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Mel Gorman 72807a74c0 page allocator: sanity check order in the page allocator slow path 
Callers may speculatively call different allocators in order of preference
trying to allocate a buffer of a given size.  The order needed to allocate
this may be larger than what the page allocator can normally handle.
While the allocator mostly does the right thing, it should not direct
reclaim or wakeup kswapd with a bogus order.  This patch sanity checks the
order in the slow path and returns NULL if it is too large.

Signed-off-by: Mel Gorman <mel@csn.ul.ie>
Signed-off-by: Dave Hansen <dave@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-06-16 19:47:36 -07:00
..
allocpercpu.c
percpu: __percpu_depopulate_mask can take a const mask
2009-04-06 13:44:15 -07:00
backing-dev.c
block: change the request allocation/congestion logic to be sync/async based
2009-04-06 08:04:53 -07:00
bootmem.c
bootmem: fix slab fallback on numa
2009-06-11 19:15:54 +03:00
bounce.c
Merge branch 'for-2.6.31' of git://git.kernel.dk/linux-2.6-block
2009-06-11 11:10:35 -07:00
debug-pagealloc.c
generic debug pagealloc
2009-04-01 08:59:13 -07:00
dmapool.c
dmapool: enable debugging for CONFIG_SLUB_DEBUG_ON too
2008-04-28 08:58:20 -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
kmemtrace, mm: fix slab.h dependency problem in mm/failslab.c
2009-04-03 12:23:01 +02:00
filemap_xip.c
mm: do_xip_mapping_read: fix length calculation
2009-04-02 19:04:49 -07:00
filemap.c
page allocator: do not check NUMA node ID when the caller knows the node is valid
2009-06-16 19:47:32 -07:00
fremap.c
Do not account for the address space used by hugetlbfs using VM_ACCOUNT
2009-02-10 10:48:42 -08:00
highmem.c
mm: introduce debug_kmap_atomic
2009-04-01 08:59:14 -07:00
hugetlb.c
page allocator: use a pre-calculated value instead of num_online_nodes() in fast paths
2009-06-16 19:47:35 -07:00
init-mm.c
mm: consolidate init_mm definition
2009-06-16 19:47:28 -07:00
internal.h
page allocator: move free_page_mlock() to page_alloc.c
2009-06-16 19:47:35 -07:00
Kconfig
security: use mmap_min_addr indepedently of security models
2009-06-04 12:07:48 +10:00
Kconfig.debug
generic debug pagealloc: build fix
2009-04-02 19:04:48 -07:00
kmemleak-test.c
kmemleak: Simple testing module for kmemleak
2009-06-11 17:04:19 +01:00
kmemleak.c
kmemleak: Add the base support
2009-06-11 17:03:28 +01:00
maccess.c
[S390] maccess: add weak attribute to probe_kernel_write
2009-06-12 10:27:37 +02:00
madvise.c
readahead: move max_sane_readahead() calls into force_page_cache_readahead()
2009-06-16 19:47:28 -07:00
Makefile
mm: consolidate init_mm definition
2009-06-16 19:47:28 -07:00
memcontrol.c
memcg: fix build warning and avoid checking for mem != null again and again
2009-05-29 08:40:03 -07:00
memory_hotplug.c
mm: remove GFP_HIGHUSER_PAGECACHE
2009-01-06 15:59:01 -08:00
memory.c
mm: clean up get_user_pages_fast() documentation
2009-06-16 19:47:30 -07:00
mempolicy.c
page allocator: do not check NUMA node ID when the caller knows the node is valid
2009-06-16 19:47:32 -07:00
mempool.c
spelling fixes: mm/
2007-10-20 01:27:18 +02:00
migrate.c
page allocator: do not check NUMA node ID when the caller knows the node is valid
2009-06-16 19:47:32 -07:00
mincore.c
[CVE-2009-0029] System call wrappers part 14
2009-01-14 14:15:24 +01:00
mlock.c
x86, bts, mm: clean up buffer allocation
2009-04-24 10:18:52 +02:00
mm_init.c
mm: mminit_loglevel cannot be __meminitdata anymore
2008-08-20 15:40:30 -07:00
mmap.c
Merge branch 'perfcounters-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2009-06-11 14:01:07 -07:00
mmu_notifier.c
mmu-notifiers: core
2008-07-28 16:30:21 -07:00
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
[CVE-2009-0029] System call wrappers part 13
2009-01-14 14:15:23 +01:00
msync.c
[CVE-2009-0029] System call wrappers part 13
2009-01-14 14:15:23 +01:00
nommu.c
nommu: Provide mmap_min_addr definition.
