[PATCH v6 1/2] mm/vmalloc: fix show vmap_area information race with vmap_area tear down

2013-09-17 Thread Wanpeng Li
Changelog: *v4 -> v5: return directly for !VM_VM_AREA case and remove (VM_LAZY_FREE | VM_LAZY_FREEING) check *v5 -> v6: add KOSAKI's ack There is a race window between vmap_area tear down and show vmap_area information. AB

[PATCH v6 1/2] mm/vmalloc: fix show vmap_area information race with vmap_area tear down

2013-09-17 Thread Wanpeng Li
Changelog: *v4 - v5: return directly for !VM_VM_AREA case and remove (VM_LAZY_FREE | VM_LAZY_FREEING) check *v5 - v6: add KOSAKI's ack There is a race window between vmap_area tear down and show vmap_area information. AB