The patch titled
container freezer: add TIF_FREEZE flag to all architectures
has been removed from the -mm tree. Its filename was
container-freezer-add-tif_freeze-flag-to-all-architectures.patch
This patch was dropped because it was merged into mainline or a subsystem tree
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: container freezer: add TIF_FREEZE flag to all architectures
From: Matt Helsley <matthltc@xxxxxxxxxx>
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@xxxxxxxxxxxxxxxxxxxx: fix sparc]
Signed-off-by: Cedric Le Goater <clg@xxxxxxxxxx>
Signed-off-by: Matt Helsley <matthltc@xxxxxxxxxx>
Acked-by: Pavel Machek <pavel@xxxxxxx>
Acked-by: Serge E. Hallyn <serue@xxxxxxxxxx>
Acked-by: Rafael J. Wysocki <rjw@xxxxxxx>
Acked-by: Nigel Cunningham <nigel@xxxxxxxxxxxx>
Tested-by: Matt Helsley <matthltc@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/alpha/include/asm/thread_info.h | 2 ++
arch/avr32/include/asm/thread_info.h | 1 +
arch/h8300/include/asm/thread_info.h | 2 ++
arch/m68knommu/include/asm/thread_info.h | 2 ++
arch/s390/include/asm/thread_info.h | 2 ++
arch/sparc/include/asm/thread_info_32.h | 2 ++
arch/sparc/include/asm/thread_info_64.h | 2 ++
include/asm-cris/thread_info.h | 2 ++
include/asm-m68k/thread_info.h | 1 +
include/asm-parisc/thread_info.h | 2 ++
include/asm-um/thread_info.h | 2 ++
include/asm-xtensa/thread_info.h | 2 ++
12 files changed, 22 insertions(+)
diff -puN arch/alpha/include/asm/thread_info.h~container-freezer-add-tif_freeze-flag-to-all-architectures arch/alpha/include/asm/thread_info.h
--- a/arch/alpha/include/asm/thread_info.h~container-freezer-add-tif_freeze-flag-to-all-architectures
+++ a/arch/alpha/include/asm/thread_info.h
@@ -74,12 +74,14 @@ register struct thread_info *__current_t
#define TIF_UAC_SIGBUS 7
#define TIF_MEMDIE 8
#define TIF_RESTORE_SIGMASK 9 /* restore signal mask in do_signal */
+#define TIF_FREEZE 16 /* is freezing for suspend */
#define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE)
#define _TIF_SIGPENDING (1<<TIF_SIGPENDING)
#define _TIF_NEED_RESCHED (1<<TIF_NEED_RESCHED)
#define _TIF_POLLING_NRFLAG (1<<TIF_POLLING_NRFLAG)
#define _TIF_RESTORE_SIGMASK (1<<TIF_RESTORE_SIGMASK)
+#define _TIF_FREEZE (1<<TIF_FREEZE)
/* Work to do on interrupt/exception return. */
#define _TIF_WORK_MASK (_TIF_SIGPENDING | _TIF_NEED_RESCHED)
diff -puN arch/avr32/include/asm/thread_info.h~container-freezer-add-tif_freeze-flag-to-all-architectures arch/avr32/include/asm/thread_info.h
--- a/arch/avr32/include/asm/thread_info.h~container-freezer-add-tif_freeze-flag-to-all-architectures
+++ a/arch/avr32/include/asm/thread_info.h
@@ -96,6 +96,7 @@ static inline struct thread_info *curren
#define _TIF_MEMDIE (1 << TIF_MEMDIE)
#define _TIF_RESTORE_SIGMASK (1 << TIF_RESTORE_SIGMASK)
#define _TIF_CPU_GOING_TO_SLEEP (1 << TIF_CPU_GOING_TO_SLEEP)
+#define _TIF_FREEZE (1 << TIF_FREEZE)
/* Note: The masks below must never span more than 16 bits! */
