From 2deeefc02dfff6b554020eb62aecf98814641372 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Javier=20Gonz=C3=A1lez?= <javier@javigon.com>
Date: Fri, 1 Jun 2018 15:04:15 +0200
Subject: lightnvm: pblk: fail gracefully on line alloc. failure
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In the event of a line failing to allocate, fail gracefully and stop the
pipeline to avoid more write failing in the same place.
Signed-off-by: Javier González <javier@cnexlabs.com>
Signed-off-by: Matias Bjørling <mb@lightnvm.io>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
drivers/lightnvm/pblk-init.c | 5 +++++
1 file changed, 5 insertions(+)
(limited to 'drivers/lightnvm/pblk-init.c')
diff --git a/drivers/lightnvm/pblk-init.c b/drivers/lightnvm/pblk-init.c
index 9a984abd3dfe..44f9ec8d4c2a 100644
--- a/drivers/lightnvm/pblk-init.c
+++ b/drivers/lightnvm/pblk-init.c
@@ -1047,6 +1047,11 @@ static int pblk_lines_init(struct pblk *pblk)
nr_free_chks += pblk_setup_line_meta(pblk, line, chunk_meta, i);
}
+ if (!nr_free_chks) {
+ pr_err("pblk: too many bad blocks prevent for sane instance\n");
+ return -EINTR;
+ }
+
pblk_set_provision(pblk, nr_free_chks);
kfree(chunk_meta);
--
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