Chao Yu f203c3b33f zbud: avoid accessing last unused freelist ... For now, there are NCHUNKS of 64 freelists in zbud_pool, the last unbuddied[63] freelist linked with all zbud pages which have free chunks of 63. Calculating according to context of num_free_chunks(), our max chunk number of unbuddied zbud page is 62, so none of zbud pages will be added/removed in last freelist, but still we will try to find an unbuddied zbud page in the last unused freelist, it is unneeded. This patch redefines NCHUNKS to 63 as free chunk number in one zbud page, hence we can decrease size of zpool and avoid accessing the last unused freelist whenever failing to allocate zbud from freelist in zbud_alloc. Signed-off-by: Chao Yu <chao2.yu@samsung.com> Cc: Seth Jennings <sjennings@variantweb.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2014-10-09 22:26:03 -04:00
..
backing-dev.c	mm: clean up zone flags	2014-10-09 22:25:57 -04:00
balloon_compaction.c	mm/balloon_compaction: add vmstat counters and kpageflags bit	2014-10-09 22:26:01 -04:00
bootmem.c	mm/bootmem.c: use include/linux/ headers	2014-10-09 22:26:00 -04:00
cleancache.c
cma.c	mm: cma: adjust address limit to avoid hitting low/high memory boundary	2014-10-09 22:25:53 -04:00
compaction.c	mm/balloon_compaction: redesign ballooned pages management	2014-10-09 22:26:01 -04:00
debug-pagealloc.c
debug.c	mm/debug.c: use pr_emerg()	2014-10-09 22:25:59 -04:00
dmapool.c	mm/dmapool.c: fixed a brace coding style issue	2014-10-09 22:26:00 -04:00
early_ioremap.c
fadvise.c
failslab.c
filemap.c	mm/filemap.c: remove trailing whitespace	2014-10-09 22:26:00 -04:00
filemap_xip.c
fremap.c	mm: mark remap_file_pages() syscall as deprecated	2014-06-06 16:08:17 -07:00
frontswap.c
gup.c	mm: introduce a general RCU get_user_pages_fast()	2014-10-09 22:26:00 -04:00
highmem.c	mm/highmem: make kmap cache coloring aware	2014-08-06 18:01:22 -07:00
huge_memory.c	mm: use VM_BUG_ON_MM where possible	2014-10-09 22:25:58 -04:00
hugetlb.c	mm: convert a few VM_BUG_ON callers to VM_BUG_ON_VMA	2014-10-09 22:25:57 -04:00
hugetlb_cgroup.c	hugetlb_cgroup: use lockdep_assert_held rather than spin_is_locked	2014-08-29 16:28:16 -07:00
hwpoison-inject.c	mm/hwpoison-inject.c: remove unnecessary null test before debugfs_remove_recursive	2014-08-06 18:01:19 -07:00
init-mm.c
internal.h	mm, compaction: pass gfp mask to compact_control	2014-10-09 22:25:55 -04:00
interval_tree.c	mm: convert a few VM_BUG_ON callers to VM_BUG_ON_VMA	2014-10-09 22:25:57 -04:00
iov_iter.c	fuse: honour max_read and max_write in direct_io mode	2014-09-26 21:16:51 -04:00
Kconfig	mm/balloon_compaction: add vmstat counters and kpageflags bit	2014-10-09 22:26:01 -04:00
Kconfig.debug
kmemcheck.c	mm/slab_common: move kmem_cache definition to internal header	2014-10-09 22:25:50 -04:00
kmemleak-test.c	mm/kmemleak-test.c: use pr_fmt for logging	2014-06-06 16:08:18 -07:00
kmemleak.c	mm: introduce kmemleak_update_trace()	2014-06-06 16:08:17 -07:00
ksm.c	mm: ksm use pr_err instead of printk	2014-10-09 22:26:00 -04:00
list_lru.c
maccess.c
madvise.c	mm: update the description for madvise_remove	2014-08-06 18:01:18 -07:00
Makefile	mm/balloon_compaction: add vmstat counters and kpageflags bit	2014-10-09 22:26:01 -04:00
memblock.c	mem-hotplug: let memblock skip the hotpluggable memory regions in __next_mem_range()	2014-09-10 15:42:12 -07:00
memcontrol.c	memcg: zap memcg_can_account_kmem	2014-10-09 22:26:00 -04:00
memory-failure.c	hwpoison: fix race with changing page during offlining	2014-08-06 18:01:19 -07:00
memory.c	mm: softdirty: keep bit when zapping file pte	2014-09-26 08:10:35 -07:00
