Re: [PATCH] sched: make struct task_struct::state 32-bit

From: Valentin Schneider
Date: Tue Sep 03 2019 - 12:33:49 EST




On 03/09/2019 17:23, Alexey Dobriyan wrote:
> On Tue, Sep 03, 2019 at 12:02:38AM +0100, Valentin Schneider wrote:
>> struct task_struct {
>> struct thread_info thread_info; /* 0 24 */
>> volatile int state; /* 24 4 */
>>
>> /* XXX 4 bytes hole, try to pack */
>>
>> void * stack; /* 32 8 */
>>
>> Though seeing as this is also the boundary of the randomized layout we can't
>> really do much better without changing the boundary itself. So much for
>> cacheline use :/
>
> Cacheline use of task_struct is pretty hopeless because of all the ifdefs.
>

Yeah I figured, then had a minute of silence for those forsaken bytes.