Repository files (latest commit first)

Filename	Latest commit message	Latest commit date
Shailabh Nagar 35df17c57c [PATCH] task delay accounting fixes ... Cleanup allocation and freeing of tsk->delays used by delay accounting. This solves two problems reported for delay accounting: 1. oops in __delayacct_blkio_ticks http://www.uwsg.indiana.edu/hypermail/linux/kernel/0608.2/1844.html Currently tsk->delays is getting freed too early in task exit which can cause a NULL tsk->delays to get accessed via reading of /proc/<tgid>/stats. The patch fixes this problem by freeing tsk->delays closer to when task_struct itself is freed up. As a result, it also eliminates the use of tsk->delays_lock which was only being used (inadequately) to safeguard access to tsk->delays while a task was exiting. 2. Possible memory leak in kernel/delayacct.c http://www.uwsg.indiana.edu/hypermail/linux/kernel/0608.2/1389.html The patch cleans up tsk->delays allocations after a bad fork which was missing earlier. The patch has been tested to fix the problems listed above and stress tested with rapid calls to delay accounting's taskstats command interface (which is the other path that can access the same data, besides the /proc interface causing the oops above). Signed-off-by: Shailabh Nagar <nagar@watson.ibm.com> Cc: Balbir Singh <balbir@in.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>		2006-09-01 11:39:08 -07:00
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irq	[PATCH] genirq: {en,dis}able_irq_wake() need refcounting too	2006-07-31 13:28:36 -07:00
power	[PATCH] Make suspend possible with a traced process at a breakpoint	2006-08-06 08:57:45 -07:00
time
.gitignore
acct.c	[PATCH] Fix sighand->siglock usage in kernel/acct.c	2006-07-14 21:53:54 -07:00
audit.c	[PATCH] fix oops with CONFIG_AUDIT and !CONFIG_AUDITSYSCALL	2006-08-03 10:50:39 -04:00
audit.h	[PATCH] add rule filterkey	2006-07-01 05:43:06 -04:00
auditfilter.c	[PATCH] introduce audit rules counter	2006-08-03 10:55:18 -04:00
auditsc.c	[PATCH] take filling ->pid, etc. out of audit_get_context()	2006-08-03 10:59:51 -04:00
capability.c	[PATCH] sched: cleanup, remove task_t, convert to struct task_struct	2006-07-03 15:27:11 -07:00
compat.c
configs.c	Remove obsolete #include <linux/config.h>	2006-06-30 19:25:36 +02:00
cpu.c	cpu hotplug: simplify and hopefully fix locking	2006-07-23 12:12:16 -07:00
cpuset.c	[PATCH] cpuset: oom panic fix	2006-08-27 11:01:32 -07:00
delayacct.c	[PATCH] task delay accounting fixes	2006-09-01 11:39:08 -07:00
dma.c
exec_domain.c	Remove obsolete #include <linux/config.h>	2006-06-30 19:25:36 +02:00
exit.c	[PATCH] task delay accounting fixes	2006-09-01 11:39:08 -07:00
extable.c
fork.c	[PATCH] task delay accounting fixes	2006-09-01 11:39:08 -07:00
futex.c	[PATCH] futex_find_get_task(): remove an obscure EXIT_ZOMBIE check	2006-08-27 11:01:30 -07:00
futex_compat.c	[PATCH] futex: Apply recent futex fixes to futex_compat	2006-08-06 08:57:49 -07:00
hrtimer.c	[PATCH] fix hrtimer percpu usage typo	2006-08-14 12:54:28 -07:00
itimer.c
kallsyms.c	[PATCH] null-terminate over-long /proc/kallsyms symbols	2006-07-14 21:53:52 -07:00
Kconfig.hz
Kconfig.preempt
kexec.c
kfifo.c
kmod.c	[PATCH] lockdep: annotate on-stack completions	2006-07-03 15:27:09 -07:00
kprobes.c	[PATCH] IA64: kprobe invalidate icache of jump buffer	2006-07-31 13:28:38 -07:00
ksysfs.c	Remove obsolete #include <linux/config.h>	2006-06-30 19:25:36 +02:00
