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Laurent Dufour 2ae416b142 mm: new mm hook framework 
CRIU is recreating the process memory layout by remapping the checkpointee
memory area on top of the current process (criu).  This includes remapping
the vDSO to the place it has at checkpoint time.

However some architectures like powerpc are keeping a reference to the
vDSO base address to build the signal return stack frame by calling the
vDSO sigreturn service.  So once the vDSO has been moved, this reference
is no more valid and the signal frame built later are not usable.

This patch serie is introducing a new mm hook framework, and a new
arch_remap hook which is called when mremap is done and the mm lock still
hold.  The next patch is adding the vDSO remap and unmap tracking to the
powerpc architecture.

This patch (of 3):

This patch introduces a new set of header file to manage mm hooks:
- per architecture empty header file (arch/x/include/asm/mm-arch-hooks.h)
- a generic header (include/linux/mm-arch-hooks.h)

The architecture which need to overwrite a hook as to redefine it in its
header file, while architecture which doesn't need have nothing to do.

The default hooks are defined in the generic header and are used in the
case the architecture is not defining it.

In a next step, mm hooks defined in include/asm-generic/mm_hooks.h should
be moved here.

Signed-off-by: Laurent Dufour <ldufour@linux.vnet.ibm.com>
Suggested-by: Andrew Morton <akpm@linux-foundation.org>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Pavel Emelyanov <xemul@parallels.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 		2015-06-24 17:49:41 -07:00
..
Kbuild m68k: Switch to asm-generic/futex.h 2015-01-11 11:38:45 +01:00
MC68EZ328.h m68k: fix comment typo 'occcured' 2011-04-10 17:01:05 +02:00
MC68VZ328.h m68k: fix comment typo 'occcured' 2011-04-10 17:01:05 +02:00
MC68328.h m68knommu: fix MC68328.h defines 2013-03-04 11:08:50 +10:00
a.out-core.h
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adb_iop.h
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amigahw.h m68k/UAPI: Move Amiga model/chipset definitions to <asm/bootinfo-amiga.h> 2013-11-26 11:09:17 +01:00
amigaints.h
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amigayle.h m68k: amiga - Amiga Gayle IDE platform device conversion 2010-05-26 19:51:09 +02:00
amipcmcia.h
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apollohw.h m68k/UAPI: Move Apollo model definitions to <asm/bootinfo-apollo.h> 2013-11-26 11:09:18 +01:00
asm-offsets.h kbuild: move asm-offsets.h to include/generated 2009-12-12 13:08:14 +01:00
atafd.h
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atafdreg.h
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atari_joystick.h
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atari_stdma.h atari_scsi: Fix atari_scsi deadlocks on Falcon 2014-11-20 09:11:13 +01:00
atari_stram.h m68k/atari - stram: alloc ST-RAM pool even if kernel not in ST-RAM 2014-05-26 22:41:24 +02:00
atarihw.h m68k/UAPI: Disintegrate arch/m68k/include/asm/bootinfo.h 2013-11-26 11:09:15 +01:00
atariints.h m68k/atari: Remove obsolete IRQ_TYPE_* 2015-01-15 13:44:51 +01:00
atarikb.h input/atari: Use the correct mouse interrupt hook 2011-05-19 18:19:11 +02:00
atomic.h locking,arch: Use ACCESS_ONCE() instead of cast to volatile in atomic_read() 2014-10-03 06:06:23 +02:00
bitops.h arch,m68k: Convert smp_mb__*() 2014-04-18 14:20:37 +02:00
blinken.h m68k/hp300: Export hp300_ledstate 2011-12-10 19:52:48 +01:00
bootinfo.h m68k: Add support to export bootinfo in procfs 2013-12-08 11:01:48 +01:00
bootstd.h Fix common misspellings 2011-03-31 11:26:23 -03:00
bug.h
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bugs.h
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bvme6000hw.h
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cache.h dma-mapping: rename ARCH_KMALLOC_MINALIGN to ARCH_DMA_MINALIGN 2010-08-11 08:59:21 -07:00
cacheflush.h UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers 2012-10-02 18:01:25 +01:00
