From: "Javier González" <jg@lightnvm.io>
To: mb@lightnvm.io, axboe@fb.com
Cc: linux-block@vger.kernel.org, linux-kernel@vger.kernel.org,
"Javier González" <javier@cnexlabs.com>,
"Matias Bjørling" <matias@cnexlabs.com>
Subject: [PATCH 08/10] lightnvm: pblk: add initialization check
Date: Fri, 30 Jun 2017 17:56:41 +0200 [thread overview]
Message-ID: <1498838203-21539-9-git-send-email-javier@cnexlabs.com> (raw)
In-Reply-To: <1498838203-21539-1-git-send-email-javier@cnexlabs.com>
Add a sanity check to the pblk initialization sequence in order to
ensure that enough LUNs have been allocated to store the line metadata.
Signed-off-by: Javier González <javier@cnexlabs.com>
Signed-off-by: Matias Bjørling <matias@cnexlabs.com>
---
drivers/lightnvm/pblk-init.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/lightnvm/pblk-init.c b/drivers/lightnvm/pblk-init.c
index 025d8fe52154..1b0f61233c21 100644
--- a/drivers/lightnvm/pblk-init.c
+++ b/drivers/lightnvm/pblk-init.c
@@ -716,6 +716,12 @@ static int pblk_lines_init(struct pblk *pblk)
lm->emeta_bb = geo->nr_luns - i;
lm->min_blk_line = 1 + DIV_ROUND_UP(lm->smeta_sec + lm->emeta_sec[0],
geo->sec_per_blk);
+ if (lm->min_blk_line > lm->blk_per_line) {
+ pr_err("pblk: config. not supported. Min. LUN in line:%d\n",
+ lm->blk_per_line);
+ ret = -EINVAL;
+ goto fail;
+ }
ret = pblk_lines_alloc_metadata(pblk);
if (ret)
--
2.7.4
next prev parent reply other threads:[~2017-06-30 15:59 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-30 15:56 [PATCH 00/10] lightnvm: pblk fixes for 4.13 Javier González
2017-06-30 15:56 ` [PATCH 01/10] lightnvm: pblk: fix bad le64 assignations Javier González
2017-06-30 15:56 ` [PATCH 02/10] lightnvm: pblk: fix double-free on pblk init Javier González
2017-06-30 15:56 ` [PATCH 03/10] lightnvm: pblk: remove unused return variable Javier González
2017-06-30 15:56 ` [PATCH 04/10] lightnvm: pblk: schedule if data is not ready Javier González
2017-06-30 15:56 ` [PATCH 05/10] lightnvm: pblk: use right metadata buffer for recovery Javier González
2017-06-30 15:56 ` [PATCH 06/10] lightnvm: pblk: use vmalloc for GC data buffer Javier González
2017-06-30 15:56 ` [PATCH 07/10] lightnvm: pblk: remove target using async. I/Os Javier González
2017-06-30 15:56 ` Javier González [this message]
2017-06-30 15:56 ` [PATCH 09/10] lightnvm: pblk: verify that cache read is still valid Javier González
2017-06-30 15:56 ` [PATCH 10/10] lightnvm: pblk: set line bitmap check under debug Javier González
2017-06-30 17:08 ` [PATCH 00/10] lightnvm: pblk fixes for 4.13 Jens Axboe
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