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linux/include/asm-um
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Matt Helsley 83224b0837 container freezer: add TIF_FREEZE flag to all architectures 
This patch series introduces a cgroup subsystem that utilizes the swsusp
freezer to freeze a group of tasks.  It's immediately useful for batch job
management scripts.  It should also be useful in the future for
implementing container checkpoint/restart.

The freezer subsystem in the container filesystem defines a cgroup file
named freezer.state.  Reading freezer.state will return the current state
of the cgroup.  Writing "FROZEN" to the state file will freeze all tasks
in the cgroup.  Subsequently writing "RUNNING" will unfreeze the tasks in
the cgroup.

* Examples of usage :

   # mkdir /containers/freezer
   # mount -t cgroup -ofreezer freezer  /containers
   # mkdir /containers/0
   # echo $some_pid > /containers/0/tasks

to get status of the freezer subsystem :

   # cat /containers/0/freezer.state
   RUNNING

to freeze all tasks in the container :

   # echo FROZEN > /containers/0/freezer.state
   # cat /containers/0/freezer.state
   FREEZING
   # cat /containers/0/freezer.state
   FROZEN

to unfreeze all tasks in the container :

   # echo RUNNING > /containers/0/freezer.state
   # cat /containers/0/freezer.state
   RUNNING

This patch:

The first step in making the refrigerator() available to all
architectures, even for those without power management.

The purpose of such a change is to be able to use the refrigerator() in a
new control group subsystem which will implement a control group freezer.

