linux/arch
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
..
alpha [PATCH] update all defconfigs for ARCH_DISCONTIGMEM_ENABLE 2005-06-23 09:45:02 -07:00
arm [PATCH] ARM: 2698/1: Enable kernel r/w access to user pages on ARMv6 2005-06-24 21:27:39 +01:00
arm26 [PATCH] use ${CROSS_COMPILE}installkernel in arch/*/boot/install.sh 2005-06-23 09:45:07 -07:00
cris [PATCH] make each arch use mm/Kconfig 2005-06-23 09:45:02 -07:00
frv [PATCH] Cleanup patch for process freezing 2005-06-25 17:10:13 -07:00
h8300 [PATCH] Cleanup patch for process freezing 2005-06-25 17:10:13 -07:00
i386 [PATCH] Cleanup patch for process freezing 2005-06-25 17:10:13 -07:00
ia64 [PATCH] compat: introduce compat_time_t 2005-06-23 09:45:32 -07:00
m32r [PATCH] Cleanup patch for process freezing 2005-06-25 17:10:13 -07:00
m68k [PATCH] make each arch use mm/Kconfig 2005-06-23 09:45:02 -07:00
m68knommu [PATCH] make each arch use mm/Kconfig 2005-06-23 09:45:02 -07:00
mips [PATCH] mm/Kconfig: kill unused ARCH_FLATMEM_DISABLE 2005-06-23 09:45:03 -07:00
parisc [PATCH] mm/Kconfig: kill unused ARCH_FLATMEM_DISABLE 2005-06-23 09:45:03 -07:00
ppc [PATCH] Cleanup patch for process freezing 2005-06-25 17:10:13 -07:00
ppc64 [PATCH] ppc64: fix seccomp with 32-bit userland 2005-06-24 00:05:18 -07:00
s390 [PATCH] compat: introduce compat_time_t 2005-06-23 09:45:32 -07:00
sh [PATCH] mm/Kconfig: kill unused ARCH_FLATMEM_DISABLE 2005-06-23 09:45:03 -07:00
sh64 [PATCH] make each arch use mm/Kconfig 2005-06-23 09:45:02 -07:00
sparc [PATCH] use drivers/Kconfig for sparc32 2005-06-23 09:45:33 -07:00
sparc64 [PATCH] compat: introduce compat_time_t 2005-06-23 09:45:32 -07:00
um [PATCH] kstrdup: convert a few existing implementations 2005-06-23 09:45:18 -07:00
v850 [PATCH] make each arch use mm/Kconfig 2005-06-23 09:45:02 -07:00
x86_64 [PATCH] Cleanup patch for process freezing 2005-06-25 17:10:13 -07:00
xtensa [PATCH] xtensa: Architecture support for Tensilica Xtensa Part 8 2005-06-24 00:05:22 -07:00