diff -puN arch/h8300/include/asm/thread_info.h~container-freezer-add-tif_freeze-flag-to-all-architectures arch/h8300/include/asm/thread_info.h
--- a/arch/h8300/include/asm/thread_info.h~container-freezer-add-tif_freeze-flag-to-all-architectures
+++ a/arch/h8300/include/asm/thread_info.h
@@ -89,6 +89,7 @@ static inline struct thread_info *curren
TIF_NEED_RESCHED */
#define TIF_MEMDIE 4
#define TIF_RESTORE_SIGMASK 5 /* restore signal mask in do_signal() */
+#define TIF_FREEZE 16 /* is freezing for suspend */
/* as above, but as bit values */
#define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE)
@@ -96,6 +97,7 @@ static inline struct thread_info *curren
#define _TIF_NEED_RESCHED (1<<TIF_NEED_RESCHED)
#define _TIF_POLLING_NRFLAG (1<<TIF_POLLING_NRFLAG)
#define _TIF_RESTORE_SIGMASK (1<<TIF_RESTORE_SIGMASK)
+#define _TIF_FREEZE (1<<TIF_FREEZE)
#define _TIF_WORK_MASK 0x0000FFFE /* work to do on interrupt/exception return */
diff -puN arch/m68knommu/include/asm/thread_info.h~container-freezer-add-tif_freeze-flag-to-all-architectures arch/m68knommu/include/asm/thread_info.h
--- a/arch/m68knommu/include/asm/thread_info.h~container-freezer-add-tif_freeze-flag-to-all-architectures
+++ a/arch/m68knommu/include/asm/thread_info.h
@@ -84,12 +84,14 @@ static inline struct thread_info *curren
#define TIF_POLLING_NRFLAG 3 /* true if poll_idle() is polling
TIF_NEED_RESCHED */
#define TIF_MEMDIE 4
+#define TIF_FREEZE 16 /* is freezing for suspend */
/* as above, but as bit values */
#define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE)
#define _TIF_SIGPENDING (1<<TIF_SIGPENDING)
#define _TIF_NEED_RESCHED (1<<TIF_NEED_RESCHED)
#define _TIF_POLLING_NRFLAG (1<<TIF_POLLING_NRFLAG)
+#define _TIF_FREEZE (1<<TIF_FREEZE)
#define _TIF_WORK_MASK 0x0000FFFE /* work to do on interrupt/exception return */
diff -puN arch/s390/include/asm/thread_info.h~container-freezer-add-tif_freeze-flag-to-all-architectures arch/s390/include/asm/thread_info.h
--- a/arch/s390/include/asm/thread_info.h~container-freezer-add-tif_freeze-flag-to-all-architectures
+++ a/arch/s390/include/asm/thread_info.h
@@ -99,6 +99,7 @@ static inline struct thread_info *curren
#define TIF_31BIT 18 /* 32bit process */
#define TIF_MEMDIE 19
#define TIF_RESTORE_SIGMASK 20 /* restore signal mask in do_signal() */
+#define TIF_FREEZE 21 /* thread is freezing for suspend */
#define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE)
#define _TIF_NOTIFY_RESUME (1<<TIF_NOTIFY_RESUME)
@@ -112,6 +113,7 @@ static inline struct thread_info *curren
#define _TIF_USEDFPU (1<<TIF_USEDFPU)
#define _TIF_POLLING_NRFLAG (1<<TIF_POLLING_NRFLAG)
#define _TIF_31BIT (1<<TIF_31BIT)
+#define _TIF_FREEZE (1<<TIF_FREEZE)
#endif /* __KERNEL__ */
diff -puN arch/sparc/include/asm/thread_info_32.h~container-freezer-add-tif_freeze-flag-to-all-architectures arch/sparc/include/asm/thread_info_32.h
--- a/arch/sparc/include/asm/thread_info_32.h~container-freezer-add-tif_freeze-flag-to-all-architectures
+++ a/arch/sparc/include/asm/thread_info_32.h
