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From:   =?UTF-8?q?Matias=20Bj=C3=B8rling?= <mb@lightnvm.io>
To:     igor.j.konopko@intel.com, marcin.dziegielewski@intel.com,
        javier@cnexlabs.com, hans.holmberg@cnexlabs.com, hlitz@ucsc.edu,
        youngtack.jin@circuitblvd.com
Cc:     linux-block@vger.kernel.org, linux-kernel@vger.kernel.org,
        =?UTF-8?q?Matias=20Bj=C3=B8rling?= <mb@lightnvm.io>
Subject: [PATCH] lightnvm: pblk: fix incorrect min_write_pgs
Date:   Fri, 17 Aug 2018 16:36:37 +0200
Message-Id: <20180817143637.15943-1-mb@lightnvm.io>
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Sender: linux-kernel-owner@vger.kernel.org
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The calculation of pblk->min_write_pgs should only use the optimal
write size attribute provided by the drive, it does not correlate to
the memory page size of the system, which can be smaller or larger
than the LBA size reported.

Signed-off-by: Matias Bjørling <mb@lightnvm.io>
---
 drivers/lightnvm/pblk-init.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/lightnvm/pblk-init.c b/drivers/lightnvm/pblk-init.c
index 9119c64d6f62..8adc8ac8b03c 100644
--- a/drivers/lightnvm/pblk-init.c
+++ b/drivers/lightnvm/pblk-init.c
@@ -371,7 +371,7 @@ static int pblk_core_init(struct pblk *pblk)
 	atomic64_set(&pblk->nr_flush, 0);
 	pblk->nr_flush_rst = 0;
 
-	pblk->min_write_pgs = geo->ws_opt * (geo->csecs / PAGE_SIZE);
+	pblk->min_write_pgs = geo->ws_opt;
 	max_write_ppas = pblk->min_write_pgs * geo->all_luns;
 	pblk->max_write_pgs = min_t(int, max_write_ppas, NVM_MAX_VLBA);
 	pblk_set_sec_per_write(pblk, pblk->min_write_pgs);
-- 
2.11.0