Minchan Kim 03ef83af52 mm: fix for infinite churning of mlocked pages ... An mlocked page might lose the isolatation race. This causes the page to clear PG_mlocked while it remains in a VM_LOCKED vma. This means it can be put onto the [in]active list. We can rescue it by using try_to_unmap() in shrink_page_list(). But now, As Wu Fengguang pointed out, vmscan has a bug. If the page has PG_referenced, it can't reach try_to_unmap() in shrink_page_list() but is put into the active list. If the page is referenced repeatedly, it can remain on the [in]active list without being moving to the unevictable list. This patch fixes it. Reported-by: Wu Fengguang <fengguang.wu@intel.com> Signed-off-by: Minchan Kim <minchan.kim@gmail.com> Reviewed-by: KOSAKI Motohiro <<kosaki.motohiro@jp.fujitsu.com> Cc: Lee Schermerhorn <lee.schermerhorn@hp.com> Acked-by: Rik van Riel <riel@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2009-08-26 20:06:52 -07:00
..
Kconfig	Security/SELinux: seperate lsm specific mmap_min_addr	2009-08-17 15:09:11 +10:00
Kconfig.debug	kmemcheck: enable in the x86 Kconfig	2009-06-15 15:49:15 +02:00
Makefile	Merge branch 'akpm'	2009-06-16 19:50:13 -07:00
allocpercpu.c	percpu: __percpu_depopulate_mask can take a const mask	2009-04-06 13:44:15 -07:00
backing-dev.c	Fix congestion_wait() sync/async vs read/write confusion	2009-07-10 20:31:53 +02:00
bootmem.c	kmemleak: Add callbacks to the bootmem allocator	2009-07-08 14:25:14 +01:00
bounce.c	block: remove some includings of blktrace_api.h	2009-06-16 11:19:36 +02:00
debug-pagealloc.c	…
dmapool.c	dmapools: protect page_list walk in show_pools()	2009-06-30 18:56:00 -07:00
fadvise.c	readahead: move max_sane_readahead() calls into force_page_cache_readahead()	2009-06-16 19:47:28 -07:00
failslab.c	…
filemap.c	mm: mark page accessed before we write_end()	2009-07-06 13:57:03 -07:00
filemap_xip.c	…
fremap.c	…
highmem.c	block: remove some includings of blktrace_api.h	2009-06-16 11:19:36 +02:00
hugetlb.c	hugetlbfs: fix i_blocks accounting	2009-07-29 19:10:35 -07:00
init-mm.c	mm: consolidate init_mm definition	2009-06-16 19:47:28 -07:00
internal.h	vmscan: do not unconditionally treat zones that fail zone_reclaim() as full	2009-06-16 19:47:45 -07:00
kmemcheck.c	kmemcheck: add hooks for the page allocator	2009-06-15 15:48:33 +02:00
kmemleak-test.c	kmemleak: Simple testing module for kmemleak	2009-06-11 17:04:19 +01:00
kmemleak.c	kmemleak: Protect the seq start/next/stop sequence by rcu_read_lock()	2009-07-29 12:34:58 -07:00
maccess.c	[S390] maccess: add weak attribute to probe_kernel_write	2009-06-12 10:27:37 +02:00
madvise.c	mm: madvise(): correct return code	2009-06-16 19:47:40 -07:00
memcontrol.c	cgroup avoid permanent sleep at rmdir	2009-07-29 19:10:35 -07:00
memory.c	mm: Pass virtual address to [__]p{te,ud,md}_free_tlb()	2009-07-27 12:10:38 -07:00
memory_hotplug.c	page-allocator: reset wmark_min and inactive ratio of zone when hotplug happens	2009-06-16 19:47:42 -07:00
mempolicy.c	mm: make set_mempolicy(MPOL_INTERLEAV) N_HIGH_MEMORY aware	2009-08-07 10:39:55 -07:00
mempool.c	mempool.c: clean up type-casting	2009-08-10 08:31:16 -07:00
migrate.c	migration: only migrate_prep() once per move_pages()	2009-06-16 19:47:41 -07:00
mincore.c	…
mlock.c	mm: remove CONFIG_UNEVICTABLE_LRU config option	2009-06-16 19:47:42 -07:00
mm_init.c	…
mmap.c	Security/SELinux: seperate lsm specific mmap_min_addr	2009-08-17 15:09:11 +10:00
mmu_notifier.c	…
mmzone.c	[ARM] Double check memmap is actually valid with a memmap has unexpected holes V2	2009-05-18 11:22:24 +01:00
mprotect.c	perf_counter: Add mmap event hooks to mprotect()	2009-06-08 23:10:43 +02:00
mremap.c	…
msync.c	…
nommu.c	nommu: check fd read permission in validate_mmap_request()	2009-08-18 16:31:13 -07:00
oom_kill.c	mm: revert "oom: move oom_adj value"	2009-08-18 16:31:13 -07:00
page-writeback.c	Fix congestion_wait() sync/async vs read/write confusion	2009-07-10 20:31:53 +02:00
page_alloc.c	mm: build_zonelists(): move clear node_load[] to __build_all_zonelists()	2009-08-18 16:31:13 -07:00
page_cgroup.c	memcg: remove some redundant checks	2009-06-18 13:03:47 -07:00
page_io.c	mm: remove file argument from swap_readpage()	2009-06-16 19:47:44 -07:00
page_isolation.c	…
pagewalk.c	…
pdflush.c	Revert "mm: add /proc controls for pdflush threads"	2009-05-15 11:32:24 +02:00
percpu.c	percpu: use the right flag for get_vm_area()	2009-08-14 13:21:10 +09:00
prio_tree.c	…
quicklist.c	…
readahead.c	readahead: introduce context readahead algorithm	2009-06-16 19:47:30 -07:00
rmap.c	mm: fix for infinite churning of mlocked pages	2009-08-26 20:06:52 -07:00
shmem.c	Get "no acls for this inode" right, fix shmem breakage	2009-06-24 16:58:48 -04:00
shmem_acl.c	switch shmem to inode->i_acl	2009-06-24 08:17:06 -04:00
slab.c	SLAB: Fix lockdep annotations	2009-06-29 09:57:10 +03:00
slob.c	fix RCU-callback-after-kmem_cache_destroy problem in sl[aou]b	2009-06-26 12:10:47 +03:00
slub.c	kmemleak: Trace the kmalloc_large* functions in slub	2009-07-08 14:25:14 +01:00
sparse-vmemmap.c	…
sparse.c	…
swap.c	mm: fix Committed_AS underflow on large NR_CPUS environment	2009-05-02 15:36:10 -07:00
swap_state.c	mm: remove file argument from swap_readpage()	2009-06-16 19:47:44 -07:00
swapfile.c	PM / Hibernate: Replace bdget call with simple atomic_inc of i_count	2009-07-29 21:07:55 +02:00
thrash.c	mm: pass mm to grab_swap_token	2009-06-23 12:50:05 -07:00
truncate.c	mm: remove __invalidate_mapping_pages variant	2009-06-16 19:47:43 -07:00
util.c	Merge branches 'slab/documentation', 'slab/fixes', 'slob/cleanups' and 'slub/fixes' into for-linus	2009-06-17 08:30:15 +03:00
vmalloc.c	Merge branch 'for-linus' of git://linux-arm.org/linux-2.6	2009-06-11 14:15:57 -07:00
vmscan.c	mm: fix for infinite churning of mlocked pages	2009-08-26 20:06:52 -07:00
vmstat.c	vmscan: count the number of times zone_reclaim() scans and fails	2009-06-16 19:47:46 -07:00