diff options
author | Coly Li <colyli@suse.de> | 2020-10-01 14:50:46 +0800 |
---|---|---|
committer | Jens Axboe <axboe@kernel.dk> | 2020-10-02 14:25:29 -0600 |
commit | 697e23495c94f0380c1ed8b11f830b92b64c99ea (patch) | |
tree | c422d72b305cd9302bc631db4b3bb2bc6cbf7e9c /drivers/md/bcache/alloc.c | |
parent | 17e4aed8309ff28670271546c2c3263eb12f5eb6 (diff) | |
download | linux-stable-697e23495c94f0380c1ed8b11f830b92b64c99ea.tar.gz linux-stable-697e23495c94f0380c1ed8b11f830b92b64c99ea.tar.bz2 linux-stable-697e23495c94f0380c1ed8b11f830b92b64c99ea.zip |
bcache: explicitly make cache_set only have single cache
Currently although the bcache code has a framework for multiple caches
in a cache set, but indeed the multiple caches never completed and users
use md raid1 for multiple copies of the cached data.
This patch does the following change in struct cache_set, to explicitly
make a cache_set only have single cache,
- Change pointer array "*cache[MAX_CACHES_PER_SET]" to a single pointer
"*cache".
- Remove pointer array "*cache_by_alloc[MAX_CACHES_PER_SET]".
- Remove "caches_loaded".
Now the code looks as exactly what it does in practic: only one cache is
used in the cache set.
Signed-off-by: Coly Li <colyli@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 | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/md/bcache/alloc.c b/drivers/md/bcache/alloc.c index 4493ff57476d..3385f6add6df 100644 --- a/drivers/md/bcache/alloc.c +++ b/drivers/md/bcache/alloc.c @@ -501,7 +501,7 @@ int __bch_bucket_alloc_set(struct cache_set *c, unsigned int reserve, bkey_init(k); - ca = c->cache_by_alloc[0]; + ca = c->cache; b = bch_bucket_alloc(ca, reserve, wait); if (b == -1) goto err; |