@@ -135,6 +135,7 @@ BTFIXUPDEF_CALL(void, free_thread_info,
#define TIF_POLLING_NRFLAG 9 /* true if poll_idle() is polling
* TIF_NEED_RESCHED */
#define TIF_MEMDIE 10
+#define TIF_FREEZE 11 /* is freezing for suspend */
/* as above, but as bit values */
#define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE)
@@ -148,6 +149,7 @@ BTFIXUPDEF_CALL(void, free_thread_info,
#define _TIF_DO_NOTIFY_RESUME_MASK (_TIF_NOTIFY_RESUME | \
_TIF_SIGPENDING | \
_TIF_RESTORE_SIGMASK)
+#define _TIF_FREEZE (1<<TIF_FREEZE)
#endif /* __KERNEL__ */
diff -puN arch/sparc/include/asm/thread_info_64.h~container-freezer-add-tif_freeze-flag-to-all-architectures arch/sparc/include/asm/thread_info_64.h
--- a/arch/sparc/include/asm/thread_info_64.h~container-freezer-add-tif_freeze-flag-to-all-architectures
+++ a/arch/sparc/include/asm/thread_info_64.h
@@ -237,6 +237,7 @@ register struct thread_info *current_thr
#define TIF_ABI_PENDING 12
#define TIF_MEMDIE 13
#define TIF_POLLING_NRFLAG 14
+#define TIF_FREEZE 15 /* is freezing for suspend */
#define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE)
#define _TIF_NOTIFY_RESUME (1<<TIF_NOTIFY_RESUME)
@@ -249,6 +250,7 @@ register struct thread_info *current_thr
#define _TIF_SYSCALL_AUDIT (1<<TIF_SYSCALL_AUDIT)
#define _TIF_ABI_PENDING (1<<TIF_ABI_PENDING)
#define _TIF_POLLING_NRFLAG (1<<TIF_POLLING_NRFLAG)
+#define _TIF_FREEZE (1<<TIF_FREEZE)
#define _TIF_USER_WORK_MASK ((0xff << TI_FLAG_WSAVED_SHIFT) | \
_TIF_DO_NOTIFY_RESUME_MASK | \
diff -puN include/asm-cris/thread_info.h~container-freezer-add-tif_freeze-flag-to-all-architectures include/asm-cris/thread_info.h
--- a/include/asm-cris/thread_info.h~container-freezer-add-tif_freeze-flag-to-all-architectures
+++ a/include/asm-cris/thread_info.h
@@ -88,6 +88,7 @@ struct thread_info {
#define TIF_RESTORE_SIGMASK 9 /* restore signal mask in do_signal() */
#define TIF_POLLING_NRFLAG 16 /* true if poll_idle() is polling TIF_NEED_RESCHED */
#define TIF_MEMDIE 17
+#define TIF_FREEZE 18 /* is freezing for suspend */
#define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE)
#define _TIF_NOTIFY_RESUME (1<<TIF_NOTIFY_RESUME)
@@ -95,6 +96,7 @@ struct thread_info {
#define _TIF_NEED_RESCHED (1<<TIF_NEED_RESCHED)
#define _TIF_RESTORE_SIGMASK (1<<TIF_RESTORE_SIGMASK)
#define _TIF_POLLING_NRFLAG (1<<TIF_POLLING_NRFLAG)
+#define _TIF_FREEZE (1<<TIF_FREEZE)
#define _TIF_WORK_MASK 0x0000FFFE /* work to do on interrupt/exception return */
#define _TIF_ALLWORK_MASK 0x0000FFFF /* work to do on any return to u-space */
diff -puN include/asm-m68k/thread_info.h~container-freezer-add-tif_freeze-flag-to-all-architectures include/asm-m68k/thread_info.h
--- a/include/asm-m68k/thread_info.h~container-freezer-add-tif_freeze-flag-to-all-architectures
+++ a/include/asm-m68k/thread_info.h
@@ -52,5 +52,6 @@ struct thread_info {
#define TIF_DELAYED_TRACE 14 /* single step a syscall */
#define TIF_SYSCALL_TRACE 15 /* syscall trace active */
#define TIF_MEMDIE 16
+#define TIF_FREEZE 17 /* thread is freezing for suspend */
