Michal Nazarewicz 47118af076 mm: mmzone: MIGRATE_CMA migration type added ... The MIGRATE_CMA migration type has two main characteristics: (i) only movable pages can be allocated from MIGRATE_CMA pageblocks and (ii) page allocator will never change migration type of MIGRATE_CMA pageblocks. This guarantees (to some degree) that page in a MIGRATE_CMA page block can always be migrated somewhere else (unless there's no memory left in the system). It is designed to be used for allocating big chunks (eg. 10MiB) of physically contiguous memory. Once driver requests contiguous memory, pages from MIGRATE_CMA pageblocks may be migrated away to create a contiguous block. To minimise number of migrations, MIGRATE_CMA migration type is the last type tried when page allocator falls back to other migration types when requested. Signed-off-by: Michal Nazarewicz <mina86@mina86.com> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Mel Gorman <mel@csn.ul.ie> Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Tested-by: Rob Clark <rob.clark@linaro.org> Tested-by: Ohad Ben-Cohen <ohad@wizery.com> Tested-by: Benjamin Gaignard <benjamin.gaignard@linaro.org> Tested-by: Robert Nelson <robertcnelson@gmail.com> Tested-by: Barry Song <Baohua.Song@csr.com>		2012-05-21 15:09:32 +02:00
..
backing-dev.c	backing-dev: fix wakeup timer races with bdi_unregister()	2012-02-01 16:52:49 +08:00
bootmem.c	bootmem/sparsemem: remove limit constraint in alloc_bootmem_section	2012-03-21 17:54:58 -07:00
bounce.c	mm: remove the second argument of k[un]map_atomic()	2012-03-20 21:48:27 +08:00
cleancache.c	mm: cleancache: Use __read_mostly as appropiate.	2012-01-23 16:08:09 -05:00
compaction.c	mm: mmzone: MIGRATE_CMA migration type added	2012-05-21 15:09:32 +02:00
debug-pagealloc.c	mm, x86: Remove debug_pagealloc_enabled	2011-12-06 09:24:07 +01:00
dmapool.c	mm: fix implicit stat.h usage in dmapool.c	2011-10-31 09:20:12 -04:00
fadvise.c	fadvise: only initiate writeback for specified range with FADV_DONTNEED	2012-01-10 16:30:43 -08:00
failslab.c	switch debugfs to umode_t	2012-01-03 22:54:56 -05:00
filemap_xip.c	mm/filemap_xip.c: fix race condition in xip_file_fault()	2012-02-03 16:16:41 -08:00
filemap.c	radix-tree: use iterators in find_get_pages* functions	2012-03-28 17:14:37 -07:00
fremap.c	mm: delete various needless include <linux/module.h>	2011-10-31 09:20:11 -04:00
highmem.c	Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux	2011-11-06 19:44:47 -08:00
huge_memory.c	thp: optimize away unnecessary page table locking	2012-03-21 17:54:57 -07:00
hugetlb.c	hugetlb: prevent BUG_ON in hugetlb_fault() -> hugetlb_cow()	2012-05-10 15:06:44 -07:00
hwpoison-inject.c	HWPOISON: Clean up memory_failure() vs. __memory_failure()	2012-01-03 12:06:32 -08:00
init-mm.c	atomic: use <linux/atomic.h>	2011-07-26 16:49:47 -07:00
internal.h	mm: compaction: export some of the functions	2012-05-21 15:09:30 +02:00
Kconfig	mm: mmzone: MIGRATE_CMA migration type added	2012-05-21 15:09:32 +02:00
Kconfig.debug	mm: more intensive memory corruption debugging	2012-01-10 16:30:42 -08:00
kmemcheck.c
kmemleak-test.c	kmemleak: remove memset by using kzalloc	2011-01-27 18:31:51 +00:00
kmemleak.c	kmemleak: Disable early logging when kmemleak is off by default	2012-01-20 16:57:05 +00:00
ksm.c	ksm: cleanup: introduce find_mergeable_vma()	2012-03-21 17:54:59 -07:00
maccess.c	mm: Map most files to use export.h instead of module.h	2011-10-31 09:20:12 -04:00
madvise.c	coredump: add VM_NODUMP, MADV_NODUMP, MADV_CLEAR_NODUMP	2012-03-23 16:58:42 -07:00
Makefile	mm: compaction: export some of the functions	2012-05-21 15:09:30 +02:00
memblock.c	memblock: memblock should be able to handle zero length operations	2012-04-20 11:18:46 -07:00
memcontrol.c	memcg,thp: fix res_counter:96 regression	2012-05-19 10:10:27 -07:00
memory_hotplug.c	mm: compaction: introduce sync-light migration for use by compaction	2012-01-12 20:13:09 -08:00
memory-failure.c	Merge branch 'x86-mce-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2012-03-22 09:42:04 -07:00
memory.c	coredump: remove VM_ALWAYSDUMP flag	2012-03-23 16:58:42 -07:00
