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90f31d0ea88880f780574f3d0bb1a227c4c66ca3
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Konstantin Khlebnikov 90f31d0ea8 mm: rcu-protected get_mm_exe_file() 
This patch removes mm->mmap_sem from mm->exe_file read side.
Also it kills dup_mm_exe_file() and moves exe_file duplication into
dup_mmap() where both mmap_sems are locked.

[akpm@linux-foundation.org: fix comment typo]
Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Cc: Davidlohr Bueso <dbueso@suse.de>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: "Paul E. McKenney" <paulmck@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-04-17 09:04:07 -04:00
..
bpf
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2015-04-15 09:00:47 -07:00
configs
…
debug
debug: prevent entering debug mode on panic/exception.
2015-02-19 12:39:03 -06:00
events
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2015-04-15 09:00:47 -07:00
gcov
kbuild,gcov: simplify kernel/gcov/Makefile more
2015-01-09 17:25:44 +01:00
irq
Merge tag 'irqchip-core-4.1-3' of git://git.infradead.org/users/jcooper/linux into irq/core
2015-04-11 11:17:28 +02:00
livepatch
Merge branch 'for-4.1/core-noarch' into for-linus
2015-04-13 23:57:20 +02:00
locking
Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2015-04-13 10:27:28 -07:00
power
Merge back earlier suspend/hibernate material for v4.1.
2015-04-10 12:01:59 +02:00
printk
Merge branch 'iocb' into for-next
2015-04-11 22:24:41 -04:00
rcu
Merge branches 'doc.2015.02.26a', 'earlycb.2015.03.03a', 'fixes.2015.03.03a', 'gpexp.2015.02.26a', 'hotplug.2015.03.20a', 'sysidle.2015.02.26b' and 'tiny.2015.02.26a' into HEAD
2015-03-20 08:31:01 -07:00
sched
Merge branch 'timers-nohz-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2015-04-14 13:58:48 -07:00
time
timers/PM: Drop unnecessary braces from tick_freeze()
2015-04-03 15:15:52 +02:00
trace
tracing: remove use of seq_printf return value
2015-04-15 16:35:25 -07:00
.gitignore
…
acct.c
acct: check FMODE_CAN_WRITE
2015-04-11 22:27:55 -04:00
async.c
kernel/async.c: switch to pr_foo()
2014-10-09 22:26:04 -04:00
audit_tree.c
fsnotify: unify inode and mount marks handling
2014-12-13 12:42:53 -08:00
audit_watch.c
audit: invalid op= values for rules
2014-09-23 16:37:53 -04:00
audit.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2014-12-30 10:45:47 -08:00
audit.h
audit: replace getname()/putname() hacks with reference counters
2015-01-23 00:23:58 -05:00
auditfilter.c
Merge branch 'upstream' of git://git.infradead.org/users/pcmoore/audit
2015-02-11 20:07:47 -08:00
auditsc.c
Merge branch 'getname2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-02-17 15:27:47 -08:00
backtracetest.c
…
bounds.c
…
capability.c
kernel: conditionally support non-root users, groups and capabilities
2015-04-15 16:35:22 -07:00
cgroup_freezer.c
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cgroup.c
cgroup: remove use of seq_printf return value
2015-04-15 16:35:25 -07:00
compat.c
all arches, signal: move restart_block to struct task_struct
2015-02-12 18:54:12 -08:00
configs.c
…
context_tracking.c
context_tracking: Export context_tracking_user_enter/exit
2015-03-09 15:43:00 +01:00
cpu_pm.c
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cpu.c
Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2015-04-14 13:36:04 -07:00
cpuset.c
kernel, cpuset: remove exception for __GFP_THISNODE
2015-04-14 16:49:03 -07:00
crash_dump.c
crash_dump: Make is_kdump_kernel() accessible from modules
2014-08-25 15:42:19 -07:00
cred.c
kernel: conditionally support non-root users, groups and capabilities
2015-04-15 16:35:22 -07:00
delayacct.c
…
dma.c
…
elfcore.c
…
exec_domain.c
Remove rest of exec domains.
2015-04-12 21:03:31 +02:00
exit.c
Remove execution domain support
2015-04-12 20:58:24 +02:00
extable.c
ftrace/x86/extable: Add is_ftrace_trampoline() function
2014-11-19 15:25:26 -05:00
fork.c
mm: rcu-protected get_mm_exe_file()
2015-04-17 09:04:07 -04:00
freezer.c
freezer: remove obsolete comments in __thaw_task()
2014-10-21 23:44:20 +02:00
futex_compat.c
…
futex.c
Merge tag 'v4.0-rc1' into locking/core, to refresh the tree before merging new changes
2015-02-24 08:41:07 +01:00
groups.c
kernel: conditionally support non-root users, groups and capabilities
2015-04-15 16:35:22 -07:00
hung_task.c
kernel/hung_task.c: change hung_task.c to use for_each_process_thread()
2015-04-15 16:35:22 -07:00
irq_work.c
percpu: Convert remaining __get_cpu_var uses in 3.18-rcX
2014-10-29 11:18:18 -04:00
jump_label.c
…
kallsyms.c
kernel/kallsyms.c: use __seq_open_private()
2014-10-14 02:18:16 +02:00
kcmp.c
kcmp: fix standard comparison bug
2014-09-10 15:42:12 -07:00
Kconfig.freezer
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Kconfig.hz
…
Kconfig.locks
locking/mcs: Better differentiate between MCS variants
2015-01-14 15:07:32 +01:00
Kconfig.preempt
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kexec.c
kexec: simplify conditional
2015-02-17 14:34:51 -08:00
kmod.c
usermodehelper: kill the kmod_thread_locker logic
2014-12-10 17:41:17 -08:00
kprobes.c
kprobes: makes kprobes/enabled works correctly for optimized kprobes.