2009-06-10 09:24:09 +10:00
oom_kill.c
oom: fix possible oom_dump_tasks NULL pointer
2009-05-29 08:40:01 -07:00
page_alloc.c
page allocator: sanity check order in the page allocator slow path
2009-06-16 19:47:36 -07:00
page_cgroup.c
memcg: fix page_cgroup fatal error in FLATMEM
2009-06-12 11:00:54 +03:00
page_io.c
block: fix bad definition of BIO_RW_SYNC
2009-02-18 10:32:00 +01:00
page_isolation.c
memory hotplug: fix page_zone() calculation in test_pages_isolated()
2008-11-06 15:41:19 -08:00
page-writeback.c
mm/page-writeback.c: dirty limit type should be unsigned long
2009-06-16 19:47:31 -07:00
pagewalk.c
pagemap: pass mm into pagewalkers
2008-06-12 18:05:41 -07:00
pdflush.c
Revert "mm: add /proc controls for pdflush threads"
2009-05-15 11:32:24 +02:00
percpu.c
percpu: remove rbtree and use page->index instead
2009-04-08 18:31:31 +02:00
prio_tree.c
spelling fixes: mm/
2007-10-20 01:27:18 +02:00
quicklist.c
cpumask: replace node_to_cpumask with cpumask_of_node.
2009-03-13 14:49:46 +10:30
readahead.c
readahead: introduce context readahead algorithm
2009-06-16 19:47:30 -07:00
rmap.c
hugh: update email address
2009-05-21 13:14:32 -07:00
shmem_acl.c
[PATCH] sanitize ->permission() prototype
2008-07-26 20:53:14 -04:00
shmem.c
integrity: move ima_counts_get
2009-05-22 09:45:33 +10:00
slab.c
page allocator: slab: use nr_online_nodes to check for a NUMA platform
2009-06-16 19:47:35 -07:00
slob.c
page allocator: do not check NUMA node ID when the caller knows the node is valid
2009-06-16 19:47:32 -07:00
slub.c
page allocator: use a pre-calculated value instead of num_online_nodes() in fast paths
2009-06-16 19:47:35 -07:00
sparse-vmemmap.c
vmemmap: warn about page_structs with remote distance
2008-11-06 15:41:19 -08:00
sparse.c
mm: mminit_validate_memmodel_limits(): remove redundant test
2009-04-01 08:59:11 -07:00
swap_state.c
memcg: fix deadlock between lock_page_cgroup and mapping tree_lock
2009-05-29 08:40:02 -07:00
swap.c
mm: fix Committed_AS underflow on large NR_CPUS environment
2009-05-02 15:36:10 -07:00
swapfile.c
PM/hibernate: fix "swap breaks after hibernation failures"
2009-02-21 14:17:17 -08:00
thrash.c
Bug in mm/thrash.c function grab_swap_token()
2007-05-11 08:29:32 -07:00
truncate.c
memcg: fix deadlock between lock_page_cgroup and mapping tree_lock
2009-05-29 08:40:02 -07:00
util.c
mm: clean up get_user_pages_fast() documentation
2009-06-16 19:47:30 -07:00
vmalloc.c
Merge branch 'for-linus' of git://linux-arm.org/linux-2.6
2009-06-11 14:15:57 -07:00
vmscan.c
page allocator: use allocation flags as an index to the zone watermark
2009-06-16 19:47:35 -07:00
vmstat.c
page allocator: use allocation flags as an index to the zone watermark
2009-06-16 19:47:35 -07:00