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Date: Wed, 1 Nov 2017 22:26:07 +0100 From: Willy Tarreau <w@....eu> To: linux-kernel@...r.kernel.org, stable@...r.kernel.org, linux@...ck-us.net Cc: Jason Yan <yanaijie@...wei.com>, Shaohua Li <shli@...com>, Willy Tarreau <w@....eu> Subject: [PATCH 3.10 066/139] md: fix super_offset endianness in super_1_rdev_size_change From: Jason Yan <yanaijie@...wei.com> commit 3fb632e40d7667d8bedfabc28850ac06d5493f54 upstream. The sb->super_offset should be big-endian, but the rdev->sb_start is in host byte order, so fix this by adding cpu_to_le64. Signed-off-by: Jason Yan <yanaijie@...wei.com> Signed-off-by: Shaohua Li <shli@...com> Signed-off-by: Willy Tarreau <w@....eu> --- drivers/md/md.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/md/md.c b/drivers/md/md.c index 7c45286..95eb53f 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -1898,7 +1898,7 @@ super_1_rdev_size_change(struct md_rdev *rdev, sector_t num_sectors) } sb = page_address(rdev->sb_page); sb->data_size = cpu_to_le64(num_sectors); - sb->super_offset = rdev->sb_start; + sb->super_offset = cpu_to_le64(rdev->sb_start); sb->sb_csum = calc_sb_1_csum(sb); md_super_write(rdev->mddev, rdev, rdev->sb_start, rdev->sb_size, rdev->sb_page); -- 2.8.0.rc2.1.gbe9624a
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