Lee Schermerhorn 89e004ea55 SHM_LOCKED pages are unevictable ... Shmem segments locked into memory via shmctl(SHM_LOCKED) should not be kept on the normal LRU, since scanning them is a waste of time and might throw off kswapd's balancing algorithms. Place them on the unevictable LRU list instead. Use the AS_UNEVICTABLE flag to mark address_space of SHM_LOCKed shared memory regions as unevictable. Then these pages will be culled off the normal LRU lists during vmscan. Add new wrapper function to clear the mapping's unevictable state when/if shared memory segment is munlocked. Add 'scan_mapping_unevictable_page()' to mm/vmscan.c to scan all pages in the shmem segment's mapping [struct address_space] for evictability now that they're no longer locked. If so, move them to the appropriate zone lru list. Changes depend on [CONFIG_]UNEVICTABLE_LRU. [kosaki.motohiro@jp.fujitsu.com: revert shm change] Signed-off-by: Lee Schermerhorn <lee.schermerhorn@hp.com> Signed-off-by: Rik van Riel <riel@redhat.com> Signed-off-by: Kosaki Motohiro <kosaki.motohiro@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2008-10-20 08:50:26 -07:00
..
allocpercpu.c	mm/allocpercpu.c: make 4 functions static	2008-07-26 12:00:12 -07:00
backing-dev.c	mm: bdi: fix race in bdi_class device creation	2008-05-20 13:31:53 -07:00
bootmem.c	misc: replace __FUNCTION__ with __func__	2008-10-16 11:21:30 -07:00
bounce.c	highmem: use bio_has_data() in the bounce path	2008-10-09 08:56:01 +02:00
dmapool.c	dmapool: enable debugging for CONFIG_SLUB_DEBUG_ON too	2008-04-28 08:58:20 -07:00
fadvise.c	Remove Andrew Morton's old email accounts	2008-10-16 11:21:32 -07:00
filemap_xip.c	mm: xip/ext2 fix block allocation race	2008-08-20 15:40:32 -07:00
filemap.c	vmscan: split LRU lists into anon & file sets	2008-10-20 08:50:25 -07:00
fremap.c	mmu-notifiers: core	2008-07-28 16:30:21 -07:00
highmem.c	x86, pat: avoid highmem cache attribute aliasing	2008-08-15 17:22:57 +02:00
hugetlb.c	vmscan: split LRU lists into anon & file sets	2008-10-20 08:50:25 -07:00
internal.h	Unevictable LRU Infrastructure	2008-10-20 08:50:26 -07:00
Kconfig	Unevictable LRU Infrastructure	2008-10-20 08:50:26 -07:00
maccess.c	kgdb: fix optional arch functions and probe_kernel_*	2008-04-17 20:05:39 +02:00
madvise.c	madvise: update function comment of madvise_dontneed	2008-07-30 09:41:45 -07:00
Makefile	mmu-notifiers: core	2008-07-28 16:30:21 -07:00
memcontrol.c	Unevictable LRU Page Statistics	2008-10-20 08:50:26 -07:00
memory_hotplug.c	vmscan: move isolate_lru_page() to vmscan.c	2008-10-20 08:50:25 -07:00
memory.c	vmscan: split LRU lists into anon & file sets	2008-10-20 08:50:25 -07:00
mempolicy.c	Unevictable LRU Infrastructure	2008-10-20 08:50:26 -07:00
mempool.c	spelling fixes: mm/	2007-10-20 01:27:18 +02:00
migrate.c	Unevictable LRU Infrastructure	2008-10-20 08:50:26 -07:00
mincore.c	mm: remove nopage	2008-04-28 08:58:18 -07:00
mlock.c	mlock() fix return values	2008-08-04 16:58:45 -07:00
