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Commit c26a44ed authored by Justin Maggard's avatar Justin Maggard Committed by NeilBrown
Browse files

md: fix return value of rdev_size_change() 



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
     dd8ac336
so this patch is suitable for any kernel since 2.6.30.

Cc: stable@kernel.org
Signed-off-by: default avatarJustin Maggard <jmaggard10@gmail.com>
Signed-off-by: default avatarNeilBrown <neilb@suse.de>
parent 3561d43f

drivers/md/md.c

+2 −2
Original line number Diff line number Diff line
@@ -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[] = {