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Kyle McMartin c20a84c910 [PARISC] futex: special case cmpxchg NULL in kernel space 
Commit a0c1e9073e added code to futex.c
to detect whether futex_atomic_cmpxchg_inatomic was implemented at run
time:

+       curval = cmpxchg_futex_value_locked(NULL, 0, 0);
+       if (curval == -EFAULT)
+               futex_cmpxchg_enabled = 1;

This is bogus on parisc, since page zero in kernel virtual space is the
gateway page for syscall entry, and should not be read from the kernel.
(That, and we really don't like the kernel faulting on its own address
 space...)

Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
 		2008-03-15 19:12:17 -07:00
..
Kbuild [PARISC] Export pdc.h for palo 2007-10-18 00:58:29 -07:00
a.out.h aout: move STACK_TOP[_MAX] to asm/processor.h 2008-02-08 09:22:29 -08:00
agp.h x86: remove flush_agp_mappings() 2008-01-30 13:34:07 +01:00
asmregs.h
…
assembly.h [PARISC] convert to use CONFIG_64BIT instead of __LP64__ 2007-02-17 01:17:13 -05:00
atomic.h Add cmpxchg_local to parisc 2008-02-07 08:42:32 -08:00
auxvec.h
…
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
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byteorder.h
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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
…
compat_signal.h
…
compat_ucontext.h
…
cputime.h
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current.h
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delay.h
…
device.h Driver core: add dev_archdata to struct device 2006-12-01 14:52:01 -08:00
div64.h
…
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
…
eisa_eeprom.h
…
elf.h [PARISC] clean up include/asm-parisc/elf.h 2008-03-15 19:12:10 -07:00
emergency-restart.h
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errno.h
…
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 [PARISC] move VMALLOC_* definitions to fixmap.h 2008-03-15 19:11:49 -07:00
floppy.h cleanup floppy.h 2007-10-17 08:42:55 -07:00
futex.h [PARISC] futex: special case cmpxchg NULL in kernel space 2008-03-15 19:12:17 -07:00
grfioctl.h
…
hardirq.h
…
hardware.h [PARISC] fix section mismatches in arch/parisc/kernel 2007-05-27 13:36:27 -04:00
hw_irq.h
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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
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ioctls.h
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ipcbuf.h
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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
kdebug.h move die notifier handling to common code 2007-05-08 11:15:04 -07:00
kmap_types.h
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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
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mc146818rtc.h
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mckinley.h
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mman.h [PATCH] Remove final references to deprecated "MAP_ANON" page protection flag 2007-02-11 10:51:17 -08:00
mmu.h
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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
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namei.h
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page.h CONFIG_HIGHPTE vs. sub-page page tables. 2008-02-08 09:22:42 -08:00
param.h
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parisc-device.h [PARISC] convert to use CONFIG_64BIT instead of __LP64__ 2007-02-17 01:17:13 -05:00
parport.h
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pci.h [PARISC] parisc: "extern inline" -> "static inline" 2007-10-18 00:58:41 -07:00
pdc.h [PARISC] pdc_console: fix bizarre panic on boot 2008-03-15 19:12:03 -07:00
pdc_chassis.h
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pdcpat.h [PARISC] Remove duplicate PDC_PAT_CELL defines 2006-12-08 00:34:47 -05:00
percpu.h
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perf.h
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pgalloc.h [PARISC] unbreak pgalloc.h 2008-03-15 19:11:52 -07:00
pgtable.h [PARISC] move VMALLOC_* definitions to fixmap.h 2008-03-15 19:11:49 -07:00
poll.h Consolidate asm/poll.h 2007-05-11 08:29:34 -07:00
posix_types.h asm-*/posix_types.h: scrub __GLIBC__ 2008-02-08 09:22:34 -08:00
prefetch.h [PARISC] parisc: "extern inline" -> "static inline" 2007-10-18 00:58:41 -07:00
processor.h aout: move STACK_TOP[_MAX] to asm/processor.h 2008-02-08 09:22:29 -08:00
psw.h
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ptrace.h
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real.h
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resource.h
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ropes.h Fix misc .c/.h comment typos 2006-11-30 05:24:39 +01:00
rt_sigframe.h
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rtc.h [PARISC] fix uninitialized variable warning in asm/rtc.h 2007-10-20 13:23:00 -07:00
runway.h
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scatterlist.h parisc: fix sg_page() fallout 2007-10-23 09:49:31 +02:00
sections.h
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segment.h
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semaphore-helper.h
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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
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setup.h
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shmbuf.h [PARISC] convert to use CONFIG_64BIT instead of __LP64__ 2007-02-17 01:17:13 -05:00
shmparam.h
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sigcontext.h
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siginfo.h
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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
…
statfs.h [PATCH] use __u64 rather than u64 in parisc statfs structs 2007-02-08 18:56:57 -05:00
string.h
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superio.h
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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
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tlb.h add mm argument to pte/pmd/pud/pgd_free 2008-02-05 09:44:18 -08:00
tlbflush.h remove unused flush_tlb_pgtables 2007-10-19 11:53:34 -07:00
topology.h
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traps.h
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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
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unaligned.h
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unistd.h [PARISC] bump __NR_syscalls 2008-03-15 19:11:54 -07:00
unwind.h
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user.h
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vga.h vga.h: Fix prepocessor warning 2008-02-03 15:59:02 +02:00
xor.h
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