Re: [PATCH 5/5] kernfs: Replace global kernfs_open_file_mutex with hashed mutexes.

From: Imran Khan
Date: Wed May 11 2022 - 05:59:05 EST


Hello Tejun,

On 6/5/22 6:05 am, Tejun Heo wrote:
> On Thu, Apr 28, 2022 at 03:54:31PM +1000, Imran Khan wrote:
>> +static void __init kernfs_mutex_init(void)
>> +{
>> + int count;
>> +
>> + for (count = 0; count < NR_KERNFS_LOCKS; count++)
>> + mutex_init(&kernfs_locks->open_file_mutex[count]);
>> +}
>
> Does this need to be a separate function?
>

Above, I have moved mutex initialization from kernfs_lock_init to a
separate function kernfs_mutex_init. Could you please let me know if I
am missing something here ?
>> +static void __init kernfs_lock_init(void)
>> +{
>> + kernfs_locks = kmalloc(sizeof(struct kernfs_global_locks), GFP_KERNEL);
>> + WARN_ON(!kernfs_locks);
>> +
>> + kernfs_mutex_init();
>> +}
>> +
>> void __init kernfs_init(void)
>> {
>> kernfs_node_cache = kmem_cache_create("kernfs_node_cache",
>
> Other than that minor nitpick,
>
> Acked-by: Tejun Heo <tj@xxxxxxxxxx>
>
> Thanks.
>

Thanks,
-- Imran