From da67e68fb9d37fb9072b20cc75d4337a73bc01b4 Mon Sep 17 00:00:00 2001 From: Javier González Date: Fri, 13 Oct 2017 14:46:05 +0200 Subject: lightnvm: pblk: avoid deadlock on low LUN config MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit On low LUN configurations, make sure not to send bios that are bigger than the buffer size. Fixes: a4bd217b4326 ("lightnvm: physical block device (pblk) target") Signed-off-by: Javier González Signed-off-by: Matias Bjørling Signed-off-by: Jens Axboe --- drivers/lightnvm/pblk-init.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/lightnvm/pblk-init.c') diff --git a/drivers/lightnvm/pblk-init.c b/drivers/lightnvm/pblk-init.c index 83445115a922..eee4eeb47d07 100644 --- a/drivers/lightnvm/pblk-init.c +++ b/drivers/lightnvm/pblk-init.c @@ -46,7 +46,7 @@ static int pblk_rw_io(struct request_queue *q, struct pblk *pblk, * user I/Os. Unless stalled, the rate limiter leaves at least 256KB * available for user I/O. */ - if (unlikely(pblk_get_secs(bio) >= pblk_rl_sysfs_rate_show(&pblk->rl))) + if (pblk_get_secs(bio) > pblk_rl_max_io(&pblk->rl)) blk_queue_split(q, &bio); return pblk_write_to_cache(pblk, bio, PBLK_IOTYPE_USER); -- cgit 1.4.1