Certain implementations of the hardlockup detector require support for
Inter-Processor Interrupt shorthands. On x86, support for these can only
be determined after all the possible CPUs have booted once (in smp_init()).
Other architectures may not need such check.
lockup_detector_init() only performs the initializations of data structures
of the lockup detector. Hence, there are no dependencies on smp_init().
Cc: Andi Kleen <a...@linux.intel.com>
Cc: Nicholas Piggin <npig...@gmail.com>
Cc: Andrew Morton <a...@linux-foundation.org>
Cc: Stephane Eranian <eran...@google.com>
Cc: "Ravi V. Shankar" <ravi.v.shan...@intel.com>
Cc: io...@lists.linux-foundation.org
Cc: linuxppc-dev@lists.ozlabs.org
Reviewed-by: Tony Luck <tony.l...@intel.com>
Acked-by: Nicholas Piggin <npig...@gmail.com>
Signed-off-by: Ricardo Neri <ricardo.neri-calde...@linux.intel.com>
---
Changes since v6:
* None
Changes since v5:
* Introduced this patch
Changes since v4:
* N/A
Changes since v3:
* N/A
Changes since v2:
* N/A
Changes since v1:
* N/A
---
init/main.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/init/main.c b/init/main.c
index 4425d1783d5c..d0642a49e2e8 100644
--- a/init/main.c
+++ b/init/main.c
@@ -1620,9 +1620,11 @@ static noinline void __init kernel_init_freeable(void)
rcu_init_tasks_generic();
do_pre_smp_initcalls();
- lockup_detector_init();
smp_init();
+
+ lockup_detector_init();
+
sched_init_smp();
padata_init();
--
2.25.1
