Shaohua Li f7ad2a6cb9 mm: move MADV_FREE pages into LRU_INACTIVE_FILE list ... madv()'s MADV_FREE indicate pages are 'lazyfree'. They are still anonymous pages, but they can be freed without pageout. To distinguish these from normal anonymous pages, we clear their SwapBacked flag. MADV_FREE pages could be freed without pageout, so they pretty much like used once file pages. For such pages, we'd like to reclaim them once there is memory pressure. Also it might be unfair reclaiming MADV_FREE pages always before used once file pages and we definitively want to reclaim the pages before other anonymous and file pages. To speed up MADV_FREE pages reclaim, we put the pages into LRU_INACTIVE_FILE list. The rationale is LRU_INACTIVE_FILE list is tiny nowadays and should be full of used once file pages. Reclaiming MADV_FREE pages will not have much interfere of anonymous and active file pages. And the inactive file pages and MADV_FREE pages will be reclaimed according to their age, so we don't reclaim too many MADV_FREE pages too. Putting the MADV_FREE pages into LRU_INACTIVE_FILE_LIST also means we can reclaim the pages without swap support. This idea is suggested by Johannes. This patch doesn't move MADV_FREE pages to LRU_INACTIVE_FILE list yet to avoid bisect failure, next patch will do it. The patch is based on Minchan's original patch. [akpm@linux-foundation.org: coding-style fixes] Link: http://lkml.kernel.org/r/2f87063c1e9354677b7618c647abde77b07561e5.1487965799.git.shli@fb.com Signed-off-by: Shaohua Li <shli@fb.com> Suggested-by: Johannes Weiner <hannes@cmpxchg.org> Acked-by: Johannes Weiner <hannes@cmpxchg.org> Acked-by: Minchan Kim <minchan@kernel.org> Acked-by: Michal Hocko <mhocko@suse.com> Acked-by: Hillf Danton <hillf.zj@alibaba-inc.com> Cc: Hugh Dickins <hughd@google.com> Cc: Rik van Riel <riel@redhat.com> Cc: Mel Gorman <mgorman@techsingularity.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2017-05-03 15:52:08 -07:00
..
kasan	kasan: report only the first error by default	2017-03-31 17:13:30 -07:00
backing-dev.c	bdi: Drop 'parent' argument from bdi_register[_va]()	2017-04-20 12:09:55 -06:00
balloon_compaction.c	mm: balloon: use general non-lru movable page feature	2016-07-26 16:19:19 -07:00
bootmem.c	mm/bootmem.c: cosmetic improvement of code readability	2017-02-22 16:41:29 -08:00
cleancache.c	cleancache: constify cleancache_ops structure	2016-01-27 09:09:57 -05:00
cma_debug.c	mm: cma_alloc: allow to specify GFP mask	2017-02-24 17:46:55 -08:00
cma.c	mm: cma: print allocation failure reason and bitmap status	2017-02-24 17:46:55 -08:00
cma.h
compaction.c	sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>	2017-03-02 08:42:32 +01:00
debug_page_ref.c	mm/page_ref: add tracepoint to track down page reference manipulation	2016-03-17 15:09:34 -07:00
debug.c	mm, debug: print raw struct page data in __dump_page()	2016-12-12 18:55:08 -08:00
dmapool.c	lib/vsprintf.c: remove %Z support	2017-02-27 18:43:47 -08:00
early_ioremap.c
fadvise.c	mm: fadvise: avoid expensive remote LRU cache draining after FADV_DONTNEED	2016-12-20 09:48:46 -08:00
failslab.c	mm: fault-inject take over bootstrap kmem_cache check	2016-03-15 16:55:16 -07:00
filemap.c	Merge branch 'work.iov_iter' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-05-02 11:18:50 -07:00
frame_vector.c	mm: replace get_vaddr_frames() write/force parameters with gup_flags	2016-10-19 08:11:24 -07:00
frontswap.c	mm, frontswap: convert frontswap_enabled to static key	2016-07-26 16:19:19 -07:00
gup.c	Revert "x86/mm/gup: Switch GUP to the generic get_user_page_fast() implementation"	2017-04-23 11:45:20 +02:00
highmem.c	mm/highmem: make nr_free_highpages() handles all highmem zones by itself	2016-05-19 19:12:14 -07:00
huge_memory.c	mm: move MADV_FREE pages into LRU_INACTIVE_FILE list	2017-05-03 15:52:08 -07:00