2015-02-13 21:21:42 -08:00
ksysfs.c
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kthread.c
kernel/kthread.c: partial revert of 81c98869fa ("kthread: ensure locality of task_struct allocations")
2014-10-09 22:25:51 -04:00
latencytop.c
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Makefile
kernel: conditionally support non-root users, groups and capabilities
2015-04-15 16:35:22 -07:00
module_signing.c
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module-internal.h
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module.c
Merge tag 'trace-v4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
2015-04-14 10:49:03 -07:00
notifier.c
rcu: Make SRCU optional by using CONFIG_SRCU
2015-01-06 11:04:29 -08:00
nsproxy.c
bury struct proc_ns in fs/proc
2014-12-04 14:34:54 -05:00
padata.c
padata: use %*pb[l] to print bitmaps including cpumasks and nodemasks
2015-02-13 21:21:38 -08:00
panic.c
livepatch: kernel: add TAINT_LIVEPATCH
2014-12-22 15:40:48 +01:00
params.c
param: fix uninitialized read with CONFIG_DEBUG_LOCK_ALLOC
2015-01-20 11:38:31 +10:30
pid_namespace.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2014-12-16 15:53:03 -08:00
pid.c
fork: report pid reservation failure properly
2015-04-17 09:04:06 -04:00
profile.c
profile: use %*pb[l] to print bitmaps including cpumasks and nodemasks
2015-02-13 21:21:38 -08:00
ptrace.c
ptrace: ptrace_detach() can no longer race with SIGKILL
2015-04-17 09:04:06 -04:00
range.c
kernel: avoid overflow in cmp_range
2015-01-17 10:02:23 +13:00
reboot.c
kernel/reboot.c: add orderly_reboot for graceful reboot
2015-04-15 16:35:23 -07:00
relay.c
…
resource.c
kernel/resource.c: remove deprecated __check_region() and friends
2015-04-15 16:35:22 -07:00
seccomp.c
seccomp: cap SECCOMP_RET_ERRNO data to MAX_ERRNO
2015-02-17 14:34:55 -08:00
signal.c
signal: remove warning about using SI_TKILL in rt_[tg]sigqueueinfo
2015-04-17 09:04:06 -04:00
smp.c
Merge branch 'for-3.18-consistent-ops' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu
2014-10-15 07:48:18 +02:00
smpboot.c
smpboot: Add common code for notification from dying CPU
2015-03-11 13:20:25 -07:00
smpboot.h
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softirq.c
Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2015-02-09 15:24:03 -08:00
stacktrace.c
stacktrace: introduce snprint_stack_trace for buffer output
2014-12-13 12:42:48 -08:00
stop_machine.c
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sys_ni.c
kernel: conditionally support non-root users, groups and capabilities
2015-04-15 16:35:22 -07:00
sys.c
kernel: conditionally support non-root users, groups and capabilities
2015-04-15 16:35:22 -07:00
sysctl_binary.c
kernel: add panic_on_warn
2014-12-10 17:41:10 -08:00
sysctl.c
kernel/sysctl.c: threads-max observe limits
2015-04-17 09:04:07 -04:00
system_certificates.S
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system_keyring.c
…
task_work.c
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taskstats.c
netlink: make nlmsg_end() and genlmsg_end() void
2015-01-18 01:03:45 -05:00
test_kprobes.c
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torture.c
torture: Address race in module cleanup
2014-09-16 13:41:06 -07:00
tracepoint.c
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tsacct.c
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uid16.c
groups: Consolidate the setgroups permission checks
2014-12-05 17:19:27 -06:00
up.c
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user_namespace.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
2014-12-17 12:31:40 -08:00
user-return-notifier.c
scheduler: Replace __get_cpu_var with this_cpu_ptr
2014-08-26 13:45:45 -04:00
user.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
2014-12-17 12:31:40 -08:00
utsname_sysctl.c
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utsname.c
copy address of proc_ns_ops into ns_common
2014-12-04 14:34:47 -05:00
watchdog.c
Merge branch 'akpm' (patches from Andrew)
2015-04-14 16:49:17 -07:00
workqueue_internal.h
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workqueue.c
workqueue: Reorder sysfs code
2015-04-06 11:16:04 -04:00