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T Makphaibulchoke 4965f5667f kernel/resource.c: fix stack overflow in __reserve_region_with_split() 
Using a recursive call add a non-conflicting region in
__reserve_region_with_split() could result in a stack overflow in the case
that the recursive calls are too deep.  Convert the recursive calls to an
iterative loop to avoid the problem.

Tested on a machine containing 135 regions.  The kernel no longer panicked
with stack overflow.

Also tested with code arbitrarily adding regions with no conflict,
embedding two consecutive conflicts and embedding two non-consecutive
conflicts.

Signed-off-by: T Makphaibulchoke <tmac@hp.com>
Reviewed-by: Ram Pai <linuxram@us.ibm.com>
Cc: Paul Gortmaker <paul.gortmaker@gmail.com>
Cc: Wei Yang <weiyang@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-10-06 03:05:31 +09:00
..
debug
kdb: Implement disable_nmi command
2012-09-26 13:42:25 -07:00
events
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2012-10-02 20:25:04 -07:00
gcov
gcov: disable CONSTRUCTORS for UML
2011-07-26 16:49:45 -07:00
irq
genirq: Export dummy_irq_chip
2012-08-21 16:14:23 +02:00
power
Merge branch 'pm-qos'
2012-09-17 20:25:51 +02:00
sched
Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2012-10-01 10:43:39 -07:00
time
Power management updates for 3.7-rc1
2012-10-02 18:32:35 -07:00
trace
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
2012-10-02 11:11:09 -07:00
.gitignore
…
acct.c
userns: Convert bsd process accounting to use kuid and kgid where appropriate
2012-09-18 01:01:33 -07:00
async.c
[SCSI] async: make async_synchronize_full() flush all work regardless of domain
2012-07-20 09:07:37 +01:00
audit_tree.c
audit: clean up refcounting in audit-tree
2012-08-15 12:55:22 +02:00
audit_watch.c
userns: Convert the audit loginuid to be a kuid
2012-09-17 18:08:54 -07:00
audit.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2012-10-02 13:38:27 -07:00
audit.h
userns: Convert audit to work with user namespaces enabled
2012-09-18 01:00:26 -07:00
auditfilter.c
userns: Convert the audit loginuid to be a kuid
2012-09-17 18:08:54 -07:00
auditsc.c
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
2012-10-02 21:38:48 -07:00
backtracetest.c
…
bounds.c
…
capability.c
userns: Teach inode_capable to understand inodes whose uids map to other namespaces.
2012-05-15 14:59:24 -07:00
cgroup_freezer.c
cgroup: mark subsystems with broken hierarchy support and whine if cgroups are nested for them
2012-09-14 12:01:16 -07:00
cgroup.c
Merge branch 'for-3.7-hierarchy' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
2012-10-02 10:52:28 -07:00
compat.c
new helper: sigsuspend()
2012-05-21 23:52:30 -04:00
configs.c
kernel/configs.c: include MODULE_*() when CONFIG_IKCONFIG_PROC=n
2011-07-25 20:57:15 -07:00
cpu_pm.c
kernel/cpu_pm.c: fix various typos
2012-05-31 17:49:27 -07:00
cpu.c
Merge branch 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2012-10-01 10:46:27 -07:00
cpuset.c
cpusets: Remove/update outdated comments
2012-07-24 13:53:28 +02:00
crash_dump.c
Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux
2011-11-06 19:44:47 -08:00
cred.c
userns: Make credential debugging user namespace safe.
2012-08-23 22:54:18 -07:00
delayacct.c
KVM: Steal time implementation
2011-07-14 12:59:14 +03:00
dma.c
Remove all #inclusions of asm/system.h
2012-03-28 18:30:03 +01:00
elfcore.c
…
exec_domain.c
…
exit.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2012-10-02 20:25:04 -07:00
extable.c
extable: Skip sorting if sorted at build time.
