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author | Rusty Russell <rusty@rustcorp.com.au> | 2008-11-24 16:05:04 (GMT) |
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committer | Ingo Molnar <mingo@elte.hu> | 2008-11-24 16:50:57 (GMT) |
commit | 6c99e9ad47d9c082bd096f42fb49e397b05d58a8 (patch) | |
tree | 7b0adff66f353b173a3adc05b03b3279bef63c40 /kernel/time | |
parent | 758b2cdc6f6a22c702bd8f2344382fb1270b2161 (diff) | |
download | linux-fsl-qoriq-6c99e9ad47d9c082bd096f42fb49e397b05d58a8.tar.xz |
sched: convert struct sched_group/sched_domain cpumask_ts to variable bitmaps
Impact: (future) size reduction for large NR_CPUS.
We move the 'cpumask' member of sched_group to the end, so when we
kmalloc it we can do a minimal allocation: saves space for small
nr_cpu_ids but big CONFIG_NR_CPUS. Similar trick for 'span' in
sched_domain.
This isn't quite as good as converting to a cpumask_var_t, as some
sched_groups are actually static, but it's safer: we don't have to
figure out where to call alloc_cpumask_var/free_cpumask_var.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/time')
0 files changed, 0 insertions, 0 deletions