Repository files (latest commit first)

Filename	Latest commit message	Latest commit date
Mel Gorman 56de7263fc mm: compaction: direct compact when a high-order allocation fails ... Ordinarily when a high-order allocation fails, direct reclaim is entered to free pages to satisfy the allocation. With this patch, it is determined if an allocation failed due to external fragmentation instead of low memory and if so, the calling process will compact until a suitable page is freed. Compaction by moving pages in memory is considerably cheaper than paging out to disk and works where there are locked pages or no swap. If compaction fails to free a page of a suitable size, then reclaim will still occur. Direct compaction returns as soon as possible. As each block is compacted, it is checked if a suitable page has been freed and if so, it returns. [akpm@linux-foundation.org: Fix build errors] [aarcange@redhat.com: fix count_vm_event preempt in memory compaction direct reclaim] Signed-off-by: Mel Gorman <mel@csn.ul.ie> Acked-by: Rik van Riel <riel@redhat.com> Reviewed-by: Minchan Kim <minchan.kim@gmail.com> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: Christoph Lameter <cl@linux-foundation.org> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Signed-off-by: Andrea Arcangeli <aarcange@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2010-05-25 08:06:59 -07:00
..
backing-dev.c	writeback: fixups for !dirty_writeback_centisecs	2010-05-21 20:00:35 +02:00
bootmem.c	Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-tip	2010-04-07 11:02:23 -07:00
bounce.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
compaction.c	mm: compaction: direct compact when a high-order allocation fails	2010-05-25 08:06:59 -07:00
debug-pagealloc.c
dmapool.c
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.c	cpuset,mm: fix no node to alloc memory when changing cpuset's mems	2010-05-25 08:06:57 -07:00
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
fremap.c	mm: clean up mm_counter	2010-03-06 11:26:23 -08:00
highmem.c	grammar fix in comment	2010-02-05 12:22:40 +01:00
hugetlb.c	cpuset,mm: fix no node to alloc memory when changing cpuset's mems	2010-05-25 08:06:57 -07:00
hwpoison-inject.c
init-mm.c
internal.h
Kconfig	mm: allow CONFIG_MIGRATION to be set without CONFIG_NUMA or memory hot-remove	2010-05-25 08:06:59 -07:00
Kconfig.debug
kmemcheck.c	kmemcheck: Fix build errors due to missing slab.h	2010-03-30 22:02:32 +09:00
kmemleak-test.c
kmemleak.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
ksm.c	mm: migration: share the anon_vma ref counts between KSM and page migration	2010-05-25 08:06:58 -07:00
maccess.c	maccess,probe_kernel: Allow arch specific override probe_kernel_(read|write)	2010-01-07 11:58:36 -06:00
madvise.c
Makefile	mm: compaction: memory compaction core	2010-05-25 08:06:59 -07:00
memcontrol.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2010-05-20 09:20:59 -07:00
memory-failure.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
memory.c	mm: avoid null-pointer deref in sync_mm_rss()	2010-04-07 08:38:02 -07:00
memory_hotplug.c	mm: introduce dump_page() and print symbolic flag names	2010-03-12 15:52:28 -08:00
mempolicy.c	cpuset,mm: fix no node to alloc memory when changing cpuset's mems	2010-05-25 08:06:57 -07:00
mempool.c
migrate.c	mm: compaction: memory compaction core	2010-05-25 08:06:59 -07:00
mincore.c	mincore: do nested page table walks	2010-05-25 08:06:58 -07:00
mlock.c	x86, perf, bts, mm: Delete the never used BTS-ptrace code	2010-03-26 11:33:55 +01:00
mm_init.c
mmap.c	mmap: check ->vm_ops before dereferencing	2010-04-27 08:26:51 -07:00
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
mprotect.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
mremap.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
msync.c	sanitize vfs_fsync calling conventions	2010-05-21 18:31:21 -04:00
nommu.c	NOMMU: Fix __get_user_pages() to pin last page on offset buffers	2010-03-25 14:13:27 -07:00
oom_kill.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
page-writeback.c	writeback: fix mixed up arguments to bdi_start_writeback()	2010-05-21 20:01:54 +02:00
page_alloc.c	mm: compaction: direct compact when a high-order allocation fails	2010-05-25 08:06:59 -07:00
page_cgroup.c	memcg: avoid use cmpxchg in swap cgroup maintainance	2010-03-17 18:43:47 -07:00
page_io.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
page_isolation.c
pagewalk.c	pagemap: fix pfn calculation for hugepage	2010-04-07 08:38:04 -07:00
percpu-km.c	percpu: implement kernel memory based chunk allocation	2010-05-01 08:30:50 +02:00
percpu-vm.c	percpu: move vmalloc based chunk management into percpu-vm.c	2010-05-01 08:30:50 +02:00
percpu.c	percpu: implement kernel memory based chunk allocation	2010-05-01 08:30:50 +02:00
percpu_up.c	percpu: don't implicitly include slab.h from percpu.h	2010-03-30 22:02:32 +09:00
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: fix NULL filp dereference	2010-04-07 08:38:03 -07:00
rmap.c	mm: migration: avoid race between shift_arg_pages() and rmap_walk() during migration by not migrating temporary stacks	2010-05-25 08:06:59 -07:00
shmem.c	shmem: remove redundant code	2010-05-25 08:06:57 -07:00
slab.c	cpuset,mm: fix no node to alloc memory when changing cpuset's mems	2010-05-25 08:06:57 -07:00
slob.c	mm: Move ARCH_SLAB_MINALIGN and ARCH_KMALLOC_MINALIGN to <linux/slob_def.h>	2010-05-19 22:03:13 +03:00
slub.c	cpuset,mm: fix no node to alloc memory when changing cpuset's mems	2010-05-25 08:06:57 -07:00
sparse-vmemmap.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
sparse.c	sparsemem: on no vmemmap path put mem_map on node high too	2010-05-25 08:06:56 -07:00
swap.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_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
swapfile.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6	2010-05-21 15:26:46 -07:00
thrash.c
truncate.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
util.c	slab: Generify kernel pointer validation	2010-04-09 10:09:50 -07:00
vmalloc.c	mm: purge fragmented percpu vmap blocks	2010-02-02 12:50:47 -08:00
vmscan.c	mm: move definition for LRU isolation modes to a header	2010-05-25 08:06:59 -07:00
vmstat.c	mm: compaction: direct compact when a high-order allocation fails	2010-05-25 08:06:59 -07:00