2012-04-19 15:06:55 -07:00
fork.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2012-10-02 13:38:27 -07:00
freezer.c
PM / Freezer: Remove references to TIF_FREEZE in comments
2012-03-04 23:08:54 +01:00
futex_compat.c
futex: Mark get_robust_list as deprecated
2012-03-29 11:37:17 +02:00
futex.c
futex: Forbid uaddr == uaddr2 in futex_wait_requeue_pi()
2012-07-24 16:02:57 +02:00
groups.c
userns: Convert in_group_p and in_egroup_p to use kgid_t
2012-05-03 03:29:33 -07:00
hrtimer.c
hrtimer: Update hrtimer base offsets each hrtimer_interrupt
2012-07-11 23:34:39 +02:00
hung_task.c
hung task debugging: Inject NMI when hung and going to panic
2012-04-25 12:39:25 +02:00
irq_work.c
irq_work: fix compile failure on tile from missing include
2012-04-13 13:15:16 -04:00
itimer.c
itimer: Use printk_once instead of WARN_ONCE
2012-04-10 11:00:30 +02:00
jump_label.c
jump_label: Export jump_label_rate_limit()
2012-08-06 19:00:35 +03:00
kallsyms.c
vsprintf: fix %ps on non symbols when using kallsyms
2012-05-29 16:22:32 -07:00
kcmp.c
syscalls, x86: add __NR_kcmp syscall
2012-05-31 17:49:32 -07:00
Kconfig.freezer
…
Kconfig.hz
…
Kconfig.locks
locking: Adjust spin lock inlining Kconfig options
2012-09-13 17:56:13 +02:00
Kconfig.preempt
locking/kconfig: Simplify INLINE_SPIN_UNLOCK usage
2012-03-23 13:18:57 +01:00
kexec.c
kdump: remove unneeded include
2012-10-06 03:05:19 +09:00
kfifo.c
[media] kernel:kfifo: export __kfifo_max_r symbol
2012-04-11 18:24:37 -03:00
kmod.c
kmod: avoid deadlock from recursive kmod call
2012-07-30 17:25:20 -07:00
kprobes.c
kprobes/x86: Fix to support jprobes on ftrace-based kprobe
2012-09-13 22:52:11 -04:00
ksysfs.c
kernel: ksysfs.c is implicitly using stat.h
2011-10-31 09:20:13 -04:00
kthread.c
kthread: Implement park/unpark facility
2012-08-13 17:01:06 +02:00
latencytop.c
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
lglock.c
brlocks/lglocks: turn into functions
2012-05-29 23:28:41 -04:00
lockdep_internals.h
…
lockdep_proc.c
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
lockdep_states.h
…
lockdep.c
lockdep: Check if nested lock is actually held
2012-09-13 17:00:44 +02:00
Makefile
Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2012-10-01 10:28:49 -07:00
module.c
Guard check in module loader against integer overflow
2012-05-23 22:28:53 +09:30
mutex-debug.c
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
mutex-debug.h
mutex: Use p->on_cpu for the adaptive spin
2011-04-14 08:52:33 +02:00
mutex.c
sched/rt: Use schedule_preempt_disabled()
2012-03-01 10:28:03 +01:00
mutex.h
mutex: Use p->on_cpu for the adaptive spin
2011-04-14 08:52:33 +02:00
notifier.c
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
nsproxy.c
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
padata.c
padata: Fix cpu hotplug
2012-03-29 19:52:46 +08:00
panic.c
panic: fix a possible deadlock in panic()
2012-07-30 17:25:13 -07:00
params.c
params: replace printk(KERN_<LVL>...) with pr_<lvl>(...)
2012-05-04 17:28:18 -07:00
pid_namespace.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
2012-10-02 11:11:09 -07:00
pid.c
net ip6 flowlabel: Make owner a union of struct pid * and kuid_t
2012-08-14 21:49:25 -07:00
posix-cpu-timers.c
[S390] cputime: add sparse checking and cleanup
2011-12-15 14:56:19 +01:00
posix-timers.c
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
printk.c
printk: Fix calculation of length used to discard records
2012-08-12 21:25:50 +03:00
profile.c
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
ptrace.c
ptrace: mark __ptrace_may_access() static
2012-08-03 14:47:17 +10:00
range.c
range: fix bogus misuse of module.h to get printk()
2011-10-31 09:20:11 -04:00
rcu.h
rcu: Allow nesting of rcu_idle_enter() and rcu_idle_exit()
2012-02-21 09:06:12 -08:00
rcupdate.c
rcu: Add PROVE_RCU_DELAY to provoke difficult races
2012-09-23 07:42:49 -07:00
rcutiny_plugin.h
rcu: Move TINY_PREEMPT_RCU away from raw_local_irq_save()
2012-09-23 07:42:51 -07:00
rcutiny.c
rcu: Move TINY_RCU quiescent state out of extended quiescent state
2012-09-23 07:42:52 -07:00
rcutorture.c
