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android_kernel_samsung_msm8976/mm
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Minchan Kim 2a0ff415c7 UPSTREAM: zsmalloc: record handle in page->private for huge object 
(cherry-pick from commit 7b60a68529b0d827d26ea3426c2addd071bff789)

We store handle on header of each allocated object so it increases the
size of each object by sizeof(unsigned long).

If zram stores 4096 bytes to zsmalloc(ie, bad compression), zsmalloc needs
4104B-class to add handle.

However, 4104B-class has 1-pages_per_zspage so wasted size by internal
fragment is 8192 - 4104, which is terrible.

So this patch records the handle in page->private on such huge object(ie,
pages_per_zspage == 1 && maxobj_per_zspage == 1) instead of header of each
object so we could use 4096B-class, not 4104B-class.

Bug: 25951511

Change-Id: I392eed4a0e0db5a940bc8a97ef56c26a7397b0f9
Signed-off-by: Minchan Kim <minchan@kernel.org>
Cc: Juneho Choi <juno.choi@lge.com>
Cc: Gunho Lee <gunho.lee@lge.com>
Cc: Luigi Semenzato <semenzato@google.com>
Cc: Dan Streetman <ddstreet@ieee.org>
Cc: Seth Jennings <sjennings@variantweb.net>
Cc: Nitin Gupta <ngupta@vflare.org>
Cc: Jerome Marchand <jmarchan@redhat.com>
Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Mel Gorman <mel@csn.ul.ie>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-05-18 14:35:52 +05:30
..
kasan kasan, module, vmalloc: rework shadow allocation for modules 2015-05-04 14:03:58 -07:00
backing-dev.c arch: Mass conversion of smp_mb__*() 2014-08-15 11:45:28 -07:00
balloon_compaction.c
bootmem.c mm: concentrate modification of totalram_pages into the mm core 2014-02-07 13:49:40 -08:00
bounce.c
cleancache.c
compaction.c mm: page_alloc: add kasan hooks on alloc and free paths 2015-05-04 14:03:54 -07:00
debug-pagealloc.c mm/debug-pagealloc.c: print page physical address for 2015-08-23 23:19:22 -07:00
dmapool.c
early_ioremap.c mm: create generic early_ioremap() support 2014-08-15 11:45:23 -07:00
fadvise.c
failslab.c
filemap.c Page cache miss tracing using ftrace on mm/filemap 2016-05-18 14:31:34 +05:30
filemap_xip.c
fremap.c
frontswap.c mm: frontswap: invalidate expired data on a dup-store failure 2014-12-16 09:09:41 -08:00
highmem.c
huge_memory.c mm: numa: Do not mark PTEs pte_numa when splitting huge pages 2014-10-09 12:18:42 -07:00
hugetlb.c mm/hugetlb: add migration entry check in __unmap_hugepage_range 2015-03-18 13:22:27 +01:00
hugetlb_cgroup.c
hwpoison-inject.c
init-mm.c
internal.h mm: Enhance per process reclaim to consider shared pages 2015-04-16 10:14:27 -07:00
interval_tree.c
Kconfig BACKPORT: mm/zsmalloc: add statistics support 2016-05-18 14:35:51 +05:30
Kconfig.debug defconfig: 8994: enable CONFIG_DEBUG_SLUB_PANIC_ON 2014-10-21 14:00:18 -07:00
kmemcheck.c
kmemleak-test.c
kmemleak.c mm: kmemleak: allow safe memory scanning during kmemleak disabling 2015-06-22 10:47:32 +05:30
ksm.c This is the 3.10.84 stable release 2015-09-30 13:25:40 +05:30
maccess.c
madvise.c mm: add a field to store names for private anonymous memory 2014-06-13 12:05:14 -07:00
Makefile BACKPORT: mm/zpool: implement common zpool api to zbud/zsmalloc 2016-05-18 14:35:03 +05:30
memblock.c mm/memblock: add memblock_get_current_limit 2014-04-08 09:51:10 -07:00
memcontrol.c This is the 3.10.67 stable release 2015-04-24 18:04:40 -07:00
memory-failure.c This is the 3.10.84 stable release 2015-09-30 13:25:40 +05:30
memory.c This is the 3.10.84 stable release 2015-09-30 13:25:40 +05:30
memory_hotplug.c This is the 3.10.84 stable release 2015-09-30 13:25:40 +05:30
