From: Justin Maggard Date: Wed, 24 Nov 2010 05:36:17 +0000 (+1100) Subject: md: fix return value of rdev_size_change() X-Git-Tag: firefly_0821_release~10186^2~711 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=7b17b8b11b62228a043deb8fe4672dd5e72a8701;p=firefly-linux-kernel-4.4.55.git md: fix return value of rdev_size_change() 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 Signed-off-by: NeilBrown Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/md/md.c b/drivers/md/md.c index 01470794d9c3..035274682459 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -1122,7 +1122,7 @@ 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; } @@ -1485,7 +1485,7 @@ 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[] = {