Johannes Weiner 3fbe724424 mm: memcontrol: simplify detecting when the memory+swap limit is hit ... When attempting to charge pages, we first charge the memory counter and then the memory+swap counter. If one of the counters is at its limit, we enter reclaim, but if it's the memory+swap counter, reclaim shouldn't swap because that wouldn't change the situation. However, if the counters have the same limits, we never get to the memory+swap limit. To know whether reclaim should swap or not, there is a state flag that indicates whether the limits are equal and whether hitting the memory limit implies hitting the memory+swap limit. Just try the memory+swap counter first. Signed-off-by: Johannes Weiner <hannes@cmpxchg.org> Reviewed-by: Vladimir Davydov <vdavydov@parallels.com> Acked-by: Michal Hocko <mhocko@suse.cz> Cc: Dave Hansen <dave@sr71.net> Cc: Greg Thelen <gthelen@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2014-10-09 22:25:59 -04:00
..
backing-dev.c	mm: clean up zone flags	2014-10-09 22:25:57 -04:00
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
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/compaction.c: fix warning of 'flags' may be used uninitialized	2014-10-09 22:25:57 -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: add/remove sysfs file outside of the pool lock lock	2014-10-09 22:25:59 -04:00
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	NFS client updates for Linux 3.18	2014-10-08 12:49:23 -04:00
fremap.c	mm: mark remap_file_pages() syscall as deprecated	2014-06-06 16:08:17 -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	kvm: Faults which trigger IO release the mmap_sem	2014-09-24 14:07:54 +02:00
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_cgroup.c	hugetlb_cgroup: use lockdep_assert_held rather than spin_is_locked	2014-08-29 16:28:16 -07:00
hugetlb.c	mm: convert a few VM_BUG_ON callers to VM_BUG_ON_VMA	2014-10-09 22:25:57 -04:00
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/zpool: update zswap to use zpool	2014-08-06 18:01:23 -07:00
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	sched: Remove proliferation of wait_on_bit() action functions	2014-07-16 15:10:39 +02:00
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: update the description for madvise_remove	2014-08-06 18:01:18 -07:00
Makefile	mm: move debug code out of page_alloc.c	2014-10-09 22:25:58 -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	mm: memcontrol: simplify detecting when the memory+swap limit is hit	2014-10-09 22:25:59 -04:00
memory_hotplug.c	memory-hotplug: add sysfs valid_zones attribute	2014-10-09 22:25:52 -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
mempolicy.c	mempolicy: unexport get_vma_policy() and remove its "task" arg	2014-10-09 22:25:56 -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: migrate: Close race between migration completion and mprotect	2014-10-02 11:57:18 -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: use VM_BUG_ON_MM where possible	2014-10-09 22:25:58 -04:00
mm_init.c	mm: bring back /sys/kernel/mm	2014-01-27 21:02:39 -08:00
mmap.c	mm: use VM_BUG_ON_MM where possible	2014-10-09 22:25:58 -04:00
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	kvm: Fix page ageing bugs	2014-09-24 14:07:58 +02:00
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: convert a few VM_BUG_ON callers to VM_BUG_ON_VMA	2014-10-09 22:25:57 -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_alloc.c	mm: move debug code out of page_alloc.c	2014-10-09 22:25:58 -04:00
page_cgroup.c	mm/page_cgroup.c: mark functions as static	2014-04-03 16:21:02 -07:00
page_io.c	fix __swap_writepage() compile failure on old gcc versions	2014-06-14 19:30:48 -05:00
page_isolation.c
page-writeback.c	mm/page-writeback.c: use min3/max3 macros to avoid shadow warnings	2014-10-09 22:25:57 -04:00
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	start adding the tag to iov_iter	2014-05-06 17:32:49 -04:00
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_common.c	memcg: move memcg_update_cache_size() to slab_common.c	2014-10-09 22:25:59 -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
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	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	mm: memcontrol: do not kill uncharge batching in free_pages_and_swap_cache	2014-10-09 22:25:59 -04:00
swap.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	mm,vmacache: optimize overflow system-wide flushing	2014-06-04 16:53:57 -07:00
vmalloc.c	mm/vmalloc.c: use seq_open_private() instead of seq_open()	2014-10-09 22:25:56 -04:00
vmpressure.c	arm, pm, vmpressure: add missing slab.h includes	2014-02-03 13:24:01 -05:00
vmscan.c	mm: clean up zone flags	2014-10-09 22:25:57 -04:00
vmstat.c	mm: vmscan: only update per-cpu thresholds for online CPU	2014-08-06 18:01:20 -07:00
workingset.c	mm: keep page cache radix tree nodes in check	2014-04-03 16:21:01 -07:00
zbud.c	mm/zpool: use prefixed module loading	2014-08-29 16:28:16 -07:00
zpool.c	mm/zpool: use prefixed module loading	2014-08-29 16:28:16 -07:00
zsmalloc.c	mm/zpool: use prefixed module loading	2014-08-29 16:28:16 -07:00
zswap.c	mm/zswap.c: add __init to zswap_entry_cache_destroy()	2014-08-08 15:57:18 -07:00