Peter Zijlstra 0ed1325967 mm/mmu_gather: invalidate TLB correctly on batch allocation failure and flush ... Architectures for which we have hardware walkers of Linux page table should flush TLB on mmu gather batch allocation failures and batch flush. Some architectures like POWER supports multiple translation modes (hash and radix) and in the case of POWER only radix translation mode needs the above TLBI. This is because for hash translation mode kernel wants to avoid this extra flush since there are no hardware walkers of linux page table. With radix translation, the hardware also walks linux page table and with that, kernel needs to make sure to TLB invalidate page walk cache before page table pages are freed. More details in commit d86564a2f0 ("mm/tlb, x86/mm: Support invalidating TLB caches for RCU_TABLE_FREE") The changes to sparc are to make sure we keep the old behavior since we are now removing HAVE_RCU_TABLE_NO_INVALIDATE. The default value for tlb_needs_table_invalidate is to always force an invalidate and sparc can avoid the table invalidate. Hence we define tlb_needs_table_invalidate to false for sparc architecture. Link: http://lkml.kernel.org/r/20200116064531.483522-3-aneesh.kumar@linux.ibm.com Fixes: a46cc7a90f ("powerpc/mm/radix: Improve TLB/PWC flushes") Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> Acked-by: Michael Ellerman <mpe@ellerman.id.au> [powerpc] Cc: <stable@vger.kernel.org> [4.14+] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2020-02-04 03:05:26 +00:00
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kasan	RISC-V Patches for the 5.6 Merge Window, Part 1	2020-01-31 11:23:29 -08:00
backing-dev.c	memcg: fix a crash in wb_workfn when a device disappears	2020-01-31 10:30:36 -08:00
balloon_compaction.c
cleancache.c
cma_debug.c
cma.c
cma.h
compaction.c
debug_page_ref.c
debug.c	mm/hotplug: silence a lockdep splat with printk()	2020-01-31 10:30:39 -08:00
dmapool.c
early_ioremap.c	mm/early_ioremap.c: use %pa to print resource_size_t variables	2020-01-31 10:30:38 -08:00
fadvise.c
failslab.c
filemap.c	mm/filemap.c: clean up filemap_write_and_wait()	2020-01-31 10:30:37 -08:00
frame_vector.c
frontswap.c
gup_benchmark.c	mm/gup_benchmark: use proper FOLL_WRITE flags instead of hard-coding "1"	2020-01-31 10:30:38 -08:00
gup.c	mm, tree-wide: rename put_user_page*() to unpin_user_page*()	2020-01-31 10:30:38 -08:00
highmem.c
hmm.c	mm: pagewalk: add 'depth' parameter to pte_hole	2020-02-04 03:05:25 +00:00
huge_memory.c	Merge branch 'akpm' (patches from Andrew)	2020-01-31 12:16:36 -08:00
hugetlb_cgroup.c
hugetlb.c
hwpoison-inject.c
init-mm.c
internal.h
interval_tree.c
Kconfig
Kconfig.debug	mm: add generic ptdump	2020-02-04 03:05:25 +00:00
khugepaged.c
kmemleak-test.c
kmemleak.c	mm/kmemleak: turn kmemleak_lock and object->lock to raw_spinlock_t	2020-01-31 10:30:36 -08:00
ksm.c
list_lru.c
maccess.c
madvise.c
Makefile	mm: add generic ptdump	2020-02-04 03:05:25 +00:00
mapping_dirty_helpers.c
memblock.c	memblock: Use __func__ in remaining memblock_dbg() call sites	2020-01-31 10:30:38 -08:00
memcontrol.c	mm/memcontrol.c: cleanup some useless code	2020-01-31 10:30:38 -08:00
memfd.c
memory_hotplug.c	mm/memory_hotplug: drop valid_start/valid_end from test_pages_in_a_zone()	2020-02-04 03:05:23 +00:00
memory-failure.c
memory.c
mempolicy.c	mm/mempolicy.c: fix out of bounds write in mpol_parse_str()	2020-01-31 10:30:36 -08:00
mempool.c
memremap.c	mm/memory_hotplug: poison memmap in remove_pfn_range_from_zone()	2020-02-04 03:05:23 +00:00
memtest.c
migrate.c	mm: pagewalk: add 'depth' parameter to pte_hole	2020-02-04 03:05:25 +00:00
mincore.c	mm: pagewalk: add 'depth' parameter to pte_hole	2020-02-04 03:05:25 +00:00
mlock.c
mm_init.c
mmap.c	mm/mmap.c: get rid of odd jump labels in find_mergeable_anon_vma()	2020-01-31 10:30:39 -08:00
mmu_context.c
mmu_gather.c	mm/mmu_gather: invalidate TLB correctly on batch allocation failure and flush	2020-02-04 03:05:26 +00:00
mmu_notifier.c
mmzone.c
mprotect.c
mremap.c
msync.c
nommu.c
oom_kill.c	mm, oom: dump stack of victim when reaping failed	2020-01-31 10:30:38 -08:00
page_alloc.c	mm/memmap_init: update variable name in memmap_init_zone	2020-02-04 03:05:23 +00:00
page_counter.c
page_ext.c
page_idle.c
page_io.c
page_isolation.c	mm/page_isolation: fix potential warning from user	2020-01-31 10:30:39 -08:00
page_owner.c
page_poison.c
page_vma_mapped.c	mm/page_vma_mapped.c: explicitly compare pfn for normal, hugetlbfs and THP page	2020-01-31 10:30:38 -08:00
page-writeback.c
pagewalk.c	x86: mm: avoid allocating struct mm_struct on the stack	2020-02-04 03:05:25 +00:00
percpu-internal.h
percpu-km.c
percpu-stats.c
percpu-vm.c
percpu.c
pgtable-generic.c
process_vm_access.c	mm, tree-wide: rename put_user_page*() to unpin_user_page*()	2020-01-31 10:30:38 -08:00
ptdump.c	x86: mm: avoid allocating struct mm_struct on the stack	2020-02-04 03:05:25 +00:00
readahead.c
rmap.c
rodata_test.c
shmem.c
shuffle.c
shuffle.h
slab_common.c	mm: remove __krealloc	2020-02-04 03:05:24 +00:00
slab.c
slab.h
slob.c
slub.c	mm/slub.c: avoid slub allocation while holding list_lock	2020-01-31 10:30:36 -08:00
sparse-vmemmap.c
sparse.c	mm: factor out next_present_section_nr()	2020-02-04 03:05:23 +00:00
swap_cgroup.c
swap_slots.c
swap_state.c
swap.c	mm: devmap: refactor 1-based refcounting for ZONE_DEVICE pages	2020-01-31 10:30:37 -08:00
swapfile.c	mm/swapfile.c: swap_next should increase position index	2020-01-31 10:30:38 -08:00
truncate.c
usercopy.c
userfaultfd.c
util.c
vmacache.c
vmalloc.c
vmpressure.c
vmscan.c	mm/vmscan: remove unused RECLAIM_OFF/RECLAIM_ZONE	2020-01-31 10:30:38 -08:00
vmstat.c
workingset.c
z3fold.c
zbud.c
zpool.c
zsmalloc.c
zswap.c	zswap: potential NULL dereference on error in init_zswap()	2020-01-31 10:30:39 -08:00