rcu: Prevent initialization race in rcutorture kthreads
2012-09-23 07:42:23 -07:00
rcutree_plugin.h
rcu: Make RCU_FAST_NO_HZ handle adaptive ticks
2012-09-26 15:44:02 +02:00
rcutree_trace.c
Merge remote-tracking branch 'tip/smp/hotplug' into next.2012.09.25b
2012-09-25 10:01:45 -07:00
rcutree.c
rcu: Apply micro-optimization and int/bool fixes to RCU's idle handling
2012-09-26 15:47:18 +02:00
rcutree.h
rcu: Ignore userspace extended quiescent state by default
2012-09-26 15:47:01 +02:00
relay.c
splice: fix racy pipe->buffers uses
2012-06-13 21:16:42 +02:00
res_counter.c
rescounters: add res_counter_uncharge_until()
2012-05-29 16:22:27 -07:00
resource.c
kernel/resource.c: fix stack overflow in __reserve_region_with_split()
2012-10-06 03:05:31 +09:00
rtmutex_common.h
…
rtmutex-debug.c
lockdep, rtmutex, bug: Show taint flags on error
2011-12-06 08:16:49 +01:00
rtmutex-debug.h
…
rtmutex-tester.c
rtmutex-tester: convert sysdev_class to a regular subsystem
2011-12-14 14:54:22 -08:00
rtmutex.c
Revert "rcu: Permit rt_mutex_unlock() with irqs disabled"
2011-12-11 10:33:18 -08:00
rtmutex.h
…
rwsem.c
Remove all #inclusions of asm/system.h
2012-03-28 18:30:03 +01:00
seccomp.c
seccomp: fix build warnings when there is no CONFIG_SECCOMP_FILTER
2012-04-18 12:24:52 +10:00
semaphore.c
semaphore: fix improper comment reference to mutex
2012-04-05 17:15:55 -07:00
signal.c
coredump: pass siginfo_t* to do_coredump() and below, not merely signr
2012-10-06 03:05:16 +09:00
smp.c
smp: Remove ipi_call_lock[_irq]()/ipi_call_unlock[_irq]()
2012-06-05 17:27:14 +02:00
smpboot.c
hotplug: Fix UP bug in smpboot hotplug code
2012-08-13 17:01:07 +02:00
smpboot.h
smpboot: Provide infrastructure for percpu hotplug threads
2012-08-13 17:01:07 +02:00
softirq.c
Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2012-10-01 10:43:39 -07:00
spinlock.c
locking/kconfig: Simplify INLINE_SPIN_UNLOCK usage
2012-03-23 13:18:57 +01:00
srcu.c
workqueue: deprecate system_nrt[_freezable]_wq
2012-08-20 14:51:24 -07:00
stacktrace.c
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
stop_machine.c
Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux
2011-11-06 19:44:47 -08:00
sys_ni.c
syscalls, x86: add __NR_kcmp syscall
2012-05-31 17:49:32 -07:00
sys.c
poweroff: fix bug in orderly_poweroff()
2012-10-06 03:04:48 +09:00
sysctl_binary.c
mm: prepare for removal of obsolete /proc/sys/vm/nr_pdflush_threads
2012-07-31 18:42:40 -07:00
sysctl.c
coredump: make core dump functionality optional
2012-10-06 03:05:15 +09:00
task_work.c
task_work: task_work_add() should not succeed after exit_task_work()
2012-09-13 16:47:34 +02:00
taskstats.c
taskstats: cgroupstats_user_cmd() may leak on error
2012-10-06 03:05:31 +09:00
test_kprobes.c
…
time.c
time: Remove bogus comments
2012-03-15 18:17:55 -07:00
timeconst.pl
…
timer.c
Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2012-10-01 10:45:16 -07:00
tracepoint.c
static keys: Introduce 'struct static_key', static_key_true()/false() and static_key_slow_[inc|dec]()
2012-02-24 10:05:59 +01:00
tsacct.c
userns: Convert taskstats to handle the user and pid namespaces.
2012-09-18 01:01:32 -07:00
uid16.c
userns: Convert setting and getting uid and gid system calls to use kuid and kgid
2012-05-03 03:28:41 -07:00
up.c
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
user_namespace.c
userns: Add kprojid_t and associated infrastructure in projid.h
2012-09-18 01:01:37 -07:00
user-return-notifier.c
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
user.c
userns: Add kprojid_t and associated infrastructure in projid.h
2012-09-18 01:01:37 -07:00
utsname_sysctl.c
Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux
2011-11-06 19:44:47 -08:00
utsname.c
userns: Use cred->user_ns instead of cred->user->user_ns
2012-04-07 16:55:51 -07:00
wait.c
lockdep/waitqueues: Add better annotation
2011-12-21 10:07:39 +01:00
watchdog.c
watchdog: Use hotplug thread infrastructure
2012-08-13 17:01:07 +02:00
workqueue_sched.h
…
workqueue.c
Merge branch 'for-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq
2012-10-02 09:54:49 -07:00