Mel Gorman 9927af740b mm: compaction: perform a faster migration scan when migrating asynchronously ... try_to_compact_pages() is initially called to only migrate pages asychronously and kswapd always compacts asynchronously. Both are being optimistic so it is important to complete the work as quickly as possible to minimise stalls. This patch alters the scanner when asynchronous to only consider MIGRATE_MOVABLE pageblocks as migration candidates. This reduces stalls when allocating huge pages while not impairing allocation success rates as a full scan will be performed if necessary after direct reclaim. Signed-off-by: Mel Gorman <mel@csn.ul.ie> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: Rik van Riel <riel@redhat.com> Acked-by: Johannes Weiner <hannes@cmpxchg.org> Cc: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2011-01-13 17:32:34 -08:00
..
backing-dev.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	2010-10-26 17:58:44 -07:00
bootmem.c	x86, memblock: Replace e820_/_early string with memblock_	2010-08-27 11:13:47 -07:00
bounce.c	bounce: call flush_dcache_page() after bounce_copy_vec()	2010-09-09 18:57:25 -07:00
compaction.c	mm: compaction: perform a faster migration scan when migrating asynchronously	2011-01-13 17:32:34 -08:00
debug-pagealloc.c	generic debug pagealloc	2009-04-01 08:59:13 -07:00
dmapool.c	mm: add a might_sleep_if() to dma_pool_alloc()	2010-10-26 16:52:08 -07:00
fadvise.c	readahead: introduce FMODE_RANDOM for POSIX_FADV_RANDOM	2010-03-06 11:26:25 -08:00
failslab.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
filemap_xip.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
filemap.c	mm: find_get_pages_contig fixlet	2011-01-13 17:32:32 -08:00
fremap.c	Avoid pgoff overflow in remap_file_pages	2010-09-25 09:34:58 -07:00
highmem.c	mm,x86: fix kmap_atomic_push vs ioremap_32.c	2010-10-27 18:03:05 -07:00
hugetlb.c	mm/hugetlb.c: avoid double unlock_page() in hugetlb_fault()	2010-12-02 14:51:14 -08:00
hwpoison-inject.c	HWPOISON, hugetlb: support hwpoison injection for hugepage	2010-08-11 09:23:11 +02:00
init-mm.c	mm: provide init_mm mm_context initializer	2010-08-09 20:44:54 -07:00
internal.h	mm: fix is_mem_section_removable() page_order BUG_ON check	2010-10-26 16:52:11 -07:00
Kconfig	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu	2010-10-22 17:31:36 -07:00
Kconfig.debug	trivial: improve help text for mm debug config options	2009-09-21 15:14:57 +02:00
kmemcheck.c	kmemcheck: Fix build errors due to missing slab.h	2010-03-30 22:02:32 +09:00
kmemleak-test.c	percpu: clean up percpu variable definitions	2009-06-24 15:13:48 +09:00
kmemleak.c	kmemleak: Fix typo in the comment	2010-08-08 21:57:23 +01:00
ksm.c	ksm: annotate ksm_thread_mutex is no deadlock source	2010-12-02 14:51:15 -08:00
maccess.c	MN10300: Save frame pointer in thread_info struct rather than global var	2010-10-27 17:29:01 +01:00
madvise.c	HWPOISON: Add a madvise() injector for soft page offlining	2009-12-16 12:20:00 +01:00
Makefile	percpu: use percpu allocator on UP too	2010-10-02 10:26:05 +03:00
memblock.c	memblock: Annotate memblock functions with __init_memblock	2010-10-11 16:00:52 -07:00
memcontrol.c	memcg: fix wrong VM_BUG_ON() in try_charge()'s mm->owner check	2010-12-30 10:07:06 -08:00
memory_hotplug.c	mm: migration: cleanup migrate_pages API by matching types for offlining and sync	2011-01-13 17:32:34 -08:00
memory-failure.c	mm: migration: allow migration to operate asynchronously and avoid synchronous compaction in the faster path	2011-01-13 17:32:34 -08:00
memory.c	use clear_page()/copy_page() in favor of memset()/memcpy() on whole pages	2010-10-26 16:52:13 -07:00
