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| author | Javier González <jg@lightnvm.io> | 2016-02-04 14:13:24 (GMT) |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2016-02-04 16:19:45 (GMT) |
| commit | bba7f40a029c1e2966146e3a021b3deaf5639904 (patch) | |
| tree | 2fdfd5e29ad989ddb260c18f9e6d4fbc42100c4d | |
| parent | 16c6d048d7b74249a4387700887e8adb13028866 (diff) | |
| download | linux-bba7f40a029c1e2966146e3a021b3deaf5639904.tar.xz | |
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>
| -rw-r--r-- | drivers/lightnvm/rrpc.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/lightnvm/rrpc.h b/drivers/lightnvm/rrpc.h index ef13ac7..b0277cb 100644 --- a/drivers/lightnvm/rrpc.h +++ b/drivers/lightnvm/rrpc.h @@ -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))) { |