linux-kernel - [GIT PULL 07/26] lightnvm: pblk: ensure that erase is chunk aligned

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Message-Id: <20190504183811.18725-8-mb@lightnvm.io>
Date:   Sat,  4 May 2019 20:37:52 +0200
From:   Matias Bjørling <mb@...htnvm.io>
To:     axboe@...com
Cc:     linux-block@...r.kernel.org, linux-kernel@...r.kernel.org,
        Igor Konopko <igor.j.konopko@...el.com>,
        Matias Bjørling <mb@...htnvm.io>
Subject: [GIT PULL 07/26] lightnvm: pblk: ensure that erase is chunk aligned

From: Igor Konopko <igor.j.konopko@...el.com>

The sector bits in the erase command may be uninitialized are
uninitialized, causing the erase LBA to be unaligned to the chunk size.

This is unexpected situation, since erase shall always be chunk
aligned based on OCSSD the 2.0 specification.

Signed-off-by: Igor Konopko <igor.j.konopko@...el.com>
Reviewed-by: Javier González <javier@...igon.com>
Reviewed-by: Hans Holmberg <hans.holmberg@...xlabs.com>
Signed-off-by: Matias Bjørling <mb@...htnvm.io>
---
 drivers/lightnvm/pblk-map.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/lightnvm/pblk-map.c b/drivers/lightnvm/pblk-map.c
index 7fbc99b60cac..5408e32b2f13 100644
--- a/drivers/lightnvm/pblk-map.c
+++ b/drivers/lightnvm/pblk-map.c
@@ -162,6 +162,7 @@ int pblk_map_erase_rq(struct pblk *pblk, struct nvm_rq *rqd,
 
 			*erase_ppa = ppa_list[i];
 			erase_ppa->a.blk = e_line->id;
+			erase_ppa->a.reserved = 0;
 
 			spin_unlock(&e_line->lock);
 
-- 
2.19.1