mempolicy.c	mm: migration: cleanup migrate_pages API by matching types for offlining and sync	2011-01-13 17:32:34 -08:00
mempool.c	mm: remove broken 'kzalloc' mempool	2009-09-22 07:17:35 -07:00
migrate.c	mm: migration: cleanup migrate_pages API by matching types for offlining and sync	2011-01-13 17:32:34 -08:00
mincore.c	mincore: do nested page table walks	2010-05-25 08:06:58 -07:00
mlock.c	mm: Move vma_stack_continue into mm.h	2010-09-09 09:05:06 -07:00
mm_init.c	mm: mminit_loglevel cannot be __meminitdata anymore	2008-08-20 15:40:30 -07:00
mmap.c	install_special_mapping skips security_file_mmap check.	2010-12-15 12:30:36 -08:00
mmu_context.c	exit: fix oops in sync_mm_rss	2010-03-24 16:31:21 -07:00
mmu_notifier.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
mmzone.c	mm: page allocator: adjust the per-cpu counter threshold when memory is low	2011-01-13 17:32:31 -08:00
mprotect.c	perf_events: Fix perf_counter_mmap() hook in mprotect()	2010-11-09 10:19:38 -08:00
mremap.c	mm: remove pte_*map_nested()	2010-10-26 16:52:08 -07:00
msync.c	sanitize vfs_fsync calling conventions	2010-05-21 18:31:21 -04:00
nommu.c	nommu: Provide stubbed alloc/free_vm_area() implementation.	2010-12-24 12:08:30 +09:00
oom_kill.c	oom: kill all threads sharing oom killed task's mm	2010-10-26 16:52:05 -07:00
page_alloc.c	mm: migration: allow migration to operate asynchronously and avoid synchronous compaction in the faster path	2011-01-13 17:32:34 -08:00
page_cgroup.c	kmemleak: Annotate false positive in init_section_page_cgroup()	2010-07-19 11:54:14 +01:00
page_io.c	block: unify flags for struct bio and struct request	2010-08-07 18:20:39 +02:00
page_isolation.c	mm: page_isolation: codeclean fix comment and rm unneeded val init	2010-10-26 16:52:11 -07:00
page-writeback.c	mm/page-writeback.c: fix __set_page_dirty_no_writeback() return value	2011-01-13 17:32:32 -08:00
pagewalk.c	mm: remove call to find_vma in pagewalk for non-hugetlbfs	2010-11-25 06:50:46 +09:00
percpu-km.c	percpu: clear memory allocated with the km allocator	2010-10-02 10:28:42 +03:00
percpu-vm.c	percpu: move vmalloc based chunk management into percpu-vm.c	2010-05-01 08:30:50 +02:00
percpu.c	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2011-01-13 10:05:56 -08:00
prio_tree.c
quicklist.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
readahead.c	readahead.c: fix comment	2010-05-25 08:07:00 -07:00
rmap.c	mm/rmap.c: fix comment	2010-12-27 15:14:06 +01:00
shmem.c	fs: icache RCU free inodes	2011-01-07 17:50:26 +11:00
slab.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/slab-2.6	2011-01-10 08:38:01 -08:00
slob.c	kernel: kmem_ptr_validate considered harmful	2011-01-07 17:50:16 +11:00
slub.c	mm: convert sprintf_symbol to %pS	2011-01-13 17:32:33 -08:00
sparse-vmemmap.c	tree-wide: fix comment/printk typos	2010-11-01 15:38:34 -04:00
sparse.c	sparsemem: on no vmemmap path put mem_map on node high too	2010-05-25 08:06:56 -07:00
swap_state.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
swap.c	fuse: use release_pages()	2010-10-27 18:03:17 -07:00
swapfile.c	block: make blkdev_get/put() handle exclusive access	2010-11-13 11:55:17 +01:00
thrash.c	mm: pass mm to grab_swap_token	2009-06-23 12:50:05 -07:00
truncate.c	Call the filesystem back whenever a page is removed from the page cache	2010-12-02 09:55:21 -05:00
util.c	kernel: kmem_ptr_validate considered harmful	2011-01-07 17:50:16 +11:00
vmalloc.c	mm: convert sprintf_symbol to %pS	2011-01-13 17:32:33 -08:00
vmscan.c	mm: migration: allow migration to operate asynchronously and avoid synchronous compaction in the faster path	2011-01-13 17:32:34 -08:00
vmstat.c	mm: vmstat: use a single setter function and callback for adjusting percpu thresholds	2011-01-13 17:32:31 -08:00