Subject: Re: [PATCH] net: dccp: Replace GFP_ATOMIC with GFP_KERNEL in dccp_init

From: Jia-Ju Bai <[email-masked]>
Date: Mon, 9 Apr 2018 22:46:05 +0800

On 2018/4/9 22:42, Eric Dumazet wrote:
>
> On 04/09/2018 07:10 AM, Jia-Ju Bai wrote:
>> dccp_init() is never called in atomic context.
>> This function is only set as a parameter of module_init().
>>
>> Despite never getting called from atomic context,
>> dccp_init() calls __get_free_pages() with GFP_ATOMIC,
>> which waits busily for allocation.
> What do you mean by "waits busily" ?
>
> GFP_ATOMIC does not sleep, does not wait.

Sorry, I should modify it to "does not sleep".
Do you think it is okay?

Best wishes,
Jia-Ju Bai