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ac91d85456372a90af5b85eb6620fd2efb1e431b
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Lai Jiangshan ac91d85456 tracing: Fix warning in s_next of trace file ops 
This warning in s_next() can be triggered by lseek():
 [<c018b3f7>] ? s_next+0x77/0x80
 [<c013e3c1>] warn_slowpath_common+0x81/0xa0
 [<c018b3f7>] ? s_next+0x77/0x80
 [<c013e3fa>] warn_slowpath_null+0x1a/0x20
 [<c018b3f7>] s_next+0x77/0x80
 [<c01efa77>] traverse+0x117/0x200
 [<c01eff13>] seq_lseek+0xa3/0x120
 [<c01efe70>] ? seq_lseek+0x0/0x120
 [<c01d7081>] vfs_llseek+0x41/0x50
 [<c01d8116>] sys_llseek+0x66/0xa0
 [<c0102bd0>] sysenter_do_call+0x12/0x26

The iterator "leftover" variable is zeroed in the opening of the trace
file. But lseek can call s_start() which will call s_next() without
reseting the "leftover" variable back to zero, which might trigger
the WARN_ON_ONCE(iter->leftover) that is in s_next().

Cc: stable@kernel.org
Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
LKML-Reference: <4B8CE06A.9090207@cn.fujitsu.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2010-03-02 21:11:47 -05:00
..
gcov
microblaze: Enable GCOV_PROFILE_ALL
2009-09-21 14:29:21 +02:00
irq
genirq: Convert irq_desc.lock to raw_spinlock
2009-12-14 23:55:33 +01:00
power
PM / Hibernate: Fix preallocating of memory
2010-02-26 20:39:13 +01:00
time
Merge branch 'timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2010-03-01 08:48:25 -08:00
trace
tracing: Fix warning in s_next of trace file ops
2010-03-02 21:11:47 -05:00
.gitignore
…
acct.c
bsdacct: fix uid/gid misreporting
2009-12-15 08:53:10 -08:00
async.c
…
audit_tree.c
fix more leaks in audit_tree.c tag_chunk()
2009-12-19 09:27:43 -08:00
audit_watch.c
Audit: reorganize struct audit_watch to save 8 bytes
2009-09-24 03:50:25 -04:00
audit.c
Audit: send signal info if selinux is disabled
2009-09-24 03:50:26 -04:00
audit.h
…
auditfilter.c
…
auditsc.c
Sanitize f_flags helpers
2009-12-22 12:27:34 -05:00
backtracetest.c
…
bounds.c
kbuild: move bounds.h to include/generated
2009-12-12 13:08:14 +01:00
capability.c
remove CONFIG_SECURITY_FILE_CAPABILITIES compile option
2009-11-24 15:06:47 +11:00
cgroup_freezer.c
cgroups: let ss->can_attach and ss->attach do whole threadgroups at a time
2009-09-24 07:20:58 -07:00
cgroup.c
sched, cgroups: Fix module export
2010-02-25 12:02:13 +01:00
compat.c
…
configs.c
…
cpu.c
sched: Correct printk whitespace in warning from cpu down task check
2010-01-28 06:59:55 +01:00
cpuset.c
sched: Fix balance vs hotplug race
2009-12-06 21:10:56 +01:00
cred-internals.h
…
cred.c
kernel/cred.c: use kmem_cache_free
2010-02-03 10:21:57 +11:00
delayacct.c
headers: taskstats_kern.h trim
2009-09-18 09:48:52 -07:00
dma.c
…
exec_domain.c
…
exit.c
sched: Use lockdep-based checking on rcu_dereference()
2010-02-25 10:34:26 +01:00
extable.c
…
fork.c
sched: Use lockdep-based checking on rcu_dereference()
2010-02-25 10:34:26 +01:00
freezer.c
sched: fix nr_uninterruptible accounting of frozen tasks really
2009-07-18 14:19:53 +02:00
futex_compat.c
futex: Protect pid lookup in compat code with RCU
2009-12-09 14:22:14 +01:00
futex.c
futex: Handle futex value corruption gracefully
2010-02-03 15:13:22 +01:00
groups.c
…
hrtimer.c
hrtimers: Convert to raw_spinlocks
2009-12-14 23:55:34 +01:00
hung_task.c
softlockup: Fix hung_task_check_count sysctl
2009-11-27 06:21:57 +01:00
hw_breakpoint.c
perf: Make bp_len type to u64 generic across the arch
2010-02-04 01:07:12 +01:00
itimer.c
itimers: Fix racy writes to cpu_itimer fields
2009-11-18 16:32:12 +01:00
kallsyms.c
