On 6/22/21 6:54 PM, Hannes Reinecke wrote:
> On 6/15/21 7:49 AM, Coly Li wrote:
>> From: Jianpeng Ma <jianpeng.ma@xxxxxxxxx>
>>
>> This patch implements bch_get_allocated_pages() of the buddy to be used to
> buddy allocator
>
Copied. Will be updated in next post.
>> get allocated pages from specific owner.
>>
>> Signed-off-by: Jianpeng Ma <jianpeng.ma@xxxxxxxxx>
>> Co-developed-by: Qiaowei Ren <qiaowei.ren@xxxxxxxxx>
>> Signed-off-by: Qiaowei Ren <qiaowei.ren@xxxxxxxxx>
>> Signed-off-by: Coly Li <colyli@xxxxxxx>
>> ---
>> drivers/md/bcache/nvm-pages.c | 6 ++++++
>> drivers/md/bcache/nvm-pages.h | 5 +++++
>> 2 files changed, 11 insertions(+)
>>
>> diff --git a/drivers/md/bcache/nvm-pages.c b/drivers/md/bcache/nvm-pages.c
>> index 74d08950c67c..42b0504d9564 100644
>> --- a/drivers/md/bcache/nvm-pages.c
>> +++ b/drivers/md/bcache/nvm-pages.c
>> @@ -397,6 +397,12 @@ void *bch_nvm_alloc_pages(int order, const char *owner_uuid)
>> }
>> EXPORT_SYMBOL_GPL(bch_nvm_alloc_pages);
>>
>> +struct bch_nvm_pages_owner_head *bch_get_allocated_pages(const char *owner_uuid)
>> +{
>> + return find_owner_head(owner_uuid, false);
>> +}
>> +EXPORT_SYMBOL_GPL(bch_get_allocated_pages);
>> +
>> #define BCH_PGOFF_TO_KVADDR(pgoff) ((void *)((unsigned long)pgoff << PAGE_SHIFT))
>>
>> static int init_owner_info(struct bch_nvm_namespace *ns)
>> diff --git a/drivers/md/bcache/nvm-pages.h b/drivers/md/bcache/nvm-pages.h
>> index 0ca699166855..c763bf2e2721 100644
>> --- a/drivers/md/bcache/nvm-pages.h
>> +++ b/drivers/md/bcache/nvm-pages.h
>> @@ -64,6 +64,7 @@ int bch_nvm_init(void);
>> void bch_nvm_exit(void);
>> void *bch_nvm_alloc_pages(int order, const char *owner_uuid);
>> void bch_nvm_free_pages(void *addr, int order, const char *owner_uuid);
>> +struct bch_nvm_pages_owner_head *bch_get_allocated_pages(const char *owner_uuid);
>>
>> #else
>>
>> @@ -81,6 +82,10 @@ static inline void *bch_nvm_alloc_pages(int order, const char *owner_uuid)
>> return NULL;
>> }
>> static inline void bch_nvm_free_pages(void *addr, int order, const char *owner_uuid) { }
>> +static inline struct bch_nvm_pages_owner_head *bch_get_allocated_pages(const char *owner_uuid)
>> +{
>> + return NULL;
>> +}
>>
>> #endif /* CONFIG_BCACHE_NVM_PAGES */
>>
>>
> Reviewed-by: Hannes Reinecke <hare@xxxxxxx>
Thanks for your review.
Coly Li
