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Paul E. McKenney 08df477434 mm/ksm: Remove now-redundant smp_read_barrier_depends() 
Because READ_ONCE() now implies smp_read_barrier_depends(), the
smp_read_barrier_depends() in get_ksm_page() is now redundant.
This commit removes it and updates the comments.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
Cc: Claudio Imbrenda <imbrenda@linux.vnet.ibm.com>
Cc: <linux-mm@kvack.org>
2017-12-04 10:52:56 -08:00
..
kasan
slab, slub, slob: add slab_flags_t
2017-11-15 18:21:01 -08:00
backing-dev.c
backing-dev: kill unused pdflush_proc_obsolete()
2017-10-06 08:15:15 -06:00
balloon_compaction.c
virtio_balloon: fix deadlock on OOM
2017-11-14 23:57:38 +02:00
bootmem.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
cleancache.c
fs: switch ->s_uuid to uuid_t
2017-06-05 16:59:12 +02:00
cma_debug.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
cma.c
mm/cma.c: change pr_info to pr_err for cma_alloc fail log
2017-11-15 18:21:03 -08:00
cma.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
compaction.c
mm, compaction: remove unneeded pageblock_skip_persistent() checks
2017-11-17 16:10:00 -08:00
debug_page_ref.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
debug.c
mm: consolidate page table accounting
2017-11-15 18:21:04 -08:00
dmapool.c
lib/vsprintf.c: remove %Z support
2017-02-27 18:43:47 -08:00
early_ioremap.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
fadvise.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
failslab.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
filemap.c
AFS development
2017-11-16 11:41:22 -08:00
frame_vector.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
frontswap.c
mm, frontswap: convert frontswap_enabled to static key
2016-07-26 16:19:19 -07:00
gup_benchmark.c
mm: add infrastructure for get_user_pages_fast() benchmarking
2017-11-17 16:10:04 -08:00
gup.c
Merge branch 'x86/urgent' into x86/mm, to pick up fixes
2017-10-20 13:06:52 +02:00
highmem.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
hmm.c
mm/hmm: remove redundant variable align_end
2017-11-15 18:21:07 -08:00
huge_memory.c
mm: consolidate page table accounting
2017-11-15 18:21:04 -08:00
hugetlb_cgroup.c
mm, hugetlb_cgroup: round limit_in_bytes down to hugepage size
2016-05-20 17:58:30 -07:00
hugetlb.c
mm/mmu_notifier: avoid double notification when it is useless
2017-11-15 18:21:03 -08:00
hwpoison-inject.c
mm: hwpoison: call shake_page() unconditionally
2017-05-03 15:52:12 -07:00
init-mm.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
internal.h
mm, compaction: split off flag for not updating skip hints
2017-11-17 16:10:00 -08:00
interval_tree.c
lib/interval_tree: fast overlap detection
2017-09-08 18:26:49 -07:00
Kconfig
mm: add infrastructure for get_user_pages_fast() benchmarking
2017-11-17 16:10:04 -08:00
Kconfig.debug
kmemcheck: rip it out
2017-11-15 18:21:05 -08:00
khugepaged.c
mm: introduce wrappers to access mm->nr_ptes
2017-11-15 18:21:04 -08:00
kmemcheck.c
kmemcheck: rip it out
2017-11-15 18:21:05 -08:00
kmemleak-test.c
mm: convert printk(KERN_<LEVEL> to pr_<level>
2016-03-17 15:09:34 -07:00
kmemleak.c
kmemcheck: remove annotations
2017-11-15 18:21:04 -08:00
ksm.c
mm/ksm: Remove now-redundant smp_read_barrier_depends()
2017-12-04 10:52:56 -08:00
list_lru.c
mm/list_lru.c: mark expected switch fall-through
2017-11-15 18:21:07 -08:00
maccess.c
x86: remove more uaccess_32.h complexity
2016-05-22 17:21:27 -07:00
madvise.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
Makefile
mm: add infrastructure for get_user_pages_fast() benchmarking
2017-11-17 16:10:04 -08:00
memblock.c
mm: define memblock_virt_alloc_try_nid_raw
2017-11-15 18:21:05 -08:00
memcontrol.c
mm: slabinfo: remove CONFIG_SLABINFO
2017-11-15 18:21:01 -08:00
memory_hotplug.c
memory hotplug: fix comments when adding section
2017-11-15 18:21:07 -08:00
memory-failure.c
mm, soft_offline: improve hugepage soft offlining error log
2017-11-15 18:21:05 -08:00
memory.c
mm: do not rely on preempt_count in print_vma_addr
2017-11-15 18:21:07 -08:00
mempolicy.c
mm, sysctl: make NUMA stats configurable
2017-11-15 18:21:07 -08:00
mempool.c
mm/mempool.c: use kmalloc_array_node()
2017-11-15 18:21:02 -08:00
memtest.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
migrate.c
mm/mmu_notifier: avoid call to invalidate_range() in range_end()
2017-11-15 18:21:03 -08:00
mincore.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
mlock.c
mm: mlock: remove lru_add_drain_all()
2017-11-15 18:21:07 -08:00
mm_init.c
mm: convert printk(KERN_<LEVEL> to pr_<level>
2016-03-17 15:09:34 -07:00
mmap.c
mm: introduce MAP_SHARED_VALIDATE, a mechanism to safely define new mmap flags
2017-11-03 06:26:22 -07:00
mmu_context.c
sched/headers: Prepare to move the task_lock()/unlock() APIs to <linux/sched/task.h>
2017-03-02 08:42:38 +01:00
mmu_notifier.c
mm/mmu_notifier: avoid call to invalidate_range() in range_end()