hugetlb_cgroup.c	mm, hugetlb_cgroup: round limit_in_bytes down to hugepage size	2016-05-20 17:58:30 -07:00
hugetlb.c	mm/hugetlb.c: don't call region_abort if region_chg fails	2017-03-31 17:13:30 -07:00
hwpoison-inject.c
init-mm.c	mm: Add a user_ns owner to mm_struct and fix ptrace permission checks	2016-11-22 11:49:48 -06:00
internal.h	mm: delete NR_PAGES_SCANNED and pgdat_reclaimable()	2017-05-03 15:52:08 -07:00
interval_tree.c
Kconfig	mm: remove AVR32 arch special handling in mm/Kconfig	2017-05-01 09:36:31 +02:00
Kconfig.debug	mm: add arch-independent testcases for RODATA	2017-02-27 18:43:48 -08:00
khugepaged.c	mm: don't assume anonymous pages have SwapBacked flag	2017-05-03 15:52:08 -07:00
kmemcheck.c	mm: convert printk(KERN_<LEVEL> to pr_<level>	2016-03-17 15:09:34 -07:00
kmemleak-test.c	mm: convert printk(KERN_<LEVEL> to pr_<level>	2016-03-17 15:09:34 -07:00
kmemleak.c	mm: fix section name for .data..ro_after_init	2017-03-31 17:13:30 -07:00
ksm.c	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/coredump.h>	2017-03-02 08:42:28 +01:00
list_lru.c	mm/list_lru.c: avoid error-path NULL pointer deref	2016-10-27 18:43:42 -07:00
maccess.c	x86: remove more uaccess_32.h complexity	2016-05-22 17:21:27 -07:00
madvise.c	mm: move MADV_FREE pages into LRU_INACTIVE_FILE list	2017-05-03 15:52:08 -07:00
Makefile	mm: add arch-independent testcases for RODATA	2017-02-27 18:43:48 -08:00
memblock.c	mm/memblock.c: fix memblock_next_valid_pfn()	2017-03-09 17:01:10 -08:00
memcontrol.c	mm: do not call mem_cgroup_free() from within mem_cgroup_alloc()	2017-03-09 17:01:10 -08:00
memory_hotplug.c	mm: add private lock to serialize memory hotplug operations	2017-03-16 16:56:18 -07:00
memory-failure.c	mm: delete unnecessary TTU_* flags	2017-05-03 15:52:08 -07:00
memory.c	Merge branch 'parisc-4.11-3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux into uaccess.parisc	2017-04-02 10:33:48 -04:00
mempolicy.c	mm/mempolicy.c: fix error handling in set_mempolicy and mbind.	2017-04-08 10:57:55 -07:00
mempool.c	Revert "mm, mempool: only set __GFP_NOMEMALLOC if there are free elements"	2016-07-28 16:07:41 -07:00
memtest.c
migrate.c	mm: don't assume anonymous pages have SwapBacked flag	2017-05-03 15:52:08 -07:00
mincore.c	mm: remove shmem_mapping() shmem_zero_setup() duplicates	2017-02-24 17:46:56 -08:00
mlock.c	Merge branch 'prep-for-5level'	2017-03-10 08:59:07 -08:00
mm_init.c	mm: convert printk(KERN_<LEVEL> to pr_<level>	2016-03-17 15:09:34 -07:00
mmap.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-03-02 15:20:00 -08:00
mmu_context.c	sched/headers: Prepare to move the task_lock()/unlock() APIs to <linux/sched/task.h>	2017-03-02 08:42:38 +01:00
mmu_notifier.c	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/mm.h>	2017-03-02 08:42:28 +01:00
mmzone.c	mm/mmzone.c: swap likely to unlikely as code logic is different for next_zones_zonelist()	2017-02-22 16:41:29 -08:00
mprotect.c	mm: convert generic code to 5-level paging	2017-03-09 11:48:47 -08:00
mremap.c	mm: convert generic code to 5-level paging	2017-03-09 11:48:47 -08:00
msync.c
nobootmem.c	mm: kmemleak: avoid using __va() on addresses that don't have a lowmem mapping	2016-10-11 15:06:33 -07:00
nommu.c	Merge branch 'WIP.sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2017-03-03 10:16:38 -08:00
oom_kill.c	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task.h>	2017-03-02 08:42:35 +01:00
page_alloc.c	mm: remove unnecessary back-off function when retrying page reclaim	2017-05-03 15:52:08 -07:00
page_counter.c
page_ext.c	mm/page_ext: support extra space allocation by page_ext user	2016-10-07 18:46:27 -07:00
page_idle.c	mm: fix handling PTE-mapped THPs in page_idle_clear_pte_refs()	2017-02-24 17:46:55 -08:00
page_io.c	writeback: add wbc_to_write_flags()	2016-11-02 10:24:03 -06:00
page_isolation.c	mm, page_alloc: avoid page_to_pfn() when merging buddies	2017-02-22 16:41:27 -08:00
