linux-kernel - [PATCH 06/11] lightnvm: pblk: return NVM

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Date:   Mon, 16 Apr 2018 12:25:27 +0200
From:   "Javier González" <javier@...igon.com>
To:     mb@...htnvm.io
Cc:     linux-block@...r.kernel.org, linux-kernel@...r.kernel.org,
        Javier González <javier@...xlabs.com>
Subject: [PATCH 06/11] lightnvm: pblk: return NVM_ error on failed submission

Return a meaningful error when the sanity vector I/O check fails.

Signed-off-by: Javier González <javier@...xlabs.com>
---
 drivers/lightnvm/pblk-core.c | 22 ++++++++--------------
 1 file changed, 8 insertions(+), 14 deletions(-)

diff --git a/drivers/lightnvm/pblk-core.c b/drivers/lightnvm/pblk-core.c
index 128101f9e606..6bc0c7f61aac 100644
--- a/drivers/lightnvm/pblk-core.c
+++ b/drivers/lightnvm/pblk-core.c
@@ -467,16 +467,13 @@ int pblk_submit_io(struct pblk *pblk, struct nvm_rq *rqd)
 {
 	struct nvm_tgt_dev *dev = pblk->dev;
 
+	atomic_inc(&pblk->inflight_io);
+
 #ifdef CONFIG_NVM_DEBUG
-	int ret;
-
-	ret = pblk_check_io(pblk, rqd);
-	if (ret)
-		return ret;
+	if (pblk_check_io(pblk, rqd))
+		return NVM_IO_ERR;
 #endif
 
-	atomic_inc(&pblk->inflight_io);
-
 	return nvm_submit_io(dev, rqd);
 }
 
@@ -484,16 +481,13 @@ int pblk_submit_io_sync(struct pblk *pblk, struct nvm_rq *rqd)
 {
 	struct nvm_tgt_dev *dev = pblk->dev;
 
+	atomic_inc(&pblk->inflight_io);
+
 #ifdef CONFIG_NVM_DEBUG
-	int ret;
-
-	ret = pblk_check_io(pblk, rqd);
-	if (ret)
-		return ret;
+	if (pblk_check_io(pblk, rqd))
+		return NVM_IO_ERR;
 #endif
 
-	atomic_inc(&pblk->inflight_io);
-
 	return nvm_submit_io_sync(dev, rqd);
 }
 
-- 
2.7.4