Messages in this thread Patch in this message | | | From | Ricardo Neri <> | Subject | [PATCH v6 20/29] init/main: Delay initialization of the lockup detector after smp_init() | Date | Thu, 5 May 2022 16:59:59 -0700 |
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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 <ak@linux.intel.com> Cc: Nicholas Piggin <npiggin@gmail.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Stephane Eranian <eranian@google.com> Cc: "Ravi V. Shankar" <ravi.v.shankar@intel.com> Cc: iommu@lists.linux-foundation.org Cc: linuxppc-dev@lists.ozlabs.org Cc: x86@kernel.org Reviewed-by: Tony Luck <tony.luck@intel.com> Signed-off-by: Ricardo Neri <ricardo.neri-calderon@linux.intel.com> --- 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 98182c3c2c4b..62c52c9e4c2b 100644 --- a/init/main.c +++ b/init/main.c @@ -1600,9 +1600,11 @@ 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(); -- 2.17.1
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