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David Rientjes 35979ef339 mm, compaction: add per-zone migration pfn cache for async compaction 
Each zone has a cached migration scanner pfn for memory compaction so that
subsequent calls to memory compaction can start where the previous call
left off.

Currently, the compaction migration scanner only updates the per-zone
cached pfn when pageblocks were not skipped for async compaction.  This
creates a dependency on calling sync compaction to avoid having subsequent
calls to async compaction from scanning an enormous amount of non-MOVABLE
pageblocks each time it is called.  On large machines, this could be
potentially very expensive.

This patch adds a per-zone cached migration scanner pfn only for async
compaction.  It is updated everytime a pageblock has been scanned in its
entirety and when no pages from it were successfully isolated.  The cached
migration scanner pfn for sync compaction is updated only when called for
sync compaction.

Signed-off-by: David Rientjes <rientjes@google.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Reviewed-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Greg Thelen <gthelen@google.com>
Cc: Mel Gorman <mgorman@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 		2014-06-04 16:54:06 -07:00
..
Kconfig hugetlb: restrict hugepage_migration_support() to x86_64 2014-06-04 16:53:51 -07:00
Kconfig.debug
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Makefile mm: move get_user_pages()-related code to separate file 2014-06-04 16:54:04 -07:00
backing-dev.c arch: Mass conversion of smp_mb__*() 2014-04-18 14:20:48 +02:00
balloon_compaction.c
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bootmem.c
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cleancache.c
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compaction.c mm, compaction: add per-zone migration pfn cache for async compaction 2014-06-04 16:54:06 -07:00
debug-pagealloc.c
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dmapool.c mm/dmapool.c: remove redundant NULL check for dev in dma_pool_create() 2014-06-04 16:54:04 -07:00
early_ioremap.c mm: create generic early_ioremap() support 2014-04-07 16:36:15 -07:00
fadvise.c
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failslab.c
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filemap.c fs/mpage.c: factor page_endio() out of mpage_end_io() 2014-06-04 16:54:02 -07:00
filemap_xip.c
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fremap.c mm: softdirty: make freshly remapped file pages being softdirty unconditionally 2014-06-04 16:53:56 -07:00
frontswap.c
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gup.c mm: cleanup __get_user_pages() 2014-06-04 16:54:05 -07:00
highmem.c
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huge_memory.c mm/huge_memory.c: complete conversion to pr_foo() 2014-06-04 16:53:58 -07:00
hugetlb.c hugetlb: add support for gigantic page allocation at runtime 2014-06-04 16:53:59 -07:00
hugetlb_cgroup.c
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hwpoison-inject.c
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init-mm.c
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internal.h mm: move get_user_pages()-related code to separate file 2014-06-04 16:54:04 -07:00
interval_tree.c
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iov_iter.c take iov_iter stuff to mm/iov_iter.c 2014-04-01 23:19:30 -04:00
kmemcheck.c
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kmemleak-test.c
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kmemleak.c mem-hotplug: implement get/put_online_mems 2014-06-04 16:53:59 -07:00
ksm.c
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list_lru.c mm: keep page cache radix tree nodes in check 2014-04-03 16:21:01 -07:00
maccess.c
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madvise.c mm: madvise: fix MADV_WILLNEED on shmem swapouts 2014-05-23 09:37:29 -07:00
memblock.c mm/memblock.c: use PFN_DOWN 2014-06-04 16:54:02 -07:00
memcontrol.c memcg: memcg_kmem_create_cache: make memcg_name_buf statically allocated 2014-06-04 16:54:06 -07:00
memory-failure.c mm, migration: add destination page freeing callback 2014-06-04 16:54:06 -07:00
memory.c mm: move get_user_pages()-related code to separate file 2014-06-04 16:54:04 -07:00
