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linux-2.6
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linux-2.6/kernel
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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
Kconfig.hz
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Kconfig.preempt
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Makefile avoid overflows in kernel/time.c 2008-02-08 09:22:39 -08:00
acct.c
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audit.c d_path: Make d_path() use a struct path 2008-02-14 21:17:09 -08:00
audit.h
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audit_tree.c Introduce path_put() 2008-02-14 21:13:33 -08:00
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
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capability.c
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cgroup.c cgroup: remove dead code in cgroup_get_rootdir() 2008-02-23 17:13:25 -08:00
cgroup_debug.c
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compat.c hrtimer: don't modify restart_block->fn in restart functions 2008-02-10 10:48:03 +01:00
configs.c
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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
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dma.c
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exec_domain.c
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exit.c Use struct path in fs_struct 2008-02-14 21:13:33 -08:00
extable.c
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fork.c Use struct path in fs_struct 2008-02-14 21:13:33 -08:00
futex.c futex: runtime enable pi and robust functionality 2008-02-23 17:12:15 -08:00
futex_compat.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
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kexec.c vmcoreinfo: add "VMCOREINFO_" to all the call for vmcoreinfo_append_str() 2008-02-07 08:42:25 -08:00
kfifo.c
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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
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kthread.c
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latencytop.c
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lockdep.c Subject: lockdep: include all lock classes in all_lock_classes 2008-02-25 23:03:02 +01:00
lockdep_internals.h
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lockdep_proc.c
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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
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mutex.c kernel: remove fastcall in kernel/* 2008-02-08 09:22:31 -08:00
mutex.h
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notifier.c
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ns_cgroup.c
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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.c kernel: remove fastcall in kernel/* 2008-02-08 09:22:31 -08:00
pid_namespace.c namespaces: cleanup the code managed with PID_NS option 2008-02-08 09:22:23 -08:00
pm_qos_params.c
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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
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rcupdate.c rcupdate: fix comment 2008-02-13 16:21:18 -08:00
rcupreempt.c rcupreempt: remove never-migrates assumption from rcu_process_callbacks() 2008-02-29 20:21:13 +01:00
rcupreempt_trace.c
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rcutorture.c
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relay.c
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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-debug.c Don't operate with pid_t in rtmutex tester 2008-02-08 09:22:41 -08:00
rtmutex-debug.h
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rtmutex-tester.c
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rtmutex.c hrtimer: more hrtimer_init_sleeper() fallout. 2008-02-13 15:45:36 +01:00
rtmutex.h
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rtmutex_common.h Don't operate with pid_t in rtmutex tester 2008-02-08 09:22:41 -08:00
rwsem.c
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sched.c sched: fix signedness warnings in sched.c 2008-02-25 16:34:17 +01:00
sched_debug.c
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sched_fair.c sched: clean up __pick_last_entity() a bit 2008-02-25 16:34:17 +01:00
sched_idletask.c
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sched_rt.c sched: rt-group: make rt groups scheduling configurable 2008-02-13 15:45:40 +01:00
sched_stats.h
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seccomp.c
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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
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srcu.c
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stacktrace.c
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stop_machine.c
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sys.c Pidns: make full use of xxx_vnr() calls 2008-02-08 09:22:29 -08:00
sys_ni.c
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sysctl.c hugetlb: fix overcommit locking 2008-02-13 16:21:18 -08:00
sysctl_check.c constify tables in kernel/sysctl_check.c 2008-02-08 09:22:31 -08:00
taskstats.c
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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
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uid16.c
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user.c sched: rt-group: make rt groups scheduling configurable 2008-02-13 15:45:40 +01:00
user_namespace.c namespaces: cleanup the code managed with the USER_NS option 2008-02-08 09:22:23 -08:00
utsname.c
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utsname_sysctl.c
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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