Use BUG_ON(in_interrupt()) in zs_map_object(). Calling this function from IRQ is a bug, because we use per-CPU mappings and interrupt may corrupt those buffers.
Signed-off-by: Sergey Senozhatsky <[email protected]> --- mm/zsmalloc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c index 7c38e850a8fc..685049a9048d 100644 --- a/mm/zsmalloc.c +++ b/mm/zsmalloc.c @@ -1349,7 +1349,7 @@ void *zs_map_object(struct zs_pool *pool, unsigned long handle, * pools/users, we can't allow mapping in interrupt context * because it can corrupt another users mappings. */ - WARN_ON_ONCE(in_interrupt()); + BUG_ON(in_interrupt()); /* From now on, migration cannot move the object */ pin_tag(handle); -- 2.14.1
