path: root/block/blk-mq.h
diff options
authorJens Axboe <>2014-05-21 13:59:08 -0600
committerJens Axboe <>2014-05-21 13:59:08 -0600
commite814e71ba4a6e1d7509b0f4b1928365ea650cace (patch)
tree0db6c8a94340addf1f8cab4c4b761bca8df9ab11 /block/blk-mq.h
parentda41a589f52464e24ddefe76814ee35bfb07950c (diff)
blk-mq: allow the hctx cpu hotplug notifier to return errors
Prepare this for the next patch which adds more smarts in the plugging logic, so that we can save some memory. Signed-off-by: Jens Axboe <>
Diffstat (limited to 'block/blk-mq.h')
1 files changed, 1 insertions, 1 deletions
diff --git a/block/blk-mq.h b/block/blk-mq.h
index 7db4fe4bd002..491dbd4e93f5 100644
--- a/block/blk-mq.h
+++ b/block/blk-mq.h
@@ -39,7 +39,7 @@ int blk_mq_update_nr_requests(struct request_queue *q, unsigned int nr);
struct blk_mq_cpu_notifier;
void blk_mq_init_cpu_notifier(struct blk_mq_cpu_notifier *notifier,
- void (*fn)(void *, unsigned long, unsigned int),
+ int (*fn)(void *, unsigned long, unsigned int),
void *data);
void blk_mq_register_cpu_notifier(struct blk_mq_cpu_notifier *notifier);
void blk_mq_unregister_cpu_notifier(struct blk_mq_cpu_notifier *notifier);