Mel Gorman a6f9edd65b page-allocator: maintain rolling count of pages to free from the PCP ... When round-robin freeing pages from the PCP lists, empty lists may be encountered. In the event one of the lists has more pages than another, there may be numerous checks for list_empty() which is undesirable. This patch maintains a count of pages to free which is incremented when empty lists are encountered. The intention is that more pages will then be freed from fuller lists than the empty ones reducing the number of empty list checks in the free path. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Mel Gorman <mel@csn.ul.ie> Cc: Nick Piggin <npiggin@suse.de> Cc: Christoph Lameter <cl@linux-foundation.org> Reviewed-by: Minchan Kim <minchan.kim@gmail.com> Cc: Pekka Enberg <penberg@cs.helsinki.fi> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2009-09-22 07:17:39 -07:00
..
allocpercpu.c	percpu: use dynamic percpu allocator as the default percpu allocator	2009-06-24 15:13:35 +09:00
backing-dev.c	writeback: splice dirty inode entries to default bdi on bdi_destroy()	2009-09-16 15:18:52 +02:00
bootmem.c	kmemleak: Do not report alloc_bootmem blocks as leaks	2009-08-27 14:29:17 +01:00
bounce.c	block: remove some includings of blktrace_api.h	2009-06-16 11:19:36 +02:00
debug-pagealloc.c	generic debug pagealloc	2009-04-01 08:59:13 -07:00
dmapool.c	dmapools: protect page_list walk in show_pools()	2009-06-30 18:56:00 -07:00
fadvise.c	readahead: move max_sane_readahead() calls into force_page_cache_readahead()	2009-06-16 19:47:28 -07:00
failslab.c	kmemtrace, mm: fix slab.h dependency problem in mm/failslab.c	2009-04-03 12:23:01 +02:00
filemap_xip.c	mm: do_xip_mapping_read: fix length calculation	2009-04-02 19:04:49 -07:00
filemap.c	mm: oom analysis: add shmem vmstat	2009-09-22 07:17:27 -07:00
fremap.c	Do not account for the address space used by hugetlbfs using VM_ACCOUNT	2009-02-10 10:48:42 -08:00
highmem.c	block: remove some includings of blktrace_api.h	2009-06-16 11:19:36 +02:00
hugetlb.c	hugetlb: restore interleaving of bootmem huge pages	2009-09-22 07:17:26 -07:00
init-mm.c	mm: consolidate init_mm definition	2009-06-16 19:47:28 -07:00
internal.h	vmscan: do not unconditionally treat zones that fail zone_reclaim() as full	2009-06-16 19:47:45 -07:00
Kconfig	ksm: add some documentation	2009-09-22 07:17:33 -07:00
Kconfig.debug	kmemcheck: enable in the x86 Kconfig	2009-06-15 15:49:15 +02:00
kmemcheck.c	kmemcheck: add hooks for the page allocator	2009-06-15 15:48:33 +02:00
kmemleak-test.c	percpu: clean up percpu variable definitions	2009-06-24 15:13:48 +09:00
kmemleak.c	kmemleak: Improve the "Early log buffer exceeded" error message	2009-09-11 10:42:09 +01:00
ksm.c	ksm: unmerge is an origin of OOMs	2009-09-22 07:17:33 -07:00
maccess.c	[S390] maccess: add weak attribute to probe_kernel_write	2009-06-12 10:27:37 +02:00
madvise.c	ksm: the mm interface to ksm	2009-09-22 07:17:31 -07:00
Makefile	ksm: the mm interface to ksm	2009-09-22 07:17:31 -07:00
memcontrol.c	mm: drop unneeded double negations	2009-09-22 07:17:35 -07:00
memory_hotplug.c	memory hotplug: fix updating of num_physpages for hot plugged memory	2009-09-22 07:17:38 -07:00
memory.c	mm: drop unneeded double negations	2009-09-22 07:17:35 -07:00
mempolicy.c	mm: make set_mempolicy(MPOL_INTERLEAV) N_HIGH_MEMORY aware	2009-08-07 10:39:55 -07:00
mempool.c	mm: remove broken 'kzalloc' mempool	2009-09-22 07:17:35 -07:00
