Thiago Jung Bauermann 6b2c08f989 powerpc: Don't call lockdep_assert_cpus_held() from arch_update_cpu_topology() ... It turns out that not all paths calling arch_update_cpu_topology() hold cpu_hotplug_lock, but that's OK because those paths can't race with any concurrent hotplug events. Warnings were reported with the following trace: lockdep_assert_cpus_held arch_update_cpu_topology sched_init_domains sched_init_smp kernel_init_freeable kernel_init ret_from_kernel_thread Which is safe because it's called early in boot when hotplug is not live yet. And also this trace: lockdep_assert_cpus_held arch_update_cpu_topology partition_sched_domains cpuset_update_active_cpus sched_cpu_deactivate cpuhp_invoke_callback cpuhp_down_callbacks cpuhp_thread_fun smpboot_thread_fn kthread ret_from_kernel_thread Which is safe because it's called as part of CPU hotplug, so although we don't hold the CPU hotplug lock, there is another thread driving the CPU hotplug operation which does hold the lock, and there is no race. Thanks to tglx for deciphering it for us. Fixes: 3e401f7a2e ("powerpc: Only obtain cpu_hotplug_lock if called by rtasd") Signed-off-by: Thiago Jung Bauermann <bauerman@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>		2017-10-10 21:02:04 +11:00
..
8xx_mmu.c	powerpc/8xx: mark init functions with __init	2017-08-15 22:55:54 +10:00
40x_mmu.c
44x_mmu.c
copro_fault.c
dma-noncoherent.c
dump_hashpagetable.c	powerpc/mm: Use seq_putc() in two functions	2017-09-01 16:42:52 +10:00
dump_linuxpagetables.c	powerpc/mm: Use seq_putc() in two functions	2017-09-01 16:42:52 +10:00
fault.c	powerpc/8xx: Use symbolic names for DSISR bits in DSI	2017-08-10 23:32:20 +10:00
fsl_booke_mmu.c
hash64_4k.c
hash64_64k.c
hash_low_32.S	powerpc: fix location of two EXPORT_SYMBOL	2017-09-01 16:42:45 +10:00
hash_native_64.c	powerpc/mm: Wire up hpte_removebolted for powernv	2017-07-02 20:40:28 +10:00
hash_utils_64.c	powerpc/mm: Use mm_is_thread_local() instread of open-coding	2017-08-23 22:27:45 +10:00
highmem.c
hugepage-hash64.c
hugetlbpage-book3e.c
hugetlbpage-hash64.c
hugetlbpage-radix.c
hugetlbpage.c	powerpc/mm: Use mm_is_thread_local() instread of open-coding	2017-08-23 22:27:45 +10:00
init_32.c	powerpc/mm/hugetlb: Add support for reserving gigantic huge pages via kernel command line	2017-08-16 14:56:12 +10:00
init_64.c	powerpc/mm: Fix section mismatch warning in early_check_vec5()	2017-08-10 23:40:51 +10:00
init-common.c
Makefile	powerpc/mm: Make switch_mm_irqs_off() out of line	2017-08-23 22:48:51 +10:00
mem.c	powerpc/8xx: Getting rid of remaining use of CONFIG_8xx	2017-08-10 23:32:12 +10:00
mmap.c	powerpc,mmap: properly account for stack randomization in mmap_base	2017-07-12 16:26:03 -07:00
mmu_context_book3s64.c	powerpc/mm: Optimize detection of thread local mm's	2017-08-23 22:28:38 +10:00
mmu_context_hash32.c
mmu_context_iommu.c
mmu_context_nohash.c
mmu_context.c	powerpc/mm: Make switch_mm_irqs_off() out of line	2017-08-23 22:48:51 +10:00
mmu_decl.h	powerpc/8xx: Getting rid of remaining use of CONFIG_8xx	2017-08-10 23:32:12 +10:00
numa.c	powerpc: Don't call lockdep_assert_cpus_held() from arch_update_cpu_topology()	2017-10-10 21:02:04 +11:00
pgtable_32.c	powerpc/mm: Call flush_tlb_kernel_range with interrupts enabled	2017-10-04 22:15:30 +11:00
pgtable_64.c	powerpc/mm/book3s64: Make KERN_IO_START a variable	2017-08-08 19:37:04 +10:00
pgtable-book3e.c
pgtable-book3s64.c	powerpc/mm/cxl: Add the fault handling cpu to mm cpumask	2017-08-17 23:31:52 +10:00
pgtable-hash64.c	powerpc/mm: Use mm_is_thread_local() instread of open-coding	2017-08-23 22:27:45 +10:00
pgtable-radix.c	powerpc/mm/radix: Prettify mapped memory range print out	2017-08-31 14:26:42 +10:00
pgtable.c
ppc_mmu_32.c
slb_low.S	powerpc/mm/hash64: Make vmalloc 56T on hash	2017-08-08 19:37:05 +10:00
slb.c
slice.c
subpage-prot.c	powerpc/mm/hash: Free the subpage_prot_table correctly	2017-07-27 13:05:50 +10:00
tlb_hash32.c
tlb_hash64.c	powerpc/mm: Use mm_is_thread_local() instread of open-coding	2017-08-23 22:27:45 +10:00
tlb_low_64e.S
tlb_nohash_low.S	powerpc/8xx: Getting rid of remaining use of CONFIG_8xx	2017-08-10 23:32:12 +10:00
tlb_nohash.c
tlb-radix.c	Merge branch 'fixes' into next	2017-08-23 22:20:10 +10:00
vphn.c
vphn.h