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| /openbmc/linux/drivers/md/bcache/ |
| H A D | super.c | diff 0259d4498ba48454749ecfb9c81e892cdb8d1a32 Wed Oct 20 09:38:08 CDT 2021 Lin Feng <linf@wangsu.com> bcache: move calc_cached_dev_sectors to proper place on backing device detach
Calculation of cache_set's cached sectors is done by travelling
cached_devs list as shown below:
static void calc_cached_dev_sectors(struct cache_set *c)
{
...
list_for_each_entry(dc, &c->cached_devs, list)
sectors += bdev_sectors(dc->bdev);
c->cached_dev_sectors = sectors;
}
But cached_dev won't be unlinked from c->cached_devs list until we call
following list_move(&dc->list, &uncached_devices),
so previous fix in 'commit 46010141da6677b81cc77f9b47f8ac62bd1cbfd3
("bcache: recal cached_dev_sectors on detach")' is wrong, now we move
it to its right place.
Signed-off-by: Lin Feng <linf@wangsu.com>
Signed-off-by: Coly Li <colyli@suse.de>
Link: https://lore.kernel.org/r/20211020143812.6403-5-colyli@suse.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
diff 46010141da6677b81cc77f9b47f8ac62bd1cbfd3 Mon Oct 08 07:41:15 CDT 2018 Shenghui Wang <shhuiw@foxmail.com> bcache: recal cached_dev_sectors on detach
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>
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