diff options
| author | Coly Li <colyli@suse.de> | 2020-10-01 14:50:56 +0800 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2020-10-02 14:25:30 -0600 |
| commit | 4a784266c6a75f375e08915b35e909df19eff17f (patch) | |
| tree | 8af35322a0c328779bc46da3e29b87aa7bdf818e /drivers/md/bcache/alloc.c | |
| parent | 6f9414e0f6f35c7669dad5ac1a838ce323302f03 (diff) | |
bcache: remove embedded struct cache_sb from struct cache_set
Since bcache code was merged into mainline kerrnel, each cache set only
as one single cache in it. The multiple caches framework is here but the
code is far from completed. Considering the multiple copies of cached
data can also be stored on e.g. md raid1 devices, it is unnecessary to
support multiple caches in one cache set indeed.
The previous preparation patches fix the dependencies of explicitly
making a cache set only have single cache. Now we don't have to maintain
an embedded partial super block in struct cache_set, the in-memory super
block can be directly referenced from struct cache.
This patch removes the embedded struct cache_sb from struct cache_set,
and fixes all locations where the superb lock was referenced from this
removed super block by referencing the in-memory super block of struct
cache.
Signed-off-by: Coly Li <colyli@suse.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/md/bcache/alloc.c')
| -rw-r--r-- | drivers/md/bcache/alloc.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/md/bcache/alloc.c b/drivers/md/bcache/alloc.c index 65fdbdeb5134..8c371d5eef8e 100644 --- a/drivers/md/bcache/alloc.c +++ b/drivers/md/bcache/alloc.c @@ -87,7 +87,7 @@ void bch_rescale_priorities(struct cache_set *c, int sectors) { struct cache *ca; struct bucket *b; - unsigned long next = c->nbuckets * c->sb.bucket_size / 1024; + unsigned long next = c->nbuckets * c->cache->sb.bucket_size / 1024; int r; atomic_sub(sectors, &c->rescale); @@ -583,7 +583,7 @@ static struct open_bucket *pick_data_bucket(struct cache_set *c, struct open_bucket, list); found: if (!ret->sectors_free && KEY_PTRS(alloc)) { - ret->sectors_free = c->sb.bucket_size; + ret->sectors_free = c->cache->sb.bucket_size; bkey_copy(&ret->key, alloc); bkey_init(alloc); } @@ -677,7 +677,7 @@ bool bch_alloc_sectors(struct cache_set *c, &PTR_CACHE(c, &b->key, i)->sectors_written); } - if (b->sectors_free < c->sb.block_size) + if (b->sectors_free < c->cache->sb.block_size) b->sectors_free = 0; /* |