Commit 40612351 authored Oct 15, 2015 by David Hildenbrand Committed by Martin Schwidefsky Nov 27, 2015

s390: get_user_pages_fast() might sleep



Let's annotate it correctly, so we directly get a warning if
we ever were to use it in atomic/preempt_disable/spinlock environment.

Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

parent db1c4515

arch/s390/mm/gup.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -233,6 +233,7 @@ int get_user_pages_fast(unsigned long start, int nr_pages, int write,
		struct mm_struct *mm = current->mm;
		int nr, ret;

		might_sleep();
		start &= PAGE_MASK;
		nr = __get_user_pages_fast(start, nr_pages, write, pages);
		if (nr == nr_pages)