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Michal Hocko 7c05126793 mm, fork: make dup_mmap wait for mmap_sem for write killable 
dup_mmap needs to lock current's mm mmap_sem for write.  If the waiting
task gets killed by the oom killer it would block oom_reaper from
asynchronous address space reclaim and reduce the chances of timely OOM
resolving.  Wait for the lock in the killable mode and return with EINTR
if the task got killed while waiting.

Signed-off-by: Michal Hocko <mhocko@suse.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Konstantin Khlebnikov <koct9i@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-05-23 17:04:14 -07:00
..
bpf
bpf: teach verifier to recognize imm += ptr pattern
2016-05-20 19:53:03 -04:00
configs
…
debug
mm/init: Add 'rodata=off' boot cmdline parameter to disable read-only kernel mappings
2016-02-22 08:51:37 +01:00
events
x86: remove more uaccess_32.h complexity
2016-05-22 17:21:27 -07:00
gcov
gcov: use within_module() helper.
2015-12-04 22:46:25 +01:00
irq
radix-tree: introduce radix_tree_empty
2016-05-20 17:58:30 -07:00
livepatch
Merge branches 'for-4.7/core', 'for-4.7/livepatching-doc' and 'for-4.7/livepatching-ppc64' into for-linus
2016-05-17 12:06:35 +02:00
locking
Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2016-05-16 14:47:16 -07:00
power
PM / Hibernate: Call flush_icache_range() on pages restored in-place
2016-04-28 13:35:48 +01:00
printk
printk/nmi: flush NMI messages on the system panic
2016-05-20 17:58:30 -07:00
rcu
debugobjects: insulate non-fixup logic related to static obj from fixup callbacks
2016-05-19 19:12:14 -07:00
sched
Power management material for v4.7-rc1
2016-05-16 19:17:22 -07:00
time
debugobjects: insulate non-fixup logic related to static obj from fixup callbacks
2016-05-19 19:12:14 -07:00
trace
Three more changes.
2016-05-22 19:40:39 -07:00
.gitignore
certs: add .gitignore to stop git nagging about x509_certificate_list
2015-10-21 15:18:35 +01:00
acct.c
…
async.c
async: export current_is_async()
2015-11-19 17:51:48 +01:00
audit_fsnotify.c
wrappers for ->i_mutex access
2016-01-22 18:04:28 -05:00
audit_tree.c
audit: cleanup prune_tree_thread
2016-04-04 09:46:47 -04:00
audit_watch.c
don't bother with ->d_inode->i_sb - it's always equal to ->d_sb
2016-04-10 17:11:51 -04:00
audit.c
Merge branch 'stable-4.7' of git://git.infradead.org/users/pcmoore/audit
2016-05-18 18:46:55 -07:00
audit.h
security: Make inode argument of inode_getsecid non-const
2015-12-24 11:09:39 -05:00
auditfilter.c
audit: Fix typo in comment
2016-02-08 11:25:39 -05:00
auditsc.c
Merge branch 'stable-4.7' of git://git.infradead.org/users/pcmoore/audit
2016-05-18 18:46:55 -07:00
backtracetest.c
…
bounds.c
…
capability.c
…
cgroup_freezer.c
cgroup: kill cgrp_ss_priv[CGROUP_CANFORK_COUNT] and friends
2015-12-03 10:24:08 -05:00
cgroup_pids.c
cgroup_pids: fix a typo.
2015-12-14 14:54:37 -05:00
cgroup.c
cgroup: fix compile warning
2016-05-12 11:05:27 -04:00
compat.c
…
configs.c
…
context_tracking.c
context_tracking: Switch to new static_branch API
2015-11-24 09:56:43 +01:00
cpu_pm.c
kernel/cpu_pm: fix cpu_cluster_pm_exit comment
2015-09-03 02:42:20 +02:00
cpu.c
sched/hotplug: Make activate() the last hotplug step
2016-05-06 14:58:25 +02:00
cpuset.c
cpuset: use static key better and convert to new API
2016-05-19 19:12:14 -07:00
crash_dump.c
…
cred.c
kmemcg: account certain kmem allocations to memcg
2016-01-14 16:00:49 -08:00
delayacct.c
kmemcg: account certain kmem allocations to memcg
2016-01-14 16:00:49 -08:00
dma.c
…
elfcore.c
…
exec_domain.c
…
exit.c
wait: allow sys_waitid() to accept __WNOTHREAD/__WCLONE/__WALL
2016-05-23 17:04:14 -07:00
extable.c
kernel/extable.c: remove duplicated include
2015-09-10 13:29:01 -07:00
fork.c
mm, fork: make dup_mmap wait for mmap_sem for write killable
2016-05-23 17:04:14 -07:00
freezer.c
…
futex_compat.c
ptrace: use fsuid, fsgid, effective creds for fs access checks
2016-01-20 17:09:18 -08:00
futex.c
x86: remove more uaccess_32.h complexity
2016-05-22 17:21:27 -07:00
groups.c
…
hung_task.c
kernel/hung_task.c: use timeout diff when timeout is updated
2016-03-22 15:36:02 -07:00
irq_work.c
treewide: Remove old email address
2015-11-23 09:44:58 +01:00
jump_label.c
treewide: Remove old email address
2015-11-23 09:44:58 +01:00
kallsyms.c
kallsyms: add support for relative offsets in kallsyms address table
2016-03-15 16:55:16 -07:00
kcmp.c
ptrace: use fsuid, fsgid, effective creds for fs access checks
2016-01-20 17:09:18 -08:00
Kconfig.freezer
…
Kconfig.hz
…
Kconfig.locks
…
