Peter Zijlstra 70201a4e36 mm/tlb: Remove tlb_remove_table() non-concurrent condition ...

commit a6f572084f upstream.

Will noted that only checking mm_users is incorrect; we should also
check mm_count in order to cover CPUs that have a lazy reference to
this mm (and could do speculative TLB operations).

If removing this turns out to be a performance issue, we can
re-instate a more complete check, but in tlb_table_flush() eliding the
call_rcu_sched().

Fixes: 2672391169 ("mm, powerpc: move the RCU page-table freeing into generic code")
Reported-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Rik van Riel <riel@surriel.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: David Miller <davem@davemloft.net>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2018-09-09 20:04:34 +02:00

..

kasan

kasan: fix shadow_size calculation error in kasan_module_alloc

2018-08-24 13:26:58 +02:00

backing-dev.c

writeback: fix the wrong congested state variable definition

2018-04-08 11:51:56 +02:00

balloon_compaction.c

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bootmem.c

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cleancache.c

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cma_debug.c

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cma.c

cma: fix calculation of aligned offset

2018-01-31 12:06:09 +01:00

cma.h

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compaction.c

mm/compaction: pass only pageblock aligned range to pageblock_pfn_to_page

2018-01-17 09:35:26 +01:00

debug-pagealloc.c

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debug.c

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dmapool.c

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early_ioremap.c

mm/early_ioremap: Fix boot hang with earlyprintk=efi,keep

2018-02-25 11:03:41 +01:00

fadvise.c

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failslab.c

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filemap.c

mm: filemap: avoid unnecessary calls to lock_page when waiting for IO to complete during a read

2018-05-26 08:48:54 +02:00

frame_vector.c

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frontswap.c

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gup.c

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highmem.c

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huge_memory.c

thp: fix MADV_DONTNEED vs. numa balancing race

2017-12-16 10:33:50 +01:00

hugetlb_cgroup.c

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hugetlb.c

mm: hugetlb: yield when prepping struct pages

2018-07-11 16:03:48 +02:00

hwpoison-inject.c

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init-mm.c

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internal.h

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interval_tree.c

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Kconfig

mm: don't allow deferred pages with NEED_PER_CPU_KM

2018-05-26 08:48:55 +02:00

Kconfig.debug

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kmemcheck.c

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kmemleak-test.c

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kmemleak.c

mm/kmemleak.c: wait for scan completion before disabling free

2018-05-30 07:49:06 +02:00

ksm.c

mm/ksm: fix interaction with THP

2018-05-30 07:49:08 +02:00

list_lru.c

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maccess.c

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madvise.c

mm/madvise.c: fix madvise() infinite loop under special circumstances

2017-12-05 11:22:50 +01:00

Makefile

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memblock.c

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memcontrol.c

mm: memcg: fix use after free in mem_cgroup_iter()

2018-07-25 10:18:16 +02:00

memory_hotplug.c

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memory-failure.c

hwpoison, memcg: forcibly uncharge LRU pages

2018-01-31 12:06:09 +01:00

memory.c

mm/tlb: Remove tlb_remove_table() non-concurrent condition

2018-09-09 20:04:34 +02:00

mempolicy.c

mm/mempolicy.c: avoid use uninitialized preferred_node

2018-05-30 07:49:05 +02:00

mempool.c

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memtest.c

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migrate.c

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mincore.c

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mlock.c

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mm_init.c

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mmap.c

mmap: relax file size limit for regular files

2018-06-13 16:15:27 +02:00

mmu_context.c

mm/mmu_context, sched/core: Fix mmu_context.h assumption

2017-12-25 14:22:09 +01:00

mmu_notifier.c

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mmzone.c

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mprotect.c

x86/speculation/l1tf: Disallow non privileged high MMIO PROT_NONE mappings

2018-08-15 17:42:10 +02:00

mremap.c

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msync.c

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nobootmem.c

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nommu.c

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oom_kill.c

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page_alloc.c

mm, page_alloc: do not break __GFP_THISNODE by zonelist reset

2018-07-11 16:03:51 +02:00

page_counter.c

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page_ext.c

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page_idle.c

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page_io.c

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page_isolation.c

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page_owner.c

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page-writeback.c

writeback: safer lock nesting

2018-04-24 09:32:12 +02:00

pagewalk.c

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percpu-km.c

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percpu-vm.c

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percpu.c

percpu: include linux/sched.h for cond_resched()

2018-05-16 10:06:46 +02:00

pgtable-generic.c

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process_vm_access.c

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quicklist.c

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readahead.c

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rmap.c

mm/rmap: batched invalidations should use existing api

2017-12-25 14:22:09 +01:00

shmem.c

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slab_common.c

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slab.c

mm, slab: reschedule cache_reap() on the same CPU

2018-04-24 09:32:05 +02:00

slab.h

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slob.c

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slub.c

mm/slub.c: add __printf verification to slab_err()

2018-08-06 16:24:30 +02:00

sparse-vmemmap.c

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sparse.c

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swap_cgroup.c

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swap_state.c

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swap.c

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swapfile.c

x86/speculation/l1tf: Limit swap file size to MAX_PA/2

2018-08-15 17:42:10 +02:00

truncate.c

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userfaultfd.c

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util.c

proc read mm's {arg,env}_{start,end} with mmap semaphore taken.

2018-05-26 08:48:55 +02:00

vmacache.c

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vmalloc.c

mm: vmalloc: avoid racy handling of debugobjects in vunmap

2018-08-06 16:24:30 +02:00

vmpressure.c

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vmscan.c

mm: fix the NULL mapping case in __isolate_lru_page()

2018-06-06 16:46:23 +02:00

vmstat.c

proc: much faster /proc/vmstat

2018-01-10 09:27:14 +01:00

workingset.c

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zbud.c

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zpool.c

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zsmalloc.c

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zswap.c

zswap: re-check zswap_is_full() after do zswap_shrink()

2018-09-05 09:18:36 +02:00