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lightnvm: warn if irqs are disabled in lock laddr 

Add a warning if irqs are disabled when locking a new address in rrpc.
The typical path to a new request does not disable irqs, but this is not
guaranteed in the future.

Signed-off-by: Javier González <javier@cnexlabs.com>
Signed-off-by: Matias Bjørling <m@bjorling.me>
Signed-off-by: Jens Axboe <axboe@fb.com>
This commit is contained in:
Javier González 2016-02-04 15:13:24 +01:00 committed by Jens Axboe
parent 16c6d048d7
commit bba7f40a02
1 changed files with 2 additions and 0 deletions
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2
drivers/lightnvm/rrpc.h
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@ -184,6 +184,8 @@ static int __rrpc_lock_laddr(struct rrpc *rrpc, sector_t laddr,
sector_t laddr_end = laddr + pages - 1;
struct rrpc_inflight_rq *rtmp;
WARN_ON(irqs_disabled());
spin_lock_irq(&rrpc->inflights.lock);
list_for_each_entry(rtmp, &rrpc->inflights.reqs, list) {
if (unlikely(request_intersects(rtmp, laddr, laddr_end))) {