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remarkable-linux/mm
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Yasuaki Ishimatsu 46723bfa54 memory-hotplug: implement register_page_bootmem_info_section of sparse-vmemmap 
For removing memmap region of sparse-vmemmap which is allocated bootmem,
memmap region of sparse-vmemmap needs to be registered by
get_page_bootmem().  So the patch searches pages of virtual mapping and
registers the pages by get_page_bootmem().

NOTE: register_page_bootmem_memmap() is not implemented for ia64,
      ppc, s390, and sparc.  So introduce CONFIG_HAVE_BOOTMEM_INFO_NODE
      and revert register_page_bootmem_info_node() when platform doesn't
      support it.

      It's implemented by adding a new Kconfig option named
      CONFIG_HAVE_BOOTMEM_INFO_NODE, which will be automatically selected
      by memory-hotplug feature fully supported archs(currently only on
      x86_64).

      Since we have 2 config options called MEMORY_HOTPLUG and
      MEMORY_HOTREMOVE used for memory hot-add and hot-remove separately,
      and codes in function register_page_bootmem_info_node() are only
      used for collecting infomation for hot-remove, so reside it under
      MEMORY_HOTREMOVE.

      Besides page_isolation.c selected by MEMORY_ISOLATION under
      MEMORY_HOTPLUG is also such case, move it too.

