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Paul E. McKenney c9e71002aa rcupreempt: remove never-migrates assumption from rcu_process_callbacks() 
This patch fixes a potentially invalid access to a per-CPU variable in
rcu_process_callbacks().

This per-CPU access needs to be done in such a way as to guarantee that
the code using it cannot move to some other CPU before all uses of the
value accessed have completed.  Even though this code is currently only
invoked from softirq context, which currrently cannot migrate to some
other CPU, life would be better if this code did not silently make such
an assumption.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-02-29 20:21:13 +01:00
..
irq
genirq: do not leave interupts enabled on free_irq
2008-02-19 10:43:58 +01:00
power
PM: Introduce PM_EVENT_HIBERNATE callback state
2008-02-23 10:40:04 -08:00
time
rcu: add support for dynamic ticks and preempt rcu
2008-02-29 18:46:50 +01:00
.gitignore
Update kernel/.gitignore with new auto-generated files
2008-02-09 23:27:01 -08:00
acct.c
acct: real_parent ppid
2008-01-07 14:55:37 -08:00
audit_tree.c
Introduce path_put()
2008-02-14 21:13:33 -08:00
audit.c
d_path: Make d_path() use a struct path
2008-02-14 21:17:09 -08:00
audit.h
[PATCH] audit: watching subtrees
2007-10-21 02:37:45 -04:00
auditfilter.c
Introduce path_put()
2008-02-14 21:13:33 -08:00
auditsc.c
Audit: use == not = in if statements
2008-02-18 18:46:28 -08:00
backtracetest.c
x86: add a simple backtrace test module
2008-01-30 13:33:08 +01:00
capability.c
Add 64-bit capability support to the kernel
2008-02-05 09:44:20 -08:00
cgroup_debug.c
Task Control Groups: simple task cgroup debug info subsystem
2007-10-19 11:53:36 -07:00
cgroup.c
cgroup: remove dead code in cgroup_get_rootdir()
2008-02-23 17:13:25 -08:00
compat.c
hrtimer: don't modify restart_block->fn in restart functions
2008-02-10 10:48:03 +01:00
configs.c
use simple_read_from_buffer in kernel/
2007-05-09 12:30:49 -07:00
cpu.c
cpu: fix section mismatch warnings for enable_nonboot_cpus
2008-02-08 09:22:41 -08:00
cpuset.c
proc: seqfile convert proc_pid_status to properly handle pid namespaces
2008-02-08 09:22:24 -08:00
delayacct.c
Add scaled time to taskstats based process accounting
2007-10-18 14:37:28 -07:00
dma.c
whitespace fixes: DMA channel allocator
2007-10-18 14:37:24 -07:00
exec_domain.c
whitespace fixes: execution domains
2007-10-18 14:37:26 -07:00
exit.c
Use struct path in fs_struct
2008-02-14 21:13:33 -08:00
extable.c
module: Don't report discarded init pages as kernel text.
