Messages in this thread | | | Date | Tue, 13 May 2003 17:15:36 -0700 | From | William Lee Irwin III <> | Subject | Re: 2.5.69-mm4 |
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On Mon, May 12, 2003 at 10:55:04PM -0700, Andrew Morton wrote: > ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.5/2.5.69/2.5.69-mm4/ > Lots of small things. > thread-info-in-task_struct.patch > allow thread_info to be allocated as part of task_struct
AIUI the task_cache is meant to prevent certain task_t (dear gawd I can't stand those _struct suffixes) refcounting pathologies because the task_t has its final put done by the task itself or something on that order, so it may be better for ia64 to adapt the task_cache to their purposes instead of wiping it entirely. Also, making the task_cache treatment uniform apart from its declaration would allow the #ifdef to be shoved in a header.
Alternatively, one could alter the timing of the final put on a task_t so as to handle it similarly to the final mmput() (though here, too it might be more sightly to #ifdef the necessary bits in headers).
I think there are already outstanding task_t refcounting bugs, so I'm not entirely sure where we stand wrt. changing final put mechanics.
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