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(parent: a0e9024) | patch
sched: convert sys_sched_getaffinity() to cpumask_var_t.
authorRusty Russell <rusty@rustcorp.com.au>
Mon, 24 Nov 2008 16:05:11 +0000 (02:35 +1030)
committerIngo Molnar <mingo@elte.hu>
Mon, 24 Nov 2008 16:51:45 +0000 (17:51 +0100)
commitf17c860760927c2a8e41a021eab3317e4415e962
tree6b414506bd3822f0b3475d454a10f16025a5415ctree | snapshot
parenta0e902452da16b79d7c9230630ed8a595d14fa85commit | diff
sched: convert sys_sched_getaffinity() to cpumask_var_t.

Impact: stack usage reduction

Dynamically allocating cpumasks (when CONFIG_CPUMASK_OFFSTACK) saves
space in the stack.  cpumask_var_t is just a struct cpumask for
!CONFIG_CPUMASK_OFFSTACK.

Some jiggling here to make sure we always exit at the bottom (so we hit
the free_cpumask_var there).

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
kernel/sched.c diff | blob | history
Full containers within linux kernel