David Rientjes
fb794bcbb4
mm, oom: remove unnecessary exit_state check ...
The oom killer scans each process and determines whether it is eligible
for oom kill or whether the oom killer should abort because of
concurrent memory freeing. It will abort when an eligible process is
found to have TIF_MEMDIE set, meaning it has already been oom killed and
we're waiting for it to exit.
Processes with task->mm == NULL should not be considered because they
are either kthreads or have already detached their memory and killing
them would not lead to memory freeing. That memory is only freed after
exit_mm() has returned, however, and not when task->mm is first set to
NULL.
Clear TIF_MEMDIE after exit_mm()'s mmput() so that an oom killed process
is no longer considered for oom kill, but only until exit_mm() has
returned. This was fragile in the past because it relied on
exit_notify() to be reached before no longer considering TIF_MEMDIE
processes.
Signed-off-by: David Rientjes <rientjes@google.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-06 18:01:21 -07:00
net: filter: split 'struct sk_filter' into socket and bpf parts
2014-08-02 15:03:58 -07:00
kdb: Use ktime_get_ts()
2014-06-12 16:18:45 +02:00
Linux 3.16-rc7
2014-07-28 10:00:33 +02:00
gcov: add support for GCC 4.9
2014-06-10 15:34:46 -07:00
Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2014-08-05 17:38:45 -07:00
arch, locking: Ciao arch_mutex_cpu_relax()
2014-07-17 12:32:47 +02:00
This pull request has a lot of work done. The main thing is the changes
2014-08-04 11:50:00 -07:00
kernel/printk/printk.c: revert "printk: enable interrupts before calling console_trylock_for_printk()"
2014-07-03 09:21:54 -07:00
Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2014-08-04 15:55:08 -07:00
Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2014-08-04 16:23:30 -07:00
Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2014-08-05 17:46:42 -07:00
Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2014-08-05 17:46:42 -07:00
Ignore generated file kernel/x509_certificate_list
2013-12-10 18:21:34 +00:00
sched: Make task->start_time nanoseconds based
2014-07-23 10:18:05 -07:00
CAPABILITIES: remove undefined caps from all processes
2014-07-24 21:53:47 +10:00
audit: Use struct net not pid_t to remember the network namespce to reply in
2014-03-20 10:10:53 -04:00
inotify: Fix reporting of cookies for inotify events
2014-02-18 11:17:17 +01:00
inotify: Fix reporting of cookies for inotify events
2014-02-18 11:17:17 +01:00
kernel/auditfilter.c: replace count*size kmalloc by kcalloc
2014-08-06 18:01:12 -07:00
auditsc: audit_krule mask accesses need bounds checking
2014-06-10 08:44:40 -07:00
kernel/backtracetest.c: replace no level printk by pr_info()
2014-06-04 16:54:14 -07:00
mm: do not allocate page->ptl dynamically, if spinlock_t fits to long
2013-12-20 12:25:45 -08:00
CAPABILITIES: remove undefined caps from all processes
2014-07-24 21:53:47 +10:00
Merge branch 'for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
2014-08-04 10:11:28 -07:00
cgroup: rename cgroup_subsys->base_cftypes to ->legacy_cftypes
2014-07-15 11:05:09 -04:00
kernel/compat.c: use sizeof() instead of sizeof
2014-06-04 16:54:19 -07:00
x86/kprobes: Fix build errors and blacklist context_track_user
2014-06-14 09:07:44 +02:00
sched: Rework check_for_tasks()
2014-07-05 11:17:45 +02:00
Merge branch 'for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
2014-08-04 10:11:28 -07:00
delayacct: Remove braindamaged type conversions
2014-07-23 10:18:06 -07:00
switch elf_core_write_extra_phdrs() to dump_emit()
2013-11-09 00:16:23 -05:00
kernel/exec_domain.c: code clean-up
2014-06-04 16:54:15 -07:00
mm, oom: remove unnecessary exit_state check
2014-08-06 18:01:21 -07:00
asmlinkage: Make main_extable_sort_needed visible
2014-02-13 18:13:22 -08:00
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
2014-08-06 08:06:39 -07:00
libata, freezer: avoid block device removal while system is frozen
2013-12-19 13:50:32 -05:00
futex: Simplify futex_lock_pi_atomic() and make it more robust
2014-06-21 22:26:24 +02:00
compat: Get rid of (get|put)_compat_time(val|spec)
2014-02-02 14:09:12 -08:00
kernel/groups.c: remove return value of set_groups
2014-04-03 16:21:05 -07:00
kernel/hung_task.c: convert simple_strtoul to kstrtouint
2014-06-04 16:54:15 -07:00
irq_work: Remove BUG_ON in irq_work_run()
2014-07-05 11:17:26 +02:00
kernel: use macros from compiler.h instead of __attribute__((...))
