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Dave Hansen 8245525741 maps4: rework TASK_SIZE macros 
The following replaces the earlier patches sent.  It should address
David Rientjes's comments, and has been compile tested on all the
architectures that it touches, save for parisc.

For the /proc/<pid>/pagemap code[1], we need to able to query how
much virtual address space a particular task has.  The trick is
that we do it through /proc and can't use TASK_SIZE since it
references "current" on some arches.  The process opening the
/proc file might be a 32-bit process opening a 64-bit process's
pagemap file.

x86_64 already has a TASK_SIZE_OF() macro:

#define TASK_SIZE_OF(child)     ((test_tsk_thread_flag(child, TIF_IA32)) ? IA32_PAGE_OFFSET : TASK_SIZE64)

I'd like to have that for other architectures.  So, add it
for all the architectures that actually use "current" in
their TASK_SIZE.  For the others, just add a quick #define
in sched.h to use plain old TASK_SIZE.

1. http://www.linuxworld.com/news/2007/042407-kernel.html

- MIPS portion from Ralf Baechle <ralf@linux-mips.org>

[akpm@linux-foundation.org: fix mips build]
Signed-off-by: Dave Hansen <haveblue@us.ibm.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Matt Mackall <mpm@selenic.com>
Acked-by: David Rientjes <rientjes@google.com>
Cc: Dave Hansen <haveblue@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-05 09:44:16 -08:00
..
a.out.h arch: personality independent stack top 2007-07-19 10:04:45 -07:00
agp.h x86: remove flush_agp_mappings() 2008-01-30 13:34:07 +01:00
asmregs.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
assembly.h [PARISC] convert to use CONFIG_64BIT instead of __LP64__ 2007-02-17 01:17:13 -05:00
atomic.h atomic.h: atomic_add_unless as inline. Remove system.h atomic.h circular dependency 2007-05-08 11:15:20 -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
bug.h Fix WARN_ON() on bitfield ops for all other archs 2007-08-01 20:45:38 -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 [PARISC] Clean up the cache and tlb headers 2007-02-17 00:41:30 -05:00
cacheflush.h [PARISC] Add prototypes for flush_user_dcache_range and flush_user_icache_range 2007-02-17 00:43:51 -05:00
checksum.h [NET]: PARISC checksum annotations and cleanups. 2006-12-02 21:23:10 -08:00
compat.h asm-*/compat.h: fix typo in comment 2008-02-03 16:32:51 +02:00
compat_rt_sigframe.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
compat_signal.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
compat_ucontext.h [PARISC] Arch-specific compat signals 2006-01-22 20:57:42 -05:00
cputime.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
current.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
delay.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
device.h Driver core: add dev_archdata to struct device 2006-12-01 14:52:01 -08:00
div64.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
dma-mapping.h [PARISC] Fix ccio_request_resource when CONFIG_IOMMU_CCIO is not defined 2006-12-08 00:33:59 -05:00
dma.h Fix misc .c/.h comment typos 2006-11-30 05:24:39 +01:00
eisa_bus.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
eisa_eeprom.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
elf.h include/asm-parisc/: Spelling fixes 2008-02-03 17:00:11 +02:00
emergency-restart.h [PATCH] Add emergency_restart() 2005-07-26 14:35:41 -07:00
errno.h [PARISC] Add ECANCELED to errno.h 2005-10-21 22:53:43 -04:00
fb.h fbdev: detect primary display device 2007-07-17 10:23:11 -07:00
fcntl.h Introduce O_CLOEXEC 2007-07-16 09:05:45 -07:00
fixmap.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
floppy.h cleanup floppy.h 2007-10-17 08:42:55 -07:00
futex.h [PATCH] mm: pagefault_{disable,enable}() 2006-12-07 08:39:21 -08:00
grfioctl.h [PARISC] Use kzalloc and other janitor-style cleanups 2006-01-22 20:26:31 -05:00
hardirq.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
hardware.h [PARISC] fix section mismatches in arch/parisc/kernel 2007-05-27 13:36:27 -04:00
hw_irq.h [PATCH] genirq: add ->retrigger() irq op to consolidate hw_irq_resend() 2006-06-29 10:26:23 -07:00
ide.h ide: add CONFIG_IDE_ARCH_OBSOLETE_INIT 2007-10-20 00:32:32 +02:00
io.h [PARISC] parisc: "extern inline" -> "static inline" 2007-10-18 00:58:41 -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 [PARISC] Allow nested interrupts 2006-10-04 06:48:57 -06:00
irq_regs.h Build fixes for struct pt_regs removal 2006-10-06 20:47:23 -06:00
Kbuild [PARISC] Export pdc.h for palo 2007-10-18 00:58:29 -07:00
kdebug.h move die notifier handling to common code 2007-05-08 11:15:04 -07:00
kmap_types.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
led.h [PARISC] Convert soft power switch driver to kthread 2007-02-17 01:03:43 -05:00
linkage.h include/asm-parisc/: Spelling fixes 2008-02-03 17:00:11 +02:00
local.h local_t: parisc cleanup 2007-05-08 11:15:20 -07:00
machdep.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
mc146818rtc.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
mckinley.h [PARISC] Add asm-parisc/mckinley.h bus header 2006-10-04 06:45:48 -06:00
mman.h [PATCH] Remove final references to deprecated "MAP_ANON" page protection flag 2007-02-11 10:51:17 -08:00
mmu.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
