Mel Gorman
ed0ae21dc5
page allocator: do not call get_pageblock_migratetype() more than necessary ...
get_pageblock_migratetype() is potentially called twice for every page
free. Once, when being freed to the pcp lists and once when being freed
back to buddy. When freeing from the pcp lists, it is known what the
pageblock type was at the time of free so use it rather than rechecking.
In low memory situations under memory pressure, this might skew
anti-fragmentation slightly but the interference is minimal and decisions
that are fragmenting memory are being made anyway.
Signed-off-by: Mel Gorman <mel@csn.ul.ie>
Reviewed-by: Christoph Lameter <cl@linux-foundation.org>
Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Nick Piggin <nickpiggin@yahoo.com.au>
Cc: Dave Hansen <dave@linux.vnet.ibm.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-06-16 19:47:34 -07:00
percpu: __percpu_depopulate_mask can take a const mask
2009-04-06 13:44:15 -07:00
block: change the request allocation/congestion logic to be sync/async based
2009-04-06 08:04:53 -07:00
bootmem: fix slab fallback on numa
2009-06-11 19:15:54 +03:00
Merge branch 'for-2.6.31' of git://git.kernel.dk/linux-2.6-block
2009-06-11 11:10:35 -07:00
generic debug pagealloc
2009-04-01 08:59:13 -07:00
dmapool: enable debugging for CONFIG_SLUB_DEBUG_ON too
2008-04-28 08:58:20 -07:00
readahead: move max_sane_readahead() calls into force_page_cache_readahead()
2009-06-16 19:47:28 -07:00
kmemtrace, mm: fix slab.h dependency problem in mm/failslab.c
2009-04-03 12:23:01 +02:00
page allocator: do not check NUMA node ID when the caller knows the node is valid
2009-06-16 19:47:32 -07:00
mm: do_xip_mapping_read: fix length calculation
2009-04-02 19:04:49 -07:00
Do not account for the address space used by hugetlbfs using VM_ACCOUNT
2009-02-10 10:48:42 -08:00
mm: introduce debug_kmap_atomic
2009-04-01 08:59:14 -07:00
page allocator: do not check NUMA node ID when the caller knows the node is valid
2009-06-16 19:47:32 -07:00
mm: consolidate init_mm definition
2009-06-16 19:47:28 -07:00
nommu: there is no mlock() for NOMMU, so don't provide the bits
2009-04-01 08:59:14 -07:00
security: use mmap_min_addr indepedently of security models
2009-06-04 12:07:48 +10:00
generic debug pagealloc: build fix
2009-04-02 19:04:48 -07:00
kmemleak: Simple testing module for kmemleak
2009-06-11 17:04:19 +01:00
kmemleak: Add the base support
2009-06-11 17:03:28 +01:00
[S390] maccess: add weak attribute to probe_kernel_write
2009-06-12 10:27:37 +02:00
readahead: move max_sane_readahead() calls into force_page_cache_readahead()
2009-06-16 19:47:28 -07:00
mm: consolidate init_mm definition
2009-06-16 19:47:28 -07:00
memcg: fix build warning and avoid checking for mem != null again and again
2009-05-29 08:40:03 -07:00
mm: clean up get_user_pages_fast() documentation
2009-06-16 19:47:30 -07:00
mm: remove GFP_HIGHUSER_PAGECACHE
2009-01-06 15:59:01 -08:00
page allocator: do not check NUMA node ID when the caller knows the node is valid
2009-06-16 19:47:32 -07:00
spelling fixes: mm/
2007-10-20 01:27:18 +02:00
page allocator: do not check NUMA node ID when the caller knows the node is valid
2009-06-16 19:47:32 -07:00
[CVE-2009-0029] System call wrappers part 14
2009-01-14 14:15:24 +01:00
x86, bts, mm: clean up buffer allocation
2009-04-24 10:18:52 +02:00
mm: mminit_loglevel cannot be __meminitdata anymore
2008-08-20 15:40:30 -07:00
Merge branch 'perfcounters-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2009-06-11 14:01:07 -07:00
mmu-notifiers: core
2008-07-28 16:30:21 -07:00
[ARM] Double check memmap is actually valid with a memmap has unexpected holes V2
2009-05-18 11:22:24 +01:00
perf_counter: Add mmap event hooks to mprotect()
2009-06-08 23:10:43 +02:00
[CVE-2009-0029] System call wrappers part 13
2009-01-14 14:15:23 +01:00
[CVE-2009-0029] System call wrappers part 13
2009-01-14 14:15:23 +01:00
nommu: Provide mmap_min_addr definition.
2009-06-10 09:24:09 +10:00
oom: fix possible oom_dump_tasks NULL pointer
2009-05-29 08:40:01 -07:00
mm/page-writeback.c: dirty limit type should be unsigned long
2009-06-16 19:47:31 -07:00
page allocator: do not call get_pageblock_migratetype() more than necessary
2009-06-16 19:47:34 -07:00
memcg: fix page_cgroup fatal error in FLATMEM
2009-06-12 11:00:54 +03:00
block: fix bad definition of BIO_RW_SYNC
2009-02-18 10:32:00 +01:00
memory hotplug: fix page_zone() calculation in test_pages_isolated()
2008-11-06 15:41:19 -08:00
pagemap: pass mm into pagewalkers
2008-06-12 18:05:41 -07:00
Revert "mm: add /proc controls for pdflush threads"
2009-05-15 11:32:24 +02:00
percpu: remove rbtree and use page->index instead
2009-04-08 18:31:31 +02:00
spelling fixes: mm/
2007-10-20 01:27:18 +02:00
cpumask: replace node_to_cpumask with cpumask_of_node.
2009-03-13 14:49:46 +10:30
readahead: introduce context readahead algorithm
2009-06-16 19:47:30 -07:00
hugh: update email address
2009-05-21 13:14:32 -07:00
integrity: move ima_counts_get
2009-05-22 09:45:33 +10:00
[PATCH] sanitize ->permission() prototype
2008-07-26 20:53:14 -04:00
page allocator: do not check NUMA node ID when the caller knows the node is valid
2009-06-16 19:47:32 -07:00
page allocator: do not check NUMA node ID when the caller knows the node is valid
2009-06-16 19:47:32 -07:00
slab,slub: don't enable interrupts during early boot
2009-06-12 18:53:33 +03:00
vmemmap: warn about page_structs with remote distance
2008-11-06 15:41:19 -08:00
mm: mminit_validate_memmodel_limits(): remove redundant test
2009-04-01 08:59:11 -07:00
mm: fix Committed_AS underflow on large NR_CPUS environment
2009-05-02 15:36:10 -07:00
memcg: fix deadlock between lock_page_cgroup and mapping tree_lock
2009-05-29 08:40:02 -07:00
PM/hibernate: fix "swap breaks after hibernation failures"
2009-02-21 14:17:17 -08:00
memcg: fix deadlock between lock_page_cgroup and mapping tree_lock
2009-05-29 08:40:02 -07:00
mm: clean up get_user_pages_fast() documentation
2009-06-16 19:47:30 -07:00
Merge branch 'for-linus' of git://linux-arm.org/linux-2.6
2009-06-11 14:15:57 -07:00
vmscan: low order lumpy reclaim also should use PAGEOUT_IO_SYNC
2009-06-16 19:47:31 -07:00
[ARM] Double check memmap is actually valid with a memmap has unexpected holes V2
2009-05-18 11:22:24 +01:00
ed0ae21dc5