David Rientjes 7b0d44fa49 oom: avoid killing kthreads if they assume the oom killed thread's mm ... After selecting a task to kill, the oom killer iterates all processes and kills all other threads that share the same mm_struct in different thread groups. It would not otherwise be helpful to kill a thread if its memory would not be subsequently freed. A kernel thread, however, may assume a user thread's mm by using use_mm(). This is only temporary and should not result in sending a SIGKILL to that kthread. This patch ensures that only user threads and not kthreads are sent a SIGKILL if they share the same mm_struct as the oom killed task. Signed-off-by: David Rientjes <rientjes@google.com> Reviewed-by: Michal Hocko <mhocko@suse.cz> Reviewed-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>		2011-10-31 17:30:45 -07:00
..
backing-dev.c	mm: Add comment explaining task state setting in bdi_forker_thread()	2011-09-02 17:17:02 -06:00
bootmem.c
bounce.c
cleancache.c	mm: cleancache core ops functions and config	2011-05-26 10:01:36 -06:00
compaction.c	mm: compaction: make isolate_lru_page() filter-aware	2011-10-31 17:30:44 -07:00
debug-pagealloc.c
dmapool.c	devres: fix possible use after free	2011-07-25 20:57:14 -07:00
fadvise.c
failslab.c	fault-injection: add ability to export fault_attr in arbitrary directory	2011-08-03 14:25:20 -10:00
filemap_xip.c	mm: Convert i_mmap_lock to a mutex	2011-05-25 08:39:18 -07:00
filemap.c	vfs: iov_iter: have iov_iter_advance decrement nr_segs appropriately	2011-10-28 13:55:08 +02:00
fremap.c	mm: don't access vm_flags as 'int'	2011-05-26 09:20:31 -07:00
highmem.c	mm: make HASHED_PAGE_VIRTUAL page_address' struct page argument const.	2011-08-17 13:00:20 -07:00
huge_memory.c	mm/huge_memory.c: minor lock simplification in __khugepaged_exit	2011-07-25 20:57:09 -07:00
hugetlb.c	mm: hugetlb: fix coding style issues	2011-07-25 20:57:09 -07:00
hwpoison-inject.c
init-mm.c	atomic: use <linux/atomic.h>	2011-07-26 16:49:47 -07:00
internal.h	mm: nommu: sort mm->mmap list properly	2011-05-25 08:39:05 -07:00
Kconfig	mm Kconfig typo: cleancacne -> cleancache	2011-06-10 14:47:52 +02:00
Kconfig.debug
kmemcheck.c
kmemleak-test.c
kmemleak.c	atomic: use <linux/atomic.h>	2011-07-26 16:49:47 -07:00
ksm.c	ksm: fix NULL pointer dereference in scan_get_next_rmap_item()	2011-06-15 20:04:02 -07:00
maccess.c	maccess,probe_kernel: Make write/read src const void *	2011-05-25 19:56:23 -04:00
madvise.c	fs: kill i_alloc_sem	2011-07-20 20:47:46 -04:00
Makefile	Cross Memory Attach	2011-10-31 17:30:44 -07:00
memblock.c	mm/memblock.c: avoid abuse of RED_INACTIVE	2011-07-25 20:57:09 -07:00
memcontrol.c	mm: change isolate mode from #define to bitwise type	2011-10-31 17:30:44 -07:00
memory_hotplug.c	mm: extend memory hotplug API to allow memory hotplug in virtual machines	2011-07-25 20:57:08 -07:00
memory-failure.c	HWPoison: add memory_failure_queue()	2011-08-03 11:15:58 -04:00
memory.c	mm/futex: fix futex writes on archs with SW tracking of dirty & young	2011-07-25 20:57:11 -07:00
mempolicy.c	mm/mempolicy.c: make copy_from_user() provably correct	2011-09-14 18:09:36 -07:00
mempool.c
migrate.c	mm: migration: clean up unmap_and_move()	2011-10-31 17:30:45 -07:00
mincore.c	mm: clarify the radix_tree exceptional cases	2011-08-03 14:25:24 -10:00
mlock.c	mm: don't access vm_flags as 'int'	2011-05-26 09:20:31 -07:00
mm_init.c
mmap.c	mmap: fix and tidy up overcommit page arithmetic	2011-07-25 20:57:09 -07:00
mmu_context.c
mmu_notifier.c
mmzone.c
mprotect.c
mremap.c	mm: Convert i_mmap_lock to a mutex	2011-05-25 08:39:18 -07:00
msync.c
nobootmem.c	memblock/nobootmem: remove unneeded code from alloc_bootmem_node_high()	2011-05-25 08:39:31 -07:00
nommu.c	mmap: fix and tidy up overcommit page arithmetic	2011-07-25 20:57:09 -07:00
oom_kill.c	oom: avoid killing kthreads if they assume the oom killed thread's mm	2011-10-31 17:30:45 -07:00
page_alloc.c	fault-injection: add ability to export fault_attr in arbitrary directory	2011-08-03 14:25:20 -10:00
page_cgroup.c	mm: Convert vmalloc/memset to vzalloc	2011-09-15 13:56:56 +02:00
page_io.c
page_isolation.c
page-writeback.c	mm/page-writeback.c: document bdi_min_ratio	2011-10-31 17:30:45 -07:00
pagewalk.c	pagewalk: fix code comment for THP	2011-07-25 20:57:09 -07:00
percpu-km.c
percpu-vm.c
percpu.c	Merge branch 'for-2.6.40' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu	2011-05-24 11:53:42 -07:00
pgtable-generic.c
prio_tree.c	sanitize <linux/prefetch.h> usage	2011-05-20 12:50:29 -07:00
process_vm_access.c	Cross Memory Attach	2011-10-31 17:30:44 -07:00
quicklist.c
readahead.c	readahead: readahead page allocations are OK to fail	2011-05-25 08:39:25 -07:00
rmap.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/wfg/writeback	2011-07-26 10:39:54 -07:00
shmem.c	Merge branch 'next-evm' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/ima-2.6 into next	2011-08-09 10:31:03 +10:00
slab.c	mm: restrict access to slab files under procfs and sysfs	2011-09-27 22:59:27 +03:00
slob.c	atomic: use <linux/atomic.h>	2011-07-26 16:49:47 -07:00
slub.c	Merge branches 'slab/next' and 'slub/partial' into slab/for-linus	2011-10-26 18:09:12 +03:00
sparse-vmemmap.c
sparse.c	mm: make some struct page's const	2011-07-25 20:57:07 -07:00
swap_state.c
swap.c	mm: batch activate_page() to reduce lock contention	2011-05-25 08:39:37 -07:00
swapfile.c	mm: let swap use exceptional entries	2011-08-03 14:25:22 -10:00
thrash.c	mm: swap-token: add a comment for priority aging	2011-07-25 20:57:08 -07:00
truncate.c	mm: a few small updates for radix-swap	2011-08-03 14:25:24 -10:00
util.c	mm: nommu: sort mm->mmap list properly	2011-05-25 08:39:05 -07:00
vmalloc.c	mm: sync vmalloc address space page tables in alloc_vm_area()	2011-09-14 18:09:38 -07:00
vmscan.c	vmscan: add block plug for page reclaim	2011-10-31 17:30:45 -07:00
vmstat.c	numa: fix NUMA compile error when sysfs and procfs are disabled	2011-09-14 18:09:37 -07:00