cacheflush_mm.h m68k: fix ColdFire clear cache operation 2012-07-17 15:49:34 +10:00
cacheflush_no.h m68knommu: use "r", not "i" constraint in cacheflush asm's 2012-09-27 23:28:40 +10:00
checksum.h m68k: simpler m68k and ColdFire CPU's can use generic csum code 2011-12-24 21:47:57 +10:00
cmpxchg.h arch: Remove __ARCH_HAVE_CMPXCHG 2015-05-13 10:55:42 +02:00
coldfire.h m68knommu: remove ColdFire CLOCK_DIV config option 2011-03-15 21:01:57 +10:00
commproc.h m68knommu: fix irq handler types in 68360/commproc.c 2015-02-03 14:16:23 +10:00
contregs.h
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current.h
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delay.h m68k: Implement ndelay() based on the existing udelay() logic 2013-04-16 21:35:40 +02:00
div64.h m68k: Truncate base in do_div() 2013-08-14 11:46:30 +02:00
dma-mapping.h m68k: Sort out !CONFIG_MMU_SUN3 vs. CONFIG_HAS_DMA 2013-02-09 14:23:36 +01:00
dma.h m68knommu: create and use a common M53xx ColdFire class of CPUs 2013-04-29 09:17:58 +10:00
dsp56k.h
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dvma.h
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elf.h default SET_PERSONALITY() in linux/elf.h 2013-02-26 02:46:08 -05:00
entry.h m68k: Correct the Atari ALLOWINT definition 2012-04-22 20:16:50 +02:00
fb.h
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fbio.h tree-wide: s/widht/width/g typo in comments 2010-02-05 12:22:42 +01:00
flat.h m68k: fix compiler warning by properly inlining flat_set_persistent() 2012-05-20 21:21:33 +10:00
floppy.h m68k: Remove deprecated IRQF_DISABLED 2013-09-26 09:54:16 +02:00
fpu.h m68k: add ColdFire FPU support for the V4e ColdFire CPUs 2011-12-30 10:20:47 +10:00
ftrace.h
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gpio.h m68k: only use local gpio_request_one if not using GPIOLIB 2013-05-29 16:56:45 +10:00
hardirq.h hardirq: Make hardirq bits generic 2013-11-13 20:21:46 +01:00
hp300hw.h m68k/UAPI: Move HP300 model definitions to <asm/bootinfo-hp300.h> 2013-11-26 11:09:19 +01:00
hwtest.h
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ide.h m68knommu: arch/m68k/include/asm/ide.h fix for nommu 2010-08-18 12:44:31 +10:00
idprom.h
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intersil.h
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io.h m68k: io: implement dummy relaxed accessor macros for writes 2014-10-20 18:49:18 +01:00
io_mm.h video/fbdev, asm/io.h: Remove ioremap_writethrough() 2015-06-07 15:28:57 +02:00
io_no.h video/fbdev, asm/io.h: Remove ioremap_writethrough() 2015-06-07 15:28:57 +02:00
irq.h m68k/atari: EtherNAT - platform device and IRQ support code 2013-04-16 21:18:29 +02:00
irqflags.h sched/preempt: Merge preempt_mask.h into preempt.h 2015-05-19 08:39:11 +02:00
kexec.h m68k: Add kexec support 2013-12-08 11:01:47 +01:00
linkage.h
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m52xxacr.h m68knommu: create optimal separate instruction and data cache for ColdFire 2011-01-05 15:19:20 +10:00
m53xxacr.h m68knommu: create and use a common M53xx ColdFire class of CPUs 2013-04-29 09:17:58 +10:00
m53xxsim.h m68knommu: fix ColdFire 5373/5329 QSPI base address 2013-04-29 09:17:59 +10:00
m54xxacr.h m68k: Set ColdFire ACR1 cache mode depending on kernel configuration 2013-04-29 09:17:57 +10:00
m54xxgpt.h m68knommu: clean up ColdFire 54xx General Timer definitions 2012-09-27 23:34:03 +10:00
m54xxpci.h m68k: Fix typo 'COFNIG_MBAR' 2014-09-29 09:56:19 +10:00
m54xxsim.h m68knommu: Implement gpio support for m54xx. 2014-05-26 13:28:38 +10:00
m520xsim.h m68knommu: Add clk definitions for m520x. 2012-07-16 09:59:22 +10:00
m523xsim.h m68knommu: fix inconsistent formating in ColdFire 523x definitions 2012-09-27 23:34:04 +10:00
m525xsim.h m68knommu: Fix the 5249/525x qspi base address. 2014-05-26 13:28:37 +10:00
m527xsim.h m68knommu: ColdFire 5271 only has a single FEC controller 2015-03-30 09:52:24 +10:00
m528xsim.h m68knommu: remove unused ColdFire 5282 register definitions 2012-09-27 23:33:55 +10:00
m5206sim.h m68knommu: make ColdFire Chip Select register definitions absolute addresses 2012-09-27 23:33:51 +10:00
