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| author | Will Deacon <will.deacon@arm.com> | 2015-09-11 15:31:24 +0100 |
|---|---|---|
| committer | Will Deacon <will.deacon@arm.com> | 2015-09-17 11:57:02 +0100 |
| commit | e56d82a116176f7af9d642b560abbbd3a2b68013 (patch) | |
| tree | 68ce5a9e344739c7b60273e98d68ad97a2249a6f /arch/arm64/kernel/debug-monitors.c | |
| parent | d10bcd473301888f957ec4b6b12aa3621be78d59 (diff) | |
| download | linux-e56d82a116176f7af9d642b560abbbd3a2b68013.tar.bz2 | |
arm64: cpu hotplug: ensure we mask out CPU_TASKS_FROZEN in notifiers
We have a couple of CPU hotplug notifiers for resetting the CPU debug
state to a sane value when a CPU comes online.
This patch ensures that we mask out CPU_TASKS_FROZEN so that we don't
miss any online events occuring due to suspend/resume.
Acked-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'arch/arm64/kernel/debug-monitors.c')
| -rw-r--r-- | arch/arm64/kernel/debug-monitors.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm64/kernel/debug-monitors.c b/arch/arm64/kernel/debug-monitors.c index 9b3b62ac9c24..cebf78661a55 100644 --- a/arch/arm64/kernel/debug-monitors.c +++ b/arch/arm64/kernel/debug-monitors.c @@ -134,7 +134,7 @@ static int os_lock_notify(struct notifier_block *self, unsigned long action, void *data) { int cpu = (unsigned long)data; - if (action == CPU_ONLINE) + if ((action & ~CPU_TASKS_FROZEN) == CPU_ONLINE) smp_call_function_single(cpu, clear_os_lock, NULL, 1); return NOTIFY_OK; } |