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Rusty Russell 907b29eb41 param: locking for kernel parameters 
There may be cases (most obviously, sysfs-writable charp parameters) where
a module needs to prevent sysfs access to parameters.

Rather than express this in terms of a big lock, the functions are
expressed in terms of what they protect against.  This is clearer, esp.
if the implementation changes to a module-level or even param-level lock.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Tested-by: Phil Carmody <ext-phil.2.carmody@nokia.com>
2010-08-11 23:04:20 +09:30
..
debug
Merge branch 'timers-timekeeping-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2010-08-06 13:18:29 -07:00
gcov
…
irq
irq: Add new IRQ flag IRQF_NO_SUSPEND
2010-07-29 13:24:57 +02:00
power
Merge branch 'for-2.6.36' of git://git.kernel.dk/linux-2.6-block
2010-08-10 15:22:42 -07:00
time
Merge branch 'timers-timekeeping-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2010-08-06 13:18:29 -07:00
trace
Merge branch 'for-2.6.36' of git://git.kernel.dk/linux-2.6-block
2010-08-10 15:22:42 -07:00
.gitignore
…
acct.c
pass a struct path to vfs_statfs
2010-08-09 16:48:42 -04:00
async.c
async: use workqueue for worker pool
2010-07-14 11:29:46 +02:00
audit_tree.c
fanotify: use both marks when possible
2010-07-28 10:18:55 -04:00
audit_watch.c
fanotify: use both marks when possible
2010-07-28 10:18:55 -04:00
audit.c
Merge branch 'for-linus' of git://git.infradead.org/users/eparis/notify
2010-08-10 11:39:13 -07:00
audit.h
Audit: split audit watch Kconfig
2010-07-28 09:58:19 -04:00
auditfilter.c
audit: do not get and put just to free a watch
2010-07-28 09:58:17 -04:00
auditsc.c
fsnotify: rename fsnotify_mark_entry to just fsnotify_mark
2010-07-28 09:58:53 -04:00
backtracetest.c
…
bounds.c
kbuild: move bounds.h to include/generated
2009-12-12 13:08:14 +01:00
capability.c
sched: Remove remaining USER_SCHED code
2010-04-02 20:12:00 +02:00
cgroup_freezer.c
Freezer / cgroup freezer: Update stale locking comments
2010-05-10 23:18:47 +02:00
cgroup.c
cgroupfs: create /sys/fs/cgroup to mount cgroupfs on
2010-08-05 13:53:35 -07:00
compat.c
rlimits: switch more rlimit syscalls to do_prlimit
2010-07-16 09:48:48 +02:00
configs.c
…
cpu.c
sched: adjust when cpu_active and cpuset configurations are updated during cpu on/offlining
2010-06-08 21:40:36 +02:00
cpuset.c
Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2010-08-06 09:39:22 -07:00
cred.c
CRED: Fix get_task_cred() and task_state() to not resurrect dead credentials
2010-07-29 15:16:17 -07:00
delayacct.c
…
dma.c
…
early_res.c
kmemleak: Add support for NO_BOOTMEM configurations
2010-07-19 11:54:15 +01:00
elfcore.c
elf coredump: add extended numbering support
2010-03-06 11:26:46 -08:00
exec_domain.c
sys_personality: remove the bogus checks in sys_personality()->__set_personality() path
2010-08-09 20:45:05 -07:00
exit.c
proc: turn signal_struct->count into "int nr_threads"
2010-05-27 09:12:47 -07:00
extable.c
…
fork.c
oom: badness heuristic rewrite
2010-08-09 20:45:02 -07:00
freezer.c
…
futex_compat.c
futex: Protect pid lookup in compat code with RCU
2009-12-09 14:22:14 +01:00
futex.c
futex: futex_find_get_task remove credentails check
2010-06-30 15:43:44 -07:00
groups.c
security: remove dead hook task_setgroups
2010-04-12 12:19:18 +10:00
hrtimer.c
Merge branch 'timers-timekeeping-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2010-08-06 13:18:29 -07:00
hung_task.c
softlockup: Fix hung_task_check_count sysctl
2009-11-27 06:21:57 +01:00
hw_breakpoint.c
Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2010-08-06 09:30:52 -07:00
