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| author |   Rusty Russell <rusty@rustcorp.com.au> | 2009-01-10 21:58:09 -0800 |
|---|---|---|
| committer |   Ingo Molnar <mingo@elte.hu> | 2009-01-30 15:47:34 +0100 |
| commit | 4ab0a9409af5fad74ad1fc9e46d5a8b460f353e9 (patch) | |
| tree | d6c5bba1ffb35c5655a736d6d736d086ed3316eb /kernel/smp.c | |
| parent | signals, debug: fix BUG: using smp_processor_id() in preemptible code in print_fatal_signal() (diff) | |
| download | linux-dev-4ab0a9409af5fad74ad1fc9e46d5a8b460f353e9.tar.xz linux-dev-4ab0a9409af5fad74ad1fc9e46d5a8b460f353e9.zip | |
cpumask: convert lib/smp_processor_id to new cpumask ops
Impact: fix debug_smp_processor_id() for CONFIG_CPUMASK_OFFSTACK=y
The scheduler now uses the new cpumask API, which deals up to
nr_cpumask_bits, whereas the API used NR_CPUS bits.
If CONFIG_CPUMASK_OFFSTACK=y these two are not equal, so the top bits
are undefined. Leading to bug 12518 "BUG: using smp_processor_id() in
preemptible [00000000] code: dellWirelessCtl/..."
The fix is simple: use the modern API in the check.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Mike Travis <travis@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/smp.c')
0 files changed, 0 insertions, 0 deletions