x86/smpboot: Init apic mapping before usage

[cascardo/linux.git] / mm / memcontrol.c

diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index ae052b5..0f870ba 100644 (file)
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -1917,6 +1917,15 @@ retry:
                     current->flags & PF_EXITING))
                goto force;
 
+       /*
+        * Prevent unbounded recursion when reclaim operations need to
+        * allocate memory. This might exceed the limits temporarily,
+        * but we prefer facilitating memory reclaim and getting back
+        * under the limit over triggering OOM kills in these cases.
+        */
+       if (unlikely(current->flags & PF_MEMALLOC))
+               goto force;
+
        if (unlikely(task_in_memcg_oom(current)))
                goto nomem;