在 16/7/1 上午10:09, wangyijing 写道:
>
>
> 在 2016/6/29 18:20, Coly Li 写道:
>> 在 16/6/22 上午10:10, Yijing Wang 写道:
>>> Cache_sb is not used in cache_alloc, and we have copied
>>> sb info to cache->sb already, remove it.
>>>
>>> Signed-off-by: Yijing Wang <wangyijing@xxxxxxxxxx>
>>> ---
>>> drivers/md/bcache/super.c | 4 ++--
>>> 1 files changed, 2 insertions(+), 2 deletions(-)
>>>
>>> diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c
>>> index f5dbb4e..aecaace 100644
>>> --- a/drivers/md/bcache/super.c
>>> +++ b/drivers/md/bcache/super.c
>>> @@ -1803,7 +1803,7 @@ void bch_cache_release(struct kobject *kobj)
>>> module_put(THIS_MODULE);
>>> }
>>>
>>> -static int cache_alloc(struct cache_sb *sb, struct cache *ca)
>>> +static int cache_alloc(struct cache *ca)
>>> {
>>> size_t free;
>>> struct bucket *b;
>>> @@ -1858,7 +1858,7 @@ static int register_cache(struct cache_sb *sb, struct page *sb_page,
>>> if (blk_queue_discard(bdev_get_queue(ca->bdev)))
>>> ca->discard = CACHE_DISCARD(&ca->sb);
>>>
>>> - ret = cache_alloc(sb, ca);
>>> + ret = cache_alloc(ca);
>>
>> I am not sure whether struct cache_b *sb will be used in future, I
>> suggest to let it be for now.
>>
>
> We have copied sb to ca->sb, so if we need sb info in future, we could get info from ca->sb.
>
Hi Yijing,
Your point makes sense, please add
Reviewed-by: Coly Li <colyli@xxxxxxx>
in your patch, if you don't mind :-)
Thanks for your interpretation.
Coly
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