Hugh Dickins ef53d16cde ksm: allocate roots when needed ...

It is a pity to have MAX_NUMNODES+MAX_NUMNODES tree roots statically
allocated, particularly when very few users will ever actually tune
merge_across_nodes 0 to use more than 1+1 of those trees.  Not a big
deal (only 16kB wasted on each machine with CONFIG_MAXSMP), but a pity.

Start off with 1+1 statically allocated, then if merge_across_nodes is
ever tuned, allocate for nr_node_ids+nr_node_ids.  Do not attempt to
free up the extra if it's tuned back, that would be a waste of effort.

Signed-off-by: Hugh Dickins <hughd@google.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Petr Holasek <pholasek@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Izik Eidus <izik.eidus@ravellosystems.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2013-02-23 17:50:24 -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: add & use zone_end_pfn() and zone_spans_pfn()

2013-02-23 17:50:20 -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

mm/fadvise.c: drain all pagevecs if POSIX_FADV_DONTNEED fails to discard all pages

2013-02-23 17:50:23 -08:00

failslab.c

…

filemap_xip.c

…

filemap.c

mm: only enforce stable page writes if the backing device requires it

2013-02-21 17:22:19 -08:00

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: use NUMA_NO_NODE

2013-02-23 17:50:21 -08:00

hugetlb_cgroup.c

mm/hugetlb: create hugetlb cgroup file in hugetlb_init

2012-12-18 15:02:15 -08:00

hugetlb.c

mm: use long type for page counts in mm_populate() and get_user_pages()

2013-02-23 17:50:22 -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: add & use zone_end_pfn() and zone_spans_pfn()

2013-02-23 17:50:20 -08:00

ksm.c

ksm: allocate roots when needed

2013-02-23 17:50:24 -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

mm/memblock.c: use CONFIG_HAVE_MEMBLOCK_NODE_MAP to protect movablecore_map in memblock_overlaps_region().

2013-02-23 17:50:14 -08:00

memcontrol.c

memcg: stop warning on memcg_propagate_kmem

2013-02-23 17:50:22 -08:00

memory_hotplug.c

mm/memory_hotplug: use pgdat_end_pfn() instead of open coding the same.

2013-02-23 17:50:21 -08:00

memory-failure.c

HWPOISON: change order of error_states[]'s elements

2013-02-23 17:50:22 -08:00

memory.c

mm: cleanup "swapcache" in do_swap_page

2013-02-23 17:50:24 -08:00

mempolicy.c

mm: use NUMA_NO_NODE

2013-02-23 17:50:21 -08:00

mempool.c

…

migrate.c

mm: remove offlining arg to migrate_pages

2013-02-23 17:50:19 -08:00

mincore.c

swap: make each swap partition have one address_space

2013-02-23 17:50:17 -08:00

mlock.c

mm: use long type for page counts in mm_populate() and get_user_pages()

2013-02-23 17:50:22 -08:00

mm_init.c

mm: init: report on last-nid information stored in page->flags

2013-02-23 17:50:18 -08:00

mmap.c

mm/rmap: rename anon_vma_unlock() => anon_vma_unlock_write()

2013-02-23 17:50:17 -08:00

mmu_context.c

…

mmu_notifier.c

mm: export mmu notifier invalidates

2013-02-23 17:50:23 -08:00

mmzone.c

mm: rename page struct field helpers

2013-02-23 17:50:18 -08:00

mprotect.c

mm/mprotect.c: coding-style cleanups

2012-12-18 15:02:15 -08:00

mremap.c

mm/rmap: rename anon_vma_unlock() => anon_vma_unlock_write()

2013-02-23 17:50:17 -08:00

msync.c

…

nobootmem.c

mm: Add alloc_bootmem_low_pages_nopanic()

2013-01-29 19:32:59 -08:00

nommu.c

mm: accelerate mm_populate() treatment of THP pages

2013-02-23 17:50:23 -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_alloc.c

mm: accurately document nr_free_*_pages functions with code comments

2013-02-23 17:50:22 -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

page-writeback.c

page-writeback.c: subtract min_free_kbytes from dirtyable memory

2013-02-23 17:50:17 -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

mm/rmap: rename anon_vma_unlock() => anon_vma_unlock_write()

2013-02-23 17:50:17 -08:00

shmem.c

tmpfs: fix mempolicy object leaks

2013-02-23 17:50:23 -08:00

slab_common.c

slab: propagate tunable values

2012-12-18 15:02:14 -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

slob.c

mm: rename page struct field helpers

2013-02-23 17:50:18 -08:00

slub.c

mm: rename page struct field helpers

2013-02-23 17:50:18 -08:00

sparse-vmemmap.c

…

sparse.c

memory-failure: use num_poisoned_pages instead of mce_bad_pages

2013-02-23 17:50:15 -08:00

swap_state.c

swap: add per-partition lock for swapfile

2013-02-23 17:50:17 -08:00

swap.c

swap: make each swap partition have one address_space

2013-02-23 17:50:17 -08:00

swapfile.c

mm,ksm: swapoff might need to copy

2013-02-23 17:50:23 -08:00

truncate.c

mm: drop vmtruncate

2012-12-20 18:46:29 -05:00

util.c

swap: make each swap partition have one address_space

2013-02-23 17:50:17 -08:00

vmalloc.c

mm: use NUMA_NO_NODE

2013-02-23 17:50:21 -08:00

vmscan.c

vmscan: change type of vm_total_pages to unsigned long

2013-02-23 17:50:22 -08:00

vmstat.c

mm: add & use zone_end_pfn() and zone_spans_pfn()

2013-02-23 17:50:20 -08:00