powerpc/pseries: Flush lazy kernel mappings after unplug operations

[linux-beck.git] / arch / powerpc / platforms / pseries / hotplug-memory.c

diff --git a/arch/powerpc/platforms/pseries/hotplug-memory.c b/arch/powerpc/platforms/pseries/hotplug-memory.c
index 9b21ee68ea5070d4e04eb1392505b913ac7f4cf2..01e7b5bb3c1d3853469694bf00235555108321f6 100644 (file)
--- a/arch/powerpc/platforms/pseries/hotplug-memory.c
+++ b/arch/powerpc/platforms/pseries/hotplug-memory.c
@@ -11,6 +11,7 @@
 
 #include <linux/of.h>
 #include <linux/lmb.h>
+#include <linux/vmalloc.h>
 #include <asm/firmware.h>
 #include <asm/machdep.h>
 #include <asm/pSeries_reconfig.h>
@@ -54,6 +55,12 @@ static int pseries_remove_lmb(unsigned long base, unsigned int lmb_size)
         */
        start = (unsigned long)__va(base);
        ret = remove_section_mapping(start, start + lmb_size);
+
+       /* Ensure all vmalloc mappings are flushed in case they also
+        * hit that section of memory
+        */
+       vm_unmap_aliases();
+
        return ret;
 }