[mhocko@suse.cz: put register_page_bootmem_memmap inside CONFIG_MEMORY_HOTPLUG_SPARSE]
[linfeng@cn.fujitsu.com: introduce CONFIG_HAVE_BOOTMEM_INFO_NODE and revert register_page_bootmem_info_node()]
[mhocko@suse.cz: remove the arch specific functions without any implementation]
[linfeng@cn.fujitsu.com: mm/Kconfig: move auto selects from MEMORY_HOTPLUG to MEMORY_HOTREMOVE as needed]
[rientjes@google.com: fix defined but not used warning]
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Signed-off-by: Tang Chen <tangchen@cn.fujitsu.com>
Reviewed-by: Wu Jianguo <wujianguo@huawei.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Jiang Liu <jiang.liu@huawei.com>
Cc: Jianguo Wu <wujianguo@huawei.com>
Cc: Kamezawa Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Lai Jiangshan <laijs@cn.fujitsu.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Michal Hocko <mhocko@suse.cz>
Signed-off-by: Lin Feng <linfeng@cn.fujitsu.com>
Signed-off-by: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-02-23 17:50:12 -08:00
..
backing-dev.c bdi: allow block devices to say that they require stable page writes 2013-02-21 17:22:19 -08:00
balloon_compaction.c mm: introduce a common interface for balloon pages mobility 2012-12-11 17:22:26 -08:00
bootmem.c mm: Add alloc_bootmem_low_pages_nopanic() 2013-01-29 19:32:59 -08:00
bounce.c block: optionally snapshot page contents to provide stable pages during write 2013-02-21 17:22:20 -08:00
cleancache.c
compaction.c mm: compaction: make __compact_pgdat() and compact_pgdat() return void 2013-02-23 17:50:10 -08:00
debug-pagealloc.c
dmapool.c dmapool: make DMAPOOL_DEBUG detect corruption of free marker 2012-12-11 17:22:24 -08:00
fadvise.c
failslab.c
filemap.c mm: only enforce stable page writes if the backing device requires it 2013-02-21 17:22:19 -08:00
filemap_xip.c
fremap.c mm: introduce VM_POPULATE flag to better deal with racy userspace programs 2013-02-23 17:50:11 -08:00
frontswap.c
highmem.c Some nice cleanups, and even a patch my wife did as a "live" demo for 2012-12-20 08:37:05 -08:00
huge_memory.c mm/huge_memory.c: use new hashtable implementation 2013-02-23 17:50:10 -08:00
hugetlb.c mm/hugetlb.c: convert to pr_foo() 2013-02-23 17:50:09 -08:00
hugetlb_cgroup.c mm/hugetlb: create hugetlb cgroup file in hugetlb_init 2012-12-18 15:02:15 -08:00
hwpoison-inject.c
init-mm.c
internal.h mm: directly use __mlock_vma_pages_range() in find_extend_vma() 2013-02-23 17:50:11 -08:00
interval_tree.c
Kconfig memory-hotplug: implement register_page_bootmem_info_section of sparse-vmemmap 2013-02-23 17:50:12 -08:00
Kconfig.debug
kmemcheck.c
kmemleak-test.c
kmemleak.c mm/kmemleak.c: remove obsolete simple_strtoul 2012-12-18 15:02:15 -08:00
ksm.c mm/ksm.c: use new hashtable implementation 2013-02-23 17:50:10 -08:00
maccess.c
madvise.c mm: make madvise(MADV_WILLNEED) support swap file prefetch 2013-02-23 17:50:10 -08:00
Makefile mm: introduce a common interface for balloon pages mobility 2012-12-11 17:22:26 -08:00
memblock.c memblock: Add memblock_mem_size() 2013-01-29 19:32:57 -08:00
memcontrol.c mm/memcontrol.c: convert printk(KERN_FOO) to pr_foo() 2013-02-23 17:50:09 -08:00
memory-failure.c Automatic NUMA Balancing V11 2012-12-16 15:18:08 -08:00
memory.c mm: directly use __mlock_vma_pages_range() in find_extend_vma() 2013-02-23 17:50:11 -08:00
memory_hotplug.c memory-hotplug: implement register_page_bootmem_info_section of sparse-vmemmap 2013-02-23 17:50:12 -08:00
mempolicy.c mm: mempolicy: Convert shared_policy mutex to spinlock 2013-01-02 17:32:13 -08:00
mempool.c
migrate.c mm/hugetlb: set PTE as huge in hugetlb_change_protection and remove_migration_pte 2013-02-05 20:38:47 +11:00
mincore.c
mlock.c mm: introduce VM_POPULATE flag to better deal with racy userspace programs 2013-02-23 17:50:11 -08:00
mm_init.c
mmap.c mm: make do_mmap_pgoff return populate as a size in bytes, not as a bool 2013-02-23 17:50:11 -08:00
mmu_context.c
mmu_notifier.c
mmzone.c
mprotect.c mm/mprotect.c: coding-style cleanups 2012-12-18 15:02:15 -08:00
mremap.c mm: use mm_populate() for mremap() of VM_LOCKED vmas 2013-02-23 17:50:11 -08:00
msync.c
nobootmem.c mm: Add alloc_bootmem_low_pages_nopanic() 2013-01-29 19:32:59 -08:00
nommu.c mm: make do_mmap_pgoff return populate as a size in bytes, not as a bool 2013-02-23 17:50:11 -08:00
oom_kill.c memcg, oom: provide more precise dump info while memcg oom happening 2013-02-23 17:50:08 -08:00
page-writeback.c block: optionally snapshot page contents to provide stable pages during write 2013-02-21 17:22:20 -08:00
page_alloc.c mm/page_alloc.c:__setup_per_zone_wmarks: make min_pages unsigned long 2013-02-23 17:50:10 -08:00
page_cgroup.c memcontrol: use N_MEMORY instead N_HIGH_MEMORY 2012-12-12 17:38:32 -08:00
page_io.c
page_isolation.c mm: fix zone_watermark_ok_safe() accounting of isolated pages 2013-01-04 16:11:46 -08:00
pagewalk.c thp: change split_huge_page_pmd() interface 2012-12-12 17:38:31 -08:00
percpu-km.c
percpu-vm.c
percpu.c
pgtable-generic.c
process_vm_access.c
quicklist.c
readahead.c
rmap.c s390/mm: implement software dirty bits 2013-02-14 15:55:23 +01:00
shmem.c mempolicy: remove arg from mpol_parse_str, mpol_to_str 2013-01-02 09:27:10 -08:00
slab.c memcg: add comments clarifying aspects of cache attribute propagation 2012-12-18 15:02:15 -08:00
slab.h slab: propagate tunable values 2012-12-18 15:02:14 -08:00
slab_common.c slab: propagate tunable values 2012-12-18 15:02:14 -08:00
slob.c sl[au]b: always get the cache from its page in kmem_cache_free() 2012-12-18 15:02:14 -08:00
slub.c slub: drop mutex before deleting sysfs entry 2012-12-18 15:02:15 -08:00
sparse-vmemmap.c
sparse.c memory-hotplug, mm/sparse.c: clear the memory to store struct page 2012-12-11 17:22:23 -08:00
swap.c
swap_state.c
swapfile.c mm, oom: fix race when specifying a thread as the oom origin 2012-12-11 17:22:27 -08:00
truncate.c mm: drop vmtruncate 2012-12-20 18:46:29 -05:00
util.c mm: make do_mmap_pgoff return populate as a size in bytes, not as a bool 2013-02-23 17:50:11 -08:00
vmalloc.c mm: use IS_ENABLED(CONFIG_NUMA) instead of NUMA_BUILD 2012-12-11 17:22:22 -08:00
vmscan.c mm: avoid calling pgdat_balanced() needlessly 2013-02-23 17:50:10 -08:00
vmstat.c Automatic NUMA Balancing V11 2012-12-16 15:18:08 -08:00