Mel Gorman 65bb371984 mm: page_alloc: do not update zlc unless the zlc is active ... The zlc is used on NUMA machines to quickly skip over zones that are full. However it is always updated, even for the first zone scanned when the zlc might not even be active. As it's a write to a bitmap that potentially bounces cache line it's deceptively expensive and most machines will not care. Only update the zlc if it was active. Signed-off-by: Mel Gorman <mgorman@suse.de> Acked-by: Johannes Weiner <hannes@cmpxchg.org> Reviewed-by: Rik van Riel <riel@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2014-06-04 16:54:08 -07:00
..
backing-dev.c	arch: Mass conversion of smp_mb__*()	2014-04-18 14:20:48 +02:00
balloon_compaction.c	mm: print more details for bad_page()	2014-01-23 16:36:50 -08:00
bootmem.c	mm/bootmem.c: remove unused local `map'	2013-11-13 12:09:09 +09:00
cleancache.c	mm: dump page when hitting a VM_BUG_ON using VM_BUG_ON_PAGE	2014-01-23 16:36:50 -08:00
compaction.c	mm/compaction: avoid rescanning pageblocks in isolate_freepages	2014-06-04 16:54:07 -07:00
debug-pagealloc.c
dmapool.c	mm/dmapool.c: reuse devres_release() to free resources	2014-06-04 16:54:08 -07:00
early_ioremap.c	mm: create generic early_ioremap() support	2014-04-07 16:36:15 -07:00
fadvise.c
failslab.c
filemap_xip.c	seqcount: Add lockdep functionality to seqcount/seqlock structures	2013-11-06 12:40:26 +01:00
filemap.c	fs/mpage.c: factor page_endio() out of mpage_end_io()	2014-06-04 16:54:02 -07:00
fremap.c	mm: softdirty: make freshly remapped file pages being softdirty unconditionally	2014-06-04 16:53:56 -07:00
frontswap.c	swap: change swap_list_head to plist, add swap_avail_head	2014-06-04 16:54:07 -07:00
gup.c	mm: cleanup __get_user_pages()	2014-06-04 16:54:05 -07:00
highmem.c
huge_memory.c	mm/huge_memory.c: complete conversion to pr_foo()	2014-06-04 16:53:58 -07:00
hugetlb_cgroup.c	cgroup: drop const from @buffer of cftype->write_string()	2014-03-19 10:23:54 -04:00
hugetlb.c	hugetlb: add support for gigantic page allocation at runtime	2014-06-04 16:53:59 -07:00
hwpoison-inject.c	mm/hwpoison: add '#' to hwpoison_inject	2014-01-21 16:19:48 -08:00
init-mm.c
internal.h	mm: fold mlocked_vma_newpage() into its only call site	2014-06-04 16:54:07 -07:00
interval_tree.c
iov_iter.c	take iov_iter stuff to mm/iov_iter.c	2014-04-01 23:19:30 -04:00
Kconfig	hugetlb: restrict hugepage_migration_support() to x86_64	2014-06-04 16:53:51 -07:00
Kconfig.debug
kmemcheck.c
kmemleak-test.c
kmemleak.c	mem-hotplug: implement get/put_online_mems	2014-06-04 16:53:59 -07:00
ksm.c	mm: close PageTail race	2014-03-04 07:55:47 -08:00
list_lru.c	mm: keep page cache radix tree nodes in check	2014-04-03 16:21:01 -07:00
maccess.c
madvise.c	mm: madvise: fix MADV_WILLNEED on shmem swapouts	2014-05-23 09:37:29 -07:00
Makefile	mm: move get_user_pages()-related code to separate file	2014-06-04 16:54:04 -07:00
memblock.c	mm/memblock.c: use PFN_DOWN	2014-06-04 16:54:02 -07:00
memcontrol.c	memcg: cleanup kmem cache creation/destruction functions naming	2014-06-04 16:54:08 -07:00
memory_hotplug.c	mm, migration: add destination page freeing callback	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
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	mm: bring back /sys/kernel/mm	2014-01-27 21:02:39 -08:00
mmap.c	mm/mmap.c: remove the first mapping check	2014-06-04 16:54:01 -07:00
mmu_context.c	sched/mm: call finish_arch_post_lock_switch in idle_task_exit and use_mm	2014-02-21 08:50:17 +01:00
mmu_notifier.c	mm: audit/fix non-modular users of module_init in core code	2014-01-23 16:36:52 -08:00
mmzone.c	mm: numa: Change page last {nid,pid} into {cpu,pid}	2013-10-09 14:47:45 +02:00
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
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	mm, oom: base root bonus on current usage	2014-01-30 16:56:56 -08:00
page_alloc.c	mm: page_alloc: do not update zlc unless the zlc is active	2014-06-04 16:54:08 -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	mm: memory-hotplug: enable memory hotplug to handle hugepage	2013-09-11 15:57:48 -07:00
page-writeback.c	mm: replace __get_cpu_var uses with this_cpu_ptr	2014-06-04 16:54:03 -07:00
pagewalk.c	mm/pagewalk.c: fix walk_page_range() access of wrong PTEs	2013-10-30 14:27:03 -07:00
percpu-km.c
percpu-vm.c
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	mm: fix TLB flush race between migration, and change_protection_range	2013-12-18 19:04:51 -08:00
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
readahead.c	mm/readahead.c: inline ra_submit	2014-04-07 16:35:58 -07:00
rmap.c	mm: fold mlocked_vma_newpage() into its only call site	2014-06-04 16:54:07 -07:00
shmem.c	mm: Initialize error in shmem_file_aio_read()	2014-04-13 14:10:26 -07:00
slab_common.c	slab: delete cache from list after __kmem_cache_shutdown succeeds	2014-06-04 16:54:08 -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
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	mm/sparse: use memblock apis for early memory allocations	2014-01-21 16:19:47 -08:00
sparse.c	mm: use macros from compiler.h instead of __attribute__((...))	2014-04-07 16:35:54 -07:00
swap_state.c	swap: add a simple detector for inappropriate swapin readahead	2014-02-06 13:48:51 -08:00
swap.c	mm: introdule compound_head_by_tail()	2014-06-04 16:54:03 -07:00
swapfile.c	swap: change swap_list_head to plist, add swap_avail_head	2014-06-04 16:54:07 -07:00
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	arm, pm, vmpressure: add missing slab.h includes	2014-02-03 13:24:01 -05:00
vmscan.c	mm: shrinker: add nid to tracepoint output	2014-06-04 16:54:04 -07:00
vmstat.c	mm: use the light version __mod_zone_page_state in mlocked_vma_newpage()	2014-06-04 16:54:07 -07:00
workingset.c	mm: keep page cache radix tree nodes in check	2014-04-03 16:21:01 -07:00
zbud.c	mm/zbud: fix some trivial typos in comments	2013-09-11 15:57:35 -07:00
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