Steven Rostedt (Red Hat) cf6ab6d914 tracing: Add ref count to tracer for when they are being read by pipe ...

When one of the trace pipe files are being read (by either the trace_pipe
or trace_pipe_raw), do not allow the current_trace to change. By adding
a ref count that is incremented when the pipe files are opened, will
prevent the current_trace from being changed.

This will allow for the removal of the global trace_types_lock from
reading the pipe buffers (which is currently a bottle neck).

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

2014-12-22 15:39:40 -05:00

..

bpf

bpf: verifier: add checks for BPF_ABS | BPF_IND instructions

2014-12-05 21:47:32 -08:00

configs

x86: Add "make tinyconfig" to configure the tiniest possible kernel

2014-08-08 16:30:24 -07:00

debug

kdb: replace strnicmp with strncasecmp

2014-10-14 02:18:25 +02:00

events

Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2014-12-19 13:15:24 -08:00

gcov

gcov: enable GCOV_PROFILE_ALL from ARCH Kconfigs

2014-12-13 12:42:51 -08:00

irq

genirq: Prevent proc race against freeing of irq descriptors

2014-12-13 13:33:07 +01:00

locking

locking/mutex: Don't assume TASK_RUNNING

2014-10-28 10:55:08 +01:00

power

PM: Eliminate CONFIG_PM_RUNTIME

2014-12-19 22:55:06 +01:00

printk

Merge tag 'trace-seq-buf-3.19-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

2014-12-13 14:04:41 -08:00

rcu

Merge branches 'torture.2014.11.03a', 'cpu.2014.11.03a', 'doc.2014.11.13a', 'fixes.2014.11.13a', 'signal.2014.10.29a' and 'rt.2014.10.29a' into HEAD

2014-11-13 10:39:04 -08:00

sched

sched_show_task: fix unsafe usage of ->real_parent

2014-12-10 17:41:09 -08:00

time

Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2014-12-19 13:29:20 -08:00

trace

tracing: Add ref count to tracer for when they are being read by pipe

2014-12-22 15:39:40 -05:00

.gitignore

…

acct.c

acct: eliminate compile warning

2014-10-09 22:26:04 -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 branch 'upstream' of git://git.infradead.org/users/pcmoore/audit

2014-12-13 13:41:28 -08:00

audit.h

audit: reduce scope of audit_log_fcaps

2014-09-23 16:37:51 -04:00

auditfilter.c

Merge git://git.infradead.org/users/eparis/audit

2014-10-19 16:25:56 -07:00

auditsc.c

new helper: audit_file()

2014-11-19 13:01:26 -05:00

backtracetest.c

kernel/backtracetest.c: replace no level printk by pr_info()

2014-06-04 16:54:14 -07:00

bounds.c

page-cgroup: get rid of NR_PCG_FLAGS

2014-08-08 15:57:18 -07:00

capability.c

CAPABILITIES: remove undefined caps from all processes

2014-07-24 21:53:47 +10:00

cgroup_freezer.c

cgroup: rename cgroup_subsys->base_cftypes to ->legacy_cftypes

2014-07-15 11:05:09 -04:00

cgroup.c

cgroup: implement cgroup_get_e_css()

2014-11-18 02:49:52 -05:00

compat.c

compat: nanosleep: Clarify error handling

2014-09-06 12:58:18 +02:00

configs.c

…

context_tracking.c

sched: stop the unbound recursion in preempt_schedule_context()

2014-10-28 10:46:05 +01:00

cpu_pm.c

…

cpu.c

cpu: Avoid puts_pending overflow

2014-11-03 19:21:01 -08:00

cpuset.c

Merge branch 'for-3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup

2014-12-11 18:57:19 -08:00

crash_dump.c

crash_dump: Make is_kdump_kernel() accessible from modules

2014-08-25 15:42:19 -07:00

cred.c

…

delayacct.c

delayacct: Remove braindamaged type conversions

2014-07-23 10:18:06 -07:00

dma.c

…

elfcore.c

…

exec_domain.c

kernel/exec_domain.c: code clean-up

2014-06-04 16:54:15 -07:00

exit.c

Merge tag 'tty-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

2014-12-14 15:23:32 -08:00

extable.c

ftrace/x86/extable: Add is_ftrace_trampoline() function

2014-11-19 15:25:26 -05:00

fork.c

mm: use new helper functions around the i_mmap_mutex

2014-12-13 12:42:45 -08:00

freezer.c

freezer: remove obsolete comments in __thaw_task()

