From 2e17a262a2371d38d2ec03614a2675a32cef9912 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 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 --- 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 9de6695195bf..c116b6e0d85a 100644 --- a/drivers/md/bcache/super.c +++ b/drivers/md/bcache/super.c @@ -1153,11 +1153,12 @@ 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); -- 2.30.2