mempolicy.c	mm: fix NULL ptr dereference in migrate_pages	2012-04-25 21:26:34 -07:00
mempool.c	mempool: fix first round failure behavior	2012-01-10 16:30:45 -08:00
migrate.c	mm: fix NULL ptr dereference in move_pages	2012-04-25 21:26:34 -07:00
mincore.c	mm: thp: fix pmd_bad() triggering in code paths holding mmap_sem read mode	2012-03-21 17:54:54 -07:00
mlock.c	vm: avoid using find_vma_prev() unnecessarily	2012-03-06 18:23:36 -08:00
mm_init.c	mm: Map most files to use export.h instead of module.h	2011-10-31 09:20:12 -04:00
mmap.c	kill mm argument of vm_munmap()	2012-04-21 01:58:20 -04:00
mmu_context.c	mm, counters: remove task argument to sync_mm_rss() and __sync_task_rss_stat()	2012-03-21 17:54:59 -07:00
mmu_notifier.c	mm: Map most files to use export.h instead of module.h	2011-10-31 09:20:12 -04:00
mmzone.c	mm: delete various needless include <linux/module.h>	2011-10-31 09:20:11 -04:00
mprotect.c	Merge branch 'akpm' (Andrew's patch-bomb)	2012-03-22 09:04:48 -07:00
mremap.c	mm: collapse security_vm_enough_memory() variants into a single function	2012-02-14 10:45:39 +11:00
msync.c	sanitize vfs_fsync calling conventions	2010-05-21 18:31:21 -04:00
nobootmem.c	mm: nobootmem: fix sign extend problem in __free_pages_memory()	2012-05-10 15:06:44 -07:00
nommu.c	kill mm argument of vm_munmap()	2012-04-21 01:58:20 -04:00
oom_kill.c	signal: oom_kill_task: use SEND_SIG_FORCED instead of force_sig()	2012-03-23 16:58:41 -07:00
page_alloc.c	mm: mmzone: MIGRATE_CMA migration type added	2012-05-21 15:09:32 +02:00
page_cgroup.c	page_cgroup: fix horrid swap accounting regression	2012-03-06 08:18:23 -08:00
page_io.c	block: kill off REQ_UNPLUG	2011-03-10 08:52:27 +01:00
page_isolation.c	mm: page_isolation: codeclean fix comment and rm unneeded val init	2010-10-26 16:52:11 -07:00
page-writeback.c	Ext4 commits for 3.3 merge window; mostly cleanups and bug fixes	2012-03-28 10:02:55 -07:00
pagewalk.c	mm: thp: fix pmd_bad() triggering in code paths holding mmap_sem read mode	2012-03-21 17:54:54 -07:00
percpu-km.c	percpu: clear memory allocated with the km allocator	2010-10-02 10:28:42 +03:00
percpu-vm.c	percpu: use bitmap_clear	2012-01-20 09:23:16 -08:00
percpu.c	kmemleak: Fix the kmemleak tracking of the percpu areas with !SMP	2012-05-09 10:13:29 -07:00
pgtable-generic.c	thp: add HPAGE_PMD_* definitions for !CONFIG_TRANSPARENT_HUGEPAGE	2012-03-21 17:55:02 -07:00
prio_tree.c	sanitize <linux/prefetch.h> usage	2011-05-20 12:50:29 -07:00
process_vm_access.c	Fix race in process_vm_rw_core	2012-02-02 12:55:17 -08:00
quicklist.c	mm: delete various needless include <linux/module.h>	2011-10-31 09:20:11 -04:00
readahead.c	mm: Map most files to use export.h instead of module.h	2011-10-31 09:20:12 -04:00
rmap.c	memcg: use new logic for page stat accounting	2012-03-21 17:55:01 -07:00
shmem.c	Merge branch 'akpm' (Andrew's patch-bomb)	2012-03-22 09:04:48 -07:00
slab.c	Merge branch 'slab/for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/linux	2012-03-28 15:04:26 -07:00
slob.c	mm: Map most files to use export.h instead of module.h	2011-10-31 09:20:12 -04:00
slub.c	slub: missing test for partial pages flush work in flush_all()	2012-05-17 18:00:51 -07:00
sparse-vmemmap.c	mm: delete various needless include <linux/module.h>	2011-10-31 09:20:11 -04:00
sparse.c	bootmem/sparsemem: remove limit constraint in alloc_bootmem_section	2012-03-21 17:54:58 -07:00
swap_state.c	mm: fix s390 BUG by __set_page_dirty_no_writeback on swap	2012-04-23 18:19:22 -07:00
swap.c	mm: drain percpu lru add/rotate page-vectors on cpu hot-unplug	2012-03-21 17:54:58 -07:00
swapfile.c	swapon: check validity of swap_flags	2012-03-28 17:14:35 -07:00
thrash.c	mm/thrash.c: quiet sparse noise	2011-10-31 17:30:50 -07:00
truncate.c	mm for fs: add truncate_pagecache_range()	2012-03-28 17:14:35 -07:00
util.c	procfs: mark thread stack correctly in proc/<pid>/maps	2012-03-21 17:54:58 -07:00
vmalloc.c	mm: remove the second argument of k[un]map_atomic()	2012-03-20 21:48:27 +08:00
vmscan.c	mm: fix up the vmscan stat in vmstat	2012-04-25 21:26:33 -07:00
vmstat.c	mm: mmzone: MIGRATE_CMA migration type added	2012-05-21 15:09:32 +02:00