4.19-stable review patch. If anyone has any objections, please let me know.
------------------ From: Tang Junhui <[email protected]> commit 2e17a262a2371d38d2ec03614a2675a32cef9912 upstream. When bcache device is clean, dirty keys may still exist after journal replay, so we need to count these dirty keys even device in clean status, otherwise after writeback, the amount of dirty data would be incorrect. Signed-off-by: Tang Junhui <[email protected]> Cc: [email protected] Signed-off-by: Coly Li <[email protected]> Signed-off-by: Jens Axboe <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- drivers/md/bcache/super.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/drivers/md/bcache/super.c +++ b/drivers/md/bcache/super.c @@ -1148,11 +1148,12 @@ int bch_cached_dev_attach(struct cached_ } if (BDEV_STATE(&dc->sb) == BDEV_STATE_DIRTY) { - bch_sectors_dirty_init(&dc->disk); atomic_set(&dc->has_dirty, 1); bch_writeback_queue(dc); } + bch_sectors_dirty_init(&dc->disk); + bch_cached_dev_run(dc); bcache_device_link(&dc->disk, c, "bdev"); atomic_inc(&c->attached_dev_nr);