[akpm@linux-foundation.org: fix sparc]
Signed-off-by: Cedric Le Goater <clg@fr.ibm.com>
Signed-off-by: Matt Helsley <matthltc@us.ibm.com>
Acked-by: Pavel Machek <pavel@suse.cz>
Acked-by: Serge E. Hallyn <serue@us.ibm.com>
Acked-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Nigel Cunningham <nigel@tuxonice.net>
Tested-by: Matt Helsley <matthltc@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 		2008-10-20 08:52:33 -07:00
..
a.out-core.h aout: suppress A.OUT library support if !CONFIG_ARCH_SUPPORTS_AOUT 2008-02-08 09:22:30 -08:00
a.out.h aout: move STACK_TOP[_MAX] to asm/processor.h 2008-02-08 09:22:29 -08:00
alternative-asm.h x86: rename .i assembler includes to .h 2007-10-17 20:16:29 +02:00
alternative.h [PATCH] x86: SMP alternatives 2006-03-23 07:38:04 -08:00
apic.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
archparam-i386.h [PATCH] uml: s390 preparation, elf.h 2005-05-05 16:36:37 -07:00
archparam-ppc.h [PATCH] uml: remove some leftover PPC code 2006-10-20 10:26:36 -07:00
archparam-x86_64.h [PATCH] uml: s390 preparation, elf.h 2005-05-05 16:36:37 -07:00
asm.h uml: add asm-um/asm.h 2008-01-30 13:31:17 +01:00
atomic.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
auxvec.h [PATCH] auxiliary vector cleanups 2005-09-07 16:57:21 -07:00
bitops.h forbid asm/bitops.h direct inclusion 2007-10-19 11:53:41 -07:00
boot.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
bug.h uml: use generic BUG 2007-06-24 08:59:11 -07:00
bugs.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
byteorder.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
cache.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
cacheflush.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
calling.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
checksum.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
cmpxchg.h x86: create asm/cmpxchg.h 2007-05-08 11:15:20 -07:00
cobalt.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
common.lds.S uml: fix linker script alignment bugs 2007-08-31 01:42:22 -07:00
cpufeature.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
cputime.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
current.h uml: current.h cleanup 2008-02-05 09:44:28 -08:00
delay.h [PATCH] uml: fix unreasonably long udelay 2007-04-02 10:06:08 -07:00
desc.h [PATCH] uml: implement {get,set}_thread_area for i386 2006-03-31 12:18:52 -08:00
device.h Driver core: add dev_archdata to struct device 2006-12-01 14:52:01 -08:00
div64.h rename div64_64 to div64_u64 2008-05-01 08:03:58 -07:00
dma-mapping.h net: Fix build with ARCH=um 2008-09-19 12:44:54 -07:00
dma.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
dwarf2.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
elf-i386.h [PATCH] remove unused ibcs2/PER_SVR4 in SET_PERSONALITY 2008-10-16 15:40:05 +02:00
elf-ppc.h [PATCH] remove unused ibcs2/PER_SVR4 in SET_PERSONALITY 2008-10-16 15:40:05 +02:00
elf-x86_64.h [PATCH] remove unused ibcs2/PER_SVR4 in SET_PERSONALITY 2008-10-16 15:40:05 +02:00
emergency-restart.h [PATCH] Add emergency_restart() 2005-07-26 14:35:41 -07:00
errno.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
fcntl.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
fixmap.h uml: runtime host VMSPLIT detection 2008-02-08 09:22:42 -08:00
floppy.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
frame.h x86: rename .i assembler includes to .h 2007-10-17 20:16:29 +02:00
futex.h [PATCH] consolidate asm/futex.h 2006-01-08 20:13:39 -08:00
hardirq.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
highmem.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
host_ldt-i386.h [PATCH] uml: split ldt.h in arch-independent and arch-dependant code 2006-03-31 12:18:51 -08:00
host_ldt-x86_64.h [PATCH] uml: split ldt.h in arch-independent and arch-dependant code 2006-03-31 12:18:51 -08:00
hw_irq.h [PATCH] genirq: add ->retrigger() irq op to consolidate hw_irq_resend() 2006-06-29 10:26:23 -07:00
ide.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
io.h [PATCH] uml: add __raw_writeq definition 2006-06-30 11:25:38 -07:00
ioctl.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ioctls.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ipcbuf.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
irq.h uml: random driver fixes 2008-05-13 08:02:22 -07:00
irq_regs.h [PATCH] um: irq changes break build 2006-10-06 08:53:42 -07:00
irq_vectors.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
irqflags.h [PATCH] uml: add asm/irqflags.h 2006-06-05 12:29:17 -07:00
kdebug.h move die notifier handling to common code 2007-05-08 11:15:04 -07:00
kmap_types.h [PATCH] uml: make copy_*_user atomic 2006-07-01 09:56:03 -07:00
ldt.h uml: LDT mutex conversion 2008-02-05 09:44:31 -08:00
linkage.h uml: get rid of asmlinkage 2008-02-05 09:44:25 -08:00
local.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
locks.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
mca_dma.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
mman.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
mmu.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
mmu_context.h uml: activate_mm: remove the dead PF_BORROWED_MM check 2008-06-06 11:36:22 -07:00
module-generic.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
module-i386.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
module-x86_64.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
msgbuf.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
mtrr.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
mutex.h [PATCH] mutex subsystem, add default include/asm-*/mutex.h files 2006-01-09 15:59:19 -08:00
nops.h git-x86: unbreak UML 2008-01-30 13:32:38 +01:00
page.h arch/um/kernel/mem.c: remove arch_validate() 2008-07-24 10:47:24 -07:00
page_offset.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
param.h asm-{alpha,h8300,um,v850,xtensa}/param.h: unbreak HZ for userspace 2008-05-14 19:11:14 -07:00
paravirt.h uml: add asm/paravirt.h 2007-06-24 08:59:11 -07:00
pci.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
pda.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
percpu.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
pgalloc.h CONFIG_HIGHPTE vs. sub-page page tables. 2008-02-08 09:22:42 -08:00
pgtable-2level.h uml: 64-bit tlb fixes 2008-02-05 09:44:29 -08:00
pgtable-3level.h uml: 64-bit tlb fixes 2008-02-05 09:44:29 -08:00
pgtable.h mm: introduce pte_special pte bit 2008-04-28 08:58:23 -07:00
poll.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
posix_types.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
prctl.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
processor-generic.h uml: runtime host VMSPLIT detection 2008-02-08 09:22:42 -08:00
processor-i386.h uml: remove xmm checking on x86 2008-02-05 09:44:24 -08:00
processor-ppc.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
processor-x86_64.h uml: x86_64 should copy %fs during fork 2008-02-08 09:22:43 -08:00
ptrace-generic.h UML: make several more things static 2008-07-24 10:47:24 -07:00
ptrace-i386.h uml: ptrace floating point fixes 2007-10-16 09:43:07 -07:00
ptrace-x86_64.h uml: remove code made redundant by CHOOSE_MODE removal 2007-10-16 09:43:05 -07:00
required-features.h uml: fix build breakage 2007-05-09 12:30:48 -07:00
resource.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
rwlock.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
rwsem.h [PATCH] remove gcc-2 checks 2006-01-08 20:14:02 -08:00
scatterlist.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
sections.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
segment.h [PATCH] uml: check for differences in host support 2006-03-31 12:18:52 -08:00
sembuf.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
serial.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
setup.h [PATCH] uml: command line handling cleanup 2005-05-06 22:09:29 -07:00
shmbuf.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
shmparam.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
sigcontext-generic.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
sigcontext-i386.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
sigcontext-ppc.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
sigcontext-x86_64.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
siginfo.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
signal.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
smp.h uml: fix inlines 2007-10-16 09:43:06 -07:00
socket.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
sockios.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
spinlock.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
spinlock_types.h [PATCH] uml spinlock breakage 2005-09-10 16:50:01 -07:00
stat.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
statfs.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
string.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
suspend.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
system-generic.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
system-i386.h [PATCH] uml: UML/i386 cmpxchg fix 2005-09-17 11:50:01 -07:00
system-ppc.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
system-x86_64.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
termbits.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
termios.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
thread_info.h container freezer: add TIF_FREEZE flag to all architectures 2008-10-20 08:52:33 -07:00
timex.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
tlb.h uml: compile error fix 2008-04-15 19:35:40 -07:00
tlbflush.h remove unused flush_tlb_pgtables 2007-10-19 11:53:34 -07:00
topology.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
types.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
uaccess.h uml: header untangling 2008-02-05 09:44:28 -08:00
ucontext.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
unaligned.h kernel: Move arches to use common unaligned access 2008-04-29 08:06:27 -07:00
unistd.h x86 merge fallout: uml 2007-10-29 07:41:32 -07:00
user.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
vga.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
vm-flags-i386.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
vm-flags-x86_64.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
vm86.h [PATCH] uml: vm86 compile fix 2005-07-28 21:46:03 -07:00
xor.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00