2008-01-29 17:13:18 +11:00
fork.c
Use struct path in fs_struct
2008-02-14 21:13:33 -08:00
futex_compat.c
futex: runtime enable pi and robust functionality
2008-02-23 17:12:15 -08:00
futex.c
futex: runtime enable pi and robust functionality
2008-02-23 17:12:15 -08:00
hrtimer.c
hrtimer: catch expired CLOCK_REALTIME timers early
2008-02-14 22:08:30 +01:00
itimer.c
ITIMER_REAL: convert to use struct pid
2008-02-08 09:22:29 -08:00
kallsyms.c
remove support for un-needed _extratext section
2008-02-06 10:41:01 -08:00
Kconfig.hz
sched: high-res preemption tick
2008-01-25 21:08:29 +01:00
Kconfig.preempt
sched: remove the !PREEMPT_BKL code
2008-01-25 21:08:33 +01:00
kexec.c
vmcoreinfo: add "VMCOREINFO_" to all the call for vmcoreinfo_append_str()
2008-02-07 08:42:25 -08:00
kfifo.c
is_power_of_2: kernel/kfifo.c
2007-07-16 09:05:50 -07:00
kmod.c
Dont touch fs_struct in usermodehelper
2008-02-14 21:13:32 -08:00
kprobes.c
kprobes: kretprobe user entry-handler
2008-02-06 10:41:11 -08:00
ksysfs.c
Kobject: convert remaining kobject_unregister() to kobject_put()
2008-01-24 20:40:40 -08:00
kthread.c
sched: fix, always create kernel threads with normal priority
2008-01-25 21:08:33 +01:00
latencytop.c
sched: latencytop support
2008-01-25 21:08:34 +01:00
lockdep_internals.h
…
lockdep_proc.c
lockdep: Avoid /proc/lockdep & lock_stat infinite output
2007-10-11 22:11:11 +02:00
lockdep.c
Subject: lockdep: include all lock classes in all_lock_classes
2008-02-25 23:03:02 +01:00
Makefile
avoid overflows in kernel/time.c
2008-02-08 09:22:39 -08:00
marker.c
markers: fix sparse warnings in markers.c
2008-02-23 17:12:14 -08:00
module.c
modules: do not try to add sysfs attributes if !CONFIG_SYSFS
2008-02-21 15:27:08 -08:00
mutex-debug.c
kernel: remove fastcall in kernel/*
2008-02-08 09:22:31 -08:00
mutex-debug.h
…
mutex.c
kernel: remove fastcall in kernel/*
2008-02-08 09:22:31 -08:00
mutex.h
…
notifier.c
kernel/notifier.c should #include <linux/reboot.h>
2008-02-06 10:41:02 -08:00
ns_cgroup.c
cgroups: implement namespace tracking subsystem
2007-10-19 11:53:37 -07:00
nsproxy.c
namespaces: move the IPC namespace under IPC_NS option
2008-02-08 09:22:23 -08:00
panic.c
ACPI: Taint kernel on ACPI table override (format corrected)
2008-02-06 22:07:51 -05:00
params.c
Add new string functions strict_strto* and convert kernel params to use them
2008-02-08 09:22:41 -08:00
pid_namespace.c
namespaces: cleanup the code managed with PID_NS option
2008-02-08 09:22:23 -08:00
pid.c
kernel: remove fastcall in kernel/*
2008-02-08 09:22:31 -08:00
pm_qos_params.c
pm qos infrastructure and interface
2008-02-05 09:44:22 -08:00
posix-cpu-timers.c
Use find_task_by_vpid in posix timers
2008-02-08 09:22:41 -08:00
posix-timers.c
hrtimer: check relative timeouts for overflow
2008-02-14 22:08:30 +01:00
printk.c
printk: fix possible printk overrun
2008-02-26 07:42:37 -08:00
profile.c
Nuke a duplicate include from profile.c
2008-02-08 09:22:34 -08:00
ptrace.c
ptrace_check_attach: remove unneeded ->signal != NULL check
2008-02-08 09:22:26 -08:00
rcuclassic.c
Preempt-RCU: implementation
2008-01-25 21:08:24 +01:00
rcupdate.c
rcupdate: fix comment
2008-02-13 16:21:18 -08:00
rcupreempt_trace.c
Preempt-RCU: implementation
2008-01-25 21:08:24 +01:00
rcupreempt.c
rcupreempt: remove never-migrates assumption from rcu_process_callbacks()
2008-02-29 20:21:13 +01:00
rcutorture.c
cpu-hotplug: replace lock_cpu_hotplug() with get_online_cpus()
2008-01-25 21:08:02 +01:00
relay.c
relay: nopage
2008-02-06 10:41:07 -08:00
res_counter.c
Memory controller improve user interface
2008-02-07 08:42:18 -08:00
resource.c
[POWERPC] Add arch-specific walk_memory_remove() for 64-bit powerpc
2008-02-08 19:52:48 +11:00
rtmutex_common.h
Don't operate with pid_t in rtmutex tester
2008-02-08 09:22:41 -08:00
rtmutex-debug.c
Don't operate with pid_t in rtmutex tester
2008-02-08 09:22:41 -08:00
rtmutex-debug.h
…
rtmutex-tester.c
Driver core: change sysdev classes to use dynamic kobject names
2008-01-24 20:40:40 -08:00
rtmutex.c
hrtimer: more hrtimer_init_sleeper() fallout.
