Commit cbb4f264 authored Jul 31, 2009 by Li Zefan Committed by Jens Axboe Jul 31, 2009

io context: fix ref counting



Commit d9c7d394
("block: prevent possible io_context->refcount overflow") mistakenly
changed atomic_inc(&ioc->nr_tasks) to atomic_long_inc(&ioc->refcount).

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Acked-by: Nikanth Karthikesan <knikanth@suse.de>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

parent 56ad1740

include/linux/iocontext.h

+1 −1

Original line number	Diff line number	Diff line
		@@ -92,7 +92,7 @@ static inline struct io_context ioc_task_link(struct io_context ioc)
		* a race).
		*/
		if (ioc && atomic_long_inc_not_zero(&ioc->refcount)) {
		atomic_long_inc(&ioc->refcount);
		atomic_inc(&ioc->nr_tasks);
		return ioc;
		}