From: Jinshan Xiong <jinshan.xiong@intel.com>
Date: Tue, 14 Apr 2015 21:07:12 +0000 (-0700)
Subject: LU-6482 lov: calculate file offset correctly
X-Git-Tag: 2.7.53~24
X-Git-Url: https://git.whamcloud.com/?a=commitdiff_plain;h=refs%2Fchanges%2F62%2F14462%2F3;p=fs%2Flustre-release.git

LU-6482 lov: calculate file offset correctly

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@intel.com>
Change-Id: I87f33027a835121e7b45687e3642ca50bfbf94da
Reviewed-on: http://review.whamcloud.com/14462
Tested-by: Maloo <hpdd-maloo@intel.com>
Tested-by: Jenkins
Reviewed-by: Bobi Jam <bobijam@hotmail.com>
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
---

diff --git a/lustre/lov/lov_offset.c b/lustre/lov/lov_offset.c
index d325e1c..eeb4747 100644
--- a/lustre/lov/lov_offset.c
+++ b/lustre/lov/lov_offset.c
@@ -76,7 +76,7 @@ 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_CACHE_SHIFT,
+	offset = lov_stripe_size(lsm, (stripe_index << PAGE_CACHE_SHIFT) + 1,
 				 stripe);
 	return offset >> PAGE_CACHE_SHIFT;
 }