2014-04-07 16:36:11 -07:00
kernel: remove CONFIG_USE_GENERIC_SMP_HELPERS
2013-11-15 09:32:22 +09:00
locking/rwsem: Add CONFIG_RWSEM_SPIN_ON_OWNER
2014-07-16 14:57:13 +02:00
kexec: fix build error when hugetlbfs is disabled
2014-07-30 20:09:37 -07:00
signals: change wait_for_helper() to use kernel_sigaction()
2014-06-06 16:08:12 -07:00
kprobes: Fix "Failed to find blacklist" probing errors on ia64 and ppc64
2014-07-18 06:23:40 +02:00
kobject: Make support for uevent_helper optional.
2014-04-25 12:00:49 -07:00
kthread_work: wake up worker only when the worker is idle
2014-07-28 14:07:52 -04:00
kernel/latencytop.c: convert seq_printf to seq_puts
2014-06-04 16:54:15 -07:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2014-08-06 09:38:14 -07:00
crypto: fips - only panic on bad/missing crypto mod signatures
2014-07-03 21:38:32 +08:00
kprobes, notifier: Use NOKPROBE_SYMBOL macro in notifier
2014-04-24 10:26:39 +02:00
padata: Fix wrong usage of rcu_dereference()
2013-12-05 21:28:42 +08:00
kernel/panic.c: add "crash_kexec_post_notifiers" option for kdump after panic_notifers
2014-06-06 16:08:12 -07:00
param: hand arguments after -- straight to init
2014-04-28 11:48:34 +09:30
pid_namespace: pidns_get() should check task_active_pid_ns() != NULL
2014-04-02 16:20:21 -07:00
kernel/profile.c: use static const char instead of static char
2014-06-06 16:08:13 -07:00
sched: Remove proliferation of wait_on_bit() action functions
2014-07-16 15:10:39 +02:00
kernel/reboot.c: convert simple_strtoul to kstrtoint
2014-06-04 16:54:15 -07:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2014-04-12 14:49:50 -07:00
kernel/res_counter.c: replace simple_strtoull by kstrtoull
2014-06-04 16:54:15 -07:00
resources: Clarify sanity check message
2014-05-23 10:47:21 -06:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2014-08-06 09:38:14 -07:00
signal: Explain local_irq_save() call
2014-07-09 09:14:33 -07:00
Linux 3.16-rc5
2014-07-16 15:10:07 +02:00
Merge branch 'rcu/next' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu
2014-05-22 11:36:10 +02:00
kernel/stop_machine.c: kernel-doc warning fix
2014-06-04 16:54:15 -07:00
sched: move no_new_privs into new atomic flags
2014-07-18 12:13:38 -07:00
seccomp: add "seccomp" syscall
2014-07-18 12:13:37 -07:00
mm, hugetlb: remove hugetlb_zero and hugetlb_infinity
2014-08-06 18:01:19 -07:00
ipv6: Allow accepting RA from local IP addresses.
2014-07-01 12:16:24 -07:00
KEYS: correct alignment of system_certificate_list content in assembly file
2013-12-10 18:25:28 +00:00
KEYS: validate certificate trust only with builtin keys
2014-07-17 09:35:17 -04:00
genetlink: only pass array to genl_register_family_with_ops()
2013-11-19 16:39:05 -05:00
torture: Avoid format string leak to thead name
2014-07-07 10:12:56 -07:00
tracing: syscall_regfunc() should not skip kernel threads
2014-06-21 00:15:26 -04:00
sched: Make task->start_time nanoseconds based
2014-07-23 10:18:05 -07:00
smp: Rename __smp_call_function_single() to smp_call_function_single_async()
2014-02-24 14:47:15 -08:00
kernel/user.c: drop unused field 'files' from user_struct
2014-06-04 16:54:16 -07:00
kernel/user_namespace.c: kernel-doc/checkpatch fixes
2014-06-06 16:08:13 -07:00
sysctl: convert use of typedef ctl_table to struct ctl_table
2014-06-06 16:08:16 -07:00
kernel/watchdog.c: convert printk/pr_warning to pr_foo()
2014-08-06 18:01:13 -07:00
Merge branch 'for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu
2014-08-04 10:09:27 -07:00
workqueue: rename manager_mutex to attach_mutex
2014-05-20 10:59:32 -04:00
fb794bcbb4