diff options
author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2011-08-11 15:14:58 +0200 |
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committer | Clark Williams <williams@redhat.com> | 2012-04-10 16:40:39 -0500 |
commit | cb00c4686b50e7570c17941931684ab6c794c77c (patch) | |
tree | 1a67baa1bb421e58fce11879e93124755fd6cb05 /lib | |
parent | edcca136918a7dcd811bd09467dd0b2f65c0e597 (diff) |
sched: Generic migrate_disable
Make migrate_disable() be a preempt_disable() for !rt kernels. This
allows generic code to use it but still enforces that these code
sections stay relatively small.
A preemptible migrate_disable() accessible for general use would allow
people growing arbitrary per-cpu crap instead of clean these things
up.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-275i87sl8e1jcamtchmehonm@git.kernel.org
Diffstat (limited to 'lib')
-rw-r--r-- | lib/smp_processor_id.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/smp_processor_id.c b/lib/smp_processor_id.c index 0a846e736931..dbb1570de195 100644 --- a/lib/smp_processor_id.c +++ b/lib/smp_processor_id.c @@ -41,7 +41,7 @@ notrace unsigned int debug_smp_processor_id(void) printk(KERN_ERR "BUG: using smp_processor_id() in preemptible [%08x %08x] " "code: %s/%d\n", preempt_count() - 1, - current->migrate_disable, current->comm, current->pid); + __migrate_disabled(current), current->comm, current->pid); print_symbol("caller is %s\n", (long)__builtin_return_address(0)); dump_stack(); |