]> pilppa.com Git - linux-2.6-omap-h63xx.git/commit
[CPUFREQ] Fix some more CPU hotplug locking.
authorDave Jones <davej@redhat.com>
Fri, 22 Sep 2006 23:15:23 +0000 (19:15 -0400)
committerDave Jones <davej@redhat.com>
Fri, 22 Sep 2006 23:15:23 +0000 (19:15 -0400)
commitddad65df0048e210c93640b59b3bad12701febb6
tree5530a3fbeef881c48ca02e491529d709dc812ea0
parent8adcc0c674004c0f9467031a93dc639c2b01411f
[CPUFREQ] Fix some more CPU hotplug locking.

Lukewarm IQ detected in hotplug locking
BUG: warning at kernel/cpu.c:38/lock_cpu_hotplug()
[<b0134a42>] lock_cpu_hotplug+0x42/0x65
[<b02f8af1>] cpufreq_update_policy+0x25/0xad
[<b0358756>] kprobe_flush_task+0x18/0x40
[<b0355aab>] schedule+0x63f/0x68b
[<b01377c2>] __link_module+0x0/0x1f
[<b0119e7d>] __cond_resched+0x16/0x34
[<b03560bf>] cond_resched+0x26/0x31
[<b0355b0e>] wait_for_completion+0x17/0xb1
[<f965c547>] cpufreq_stat_cpu_callback+0x13/0x20 [cpufreq_stats]
[<f9670074>] cpufreq_stats_init+0x74/0x8b [cpufreq_stats]
[<b0137872>] sys_init_module+0x91/0x174
[<b0102c81>] sysenter_past_esp+0x56/0x79

As there are other places that call cpufreq_update_policy without
the hotplug lock, it seems better to keep the hotplug locking
at the lower level for the time being until this is revamped.

Signed-off-by: Dave Jones <davej@redhat.com>
drivers/cpufreq/cpufreq_stats.c