diff mbox series

[01/29] mm: shrinker: add shrinker::private_data field

Message ID 20230622085335.77010-2-zhengqi.arch@bytedance.com (mailing list archive)
State Deferred, archived
Headers show
Series use refcount+RCU method to implement lockless slab shrink | expand

Commit Message

Qi Zheng June 22, 2023, 8:53 a.m. UTC
To prepare for the dynamic allocation of shrinker instances
embedded in other structures, add a private_data field to
struct shrinker, so that we can use shrinker::private_data
to record and get the original embedded structure.

Signed-off-by: Qi Zheng <zhengqi.arch@bytedance.com>
---
 include/linux/shrinker.h | 2 ++
 1 file changed, 2 insertions(+)

Comments

Vlastimil Babka June 22, 2023, 2:47 p.m. UTC | #1
On 6/22/23 10:53, Qi Zheng wrote:
> To prepare for the dynamic allocation of shrinker instances
> embedded in other structures, add a private_data field to
> struct shrinker, so that we can use shrinker::private_data
> to record and get the original embedded structure.
> 
> Signed-off-by: Qi Zheng <zhengqi.arch@bytedance.com>

I would fold this to 02/29, less churn.

> ---
>  include/linux/shrinker.h | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/include/linux/shrinker.h b/include/linux/shrinker.h
> index 224293b2dd06..43e6fcabbf51 100644
> --- a/include/linux/shrinker.h
> +++ b/include/linux/shrinker.h
> @@ -70,6 +70,8 @@ struct shrinker {
>  	int seeks;	/* seeks to recreate an obj */
>  	unsigned flags;
>  
> +	void *private_data;
> +
>  	/* These are for internal use */
>  	struct list_head list;
>  #ifdef CONFIG_MEMCG
Qi Zheng June 23, 2023, 12:50 p.m. UTC | #2
Hi Vlastimil,

On 2023/6/22 22:47, Vlastimil Babka wrote:
> On 6/22/23 10:53, Qi Zheng wrote:
>> To prepare for the dynamic allocation of shrinker instances
>> embedded in other structures, add a private_data field to
>> struct shrinker, so that we can use shrinker::private_data
>> to record and get the original embedded structure.
>>
>> Signed-off-by: Qi Zheng <zhengqi.arch@bytedance.com>
> 
> I would fold this to 02/29, less churn.

OK, I will fold this to 02/29 in the v2.

Thanks,
Qi

> 
>> ---
>>   include/linux/shrinker.h | 2 ++
>>   1 file changed, 2 insertions(+)
>>
>> diff --git a/include/linux/shrinker.h b/include/linux/shrinker.h
>> index 224293b2dd06..43e6fcabbf51 100644
>> --- a/include/linux/shrinker.h
>> +++ b/include/linux/shrinker.h
>> @@ -70,6 +70,8 @@ struct shrinker {
>>   	int seeks;	/* seeks to recreate an obj */
>>   	unsigned flags;
>>   
>> +	void *private_data;
>> +
>>   	/* These are for internal use */
>>   	struct list_head list;
>>   #ifdef CONFIG_MEMCG
>
diff mbox series

Patch

diff --git a/include/linux/shrinker.h b/include/linux/shrinker.h
index 224293b2dd06..43e6fcabbf51 100644
--- a/include/linux/shrinker.h
+++ b/include/linux/shrinker.h
@@ -70,6 +70,8 @@  struct shrinker {
 	int seeks;	/* seeks to recreate an obj */
 	unsigned flags;
 
+	void *private_data;
+
 	/* These are for internal use */
 	struct list_head list;
 #ifdef CONFIG_MEMCG