itimer.c
itimers: Fix racy writes to cpu_itimer fields
2009-11-18 16:32:12 +01:00
kallsyms.c
kdb: core for kgdb back end (2 of 2)
2010-05-20 21:04:21 -05:00
Kconfig.freezer
…
Kconfig.hz
…
Kconfig.locks
mutex: Better control mutex adaptive spinning config
2009-12-03 11:50:11 +01:00
Kconfig.preempt
…
kexec.c
kexec: fix Oops in crash_shrink_memory()
2010-06-29 15:29:31 -07:00
kfifo.c
kfifo: Don't use integer as NULL pointer
2010-02-16 15:11:08 -08:00
kmod.c
call_usermodehelper: UMH_WAIT_EXEC ignores kernel_thread() failure
2010-05-27 09:12:45 -07:00
kprobes.c
kprobes: Move enable/disable_kprobe() out from debugfs code
2010-05-08 18:08:30 +02:00
ksysfs.c
sysfs: add struct file* to bin_attr callbacks
2010-05-21 09:37:31 -07:00
kthread.c
kthread: implement kthread_data()
2010-06-29 10:07:09 +02:00
latencytop.c
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
lockdep_internals.h
lockdep: No need to disable preemption in debug atomic ops
2010-05-04 05:38:16 +02:00
lockdep_proc.c
lockstat: Make lockstat counting per cpu
2010-04-06 00:15:37 +02:00
lockdep_states.h
…
lockdep.c
sched_clock: Add local_clock() API and improve documentation
2010-06-09 10:34:49 +02:00
Makefile
Merge branch 'for-linus' of git://git.infradead.org/users/eparis/notify
2010-08-10 11:39:13 -07:00
module.c
module: cleanup comments, remove noinline
2010-08-05 12:59:13 +09:30
mutex-debug.c
…
mutex-debug.h
locking: Implement new raw_spinlock
2009-12-14 23:55:32 +01:00
mutex.c
mutex: Fix optimistic spinning vs. BKL
2010-05-19 08:18:44 +02:00
mutex.h
…
notifier.c
sched: Use lockdep-based checking on rcu_dereference()
2010-02-25 10:34:26 +01:00
ns_cgroup.c
…
nsproxy.c
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
padata.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
2010-08-04 15:23:14 -07:00
panic.c
panic: call console_verbose() in panic
2010-05-27 09:12:53 -07:00
params.c
param: locking for kernel parameters
2010-08-11 23:04:20 +09:30
perf_event.c
Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2010-08-06 09:39:22 -07:00
pid_namespace.c
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
pid.c
pids: increase pid_max based on num_possible_cpus
2010-05-27 09:12:51 -07:00
pm_qos_params.c
pm_qos: Get rid of the allocation in pm_qos_add_request()
2010-07-19 02:00:34 +02:00
posix-cpu-timers.c
Merge branch 'writable_limits' of git://decibel.fi.muni.cz/~xslaby/linux
2010-08-10 12:07:51 -07:00
posix-timers.c
posix_timer: Move copy_to_user(created_timer_id) down in timer_create()
2010-07-23 15:08:12 +02:00
printk.c
gcc-4.6: printk: use stable variable to dump kmsg buffer
2010-08-09 20:45:06 -07:00
profile.c
numa: in-kernel profiling: use cpu_to_mem() for per cpu allocations
2010-05-27 09:12:57 -07:00
ptrace.c
ptrace: PTRACE_GETFDPIC: fix the unsafe usage of child->mm
2010-05-27 09:12:44 -07:00
range.c
kernel/range: remove unused definition of ARRAY_SIZE()
2010-08-09 20:45:06 -07:00
rcupdate.c
tree/tiny rcu: Add debug RCU head objects
2010-06-14 16:37:26 -07:00
rcutiny_plugin.h
rcu: slim down rcutiny by removing rcu_scheduler_active and friends
2010-05-10 11:08:34 -07:00
rcutiny.c
tree/tiny rcu: Add debug RCU head objects
2010-06-14 16:37:26 -07:00
rcutorture.c
sched_clock: Add local_clock() API and improve documentation
2010-06-09 10:34:49 +02:00
rcutree_plugin.h
rcu: remove all rcu head initializations, except on_stack initializations
2010-05-11 16:10:47 -07:00
rcutree_trace.c
rcu: reduce the number of spurious RCU_SOFTIRQ invocations
2010-05-10 11:08:35 -07:00
rcutree.c
tree/tiny rcu: Add debug RCU head objects
2010-06-14 16:37:26 -07:00
