From dff90d58a1c815b87b2603295382c97e78064349 Mon Sep 17 00:00:00 2001 From: Coly Li Date: Fri, 28 Jun 2019 20:00:00 +0800 Subject: bcache: add reclaimed_journal_buckets to struct cache_set Now we have counters for how many times jouranl is reclaimed, how many times cached dirty btree nodes are flushed, but we don't know how many jouranl buckets are really reclaimed. This patch adds reclaimed_journal_buckets into struct cache_set, this is an increasing only counter, to tell how many journal buckets are reclaimed since cache set runs. From all these three counters (reclaim, reclaimed_journal_buckets, flush_write), we can have idea how well current journal space reclaim code works. Signed-off-by: Coly Li Signed-off-by: Jens Axboe --- drivers/md/bcache/bcache.h | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/md/bcache/bcache.h') diff --git a/drivers/md/bcache/bcache.h b/drivers/md/bcache/bcache.h index 35396248a7d5..013e35a9e317 100644 --- a/drivers/md/bcache/bcache.h +++ b/drivers/md/bcache/bcache.h @@ -705,6 +705,7 @@ struct cache_set { atomic_long_t writeback_keys_failed; atomic_long_t reclaim; + atomic_long_t reclaimed_journal_buckets; atomic_long_t flush_write; enum { -- cgit