Kconfig.preempt
…
kcov.c
kcov: don't profile branches in kcov
2016-04-28 19:34:04 -07:00
kexec_core.c
s390/kexec: consolidate crash_map/unmap_reserved_pages() and arch_kexec_protect(unprotect)_crashkres()
2016-05-23 17:04:14 -07:00
kexec_file.c
kexec: introduce a protection mechanism for the crashkernel reserved memory
2016-05-23 17:04:14 -07:00
kexec_internal.h
kexec: move some memembers and definitions within the scope of CONFIG_KEXEC_FILE
2016-01-20 17:09:18 -08:00
kexec.c
s390/kexec: consolidate crash_map/unmap_reserved_pages() and arch_kexec_protect(unprotect)_crashkres()
2016-05-23 17:04:14 -07:00
kmod.c
kmod: don't run async usermode helper as a child of kworker thread
2015-10-23 17:55:10 +09:00
kprobes.c
…
ksysfs.c
rcu: Remove TINY_RCU bloat from pointless boot parameters
2015-12-07 16:59:37 -08:00
kthread.c
kernel/kthread.c:kthread_create_on_node(): clarify documentation
2015-09-04 16:54:41 -07:00
latencytop.c
sched/debug: Make schedstats a runtime tunable that is disabled by default
2016-02-09 11:54:23 +01:00
Makefile
ELF/MIPS build fix
2016-05-23 17:04:14 -07:00
membarrier.c
sys_membarrier(): system-wide memory barrier (generic, x86)
2015-09-11 15:21:34 -07:00
memremap.c
memremap: add arch specific hook for MEMREMAP_WB mappings
2016-04-04 10:26:41 +02:00
module_signing.c
KEYS: Move the point of trust determination to __key_link()
2016-04-11 22:43:43 +01:00
module-internal.h
…
module.c
module: preserve Elf information for livepatch modules
2016-04-01 15:00:10 +02:00
notifier.c
Merge branch 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2015-09-01 08:40:25 -07:00
nsproxy.c
cgroup: introduce cgroup namespaces
2016-02-16 13:04:58 -05:00
padata.c
kernel/padata.c: hide unused functions
2016-05-19 19:12:14 -07:00
panic.c
printk/nmi: flush NMI messages on the system panic
2016-05-20 17:58:30 -07:00
params.c
Nothing exciting, minor tweaks and cleanups.
2015-11-09 15:53:39 -08:00
pid_namespace.c
…
pid.c
Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2016-01-31 15:44:04 -08:00
profile.c
profile: hide unused functions when !CONFIG_PROC_FS
2016-03-22 15:36:02 -07:00
ptrace.c
ptrace: change __ptrace_unlink() to clear ->ptrace under ->siglock
2016-03-22 15:36:02 -07:00
range.c
…
reboot.c
kexec: split kexec_load syscall from kexec core code
2015-09-10 13:29:01 -07:00
relay.c
wrappers for ->i_mutex access
2016-01-22 18:04:28 -05:00
resource.c
/proc/iomem: only expose physical resource addresses to privileged users
2016-04-14 12:56:09 -07:00
seccomp.c
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
2016-05-19 10:02:26 -07:00
signal.c
kernel/signal.c: convert printk(KERN_<LEVEL> ...) to pr_<level>(...)
2016-05-23 17:04:14 -07:00
smp.c
Merge branch 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2016-03-15 13:50:29 -07:00
smpboot.c
cpu/hotplug: Unpark smpboot threads from the state machine
2016-03-01 20:36:56 +01:00
smpboot.h
cpu/hotplug: Create hotplug threads
2016-03-01 20:36:56 +01:00
softirq.c
arch, ftrace: for KASAN put hard/soft IRQ entries into separate sections
2016-03-25 16:37:42 -07:00
stacktrace.c
…
stop_machine.c
kernel/stop_machine.c: remove CONFIG_SMP dependencies
2016-01-16 11:17:24 -08:00
sys_ni.c
vfs: add copy_file_range syscall and vfs helper
2015-12-01 14:00:53 -05:00
sys.c
timer: convert timer_slack_ns from unsigned long to u64
2016-03-17 15:09:34 -07:00
sysctl_binary.c
kernel/sysctl_binary.c: use generic UUID library
2016-05-20 17:58:30 -07:00
sysctl.c
mm: /proc/sys/vm/stat_refresh to force vmstat update
2016-05-19 19:12:14 -07:00
task_work.c
task_work: remove fifo ordering guarantee
2015-09-05 13:46:58 -07:00
taskstats.c
taskstats: use the libnl API to align nlattr on 64-bit
2016-04-23 20:13:25 -04:00
test_kprobes.c
…
torture.c
rcutorture: Dump trace buffer upon shutdown
2016-04-21 13:47:04 -07:00
tracepoint.c
kernel/...: convert pr_warning to pr_warn
2016-03-22 15:36:02 -07:00
tsacct.c
time, acct: Drop irq save & restore from __acct_update_integrals()
2016-02-29 09:53:09 +01:00
uid16.c
…
up.c
…
user_namespace.c
kernel/*: switch to memdup_user_nul()
2016-01-04 10:27:55 -05:00
user-return-notifier.c
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user.c
…
utsname_sysctl.c
…
utsname.c
…
watchdog.c
watchdog: don't run proc_watchdog_update if new value is same as old
2016-03-17 15:09:34 -07:00
workqueue_internal.h
sched/core: Get rid of 'cpu' argument in wq_worker_sleeping()
2016-03-02 10:28:47 -05:00
workqueue.c
debugobjects: insulate non-fixup logic related to static obj from fixup callbacks
2016-05-19 19:12:14 -07:00