rcutree.h
rcu: reduce the number of spurious RCU_SOFTIRQ invocations
2010-05-10 11:08:35 -07:00
relay.c
kernel/: convert cpu notifier to return encapsulate errno value
2010-05-27 09:12:48 -07:00
res_counter.c
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
resource.c
resource: shared I/O region support
2010-05-11 12:01:10 -07:00
rtmutex_common.h
…
rtmutex-debug.c
sched: Convert pi_lock to raw_spinlock
2009-12-14 23:55:33 +01:00
rtmutex-debug.h
…
rtmutex-tester.c
…
rtmutex.c
rtmutes: Convert rtmutex.lock to raw_spinlock
2009-12-14 23:55:33 +01:00
rtmutex.h
…
rwsem.c
…
sched_clock.c
sched_clock: Add local_clock() API and improve documentation
2010-06-09 10:34:49 +02:00
sched_cpupri.c
sched: No need for bootmem special cases
2010-07-17 12:06:22 +02:00
sched_cpupri.h
sched: No need for bootmem special cases
2010-07-17 12:06:22 +02:00
sched_debug.c
sched: Use correct macro to display sched_child_runs_first in /proc/sched_debug
2010-07-21 21:46:12 +02:00
sched_fair.c
Merge branch 'linus' into sched/core
2010-07-21 21:45:08 +02:00
sched_features.h
sched: Remove ASYM_GRAN feature
2010-03-11 18:32:53 +01:00
sched_idletask.c
sched: Cure load average vs NO_HZ woes
2010-04-23 11:02:02 +02:00
sched_rt.c
sched: task_tick_rt: Remove the obsolete ->signal != NULL check
2010-06-18 10:46:56 +02:00
sched_stats.h
sched: Remove the obsolete exit_state/signal hacks
2010-06-18 10:46:56 +02:00
sched.c
Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2010-08-06 09:39:22 -07:00
seccomp.c
…
semaphore.c
…
signal.c
CRED: Fix RCU warning due to previous patch fixing __task_cred()'s checks
2010-08-04 11:17:10 -07:00
smp.c
kernel/: convert cpu notifier to return encapsulate errno value
2010-05-27 09:12:48 -07:00
softirq.c
kernel/: fix BUG_ON checks for cpu notifier callbacks direct call
2010-06-04 15:21:45 -07:00
spinlock.c
locking: Cleanup the name space completely
2009-12-14 23:55:33 +01:00
srcu.c
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
stacktrace.c
…
stop_machine.c
stop_machine: struct cpu_stopper, remove alignment padding on 64 bits
2010-08-09 20:45:06 -07:00
sys_ni.c
fanotify: sys_fanotify_mark declartion
2010-07-28 09:58:55 -04:00
sys.c
rlimits: implement prlimit64 syscall
2010-07-16 09:48:48 +02:00
sysctl_binary.c
sysctl: don't use own implementation of hex_to_bin()
2010-05-25 08:07:05 -07:00
sysctl_check.c
ipv4 05/05: add sysctl to accept packets with local source addresses
2009-12-03 12:14:38 -08:00
sysctl.c
Merge branch 'for-linus' of git://git.infradead.org/users/eparis/notify
2010-08-10 11:39:13 -07:00
taskstats.c
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
test_kprobes.c
…
time.c
time: Kill off CONFIG_GENERIC_TIME
2010-07-27 12:40:54 +02:00
timeconst.pl
…
timer.c
kernel/timer.c: fix kernel-doc function parameter warning
2010-08-10 15:33:09 -07:00
tracepoint.c
tracing: Let tracepoints have data passed to tracepoint callbacks
2010-05-14 09:50:34 -04:00
tsacct.c
mm: clean up mm_counter
2010-03-06 11:26:23 -08:00
uid16.c
…
up.c
…
user_namespace.c
user_ns: Introduce user_nsmap_uid and user_ns_map_gid.
2010-06-16 14:55:34 -07:00
user-return-notifier.c
core: Clean up user return notifers use of per_cpu
2009-12-02 10:22:59 +01:00
user.c
sched: Remove a stale comment
2010-05-10 08:48:39 +02:00
utsname_sysctl.c
…
utsname.c
…
wait.c
…
watchdog.c
kernel/watchdog: Initialize 'result'
2010-07-07 08:46:42 +02:00
workqueue_sched.h
workqueue: implement concurrency managed dynamic worker pool
2010-06-29 10:07:14 +02:00
workqueue.c
workqueue: workqueue_cpu_callback() should be cpu_notifier instead of hotcpu_notifier
2010-08-09 11:50:34 +02:00