kthread.c	[PATCH] remove kernel/kthread.c:kthread_stop_sem()	2006-07-14 21:53:52 -07:00
lockdep.c	[PATCH] lockdep: core, reduce per-lock class-cache size	2006-07-10 13:24:14 -07:00
lockdep_internals.h	[PATCH] lockdep: core	2006-07-03 15:27:03 -07:00
lockdep_proc.c	[PATCH] lockdep: procfs	2006-07-03 15:27:04 -07:00
Makefile	[PATCH] per-task-delay-accounting: taskstats interface	2006-07-14 21:53:56 -07:00
module.c	[PATCH] null-terminate over-long /proc/kallsyms symbols	2006-07-14 21:53:52 -07:00
mutex-debug.c	[PATCH] lockdep: prove mutex locking correctness	2006-07-03 15:27:04 -07:00
mutex-debug.h	[PATCH] lockdep: better lock debugging	2006-07-03 15:27:01 -07:00
mutex.c	[PATCH] lockdep: prove mutex locking correctness	2006-07-03 15:27:04 -07:00
mutex.h	[PATCH] lockdep: prove mutex locking correctness	2006-07-03 15:27:04 -07:00
panic.c	[PATCH] panic.c build fix	2006-08-14 12:54:28 -07:00
params.c	Remove obsolete #include <linux/config.h>	2006-06-30 19:25:36 +02:00
pid.c	[PATCH] sched: cleanup, remove task_t, convert to struct task_struct	2006-07-03 15:27:11 -07:00
posix-cpu-timers.c
posix-timers.c
printk.c	[PATCH] vt: printk: Fix framebuffer console triggering might_sleep assertion	2006-08-06 08:57:47 -07:00
profile.c	Remove obsolete #include <linux/config.h>	2006-06-30 19:25:36 +02:00
ptrace.c	[PATCH] sched: cleanup, remove task_t, convert to struct task_struct	2006-07-03 15:27:11 -07:00
rcupdate.c	[PATCH] cpu hotplug: replace __devinit* with __cpuinit* for cpu notifications	2006-07-31 13:28:39 -07:00
rcutorture.c
relay.c
resource.c	[PATCH] memory hotadd fixes: find_next_system_ram catch range fix	2006-08-06 08:57:48 -07:00
rtmutex-debug.c	[PATCH] sched: cleanup, remove task_t, convert to struct task_struct	2006-07-03 15:27:11 -07:00
rtmutex-debug.h	[PATCH] lockdep: better lock debugging	2006-07-03 15:27:01 -07:00
rtmutex-tester.c	[PATCH] Add try_to_freeze() to rt-test kthreads	2006-07-14 21:53:53 -07:00
rtmutex.c	[PATCH] reference rt-mutex-design in rtmutex.c	2006-07-31 13:28:43 -07:00
rtmutex.h	[PATCH] lockdep: better lock debugging	2006-07-03 15:27:01 -07:00
rtmutex_common.h
rwsem.c	[PATCH] lockdep: prove rwsem locking correctness	2006-07-03 15:27:04 -07:00
sched.c	[PATCH] revert "Drop tasklist lock in do_sched_setscheduler"	2006-08-27 11:01:29 -07:00
seccomp.c
signal.c	Fix force_sig_info() semantics after cleanups	2006-08-02 20:17:49 -07:00
softirq.c	[PATCH] Reducing local_bh_enable/disable overhead in irqtrace	2006-07-31 13:28:42 -07:00
softlockup.c	[PATCH] cpu hotplug: replace __devinit* with __cpuinit* for cpu notifications	2006-07-31 13:28:39 -07:00
spinlock.c	[PATCH] lockdep: prove spinlock rwlock locking correctness	2006-07-03 15:27:04 -07:00
stacktrace.c	[PATCH] lockdep: stacktrace subsystem, core	2006-07-03 15:27:02 -07:00
stop_machine.c	[PATCH] Remove redundant up() in stop_machine()	2006-08-27 11:01:31 -07:00
sys.c	[PATCH] Fix prctl privilege escalation and suid_dumpable (CVE-2006-2451)	2006-07-12 12:50:25 -07:00
sys_ni.c
sysctl.c	[PATCH] ZVC/zone_reclaim: Leave 1% of unmapped pagecache pages for file I/O	2006-07-03 15:26:59 -07:00
taskstats.c	[PATCH] taskstats: free skb, avoid returns in send_cpu_listeners	2006-07-31 13:28:37 -07:00
time.c
timer.c	[PATCH] sys_getppid oopses on debug kernel	2006-08-14 12:54:29 -07:00
uid16.c
unwind.c
user.c
wait.c	[PATCH] uninline init_waitqueue_head()	2006-07-10 13:24:25 -07:00
workqueue.c	[PATCH] workqueue: remove lock_cpu_hotplug()	2006-08-14 12:54:29 -07:00