From: =?UTF-8?q?Javier=20Gonz=C3=A1lez?= <jg@lightnvm.io>
Date: Mon, 26 Jun 2017 11:57:10 +0200
Subject: [PATCH] lightnvm: re-convert ppa format on I/O failure
Git-commit: 3e505afb45f57e84adabf7a3b0b705c7b04ad59c
Patch-mainline: v4.13-rc1
References: bsc#1104967,FATE#325924
MIME-Version: 1.0
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In case of a failure when submitting a request, convert the ppa_list
addresses to the target format so that it can interpret ppas for
recovery

Signed-off-by: Javier González <javier@cnexlabs.com>
Signed-off-by: Matias Bjørling <matias@cnexlabs.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Acked-by: Hannes Reinecke <hare@suse.com>
---
 drivers/lightnvm/core.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/lightnvm/core.c b/drivers/lightnvm/core.c
index 6a4aa608ad95..b8f82f5c6c0d 100644
--- a/drivers/lightnvm/core.c
+++ b/drivers/lightnvm/core.c
@@ -640,6 +640,7 @@ EXPORT_SYMBOL(nvm_max_phys_sects);
 int nvm_submit_io(struct nvm_tgt_dev *tgt_dev, struct nvm_rq *rqd)
 {
 	struct nvm_dev *dev = tgt_dev->parent;
+	int ret;
 
 	if (!dev->ops->submit_io)
 		return -ENODEV;
@@ -647,7 +648,12 @@ int nvm_submit_io(struct nvm_tgt_dev *tgt_dev, struct nvm_rq *rqd)
 	nvm_rq_tgt_to_dev(tgt_dev, rqd);
 
 	rqd->dev = tgt_dev;
-	return dev->ops->submit_io(dev, rqd);
+
+	/* In case of error, fail with right address format */
+	ret = dev->ops->submit_io(dev, rqd);
+	if (ret)
+		nvm_rq_dev_to_tgt(tgt_dev, rqd);
+	return ret;
 }
 EXPORT_SYMBOL(nvm_submit_io);
 
-- 
2.12.3