migrate.c	mm: return boolean from page_has_private()	2009-09-22 07:17:38 -07:00
mincore.c	[CVE-2009-0029] System call wrappers part 14	2009-01-14 14:15:24 +01:00
mlock.c	mm: remove CONFIG_UNEVICTABLE_LRU config option	2009-06-16 19:47:42 -07:00
mm_init.c	mm: mminit_loglevel cannot be __meminitdata anymore	2008-08-20 15:40:30 -07:00
mmap.c	ksm: clean up obsolete references	2009-09-22 07:17:33 -07:00
mmu_notifier.c	ksm: add mmu_notifier set_pte_at_notify()	2009-09-22 07:17:31 -07:00
mmzone.c	[ARM] Double check memmap is actually valid with a memmap has unexpected holes V2	2009-05-18 11:22:24 +01:00
mprotect.c	perf: Do the big rename: Performance Counters -> Performance Events	2009-09-21 14:28:04 +02:00
mremap.c	ksm: mremap use err from ksm_madvise	2009-09-22 07:17:33 -07:00
msync.c	[CVE-2009-0029] System call wrappers part 13	2009-01-14 14:15:23 +01:00
nommu.c	mm: includecheck fix for mm/nommu.c	2009-09-22 07:17:35 -07:00
oom_kill.c	oom: oom_kill doesn't kill vfork parent (or child)	2009-09-22 07:17:39 -07:00
page_alloc.c	page-allocator: maintain rolling count of pages to free from the PCP	2009-09-22 07:17:39 -07:00
page_cgroup.c	memory hotplug: alloc page from other node in memory online	2009-09-22 07:17:26 -07:00
page_io.c	mm: remove file argument from swap_readpage()	2009-06-16 19:47:44 -07:00
page_isolation.c	memory hotplug: fix page_zone() calculation in test_pages_isolated()	2008-11-06 15:41:19 -08:00
page-writeback.c	mm: count only reclaimable lru pages	2009-09-22 07:17:30 -07:00
pagewalk.c	pagemap: pass mm into pagewalkers	2008-06-12 18:05:41 -07:00
percpu.c	Merge branch 'for-next' into for-linus	2009-09-15 09:57:19 +09:00
prio_tree.c	spelling fixes: mm/	2007-10-20 01:27:18 +02:00
quicklist.c	percpu: cleanup percpu array definitions	2009-06-24 15:13:45 +09:00
readahead.c	readahead: introduce context readahead algorithm	2009-06-16 19:47:30 -07:00
rmap.c	ksm: no debug in page_dup_rmap()	2009-09-22 07:17:31 -07:00
shmem_acl.c	shmfs: use 'check_acl' instead of 'permission'	2009-09-08 11:08:46 -07:00
shmem.c	mm: includecheck fix for mm/shmem.c	2009-09-22 07:17:35 -07:00
slab.c	mm: replace various uses of num_physpages by totalram_pages	2009-09-22 07:17:38 -07:00
slob.c	slab: remove duplicate kmem_cache_init_late() declarations	2009-08-06 11:36:25 +03:00
slub.c	mm: kmem_cache_create(): make it easier to catch NULL cache names	2009-09-22 07:17:33 -07:00
sparse-vmemmap.c	memory hotplug: alloc page from other node in memory online	2009-09-22 07:17:26 -07:00
sparse.c	memory hotplug: alloc page from other node in memory online	2009-09-22 07:17:26 -07:00
swap_state.c	mm: add_to_swap_cache() does not return -EEXIST	2009-09-22 07:17:35 -07:00
swap.c	mm: replace various uses of num_physpages by totalram_pages	2009-09-22 07:17:38 -07:00
swapfile.c	ksm: unmerge is an origin of OOMs	2009-09-22 07:17:33 -07:00
thrash.c	mm: pass mm to grab_swap_token	2009-06-23 12:50:05 -07:00
truncate.c	mm: remove __invalidate_mapping_pages variant	2009-06-16 19:47:43 -07:00
util.c	Merge branches 'slab/documentation', 'slab/fixes', 'slob/cleanups' and 'slub/fixes' into for-linus	2009-06-17 08:30:15 +03:00
vmalloc.c	mm: replace various uses of num_physpages by totalram_pages	2009-09-22 07:17:38 -07:00
vmscan.c	mm/vmscan: remove page_queue_congested() comment	2009-09-22 07:17:39 -07:00
vmstat.c	mm: vmstat: add isolate pages	2009-09-22 07:17:29 -07:00