[133/289] md: fix return value of rdev_size_change()

Greg KH
2010-12-08T01:01:27Z

From: Justin Maggard <jmaggard10@gmail.com>

commit c26a44ed1e552aaa1d4ceb71842002d235fe98d7 upstream.

When trying to grow an array by enlarging component devices,
rdev_size_store() expects the return value of rdev_size_change() to be
in sectors, but the actual value is returned in KBs.

This functionality was broken by commit
dd8ac336c13fd8afdb082ebacb1cddd5cf727889
so this patch is suitable for any kernel since 2.6.30.

Signed-off-by: Justin Maggard <jmaggard10@gmail.com>
Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
drivers/md/md.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -1329,7 +1329,7 @@ super_90_rdev_size_change(mdk_rdev_t *rd
md_super_write(rdev->mddev, rdev, rdev->sb_start, rdev->sb_size,
rdev->sb_page);
md_super_wait(rdev->mddev);
- return num_sectors / 2; /* kB for sysfs */
+ return num_sectors;
}

@@ -1697,7 +1697,7 @@ super_1_rdev_size_change(mdk_rdev_t *rde
md_super_write(rdev->mddev, rdev, rdev->sb_start, rdev->sb_size,
rdev->sb_page);
md_super_wait(rdev->mddev);
- return num_sectors / 2; /* kB for sysfs */
+ return num_sectors;
}

static struct super_type super_types[] = {