memory_hotplug.c mm, migration: add destination page freeing callback 2014-06-04 16:54:06 -07:00
mempolicy.c mm, migration: add destination page freeing callback 2014-06-04 16:54:06 -07:00
mempool.c mm/mempool: warn about __GFP_ZERO usage 2014-06-04 16:53:58 -07:00
migrate.c mm, migration: add destination page freeing callback 2014-06-04 16:54:06 -07:00
mincore.c mm + fs: prepare for non-page entries in page cache radix trees 2014-04-03 16:21:00 -07:00
mlock.c mm: try_to_unmap_cluster() should lock_page() before mlocking 2014-04-07 16:35:57 -07:00
mm_init.c
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mmap.c mm/mmap.c: remove the first mapping check 2014-06-04 16:54:01 -07:00
mmu_context.c
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mmu_notifier.c
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mmzone.c
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mprotect.c mm: move mmu notifier call from change_protection to change_pmd_range 2014-04-07 16:35:50 -07:00
mremap.c mm, thp: close race between mremap() and split_huge_page() 2014-05-11 17:55:48 +09:00
msync.c
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nobootmem.c mm/nobootmem.c: mark function as static 2014-04-03 16:21:02 -07:00
nommu.c mm: fix 'ERROR: do not initialise globals to 0 or NULL' and coding style 2014-04-07 16:35:55 -07:00
oom_kill.c
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page-writeback.c mm: replace __get_cpu_var uses with this_cpu_ptr 2014-06-04 16:54:03 -07:00
page_alloc.c mm, migration: add destination page freeing callback 2014-06-04 16:54:06 -07:00
page_cgroup.c mm/page_cgroup.c: mark functions as static 2014-04-03 16:21:02 -07:00
page_io.c swap: use bdev_read_page() / bdev_write_page() 2014-06-04 16:54:02 -07:00
page_isolation.c
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pagewalk.c
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percpu-km.c
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percpu-vm.c
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percpu.c percpu: make pcpu_alloc_chunk() use pcpu_mem_free() instead of kfree() 2014-04-14 16:18:06 -04:00
pgtable-generic.c
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process_vm_access.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2014-04-12 14:49:50 -07:00
quicklist.c
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readahead.c mm/readahead.c: inline ra_submit 2014-04-07 16:35:58 -07:00
rmap.c mm/rmap.c: make page_referenced_one() and try_to_unmap_one() static 2014-06-04 16:54:05 -07:00
shmem.c mm: Initialize error in shmem_file_aio_read() 2014-04-13 14:10:26 -07:00
slab.c memcg, slab: merge memcg_{bind,release}_pages to memcg_{un}charge_slab 2014-06-04 16:54:01 -07:00
slab.h memcg, slab: merge memcg_{bind,release}_pages to memcg_{un}charge_slab 2014-06-04 16:54:01 -07:00
slab_common.c memcg: get rid of memcg_create_cache_name 2014-06-04 16:54:06 -07:00
slob.c slab: get_online_mems for kmem_cache_{create,destroy,shrink} 2014-06-04 16:53:59 -07:00
slub.c mm: replace __get_cpu_var uses with this_cpu_ptr 2014-06-04 16:54:03 -07:00
sparse-vmemmap.c
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sparse.c mm: use macros from compiler.h instead of __attribute__((...)) 2014-04-07 16:35:54 -07:00
swap.c mm: introdule compound_head_by_tail() 2014-06-04 16:54:03 -07:00
swap_state.c
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swapfile.c
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truncate.c mm: filemap: update find_get_pages_tag() to deal with shadow entries 2014-05-06 13:04:59 -07:00
util.c nick kvfree() from apparmor 2014-05-06 14:02:53 -04:00
vmacache.c mm,vmacache: optimize overflow system-wide flushing 2014-06-04 16:53:57 -07:00
vmalloc.c mm/vmalloc.c: replace seq_printf by seq_puts 2014-06-04 16:54:04 -07:00
vmpressure.c
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vmscan.c mm: shrinker: add nid to tracepoint output 2014-06-04 16:54:04 -07:00
vmstat.c mm: replace __get_cpu_var uses with this_cpu_ptr 2014-06-04 16:54:03 -07:00
workingset.c mm: keep page cache radix tree nodes in check 2014-04-03 16:21:01 -07:00
zbud.c
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zsmalloc.c mm: replace __get_cpu_var uses with this_cpu_ptr 2014-06-04 16:54:03 -07:00
zswap.c Merge branch 'akpm' (incoming from Andrew) 2014-04-07 16:38:06 -07:00