mm_init.c	mm: mminit_loglevel cannot be __meminitdata anymore	2008-08-20 15:40:30 -07:00
mmap.c	mmap: fix petty bug in anonymous shared mmap offset handling	2008-09-03 19:58:53 -07:00
mmu_notifier.c	mmu-notifiers: core	2008-07-28 16:30:21 -07:00
mmzone.c	mm: mark the correct zone as full when scanning zonelists	2008-09-13 14:41:52 -07:00
mprotect.c	mmu-notifiers: core	2008-07-28 16:30:21 -07:00
mremap.c	mmu-notifiers: core	2008-07-28 16:30:21 -07:00
msync.c	Detach sched.h from mm.h	2007-05-21 09:18:19 -07:00
nommu.c	nommu: Provide vmalloc_exec().	2008-08-04 16:01:47 +09:00
oom_kill.c	security: Fix setting of PF_SUPERPRIV by __capable()	2008-08-14 22:59:43 +10:00
page_alloc.c	Unevictable LRU Page Statistics	2008-10-20 08:50:26 -07:00
page_io.c	mm: fix PageUptodate data race	2008-02-05 09:44:19 -08:00
page_isolation.c	memory hotplug: missing zone->lock in test_pages_isolated()	2008-10-02 15:53:13 -07:00
page-writeback.c	vmscan: split LRU lists into anon & file sets	2008-10-20 08:50:25 -07:00
pagewalk.c	pagemap: pass mm into pagewalkers	2008-06-12 18:05:41 -07:00
pdflush.c	Remove Andrew Morton's old email accounts	2008-10-16 11:21:32 -07:00
prio_tree.c	spelling fixes: mm/	2007-10-20 01:27:18 +02:00
quicklist.c	mm: size of quicklists shouldn't be proportional to the number of CPUs	2008-09-02 19:21:38 -07:00
readahead.c	vmscan: split LRU lists into anon & file sets	2008-10-20 08:50:25 -07:00
rmap.c	anon_vma_prepare: properly lock even newly allocated entries	2008-10-19 11:50:35 -07:00
shmem_acl.c	[PATCH] sanitize ->permission() prototype	2008-07-26 20:53:14 -04:00
shmem.c	SHM_LOCKED pages are unevictable	2008-10-20 08:50:26 -07:00
slab.c	mm: unexport ksize	2008-07-29 23:44:26 +03:00
slob.c	SLOB: fix bogus ksize calculation fix	2008-10-09 12:18:27 -07:00
slub.c	slub: fixed uninitialized counter in struct kmem_cache_node	2008-09-15 09:49:05 +03:00
sparse-vmemmap.c	Christoph has moved	2008-07-04 10:40:04 -07:00
sparse.c	mm/sparse.c: removed duplicated include	2008-08-12 16:07:30 -07:00
swap_state.c	vmscan: add newly swapped in pages to the inactive list	2008-10-20 08:50:25 -07:00
swap.c	Unevictable LRU Infrastructure	2008-10-20 08:50:26 -07:00
swapfile.c	vmscan: free swap space on swap-in/activation	2008-10-20 08:50:25 -07:00
thrash.c	Bug in mm/thrash.c function grab_swap_token()	2007-05-11 08:29:32 -07:00
tiny-shmem.c	mm: tiny-shmem nommu fix	2008-10-02 15:53:13 -07:00
truncate.c	Remove Andrew Morton's old email accounts	2008-10-16 11:21:32 -07:00
util.c	mm: Make generic weak get_user_pages_fast and EXPORT_GPL it	2008-08-12 17:52:53 +10:00
vmalloc.c	Merge branches 'x86/xen', 'x86/build', 'x86/microcode', 'x86/mm-debug-v2', 'x86/memory-corruption-check', 'x86/early-printk', 'x86/xsave', 'x86/ptrace-v2', 'x86/quirks', 'x86/setup', 'x86/spinlocks' and 'x86/signal' into x86/core-v2	2008-10-12 15:50:02 +02:00
vmscan.c	SHM_LOCKED pages are unevictable	2008-10-20 08:50:26 -07:00
vmstat.c	Unevictable LRU Page Statistics	2008-10-20 08:50:26 -07:00