[dm-devel] [PATCH] sched: make struct task_struct::state 32-bit
Alexey Dobriyan
adobriyan at gmail.com
Tue Sep 3 16:23:03 UTC 2019
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.
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