page_owner.c	mm/page_owner: don't define fields on struct page_ext by hard-coding	2016-10-07 18:46:27 -07:00
page_poison.c	mm: check the return value of lookup_page_ext for all call sites	2016-06-03 15:06:22 -07:00
page_vma_mapped.c	mm: fix page_vma_mapped_walk() for ksm pages	2017-04-08 00:47:48 -07:00
page-writeback.c	mm/page-writeback.c: use setup_deferrable_timer	2017-05-03 15:52:08 -07:00
pagewalk.c	mm: convert generic code to 5-level paging	2017-03-09 11:48:47 -08:00
percpu-km.c	mm: percpu: use pr_fmt to prefix output	2016-03-17 15:09:34 -07:00
percpu-vm.c	percpu: remove unused chunk_alloc parameter from pcpu_get_pages()	2017-03-06 15:56:55 -05:00
percpu.c	Merge branch 'sched/core' into locking/core	2017-04-04 11:31:12 +02:00
pgtable-generic.c	mm: convert generic code to 5-level paging	2017-03-09 11:48:47 -08:00
process_vm_access.c	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/mm.h>	2017-03-02 08:42:28 +01:00
quicklist.c	fix Christoph's email addresses	2016-03-17 15:09:34 -07:00
readahead.c	mm: don't cap request size based on read-ahead setting	2016-12-12 18:55:08 -08:00
rmap.c	mm: don't assume anonymous pages have SwapBacked flag	2017-05-03 15:52:08 -07:00
rodata_test.c	mm: add arch-independent testcases for RODATA	2017-02-27 18:43:48 -08:00
shmem.c	Merge branch 'rebased-statx' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-03-03 11:38:56 -08:00
slab_common.c	kasan: drain quarantine of memcg slab objects	2017-02-24 17:46:56 -08:00
slab.c	slab: avoid IPIs when creating kmem caches	2017-05-03 15:52:07 -07:00
slab.h	slab: remove synchronous synchronize_sched() from memcg cache deactivation path	2017-02-22 16:41:27 -08:00
slob.c	slab: introduce __kmemcg_cache_deactivate()	2017-02-22 16:41:27 -08:00
slub.c	slub: make sysfs directories for memcg sub-caches optional	2017-02-22 16:41:27 -08:00
sparse-vmemmap.c	mm: convert generic code to 5-level paging	2017-03-09 11:48:47 -08:00
sparse.c	mm/memory_hotplug: set magic number to page->freelist instead of page->lru.next	2017-02-22 16:41:29 -08:00
swap_cgroup.c	mm, swap_cgroup: reschedule when neeed in swap_cgroup_swapoff()	2017-04-08 00:47:49 -07:00
swap_slots.c	mm, swap: Remove WARN_ON_ONCE() in free_swap_slot()	2017-03-21 14:13:19 -07:00
swap_state.c	mm/swap: skip readahead only when swap slot cache is enabled	2017-02-22 16:41:30 -08:00
swap.c	mm: move MADV_FREE pages into LRU_INACTIVE_FILE list	2017-05-03 15:52:08 -07:00
swapfile.c	mm: convert generic code to 5-level paging	2017-03-09 11:48:47 -08:00
truncate.c	fs: add i_blocksize()	2017-02-27 18:43:46 -08:00
usercopy.c	mm/usercopy: Drop extra is_vmalloc_or_module() check	2017-04-05 12:30:18 -07:00
userfaultfd.c	mm: convert generic code to 5-level paging	2017-03-09 11:48:47 -08:00
util.c	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task_stack.h>	2017-03-02 08:42:36 +01:00
vmacache.c	sched/headers: Prepare to move 'init_task' and 'init_thread_union' from <linux/sched.h> to <linux/sched/task.h>	2017-03-02 08:42:38 +01:00
vmalloc.c	A reasonably busy cycle for documentation this time around. There is a new	2017-05-02 10:21:17 -07:00
vmpressure.c	mm: vmpressure: fix sending wrong events on underflow	2017-02-24 17:46:56 -08:00
vmscan.c	mm: delete unnecessary TTU_* flags	2017-05-03 15:52:08 -07:00
vmstat.c	mm: move MADV_FREE pages into LRU_INACTIVE_FILE list	2017-05-03 15:52:08 -07:00
workingset.c	mm: workingset: fix premature shadow node shrinking with cgroups	2017-03-31 17:13:30 -07:00
z3fold.c	z3fold: fix page locking in z3fold_alloc()	2017-04-13 18:24:20 -07:00
zbud.c	mm/zbud.c: use list_last_entry() instead of list_tail_entry()	2016-01-15 11:40:52 -08:00
zpool.c
zsmalloc.c	zsmalloc: expand class bit	2017-04-13 18:24:21 -07:00
zswap.c	zswap: don't param_set_charp while holding spinlock	2017-02-27 18:43:45 -08:00