Yang Shi 31bdba07f6 powerpc/64s/radix: don't need to broadcast IPI for radix pmd collapse flush ... commit bedf034169 upstream. The IPI broadcast is used to serialize against fast-GUP, but fast-GUP will move to use RCU instead of disabling local interrupts in fast-GUP. Using an IPI is the old-styled way of serializing against fast-GUP although it still works as expected now. And fast-GUP now fixed the potential race with THP collapse by checking whether PMD is changed or not. So IPI broadcast in radix pmd collapse flush is not necessary anymore. But it is still needed for hash TLB. Link: https://lkml.kernel.org/r/20220907180144.555485-2-shy828301@gmail.com Suggested-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> Signed-off-by: Yang Shi <shy828301@gmail.com> Acked-by: David Hildenbrand <david@redhat.com> Acked-by: Peter Xu <peterx@redhat.com> Cc: Christophe Leroy <christophe.leroy@csgroup.eu> Cc: Hugh Dickins <hughd@google.com> Cc: Jason Gunthorpe <jgg@nvidia.com> Cc: John Hubbard <jhubbard@nvidia.com> Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Nicholas Piggin <npiggin@gmail.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2022-10-12 09:53:26 +02:00
..
book3s32	powerpc/32: Set an IBAT covering up to _einittext during init	2022-08-25 11:40:43 +02:00
book3s64	powerpc/64s/radix: don't need to broadcast IPI for radix pmd collapse flush	2022-10-12 09:53:26 +02:00
kasan	powerpc/kasan: Fix early region not updated correctly	2022-04-08 14:24:03 +02:00
nohash	powerpc/32: Call mmu_mark_initmem_nx() regardless of data block mapping.	2022-08-17 14:24:12 +02:00
ptdump	powerpc/ptdump: Fix display of RW pages on FSL_BOOK3E	2022-08-17 14:22:58 +02:00
Makefile	…
cacheflush.c	…
copro_fault.c	…
dma-noncoherent.c	…
drmem.c	…
fault.c	powerpc/64s: Don't use DSISR for SLB faults	2022-04-08 14:23:38 +02:00
hugetlbpage.c	…
init-common.c	…
init_32.c	…
init_64.c	…
ioremap.c	mm/vmalloc: remove unmap_kernel_range	2021-04-30 11:20:40 -07:00
ioremap_32.c	powerpc/mm: Leave a gap between early allocated IO areas	2021-06-25 00:07:10 +10:00
ioremap_64.c	powerpc/mm: Leave a gap between early allocated IO areas	2021-06-25 00:07:10 +10:00
maccess.c	…
mem.c	powerpc/memhotplug: Add add_pages override for PPC	2022-07-07 17:53:28 +02:00
mmap.c	…
mmu_context.c	powerpc/mm: Switch obsolete dssall to .long	2022-06-14 18:36:27 +02:00
mmu_decl.h	…
numa.c	…
pageattr.c	powerpc/set_memory: Avoid spinlock recursion in change_page_attr()	2022-04-13 20:59:05 +02:00
pgtable-frag.c	…
pgtable.c	…
pgtable_32.c	powerpc/32: Call mmu_mark_initmem_nx() regardless of data block mapping.	2022-08-17 14:24:12 +02:00
pgtable_64.c	…
slice.c	…