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Date: Sun, 5 Jun 2016 23:28:50 -0400
From: green@...uxhacker.ru
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
devel@...verdev.osuosl.org,
Andreas Dilger <andreas.dilger@...el.com>
Cc: Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
Lustre Development List <lustre-devel@...ts.lustre.org>,
Jinshan Xiong <jinshan.xiong@...el.com>,
Oleg Drokin <oleg.drokin@...el.com>
Subject: [PATCH 1/4] staging/lustre/lov: calculate file offset correctly
From: Jinshan Xiong <jinshan.xiong@...el.com>
In lov_stripe_pgoff(), it calls lov_stripe_size() to calculate the
file size by ost_size, which will be wrong if the stripe_index
happens to be stripe aligned.
Signed-off-by: Jinshan Xiong <jinshan.xiong@...el.com>
Reviewed-on: http://review.whamcloud.com/14462
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-6482
Reviewed-by: Bobi Jam <bobijam@...mail.com>
Reviewed-by: Andreas Dilger <andreas.dilger@...el.com>
Signed-off-by: Oleg Drokin <oleg.drokin@...el.com>
---
drivers/staging/lustre/lustre/lov/lov_offset.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/staging/lustre/lustre/lov/lov_offset.c b/drivers/staging/lustre/lustre/lov/lov_offset.c
index 9302f06..7636bfa 100644
--- a/drivers/staging/lustre/lustre/lov/lov_offset.c
+++ b/drivers/staging/lustre/lustre/lov/lov_offset.c
@@ -74,7 +74,7 @@ pgoff_t lov_stripe_pgoff(struct lov_stripe_md *lsm, pgoff_t stripe_index,
{
loff_t offset;
- offset = lov_stripe_size(lsm, stripe_index << PAGE_SHIFT, stripe);
+ offset = lov_stripe_size(lsm, (stripe_index << PAGE_SHIFT) + 1, stripe);
return offset >> PAGE_SHIFT;
}
--
2.7.4
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