mmu_context.h Detach sched.h from mm.h 2007-05-21 09:18:19 -07:00
mmzone.h [PARISC] convert to use CONFIG_64BIT instead of __LP64__ 2007-02-17 01:17:13 -05:00
module.h [PARISC] convert to use CONFIG_64BIT instead of __LP64__ 2007-02-17 01:17:13 -05:00
msgbuf.h [PARISC] convert to use CONFIG_64BIT instead of __LP64__ 2007-02-17 01:17:13 -05:00
mutex.h [PATCH] mutex subsystem, add default include/asm-*/mutex.h files 2006-01-09 15:59:19 -08:00
namei.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
page.h [PARISC] Kill off ASM_PAGE_SIZE use 2007-10-18 00:59:15 -07:00
param.h [PARISC] Use CONFIG_HZ to determine interval timer rate (aka clock ticks) 2006-10-04 06:47:46 -06:00
parisc-device.h [PARISC] convert to use CONFIG_64BIT instead of __LP64__ 2007-02-17 01:17:13 -05:00
parport.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
pci.h [PARISC] parisc: "extern inline" -> "static inline" 2007-10-18 00:58:41 -07:00
pdc.h [PARISC] print more than one character at a time for pdc console 2007-12-06 09:32:15 -08:00
pdc_chassis.h [PARISC] Clarify pdc_stable license terms 2006-03-30 17:48:41 +00:00
pdcpat.h [PARISC] Remove duplicate PDC_PAT_CELL defines 2006-12-08 00:34:47 -05:00
percpu.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
perf.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
pgalloc.h [PARISC] convert to use CONFIG_64BIT instead of __LP64__ 2007-02-17 01:17:13 -05:00
pgtable.h Merge branch 'master' of hera.kernel.org:/pub/scm/linux/kernel/git/kyle/parisc-2.6 2007-10-20 20:19:15 -07:00
poll.h Consolidate asm/poll.h 2007-05-11 08:29:34 -07:00
posix_types.h [PARISC] convert to use CONFIG_64BIT instead of __LP64__ 2007-02-17 01:17:13 -05:00
prefetch.h [PARISC] parisc: "extern inline" -> "static inline" 2007-10-18 00:58:41 -07:00
processor.h maps4: rework TASK_SIZE macros 2008-02-05 09:44:16 -08:00
psw.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
ptrace.h [PARISC] Take into account nullified insn and lock functions for profiling 2005-10-21 22:42:18 -04:00
real.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
resource.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ropes.h Fix misc .c/.h comment typos 2006-11-30 05:24:39 +01:00
rt_sigframe.h [PARISC] Arch-specific compat signals 2006-01-22 20:57:42 -05:00
rtc.h [PARISC] fix uninitialized variable warning in asm/rtc.h 2007-10-20 13:23:00 -07:00
runway.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
scatterlist.h parisc: fix sg_page() fallout 2007-10-23 09:49:31 +02:00
sections.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
segment.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
semaphore-helper.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
semaphore.h [PARISC] parisc: "extern inline" -> "static inline" 2007-10-18 00:58:41 -07:00
sembuf.h [PARISC] convert to use CONFIG_64BIT instead of __LP64__ 2007-02-17 01:17:13 -05:00
serial.h [PARISC] Clean up asm-parisc/serial.h 2006-10-04 06:47:03 -06:00
setup.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
shmbuf.h [PARISC] convert to use CONFIG_64BIT instead of __LP64__ 2007-02-17 01:17:13 -05:00
shmparam.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
sigcontext.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 [PARISC] convert to use CONFIG_64BIT instead of __LP64__ 2007-02-17 01:17:13 -05:00
smp.h [PARISC] kill ENTRY_SYS_CPUS 2007-02-17 01:11:41 -05:00
socket.h [NET]: Introducing socket mark socket option. 2008-01-31 19:27:19 -08:00
sockios.h [NET]: Introduce SIOCGSTAMPNS ioctl to get timestamps with nanosec resolution 2007-04-25 22:24:04 -07:00
spinlock.h [PARISC] Enable interrupts while spinning 2006-10-04 06:48:17 -06:00
spinlock_types.h [PARISC] "Fix" circular includes 2007-02-17 00:43:10 -05:00
stat.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
statfs.h [PATCH] use __u64 rather than u64 in parisc statfs structs 2007-02-08 18:56:57 -05:00
string.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
superio.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
system.h [PATCH] sched: sched_cacheflush is now unused 2007-07-19 21:28:35 +02:00
termbits.h lots-of-architectures: enable arbitary speed tty support 2007-07-10 17:51:13 -07:00
termios.h [PATCH] consolidate line discipline number definitions 2007-02-11 10:51:26 -08:00
thread_info.h remove unused TIF_NOTIFY_RESUME flag 2007-07-31 15:39:38 -07:00
timex.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
tlb.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -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
traps.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
types.h remove strict ansi check from __u64 in asm/types.h 2007-10-17 08:42:53 -07:00
uaccess.h [PARISC] add ASM_EXCEPTIONTABLE_ENTRY() macro 2007-02-17 01:16:26 -05:00
ucontext.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
unaligned.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
unistd.h [PARISC] Wire up sys_fallocate (and compat_sys_fallocate) 2007-10-18 00:58:26 -07:00
unwind.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
user.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
vga.h vga.h: Fix prepocessor warning 2008-02-03 15:59:02 +02:00
xor.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00