memory_hotplug.c	memory-hotplug: add sysfs valid_zones attribute	2014-10-09 22:25:52 -04:00
mempolicy.c	mm: mempolicy: skip inaccessible VMAs when setting MPOL_MF_LAZY	2014-10-09 22:26:02 -04:00
mempool.c	mm/mempool.c: update the kmemleak stack trace for mempool allocations	2014-06-06 16:08:17 -07:00
migrate.c	mm/balloon_compaction: redesign ballooned pages management	2014-10-09 22:26:01 -04:00
mincore.c
mlock.c	mm: use VM_BUG_ON_MM where possible	2014-10-09 22:25:58 -04:00
mm_init.c
mmap.c	mm: use VM_BUG_ON_MM where possible	2014-10-09 22:25:58 -04:00
mmu_context.c
mmu_notifier.c	kvm: Fix page ageing bugs	2014-09-24 14:07:58 +02:00
mmzone.c
mprotect.c
mremap.c	mm/mremap.c: use linux headers	2014-10-09 22:26:00 -04:00
msync.c	msync: fix incorrect fstart calculation	2014-07-03 09:21:53 -07:00
nobootmem.c	mem-hotplug: let memblock skip the hotpluggable memory regions in __next_mem_range()	2014-09-10 15:42:12 -07:00
nommu.c	arm64,ia64,ppc,s390,sh,tile,um,x86,mm: remove default gate area	2014-08-08 15:57:27 -07:00
oom_kill.c	mm: clean up zone flags	2014-10-09 22:25:57 -04:00
page-writeback.c	mm/page-writeback.c: use min3/max3 macros to avoid shadow warnings	2014-10-09 22:25:57 -04:00
page_alloc.c	mm: move debug code out of page_alloc.c	2014-10-09 22:25:58 -04:00
page_cgroup.c
page_io.c	fix __swap_writepage() compile failure on old gcc versions	2014-06-14 19:30:48 -05:00
page_isolation.c
pagewalk.c	mm: use VM_BUG_ON_MM where possible	2014-10-09 22:25:58 -04:00
percpu-km.c
percpu-vm.c	percpu: perform tlb flush after pcpu_map_pages() failure	2014-08-15 16:06:10 -04:00
percpu.c	percpu: free percpu allocation info for uniprocessor system	2014-08-16 08:59:02 -04:00
pgtable-generic.c	mm: actually clear pmd_numa before invalidating	2014-08-29 16:28:15 -07:00
process_vm_access.c
quicklist.c
readahead.c	mm/readahead.c: remove unused file_ra_state from count_history_pages	2014-08-06 18:01:15 -07:00
rmap.c	mm: convert a few VM_BUG_ON callers to VM_BUG_ON_VMA	2014-10-09 22:25:57 -04:00
shmem.c	include/linux/migrate.h: remove migrate_page #define	2014-10-09 22:25:56 -04:00
slab.c	mm/slab.c: use __seq_open_private() instead of seq_open()	2014-10-09 22:25:57 -04:00
slab.h	mm/slab: use percpu allocator for cpu cache	2014-10-09 22:25:51 -04:00
slab_common.c	memcg: move memcg_update_cache_size() to slab_common.c	2014-10-09 22:25:59 -04:00
slob.c	mm/sl[ao]b: always track caller in kmalloc_(node_)track_caller()	2014-10-09 22:25:50 -04:00
slub.c	mm/slab_common: commonize slab merge logic	2014-10-09 22:25:51 -04:00
sparse-vmemmap.c
sparse.c
swap.c	mm: memcontrol: do not kill uncharge batching in free_pages_and_swap_cache	2014-10-09 22:25:59 -04:00
swap_state.c	mm: memcontrol: do not kill uncharge batching in free_pages_and_swap_cache	2014-10-09 22:25:59 -04:00
swapfile.c	mm: memcontrol: rewrite uncharge API	2014-08-08 15:57:17 -07:00
truncate.c	mm: memcontrol: rewrite uncharge API	2014-08-08 15:57:17 -07:00
util.c	proc/maps: make vm_is_stack() logic namespace-friendly	2014-10-09 22:25:50 -04:00
vmacache.c
vmalloc.c	mm/vmalloc.c: use seq_open_private() instead of seq_open()	2014-10-09 22:25:56 -04:00
vmpressure.c
vmscan.c	mm: memcontrol: fix transparent huge page allocations under pressure	2014-10-09 22:25:59 -04:00
vmstat.c	vmstat: on-demand vmstat workers V8	2014-10-09 22:26:02 -04:00
workingset.c
zbud.c	zbud: avoid accessing last unused freelist	2014-10-09 22:26:03 -04:00
zpool.c	mm/zpool: use prefixed module loading	2014-08-29 16:28:16 -07:00
zsmalloc.c	zsmalloc: simplify init_zspage free obj linking	2014-10-09 22:26:03 -04:00
zswap.c	mm/zswap.c: add __init to zswap_entry_cache_destroy()	2014-08-08 15:57:18 -07:00