2014-10-21 23:44:20 +02:00

futex_compat.c

…

futex.c

futex: Fix a race condition between REQUEUE_PI and task death

2014-10-26 16:16:18 +01:00

groups.c

userns: Don't allow setgroups until a gid mapping has been setablished

2014-12-09 16:58:40 -06:00

hung_task.c

kernel/hung_task.c: convert simple_strtoul to kstrtouint

2014-06-04 16:54:15 -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

…

Kconfig.hz

…

Kconfig.locks

locking/rwsem: Add CONFIG_RWSEM_SPIN_ON_OWNER

2014-07-16 14:57:13 +02:00

Kconfig.preempt

…

kexec.c

kexec: remove unnecessary KERN_ERR from kexec.c

2014-12-13 12:42:51 -08:00

kmod.c

usermodehelper: kill the kmod_thread_locker logic

2014-12-10 17:41:17 -08:00

kprobes.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

2014-12-11 17:30:55 -08:00

ksysfs.c

kobject: Make support for uevent_helper optional.

2014-04-25 12:00:49 -07:00

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

kernel/latencytop.c: convert seq_printf to seq_puts

2014-06-04 16:54:15 -07:00

Makefile

kernel: res_counter: remove the unused API

2014-12-10 17:41:04 -08:00

module_signing.c

…

module-internal.h

…

module.c

Merge tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux

2014-12-18 20:55:41 -08:00

notifier.c

kprobes, notifier: Use NOKPROBE_SYMBOL macro in notifier

2014-04-24 10:26:39 +02:00

nsproxy.c

bury struct proc_ns in fs/proc

2014-12-04 14:34:54 -05:00

padata.c

…

panic.c

kernel: add panic_on_warn

2014-12-10 17:41:10 -08:00

params.c

param: do not set store func without write perm

2014-12-18 12:38:51 +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

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2014-12-16 15:53:03 -08:00

profile.c

kernel/profile.c: use static const char instead of static char

2014-06-06 16:08:13 -07:00

ptrace.c

exit: ptrace: shift "reap dead" code from exit_ptrace() to forget_original_parent()

2014-12-10 17:41:10 -08:00

range.c

…

reboot.c

kernel: add support for kernel restart handler call chain

2014-09-26 00:00:06 -07:00

relay.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2014-04-12 14:49:50 -07:00

resource.c

x86: optimize resource lookups for ioremap

2014-10-14 02:18:22 +02:00

seccomp.c

Merge branch 'x86-seccomp-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2014-10-14 02:27:06 +02:00

signal.c

Merge branch 'x86-mpx-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2014-12-10 09:34:43 -08:00

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

sched, smp: Correctly deal with nested sleeps

2014-10-28 10:56:24 +01:00

smpboot.h

…

softirq.c

rcu: Remove "cpu" argument to rcu_note_context_switch()

2014-11-03 19:20:34 -08:00

stacktrace.c

stacktrace: introduce snprint_stack_trace for buffer output

2014-12-13 12:42:48 -08:00

stop_machine.c

kernel/stop_machine.c: kernel-doc warning fix

2014-06-04 16:54:15 -07:00

sys_ni.c

syscalls: implement execveat() system call

2014-12-13 12:42:51 -08:00

sys.c

x86, mpx: On-demand kernel allocation of bounds tables

2014-11-18 00:58:53 +01:00

sysctl_binary.c

kernel: add panic_on_warn

2014-12-10 17:41:10 -08:00

sysctl.c

Merge tag 'trace-3.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

2014-12-16 12:53:59 -08:00

system_certificates.S

…

system_keyring.c

KEYS: validate certificate trust only with builtin keys

2014-07-17 09:35:17 -04:00

task_work.c

…

taskstats.c

kill f_dentry uses

2014-11-19 13:01:25 -05:00

test_kprobes.c

kernel/test_kprobes.c: use current logging functions

2014-08-08 15:57:18 -07:00

torture.c

torture: Address race in module cleanup

2014-09-16 13:41:06 -07:00

tracepoint.c

tracing: syscall_regfunc() should not skip kernel threads

2014-06-21 00:15:26 -04:00

tsacct.c

sched: Make task->start_time nanoseconds based

2014-07-23 10:18:05 -07:00

uid16.c

groups: Consolidate the setgroups permission checks

2014-12-05 17:19:27 -06:00

up.c

…

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

sysctl: convert use of typedef ctl_table to struct ctl_table

2014-06-06 16:08:16 -07:00

utsname.c

copy address of proc_ns_ops into ns_common

2014-12-04 14:34:47 -05:00

watchdog.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

workqueue_internal.h

workqueue: rename manager_mutex to attach_mutex

2014-05-20 10:59:32 -04:00

workqueue.c

workqueue: allow rescuer thread to do more work.

2014-12-08 12:39:16 -05:00