[PATCH 4/7] mm: defer vmalloc from atomic context

[Christoph Hellwig]

We want to be able to use a sleeping lock for freeing vmap to keep
latency down.  For this we need to use the deferred vfree mechanisms
no only from interrupt, but from any atomic context.

Signed-off-by: Christoph Hellwig <hch@xxxxxx>
---
 mm/vmalloc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index a4e2cec..bcc1a64 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -1509,7 +1509,7 @@ void vfree(const void *addr)
 
 	if (!addr)
 		return;
-	if (unlikely(in_interrupt())) {
+	if (unlikely(in_atomic())) {
 		struct vfree_deferred *p = this_cpu_ptr(&vfree_deferred);
 		if (llist_add((struct llist_node *)addr, &p->list))
 			schedule_work(&p->wq);
-- 
2.1.4