2008-02-13 15:45:36 +01:00
rtmutex.h
…
rwsem.c
sched: mark rwsem functions as __sched for wchan/profiling
2007-12-18 15:21:13 +01:00
sched_debug.c
sched: keep total / count stats in addition to the max for
2008-01-25 21:08:35 +01:00
sched_fair.c
sched: clean up __pick_last_entity() a bit
2008-02-25 16:34:17 +01:00
sched_idletask.c
sched: high-res preemption tick
2008-01-25 21:08:29 +01:00
sched_rt.c
sched: rt-group: make rt groups scheduling configurable
2008-02-13 15:45:40 +01:00
sched_stats.h
sched: clean up kernel/sched_stat.h
2007-11-28 15:52:56 +01:00
sched.c
sched: fix signedness warnings in sched.c
2008-02-25 16:34:17 +01:00
seccomp.c
make seccomp zerocost in schedule
2007-07-16 09:05:50 -07:00
signal.c
remove final fastcall users
2008-02-13 16:21:18 -08:00
softirq.c
rcu: add support for dynamic ticks and preempt rcu
2008-02-29 18:46:50 +01:00
softlockup.c
softlockup: fix task state setting
2008-02-29 18:46:53 +01:00
spinlock.c
spinlock: lockbreak cleanup
2008-01-30 13:31:20 +01:00
srcu.c
make srcu_readers_active() static
2008-02-06 10:41:02 -08:00
stacktrace.c
…
stop_machine.c
stopmachine: semaphore to mutex
2008-02-06 10:41:08 -08:00
sys_ni.c
timerfd: new timerfd API
2008-02-05 09:44:07 -08:00
sys.c
Pidns: make full use of xxx_vnr() calls
2008-02-08 09:22:29 -08:00
sysctl_check.c
constify tables in kernel/sysctl_check.c
2008-02-08 09:22:31 -08:00
sysctl.c
hugetlb: fix overcommit locking
2008-02-13 16:21:18 -08:00
taskstats.c
kernel/taskstats.c: fix bogus nlmsg_free()
2007-11-14 18:45:44 -08:00
test_kprobes.c
kprobes: kretprobe user entry-handler
2008-02-06 10:41:11 -08:00
time.c
avoid overflows in kernel/time.c
2008-02-08 09:22:39 -08:00
timeconst.pl
timeconst.pl: correct reversal of USEC_TO_HZ and HZ_TO_USEC
2008-02-12 14:29:26 -08:00
timer.c
kernel: remove fastcall in kernel/*
2008-02-08 09:22:31 -08:00
tsacct.c
Add scaled time to taskstats based process accounting
2007-10-18 14:37:28 -07:00
uid16.c
header cleaning: don't include smp_lock.h when not used
2007-05-08 11:15:07 -07:00
user_namespace.c
namespaces: cleanup the code managed with the USER_NS option
2008-02-08 09:22:23 -08:00
user.c
sched: rt-group: make rt groups scheduling configurable
2008-02-13 15:45:40 +01:00
utsname_sysctl.c
Isolate the UTS namespace's domainname and hostname back
2007-11-29 09:24:53 -08:00
utsname.c
Fix UTS corruption during clone(CLONE_NEWUTS)
2007-09-19 11:24:17 -07:00
wait.c
kernel: remove fastcall in kernel/*
2008-02-08 09:22:31 -08:00
workqueue.c
workqueue: make delayed_work_timer_fn() static
2008-02-08 09:22:37 -08:00