From: Qian Cai <cai@lca.pw>
To: dan.j.williams@intel.com
Cc: linux-nvdimm@lists.01.org, linux-kernel@vger.kernel.org,
Qian Cai <cai@lca.pw>
Subject: [PATCH v2] nvdimm/btt: fix variable 'rc' set but not used
Date: Wed, 30 Oct 2019 17:28:09 -0400 [thread overview]
Message-ID: <1572470889-28754-1-git-send-email-cai@lca.pw> (raw)
drivers/nvdimm/btt.c: In function 'btt_read_pg':
drivers/nvdimm/btt.c:1264:8: warning: variable 'rc' set but not used
[-Wunused-but-set-variable]
int rc;
^~
Add a ratelimited message in case a storm of errors is encountered.
Fixes: d9b83c756953 ("libnvdimm, btt: rework error clearing")
Signed-off-by: Qian Cai <cai@lca.pw>
---
v2: include the block address that is returning an error per Dan.
drivers/nvdimm/btt.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/nvdimm/btt.c b/drivers/nvdimm/btt.c
index 3e9f45aec8d1..10313be78221 100644
--- a/drivers/nvdimm/btt.c
+++ b/drivers/nvdimm/btt.c
@@ -1266,6 +1266,12 @@ static int btt_read_pg(struct btt *btt, struct bio_integrity_payload *bip,
/* Media error - set the e_flag */
rc = btt_map_write(arena, premap, postmap, 0, 1,
NVDIMM_IO_ATOMIC);
+
+ if (rc)
+ dev_warn_ratelimited(to_dev(arena),
+ "Error persistently tracking bad blocks at %#x\n",
+ premap);
+
goto out_rtt;
}
--
1.8.3.1
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next reply other threads:[~2019-10-30 21:28 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-30 21:28 Qian Cai [this message]
2019-10-30 21:38 ` [PATCH v2] nvdimm/btt: fix variable 'rc' set but not used Verma, Vishal L
2019-10-30 21:54 ` Qian Cai
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