2017-11-15 18:21:03 -08:00
mmzone.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
mprotect.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
mremap.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
msync.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
nobootmem.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
nommu.c
Merge branch 'work.set_fs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2017-09-14 18:13:32 -07:00
oom_kill.c
mm: simplify nodemask printing
2017-11-15 18:21:07 -08:00
page_alloc.c
mm, compaction: split off flag for not updating skip hints
2017-11-17 16:10:00 -08:00
page_counter.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
page_ext.c
mm/page_ext.c: check if page_ext is not prepared
2017-11-15 18:21:07 -08:00
page_idle.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
page_io.c
mm, swap: skip swapcache for swapin of synchronous device
2017-11-15 18:21:02 -08:00
page_isolation.c
mm: distinguish CMA and MOVABLE isolation in has_unmovable_pages()
2017-11-15 18:21:02 -08:00
page_owner.c
mm/page_owner.c: reduce page_owner structure size
2017-11-15 18:21:03 -08:00
page_poison.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
page_vma_mapped.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
page-writeback.c
block/laptop_mode: Convert timers to use timer_setup()
2017-11-21 15:46:44 -08:00
pagewalk.c
mm/pagewalk.c: report holes in hugetlb ranges
2017-11-15 13:12:08 -08:00
percpu-internal.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
percpu-km.c
percpu: replace area map allocator with bitmap
2017-07-26 17:41:05 -04:00
percpu-stats.c
percpu: fix starting offset for chunk statistics traversal
2017-09-27 14:45:57 -07:00
percpu-vm.c
mm: remove __GFP_COLD
2017-11-15 18:21:06 -08:00
percpu.c
Merge branch 'for-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu
2017-11-15 14:17:11 -08:00
pgtable-generic.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
process_vm_access.c
sched/headers: Prepare for new header dependencies before moving code to <linux/sched/mm.h>
2017-03-02 08:42:28 +01:00
quicklist.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
readahead.c
mm: don't cap request size based on read-ahead setting
2016-12-12 18:55:08 -08:00
rmap.c
mm: remove cold parameter from free_hot_cold_page*
2017-11-15 18:21:06 -08:00
rodata_test.c
mm: fix RODATA_TEST failure "rodata_test: test data was not read only"
2017-10-03 17:54:24 -07:00
shmem.c
mm: shmem: remove unused info variable
2017-11-17 16:10:00 -08:00
slab_common.c
kmemcheck: stop using GFP_NOTRACK and SLAB_NOTRACK
2017-11-15 18:21:04 -08:00
slab.c
kmemcheck: stop using GFP_NOTRACK and SLAB_NOTRACK
2017-11-15 18:21:04 -08:00
slab.h
kmemcheck: stop using GFP_NOTRACK and SLAB_NOTRACK
2017-11-15 18:21:04 -08:00
slob.c
slab, slub, slob: add slab_flags_t
2017-11-15 18:21:01 -08:00
slub.c
kmemcheck: rip it out
2017-11-15 18:21:05 -08:00
sparse-vmemmap.c
mm, sparse: do not swamp log with huge vmemmap allocation failures
2017-11-15 18:21:07 -08:00
sparse.c
mm: stop zeroing memory during allocation in vmemmap
2017-11-15 18:21:05 -08:00
swap_cgroup.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
swap_slots.c
mm/swap_slots.c: fix race conditions in swap_slots cache init
2017-11-15 18:21:03 -08:00
swap_state.c
mm: remove cold parameter for release_pages
2017-11-15 18:21:06 -08:00
swap.c
mm, pagevec: rename pagevec drained field
2017-11-15 18:21:06 -08:00
swapfile.c
mm: swap: SWP_SYNCHRONOUS_IO: skip swapcache only if swapped page has no other reference
2017-11-15 18:21:02 -08:00
truncate.c
mm, pagevec: remove cold parameter for pagevecs
2017-11-15 18:21:06 -08:00
usercopy.c
mm/usercopy: Drop extra is_vmalloc_or_module() check
2017-04-05 12:30:18 -07:00
userfaultfd.c
userfaultfd: shmem: wire up shmem_mfill_zeropage_pte
2017-09-06 17:27:28 -07:00
util.c
mm: rename global_page_state to global_zone_page_state
2017-09-06 17:27:29 -07:00
vmacache.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
vmalloc.c
Revert "vmalloc: back off when the current task is killed"
2017-10-13 16:18:32 -07:00
vmpressure.c
mm, vmpressure: pass-through notification support
2017-07-10 16:32:31 -07:00
vmscan.c
mm: remove cold parameter from free_hot_cold_page*
2017-11-15 18:21:06 -08:00
vmstat.c
mm, sysctl: make NUMA stats configurable
2017-11-15 18:21:07 -08:00
workingset.c
mm, truncate: do not check mapping for every page being truncated
2017-11-15 18:21:06 -08:00
z3fold.c
mm/z3fold.c: use kref to prevent page free/compact race
2017-11-17 16:10:00 -08:00
zbud.c
mm/zbud.c: use list_last_entry() instead of list_tail_entry()
2016-01-15 11:40:52 -08:00
zpool.c
mm: zsmalloc: constify struct zs_pool name
2015-11-06 17:50:42 -08:00
zsmalloc.c
zsmalloc: calling zs_map_object() from irq is a bug
2017-11-15 18:21:03 -08:00
zswap.c
mm/zswap.c: delete an error message for a failed memory allocation in zswap_dstmem_prepare()
2017-07-06 16:24:35 -07:00