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authorJason Yan <yanaijie@huawei.com>2017-03-10 11:27:23 +0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-07-15 11:57:49 +0200
commitff62c63109d9a10fa9cb34bcf933fc2ce89dfdaa (patch)
tree037f73362773c06382d3780882e46c870d53d680 /drivers/md
parente20894aad9e875e4aec2c73e7badcd440f02cde4 (diff)
md: fix super_offset endianness in super_1_rdev_size_change
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@huawei.com> Signed-off-by: Shaohua Li <shli@fb.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/md')
-rw-r--r--drivers/md/md.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 060a79a7ef4e..0a856cb181e9 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -1866,7 +1866,7 @@ 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);