hw-breakpoints: Fix broken hw-breakpoint sample module
2009-11-10 11:23:29 +01:00
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
Merge git://git.infradead.org/~dwmw2/mtd-2.6.33
2010-01-24 10:31:34 -08:00
kfifo.c
kfifo: Don't use integer as NULL pointer
2010-02-16 15:11:08 -08:00
kgdb.c
Merge branch 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2010-02-04 16:07:41 -08:00
kmod.c
kmod: fix resource leak in call_usermodehelper_pipe()
2010-01-11 09:34:04 -08:00
kprobes.c
kprobes: Add mcount to the kprobes blacklist
2010-02-15 05:45:49 +01:00
ksysfs.c
sched: Remove USER_SCHED
2010-01-21 13:40:18 +01:00
kthread.c
kthread, sched: Remove reference to kthread_create_on_cpu
2010-02-09 11:47:39 +01:00
latencytop.c
…
lockdep_internals.h
lockdep: BFS cleanup
2009-07-24 10:53:29 +02:00
lockdep_proc.c
seq_file: constify seq_operations
2009-09-23 07:39:29 -07:00
lockdep_states.h
…
lockdep.c
rcu: Make lockdep_rcu_dereference() message less alarmist
2010-02-26 08:20:46 +01:00
Makefile
padata: Generic parallelization/serialization interface
2010-01-06 19:47:10 +11:00
module.c
modules: Skip empty sections when exporting section notes
2010-01-06 01:11:29 -08:00
mutex-debug.c
headers: remove sched.h from interrupt.h
2009-10-11 11:20:58 -07:00
mutex-debug.h
locking: Implement new raw_spinlock
2009-12-14 23:55:32 +01:00
mutex.c
mutex: Better control mutex adaptive spinning config
2009-12-03 11:50:11 +01:00
mutex.h
…
notifier.c
sched: Use lockdep-based checking on rcu_dereference()
2010-02-25 10:34:26 +01:00
ns_cgroup.c
cgroups: let ss->can_attach and ss->attach do whole threadgroups at a time
2009-09-24 07:20:58 -07:00
nsproxy.c
…
padata.c
padata: Generic parallelization/serialization interface
2010-01-06 19:47:10 +11:00
panic.c
kmsg_dump: Dump on crash_kexec as well
2009-12-31 19:45:04 +00:00
params.c
tree-wide: convert open calls to remove spaces to skip_spaces() lib function
2009-12-15 08:53:32 -08:00
perf_event.c
Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2010-02-28 10:20:25 -08:00
pid_namespace.c
pidns: deny CLONE_PARENT|CLONE_NEWPID combination
2009-09-24 07:21:04 -07:00
pid.c
sched: Use lockdep-based checking on rcu_dereference()
2010-02-25 10:34:26 +01:00
pm_qos_params.c
pm_qos: clean up racy global "name" variable
2009-10-14 15:31:10 +02:00
posix-cpu-timers.c
posix-cpu-timers: optimize and document timer_create callback
2009-11-18 12:36:05 +01:00
posix-timers.c
posix-timers.c: Don't export local functions
2010-02-05 14:54:10 +01:00
printk.c
Merge git://git.infradead.org/~dwmw2/mtd-2.6.33
2010-01-24 10:31:34 -08:00
profile.c
kernel/profile.c: Switch /proc/irq/prof_cpu_mask to seq_file
2009-09-20 20:15:40 +02:00
ptrace.c
ptrace: Fix ptrace_regset() comments and diagnose errors specifically
2010-02-23 13:45:26 -08:00
rcupdate.c
rcu: Export rcu_scheduler_active
2010-02-26 08:20:46 +01:00
rcutiny.c
rcu: Eliminate unneeded function wrapping
2009-11-22 18:58:16 +01:00
rcutorture.c
rcu: Fix rcutorture mod_timer argument to delay one jiffy
2010-02-25 10:35:00 +01:00
rcutree_plugin.h
rcu: Fix accelerated GPs for last non-dynticked CPU
2010-02-27 09:53:53 +01:00
rcutree_trace.c
rcu: Stop overflowing signed integers
2010-02-25 10:34:57 +01:00
rcutree.c
rcu: Fix accelerated grace periods for last non-dynticked CPU
2010-02-27 09:53:52 +01:00
rcutree.h
rcu: Fix accelerated grace periods for last non-dynticked CPU
2010-02-27 09:53:52 +01:00
relay.c
const: constify remaining pipe_buf_operations
2009-12-16 07:20:05 -08:00
res_counter.c
memcg: some modification to softlimit under hierarchical memory reclaim.
