mm, vmalloc: use __GFP_HIGHMEM implicitly

[sfrench/cifs-2.6.git] / mm / slab.c

diff --git a/mm/slab.c b/mm/slab.c
index 807d86c769088681b47f41c0cc0a721307bd16c1..1880d482a0cbeb0174c9a55d45b842ab2d36685f 100644 (file)
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -3879,7 +3879,12 @@ static int __do_tune_cpucache(struct kmem_cache *cachep, int limit,
 
        prev = cachep->cpu_cache;
        cachep->cpu_cache = cpu_cache;
-       kick_all_cpus_sync();
+       /*
+        * Without a previous cpu_cache there's no need to synchronize remote
+        * cpus, so skip the IPIs.
+        */
+       if (prev)
+               kick_all_cpus_sync();
 
        check_irq_on();
        cachep->batchcount = batchcount;