#endif /* _ASM_M68K_THREAD_INFO_H */
diff -puN include/asm-parisc/thread_info.h~container-freezer-add-tif_freeze-flag-to-all-architectures include/asm-parisc/thread_info.h
--- a/include/asm-parisc/thread_info.h~container-freezer-add-tif_freeze-flag-to-all-architectures
+++ a/include/asm-parisc/thread_info.h
@@ -58,6 +58,7 @@ struct thread_info {
#define TIF_32BIT 4 /* 32 bit binary */
#define TIF_MEMDIE 5
#define TIF_RESTORE_SIGMASK 6 /* restore saved signal mask */
+#define TIF_FREEZE 7 /* is freezing for suspend */
#define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE)
#define _TIF_SIGPENDING (1 << TIF_SIGPENDING)
@@ -65,6 +66,7 @@ struct thread_info {
#define _TIF_POLLING_NRFLAG (1 << TIF_POLLING_NRFLAG)
#define _TIF_32BIT (1 << TIF_32BIT)
#define _TIF_RESTORE_SIGMASK (1 << TIF_RESTORE_SIGMASK)
+#define _TIF_FREEZE (1 << TIF_FREEZE)
#define _TIF_USER_WORK_MASK (_TIF_SIGPENDING | \
_TIF_NEED_RESCHED | _TIF_RESTORE_SIGMASK)
diff -puN include/asm-um/thread_info.h~container-freezer-add-tif_freeze-flag-to-all-architectures include/asm-um/thread_info.h
--- a/include/asm-um/thread_info.h~container-freezer-add-tif_freeze-flag-to-all-architectures
+++ a/include/asm-um/thread_info.h
@@ -69,6 +69,7 @@ static inline struct thread_info *curren
#define TIF_MEMDIE 5
#define TIF_SYSCALL_AUDIT 6
#define TIF_RESTORE_SIGMASK 7
+#define TIF_FREEZE 16 /* is freezing for suspend */
#define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE)
#define _TIF_SIGPENDING (1 << TIF_SIGPENDING)
@@ -77,5 +78,6 @@ static inline struct thread_info *curren
#define _TIF_MEMDIE (1 << TIF_MEMDIE)
#define _TIF_SYSCALL_AUDIT (1 << TIF_SYSCALL_AUDIT)
#define _TIF_RESTORE_SIGMASK (1 << TIF_RESTORE_SIGMASK)
+#define _TIF_FREEZE (1 << TIF_FREEZE)
#endif
diff -puN include/asm-xtensa/thread_info.h~container-freezer-add-tif_freeze-flag-to-all-architectures include/asm-xtensa/thread_info.h
--- a/include/asm-xtensa/thread_info.h~container-freezer-add-tif_freeze-flag-to-all-architectures
+++ a/include/asm-xtensa/thread_info.h
@@ -134,6 +134,7 @@ static inline struct thread_info *curren
#define TIF_MEMDIE 5
#define TIF_RESTORE_SIGMASK 6 /* restore signal mask in do_signal() */
#define TIF_POLLING_NRFLAG 16 /* true if poll_idle() is polling TIF_NEED_RESCHED */
+#define TIF_FREEZE 17 /* is freezing for suspend */
#define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE)
#define _TIF_SIGPENDING (1<<TIF_SIGPENDING)
@@ -142,6 +143,7 @@ static inline struct thread_info *curren
#define _TIF_IRET (1<<TIF_IRET)
#define _TIF_POLLING_NRFLAG (1<<TIF_POLLING_NRFLAG)
#define _TIF_RESTORE_SIGMASK (1<<TIF_RESTORE_SIGMASK)
+#define _TIF_FREEZE (1<<TIF_FREEZE)
#define _TIF_WORK_MASK 0x0000FFFE /* work to do on interrupt/exception return */
#define _TIF_ALLWORK_MASK 0x0000FFFF /* work to do on any return to u-space */
_
Patches currently in -mm which might be from matthltc@xxxxxxxxxx are
origin.patch
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