synchronous page reclaim */
+static int
+__perform_reclaim(gfp_t gfp_mask, unsigned int order, struct zonelist *zonelist,
+ nodemask_t *nodemask)
{
- struct page *page = NULL;
struct reclaim_state reclaim_state;
- bool drained = false;
+ int progress;
cond_resched();
@@ -2150,7 +2147,7 @@ __alloc_pages_direct_reclaim(gfp_t gfp_mask, unsigned int order,
reclaim_state.reclaimed_slab = 0;
current->reclaim_state = &reclaim_state;
- *did_some_progress = try_to_free_pages(zonelist, order, gfp_mask, nodemask);
+ progress = try_to_free_pages(zonelist, order, gfp_mask, nodemask);
current->reclaim_state = NULL;
lockdep_clear_current_reclaim_state();
@@ -2158,6 +2155,21 @@ __alloc_pages_direct_reclaim(gfp_t gfp_mask, unsigned int order,
cond_resched();
+ return progress;
+}
+
+/* The really slow allocator path where we enter direct reclaim */
+static inline struct page *
+__alloc_pages_direct_reclaim(gfp_t gfp_mask, unsigned int order,
+ struct zonelist *zonelist, enum zone_type high_zoneidx,
+ nodemask_t *nodemask, int alloc_flags, struct zone *preferred_zone,
+ int migratetype, unsigned long *did_some_progress)
+{
+ struct page *page = NULL;
+ bool drained = false;
+
+ *did_some_progress = __perform_reclaim(gfp_mask, order, zonelist,
+ nodemask);
if (unlikely(!(*did_some_progress)))
return NULL;