From 9e9f19efcb1ce58f2bac949f34dc91060e470472 Mon Sep 17 00:00:00 2001 From: Tang Junhui Date: Mon, 8 Oct 2018 20:41:12 +0800 Subject: [PATCH] bcache: correct dirty data statistics 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 Cc: stable@vger.kernel.org Signed-off-by: Coly Li Signed-off-by: Jens Axboe Signed-off-by: Greg Kroah-Hartman --- drivers/md/bcache/super.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c index 9a5f84d614da..03bb5cee2b83 100644 --- a/drivers/md/bcache/super.c +++ b/drivers/md/bcache/super.c @@ -1148,11 +1148,12 @@ int bch_cached_dev_attach(struct cached_dev *dc, struct cache_set *c, } 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); -- 2.17.1