kernel-ark/kernel
Christoph Lameter 3e1d1d28d9 [PATCH] Cleanup patch for process freezing
1. Establish a simple API for process freezing defined in linux/include/sched.h:

   frozen(process)		Check for frozen process
   freezing(process)		Check if a process is being frozen
   freeze(process)		Tell a process to freeze (go to refrigerator)
   thaw_process(process)	Restart process
   frozen_process(process)	Process is frozen now

2. Remove all references to PF_FREEZE and PF_FROZEN from all
   kernel sources except sched.h

3. Fix numerous locations where try_to_freeze is manually done by a driver

4. Remove the argument that is no longer necessary from two function calls.

5. Some whitespace cleanup

6. Clear potential race in refrigerator (provides an open window of PF_FREEZE
   cleared before setting PF_FROZEN, recalc_sigpending does not check
   PF_FROZEN).

This patch does not address the problem of freeze_processes() violating the rule
that a task may only modify its own flags by setting PF_FREEZE. This is not clean
in an SMP environment. freeze(process) is therefore not SMP safe!

Signed-off-by: Christoph Lameter <christoph@lameter.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-25 17:10:13 -07:00
..
irq [PATCH] make various thing static 2005-06-24 00:06:43 -07:00
power [PATCH] Cleanup patch for process freezing 2005-06-25 17:10:13 -07:00
acct.c
audit.c
auditsc.c
capability.c
compat.c
configs.c
cpu.c
cpuset.c
dma.c
exec_domain.c
exit.c [PATCH] Optimize sys_times for a single thread process 2005-06-23 09:45:30 -07:00
extable.c
fork.c
futex.c
intermodule.c
itimer.c
kallsyms.c
Kconfig.hz
kfifo.c
kmod.c [PATCH] Keys: Pass session keyring to call_usermodehelper() 2005-06-24 00:05:18 -07:00
kprobes.c [PATCH] jprobes: allow a jprobe to coexist with muliple kprobes 2005-06-23 09:45:25 -07:00
ksysfs.c
kthread.c
Makefile
module.c [PATCH] make various thing static 2005-06-24 00:06:43 -07:00
panic.c
params.c
pid.c
posix-cpu-timers.c
posix-timers.c
printk.c
profile.c
ptrace.c
rcupdate.c
resource.c
sched.c [PATCH] Cleanup patch for process freezing 2005-06-25 17:10:13 -07:00
seccomp.c
signal.c [PATCH] Cleanup patch for process freezing 2005-06-25 17:10:13 -07:00
softirq.c
spinlock.c
stop_machine.c
sys_ni.c
sys.c [PATCH] Keys: Make request-key create an authorisation key 2005-06-24 00:05:19 -07:00
sysctl.c [PATCH] setuid core dump 2005-06-23 09:45:26 -07:00
time.c
timer.c
uid16.c
user.c
wait.c
workqueue.c