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md: fix return value of rdev_size_change()

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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
     dd8ac336c1
so this patch is suitable for any kernel since 2.6.30.

Cc: stable@kernel.org
Signed-off-by: Justin Maggard <jmaggard10@gmail.com>
Signed-off-by: NeilBrown <neilb@suse.de>
This commit is contained in:
Justin Maggard 2010-11-24 16:36:17 +11:00 committed by NeilBrown
parent 3561d43fd2
commit c26a44ed1e
1 changed files with 2 additions and 2 deletions
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4
drivers/md/md.c
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@ -1337,7 +1337,7 @@ super_90_rdev_size_change(mdk_rdev_t *rdev, sector_t num_sectors)
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;
}
@ -1704,7 +1704,7 @@ super_1_rdev_size_change(mdk_rdev_t *rdev, sector_t num_sectors)
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[] = {