cpumask: convert kernel trace functions

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Impact: Reduce future memory usage, use new cpumask API.

(Eventually, cpumask_var_t will be allocated based on nr_cpu_ids, not NR_CPUS).

Convert kernel trace functions to use struct cpumask API:
1) Use cpumask_copy/cpumask_test_cpu/for_each_cpu.
2) Use cpumask_var_t and alloc_cpumask_var/free_cpumask_var everywhere.
3) Use on_each_cpu instead of playing with current->cpus_allowed.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Mike Travis <travis@sgi.com>
Acked-by: Steven Rostedt <rostedt@goodmis.org>

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This commit is contained in:

Rusty Russell 2009-01-01 10:12:22 +10:30

parent 333af15341

commit 9e01c1b74c

3 changed files with 64 additions and 51 deletions

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42

kernel/trace/ring_buffer.c

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60

kernel/trace/trace.c

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13

kernel/trace/trace_sysprof.c

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