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bcache: recal cached_dev_sectors on detach
authorShenghui Wang <shhuiw@foxmail.com>
Mon, 8 Oct 2018 12:41:15 +0000 (20:41 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Mon, 25 Nov 2019 14:54:47 +0000 (15:54 +0100)
commitd6767e1f8eedaf6c635ead453e91629885ce4f5c
tree63ae782ea1c42016c90ac74fbbf4792e7353c6cf
parentc0dea2024671239aa31b4921e61fab67295d1517
bcache: recal cached_dev_sectors on detach

[ Upstream commit 46010141da6677b81cc77f9b47f8ac62bd1cbfd3 ]

Recal cached_dev_sectors on cached_dev detached, as recal done on
cached_dev attached.

Update the cached_dev_sectors before bcache_device_detach called
as bcache_device_detach will set bcache_device->c to NULL.

Signed-off-by: Shenghui Wang <shhuiw@foxmail.com>
Signed-off-by: Coly Li <colyli@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/md/bcache/super.c