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-rw-r--r--mm/page_alloc.c15
1 files changed, 14 insertions, 1 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index d7f5bc8..ce63d60 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -2732,8 +2732,21 @@ __alloc_pages_may_oom(gfp_t gfp_mask, unsigned int order,
goto out;
}
/* Exhausted what can be done so it's blamo time */
- if (out_of_memory(&oc) || WARN_ON_ONCE(gfp_mask & __GFP_NOFAIL))
+ if (out_of_memory(&oc) || WARN_ON_ONCE(gfp_mask & __GFP_NOFAIL)) {
*did_some_progress = 1;
+
+ if (gfp_mask & __GFP_NOFAIL) {
+ page = get_page_from_freelist(gfp_mask, order,
+ ALLOC_NO_WATERMARKS|ALLOC_CPUSET, ac);
+ /*
+ * fallback to ignore cpuset restriction if our nodes
+ * are depleted
+ */
+ if (!page)
+ page = get_page_from_freelist(gfp_mask, order,
+ ALLOC_NO_WATERMARKS, ac);
+ }
+ }
out:
mutex_unlock(&oom_lock);
return page;
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