2009-10-01 16:11:13 -07:00
resource.c
Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2010-02-28 10:38:45 -08:00
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: Fix cpu_clock() in NMIs, on !CONFIG_HAVE_UNSTABLE_SCHED_CLOCK
2009-12-15 09:04:36 +01:00
sched_cpupri.c
sched: Use for_each_bit
2010-02-02 06:58:27 +01:00
sched_cpupri.h
sched: Convert cpupri lock to raw_spinlock
2009-12-14 23:55:33 +01:00
sched_debug.c
sched: Convert rq->lock to raw_spinlock
2009-12-14 23:55:33 +01:00
sched_fair.c
sched: Fix SCHED_MC regression caused by change in sched cpu_power
2010-02-26 15:45:13 +01:00
sched_features.h
sched: Discard some old bits
2009-12-09 10:03:07 +01:00
sched_idletask.c
sched: Remove the sched_class load_balance methods
2010-01-21 13:40:09 +01:00
sched_rt.c
sched: Change usage of rt_rq->rt_se to rt_rq->tg->rt_se[cpu]
2010-02-04 09:57:32 +01:00
sched_stats.h
…
sched.c
Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2010-02-28 10:31:01 -08:00
seccomp.c
…
semaphore.c
…
signal.c
kernel/signal.c: fix kernel information leak with print-fatal-signals=1
2010-01-11 09:34:05 -08:00
slow-work-debugfs.c
SLOW_WORK: Move slow_work's proc file to debugfs
2009-12-01 08:20:31 -08:00
slow-work.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/sysctl-2.6
2009-12-08 07:38:50 -08:00
slow-work.h
SLOW_WORK: Move slow_work's proc file to debugfs
2009-12-01 08:20:31 -08:00
smp.c
generic-ipi: Optimize accesses by using DEFINE_PER_CPU_SHARED_ALIGNED for IPI data
2010-01-18 09:02:59 +01:00
softirq.c
hrtimer, softirq: Fix hrtimer->softirq trampoline
2010-02-03 18:17:40 +01:00
softlockup.c
softlockup: Add sched_clock_tick() to avoid kernel warning on kgdb resume
2010-02-01 08:22:32 +01:00
spinlock.c
locking: Cleanup the name space completely
2009-12-14 23:55:33 +01:00
srcu.c
rcu: Introduce lockdep-based checking to RCU read-side primitives
2010-02-25 09:40:59 +01:00
stacktrace.c
…
stop_machine.c
…
sys_ni.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6
2009-12-08 07:55:01 -08:00
sys.c
Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2010-02-28 10:31:01 -08:00
sysctl_binary.c
SYSCTL: Print binary sysctl warnings (nearly) only once
2009-12-23 21:00:20 +01:00
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
sparc: Support show_unhandled_signals.
2010-03-01 00:02:23 -08:00
taskstats.c
const: struct nla_policy
2010-02-18 14:30:18 -08:00
test_kprobes.c
…
time.c
Revert "time: Remove xtime_cache"
2009-12-22 14:10:37 -08:00
timeconst.pl
…
timer.c
perf: Fix perf_event_do_pending() fallback callsite
2010-01-21 13:40:39 +01:00
tracepoint.c
trivial: fix typo "to to" in multiple files
2009-09-21 15:14:55 +02:00
tsacct.c
…
uid16.c
headers: utsname.h redux
2009-09-23 18:13:10 -07:00
up.c
…
user_namespace.c
…
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 USER_SCHED
2010-01-21 13:40:18 +01:00
utsname_sysctl.c
sysctl kernel: Remove binary sysctl logic
2009-11-12 02:04:55 -08:00
utsname.c
…
wait.c
locking, sched: Give waitqueue spinlocks their own lockdep classes
2009-08-10 14:43:09 +02:00
workqueue.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq
2009-12-10 09:35:44 -08:00