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generic: reduce stack pressure in sched_affinity

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* Modify sched_affinity functions to pass cpumask_t variables by reference
    instead of by value.

  * Use new set_cpus_allowed_ptr function.

Depends on:
	[sched-devel]: sched: add new set_cpus_allowed_ptr function

Cc: Paul Jackson <pj@sgi.com>
Cc: Cliff Wickman <cpw@sgi.com>
Signed-off-by: Mike Travis <travis@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Mike Travis 2008-04-04 18:11:08 -07:00 • committed by Ingo Molnar
parent f9a86fcbbb
commit b53e921ba1
5 changed files with 30 additions and 29 deletions
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2
kernel/compat.c
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@ -445,7 +445,7 @@ asmlinkage long compat_sys_sched_setaffinity(compat_pid_t pid,
if (retval)
return retval;
return sched_setaffinity(pid, new_mask);
return sched_setaffinity(pid, &new_mask);
}
asmlinkage long compat_sys_sched_getaffinity(compat_pid_t pid, unsigned int len,