linux-kernel - [GIT PULL 09/58] lightnvm: pblk: improve error message if down

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Date:   Fri, 13 Oct 2017 14:45:58 +0200
From:   Matias Bjørling <m@...rling.me>
To:     axboe@...com
Cc:     linux-block@...r.kernel.org, linux-kernel@...r.kernel.org,
        Rakesh Pandit <rakesh@...era.com>,
        Matias Bjørling <m@...rling.me>
Subject: [GIT PULL 09/58] lightnvm: pblk: improve error message if down_timeout fails

From: Rakesh Pandit <rakesh@...era.com>

The two pr_err messages are useless as they don't differentiate
error code.

Signed-off-by: Rakesh Pandit <rakesh@...era.com>
Reviewed-by: Javier González <javier@...xlabs.com>
Signed-off-by: Matias Bjørling <m@...rling.me>
---
 drivers/lightnvm/pblk-core.c | 12 ++----------
 1 file changed, 2 insertions(+), 10 deletions(-)

diff --git a/drivers/lightnvm/pblk-core.c b/drivers/lightnvm/pblk-core.c
index b53bb00..027c42b 100644
--- a/drivers/lightnvm/pblk-core.c
+++ b/drivers/lightnvm/pblk-core.c
@@ -1691,16 +1691,8 @@ static void __pblk_down_page(struct pblk *pblk, struct ppa_addr *ppa_list,
 #endif
 
 	ret = down_timeout(&rlun->wr_sem, msecs_to_jiffies(30000));
-	if (ret) {
-		switch (ret) {
-		case -ETIME:
-			pr_err("pblk: lun semaphore timed out\n");
-			break;
-		case -EINTR:
-			pr_err("pblk: lun semaphore timed out\n");
-			break;
-		}
-	}
+	if (ret == -ETIME || ret == -EINTR)
+		pr_err("pblk: taking lun semaphore timed out: err %d\n", -ret);
 }
 
 void pblk_down_page(struct pblk *pblk, struct ppa_addr *ppa_list, int nr_ppas)
-- 
2.9.3