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| author | Tang Junhui <tang.junhui.linux@gmail.com> | 2018-10-08 15:41:12 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-11-13 22:08:16 +0300 |
| commit | 9e9f19efcb1ce58f2bac949f34dc91060e470472 (patch) | |
| tree | 9378413fa7368d6bdcfa3264656f2bab9bbedd22 /drivers/md | |
| parent | 32870e2bb60041867764cc85634c0d9023040e35 (diff) | |
| download | linux-9e9f19efcb1ce58f2bac949f34dc91060e470472.tar.xz | |
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 <tang.junhui.linux@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Coly Li <colyli@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/md')
| -rw-r--r-- | drivers/md/bcache/super.c | 3 |
1 files changed, 2 insertions, 1 deletions
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); |