* [PATCH] md: fix super_offset endianness in super_1_rdev_size_change
@ 2017-03-10 3:27 Jason Yan
2017-03-10 4:47 ` Shaohua Li
0 siblings, 1 reply; 2+ messages in thread
From: Jason Yan @ 2017-03-10 3:27 UTC (permalink / raw)
To: shli, linux-raid; +Cc: miaoxie, zhaohongjiang, Jason Yan
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>
---
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 548d1b8..b6516f8 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -1887,7 +1887,7 @@ 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);
do {
md_super_write(rdev->mddev, rdev, rdev->sb_start, rdev->sb_size,
--
2.5.0
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] md: fix super_offset endianness in super_1_rdev_size_change
2017-03-10 3:27 [PATCH] md: fix super_offset endianness in super_1_rdev_size_change Jason Yan
@ 2017-03-10 4:47 ` Shaohua Li
0 siblings, 0 replies; 2+ messages in thread
From: Shaohua Li @ 2017-03-10 4:47 UTC (permalink / raw)
To: Jason Yan; +Cc: linux-raid, miaoxie, zhaohongjiang
On Fri, Mar 10, 2017 at 11:27:23AM +0800, Jason Yan wrote:
> 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>
thanks, applied the two patches.
> ---
> 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 548d1b8..b6516f8 100644
> --- a/drivers/md/md.c
> +++ b/drivers/md/md.c
> @@ -1887,7 +1887,7 @@ 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);
> do {
> md_super_write(rdev->mddev, rdev, rdev->sb_start, rdev->sb_size,
> --
> 2.5.0
>
^ permalink raw reply [flat|nested] 2+ messages in thread
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2017-03-10 3:27 [PATCH] md: fix super_offset endianness in super_1_rdev_size_change Jason Yan
2017-03-10 4:47 ` Shaohua Li
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