m5272sim.h m68knommu: fix inconsistent formating in ColdFire 5272 definitions 2012-09-27 23:34:05 +10:00
m5307sim.h m68knommu: fix inconsistent formating in ColdFire 5307 definitions 2012-09-27 23:34:07 +10:00
m5407sim.h m68knommu: fix inconsistent formating in ColdFire 5407 definitions 2012-09-27 23:34:08 +10:00
m5441xsim.h m68knommu: Add rtc device for m5441x. 2012-07-16 09:59:21 +10:00
m68360.h UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers 2012-10-02 18:01:25 +01:00
m68360_enet.h UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers 2012-10-02 18:01:25 +01:00
m68360_pram.h m68k: Fix trivial typos in comments 2015-03-30 09:52:24 +10:00
m68360_quicc.h Fix common misspellings 2011-03-31 11:26:23 -03:00
m68360_regs.h
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mac_asc.h
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mac_baboon.h m68k/mac: cleanup forward declarations 2011-12-10 19:52:46 +01:00
mac_iop.h m68k/mac: cleanup forward declarations 2011-12-10 19:52:46 +01:00
mac_oss.h m68k/mac: oss irq fixes 2011-12-10 19:52:47 +01:00
mac_psc.h m68k/mac: cleanup forward declarations 2011-12-10 19:52:46 +01:00
mac_via.h m68k: Fix build warning in mac_via.h 2014-01-16 09:27:02 +01:00
machdep.h m68k: set arch_gettimeoffset directly 2012-12-24 09:36:34 -07:00
machines.h
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machw.h mac68k: replace mac68k SCC code with platform device 2010-02-27 18:31:09 +01:00
macintosh.h m68k/mac: Fix scsi_type for Mac LC and similar models 2015-01-11 11:38:46 +01:00
macints.h m68k/mac: oss irq fixes 2011-12-10 19:52:47 +01:00
math-emu.h locking, m68k/asm-offsets: Rename pt_regs offset defines 2009-08-31 18:08:49 +02:00
mc146818rtc.h m68k/atari: Hide RTC_PORT() macro from rtc-cmos 2013-12-08 11:03:22 +01:00
mcf8390.h net: add support for NS8390 based eth controllers on some ColdFire CPU boards 2012-07-12 07:54:45 -07:00
mcf_pgalloc.h m68k: handle pgtable_page_ctor() fail 2013-11-15 09:32:17 +09:00
mcf_pgtable.h m68k: drop _PAGE_FILE and pte_file()-related helpers 2015-02-10 14:30:32 -08:00
mcfclk.h m68knommu: add clock creation support macro for other ColdFire CPUs 2012-12-05 10:51:24 +10:00
mcfdma.h m68knommu: move ColdFire DMA register addresses to per-cpu headers 2011-03-15 21:01:54 +10:00
mcfgpio.h m68knommu: Implement gpio support for m54xx. 2014-05-26 13:28:38 +10:00
mcfintc.h m68knommu: map ColdFire interrupts to correct masking bits 2009-09-16 09:43:52 +10:00
mcfmmu.h m68k: ColdFire V4e MMU paging init code and miss handler 2011-12-30 10:20:38 +10:00
mcfpit.h m68knommu: move ColdFire PIT timer base addresses 2011-03-15 21:01:54 +10:00
mcfqspi.h m68k: Remove FSF address 2015-03-15 10:23:30 +01:00
mcfsim.h m68knommu: create and use a common M53xx ColdFire class of CPUs 2013-04-29 09:17:58 +10:00
mcfslt.h m68knommu: move ColdFire slice timer address defiens to 54xx header 2012-09-27 23:34:01 +10:00
mcftimer.h m68knommu: create and use a common M53xx ColdFire class of CPUs 2013-04-29 09:17:58 +10:00
mcfuart.h m68knommu: Add support for the Coldfire 5251/5253 2012-07-16 09:59:21 +10:00
mcfwdebug.h
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mm-arch-hooks.h mm: new mm hook framework 2015-06-24 17:49:41 -07:00
mmu.h
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mmu_context.h m68k: ColdFire V4e MMU context support code 2011-12-30 10:20:34 +10:00
mmzone.h
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module.h Make most arch asm/module.h files use asm-generic/module.h 2012-09-28 14:31:03 +09:30
motorola_pgalloc.h m68k: handle pgtable_page_ctor() fail 2013-11-15 09:32:17 +09:00
motorola_pgtable.h m68k: drop _PAGE_FILE and pte_file()-related helpers 2015-02-10 14:30:32 -08:00
movs.h
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mvme16xhw.h m68k/UAPI: Move VME Board ID definition to <asm/bootinfo-vme.h> 2013-11-26 11:09:21 +01:00
mvme147hw.h
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natfeat.h m68k/atari: Initial ARAnyM support 2011-03-16 19:10:41 +01:00
