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| author |   Rusty Russell <rusty@rustcorp.com.au> | 2008-12-13 21:20:28 +1030 |
|---|---|---|
| committer | Rusty Russell <rusty@rustcorp.com.au> | 2008-12-13 21:20:28 +1030 |
| commit | 7be7585393d311866653564fbcd10a3232773c0b (patch) | |
| tree | 50399f8f3bd97d521f91bf2de30dd41c081e3321 /init | |
| parent | cpumask: Introduce cpumask_of_{node,pcibus} to replace {node,pcibus}_to_cpumask (diff) | |
| download | linux-dev-7be7585393d311866653564fbcd10a3232773c0b.tar.xz linux-dev-7be7585393d311866653564fbcd10a3232773c0b.zip | |
cpumask: Use all NR_CPUS bits unless CONFIG_CPUMASK_OFFSTACK
Impact: futureproof as we convert more code to new APIs
The old cpumask operators treat all NR_CPUS bits as relevent, the new
ones use nr_cpumask_bits. For large NR_CPUS and small nr_cpu_ids, this
makes a difference.
However, mixing the two can cause problems with undefined bits. An
arch which sets CONFIG_CPUMASK_OFFSTACK should have converted across
to the new operators, so it's safe in that case.
(Thanks to Stephen Rothwell for bisecting the initial unused-bits bug,
and Mike Travis for this solution).
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: Mike Travis <travis@sgi.com>
Diffstat (limited to 'init')
0 files changed, 0 insertions, 0 deletions