mempolicy.c Merge upstream tag 'v3.10.49' into msm-3.10 2014-08-20 13:23:09 -07:00
mempool.c
memtest.c memtest: use phys_addr_t for physical addresses 2015-04-01 09:27:43 -07:00
migrate.c mm: Enhance per process reclaim to consider shared pages 2015-04-16 10:14:27 -07:00
mincore.c
mlock.c mm: reorder can_do_mlock to fix audit denial 2015-09-16 18:20:13 +05:30
mm_init.c
mmap.c This is the 3.10.73 stable release 2015-04-24 18:14:57 -07:00
mmu_context.c
mmu_notifier.c
mmzone.c
mprotect.c mm: add a field to store names for private anonymous memory 2014-06-13 12:05:14 -07:00
mremap.c mm, thp: close race between mremap() and split_huge_page() 2014-06-07 13:25:31 -07:00
msync.c
nobootmem.c mm/nobootmem.c: Drop __init annotation from free_bootmem_late 2014-04-21 15:28:38 -07:00
nommu.c This is the 3.10.73 stable release 2015-04-24 18:14:57 -07:00
oom_kill.c This is the 3.10.67 stable release 2015-04-24 18:04:40 -07:00
page-writeback.c This is the 3.10.84 stable release 2015-09-30 13:25:40 +05:30
page_alloc.c mm: fix compile time error with !CONFIG_CMA 2015-11-26 21:16:14 -08:00
page_cgroup.c cgroup/kmemleak: add kmemleak_free() for cgroup deallocations. 2014-11-14 08:47:59 -08:00
page_io.c
page_isolation.c mm/page_alloc: Call kernel_map_pages in unset_migrateype_isolate 2015-03-19 11:34:36 -07:00
pageowner.c debugging: keep track of page owners 2014-03-28 13:33:08 -07:00
pagewalk.c mm: pagewalk: call pte_hole() for VM_PFNMAP during walk_page_range 2015-02-11 14:48:16 +08:00
percpu-km.c
percpu-vm.c percpu: perform tlb flush after pcpu_map_pages() failure 2014-10-05 14:54:13 -07:00
percpu.c percpu: make pcpu_alloc_chunk() use pcpu_mem_free() instead of kfree() 2014-06-07 13:25:37 -07:00
pgtable-generic.c
process_reclaim.c mm: process_reclaim: use unbounded cpu workqueue 2015-06-11 12:23:28 +05:30
process_vm_access.c
quicklist.c
readahead.c
rmap.c mm: Enhance per process reclaim to consider shared pages 2015-04-16 10:14:27 -07:00
shmem.c This is the 3.10.67 stable release 2015-04-24 18:04:40 -07:00
showmem.c mm: showmem: make the notifiers atomic 2015-06-05 13:54:50 +05:30
slab.c mm: slub: add kernel address sanitizer support for slub allocator 2015-05-04 14:03:56 -07:00
slab.h
slab_common.c mm: slub: add kernel address sanitizer support for slub allocator 2015-05-04 14:03:56 -07:00
slob.c
slub.c mm: slub: add kernel address sanitizer support for slub allocator 2015-05-04 14:03:56 -07:00
sparse-vmemmap.c
sparse.c
swap.c mm: close PageTail race 2014-04-03 12:01:05 -07:00
swap_state.c Merge "lowmemorykiller: Don't count swap cache pages twice" 2015-04-09 06:38:02 -07:00
swapfile.c mm/swapfile.c: do not skip lowest_bit in scan_swap_map() scan loop 2015-09-12 04:57:54 -07:00
truncate.c mm: Remove false WARN_ON from pagecache_isize_extended() 2014-11-14 08:48:00 -08:00
util.c This is the 3.10.67 stable release 2015-04-24 18:04:40 -07:00
vmalloc.c bludgeon the flounder kernel until it builds on i386 for qemu testing 2015-09-16 18:20:19 +05:30
vmpressure.c mm: vmpressure: account allocstalls only on higher pressures 2015-08-25 18:34:09 -07:00
vmscan.c vmscan: fix increasing nr_isolated incurred by putback unevictable pages 2015-08-30 20:50:58 -07:00
vmstat.c Revert "Revert "mm: add cma pcp list"" 2015-06-25 13:10:46 -07:00
zbud.c
zpool.c BACKPORT: mm/zpool: add name argument to create zpool 2016-05-18 14:35:51 +05:30
zsmalloc.c UPSTREAM: zsmalloc: record handle in page->private for huge object 2016-05-18 14:35:52 +05:30
zswap.c mm, zswap: Fix CPU hotplug callback registration 2014-07-03 09:55:28 -07:00