nettel.h m68knommu: fix wrong register offsets used for ColdFire 5272 multi-function pins 2012-09-27 23:33:54 +10:00
nubus.h
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openprom.h
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oplib.h
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page.h m68k: define 'VM_DATA_DEFAULT_FLAGS' no matter whether has 'NOMMU' or not 2013-08-26 16:51:14 +10:00
page_mm.h m68k: define 'VM_DATA_DEFAULT_FLAGS' no matter whether has 'NOMMU' or not 2013-08-26 16:51:14 +10:00
page_no.h m68knommu: make non-MMU page_to_virt() return a void * 2012-12-05 10:51:22 +10:00
page_offset.h m68k: define PAGE_OFFSET_RAW for ColdFire CPU with MMU enabled 2011-12-30 10:20:31 +10:00
parport.h m68k/q40: Undefine insl/outsl before redefining them 2013-06-24 19:44:19 +02:00
pci.h m68k: common PCI support definitions and code 2012-07-17 15:49:41 +10:00
pgalloc.h m68k: create ColdFire MMU pgalloc code 2011-12-30 10:20:40 +10:00
pgtable.h UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers 2012-10-02 18:01:25 +01:00
pgtable_mm.h mm: add missing __PAGETABLE_{PUD,PMD}_FOLDED defines 2015-02-28 09:57:51 -08:00
pgtable_no.h m68k: drop _PAGE_FILE and pte_file()-related helpers 2015-02-10 14:30:32 -08:00
processor.h arch, locking: Ciao arch_mutex_cpu_relax() 2014-07-17 12:32:47 +02:00
ptrace.h new helper: current_user_stack_pointer() 2012-12-19 18:07:39 -05:00
q40_master.h UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers 2012-10-02 18:01:25 +01:00
q40ints.h m68k/irq: Remove obsolete m68k irq framework 2011-11-08 22:35:52 +01:00
quicc_simple.h
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raw_io.h m68k/atari: ROM port ISA adapter support 2013-04-16 21:08:11 +02:00
rtc.h
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segment.h m68k: macro whitespace fixes 2015-01-13 15:24:03 +02:00
serial.h m68k/serial: SERIAL_PORT_DFNS only if CONFIG_ISA 2011-12-10 19:52:45 +01:00
setup.h m68k/UAPI: Move generic definitions to <asm/bootinfo.h> 2013-11-26 11:09:16 +01:00
signal.h signals: kill sigfindinword() 2014-06-06 16:08:11 -07:00
smp.h
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string.h m68k: Remove inline strcpy() and strcat() implementations 2013-06-24 19:44:18 +02:00
sun3-head.h
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sun3_pgalloc.h m68k/sun3: Remove define statement no longer needed 2014-07-26 17:48:34 +02:00
sun3_pgtable.h m68k: drop _PAGE_FILE and pte_file()-related helpers 2015-02-10 14:30:32 -08:00
sun3ints.h
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sun3mmu.h
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sun3x.h
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sun3xflop.h m68k: Remove deprecated IRQF_DISABLED 2013-09-26 09:54:16 +02:00
sun3xprom.h
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switch_to.h Disintegrate asm/system.h for M68K 2012-03-28 18:30:02 +01:00
thread_info.h m68k: Remove signal translation and exec_domain 2015-04-12 20:58:25 +02:00
timex.h m68k: Add infrastructure for machine-specific random_get_entropy() 2013-11-26 11:09:24 +01:00
tlb.h
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tlbflush.h m68k: add TLB flush support for the ColdFire V4e MMU hardware 2011-12-30 10:20:30 +10:00
traps.h m68k: print memory layout info in boot log 2011-12-24 21:47:57 +10:00
uaccess.h m68k/m68knommu: Implement __get_user_unaligned/__put_user_unaligned() 2013-09-10 11:06:17 +02:00
uaccess_mm.h m68k/uaccess: fix sparse errors 2015-01-13 15:23:28 +02:00
uaccess_no.h
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ucontext.h m68k: make fp register stores consistent for m68k and ColdFire 2011-12-24 21:47:57 +10:00
unaligned.h m68k: Introduce config option CPU_HAS_NO_UNALIGNED 2012-06-10 10:18:32 +02:00
unistd.h m68k: Wire up execveat 2015-01-11 11:14:14 +01:00
user.h
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vga.h m68k/video: Create <asm/vga.h> 2012-04-22 20:16:50 +02:00
virtconvert.h m68knommu: Correct page_to_phys when PAGE_OFFSET is non-zero. 2014-06-20 15:11:20 +10:00
zorro.h
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