Commit ecfb40c6 authored May 06, 2016 by Matias Bjørling Committed by Jens Axboe May 06, 2016

lightnvm: handle submit_io failure



The device ->submit_io() callback might fail to submit I/O to device.
In that case, the nvm_submit_ppa function should not wait for
completion. Instead return the ->submit_io() error.

Reviewed by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Matias Bjørling <m@bjorling.me>
Signed-off-by: Jens Axboe <axboe@fb.com>

parent 57aac2f1

drivers/lightnvm/core.c

+5 −0

Original line number	Diff line number	Diff line
		@@ -351,6 +351,11 @@ int nvm_submit_ppa(struct nvm_dev dev, struct ppa_addr ppa, int nr_ppas,
		nvm_generic_to_addr_mode(dev, &rqd);

		ret = dev->ops->submit_io(dev, &rqd);
		if (ret) {
		nvm_free_rqd_ppalist(dev, &rqd);
		bio_put(bio);
		return ret;
		}

		/* Prevent hang_check timer from firing at us during very long I/O */
		hang_check = sysctl_hung_task_timeout_secs;