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linux/arch/parisc/include/asm
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Helge Deller ae249b5fa2 parisc: fix kernel BUG at arch/parisc/include/asm/mmzone.h:50 
With CONFIG_DISCONTIGMEM=y and multiple physical memory areas,
cat /proc/kpageflags triggers this kernel bug:

kernel BUG at arch/parisc/include/asm/mmzone.h:50!
CPU: 2 PID: 7848 Comm: cat Tainted: G      D W 3.10.0-rc3-64bit #44
 IAOQ[0]: kpageflags_read0x128/0x238
 IAOQ[1]: kpageflags_read0x12c/0x238
 RP(r2): proc_reg_read0xbc/0x130
Backtrace:
 [<00000000402ca2d4>] proc_reg_read0xbc/0x130
 [<0000000040235bcc>] vfs_read0xc4/0x1d0
 [<0000000040235f0c>] SyS_read0x94/0xf0
 [<0000000040105fc0>] syscall_exit0x0/0x14

kpageflags_read() walks through the whole memory, even if some memory
areas are physically not available. So, we should better not BUG on an
unavailable pfn in pfn_to_nid() but just return the expected value -1 or
0.

Signed-off-by: Helge Deller <deller@gmx.de>
 		2013-06-01 14:28:35 +02:00
..
Kbuild tracing,x86: Add a TSC trace_clock 2012-11-13 15:48:27 -05:00
agp.h agp: kill phys_to_gart() and gart_to_phys() 2009-08-03 09:05:00 +01:00
asm-offsets.h kbuild: move asm-offsets.h to include/generated 2009-12-12 13:08:14 +01:00
asmregs.h
…
assembly.h parisc: make interrupt and interruption stack allocation reentrant 2013-05-24 22:35:36 +02:00
atomic.h parisc: implement atomic64_dec_if_positive() 2013-05-06 23:10:04 +02:00
barrier.h Disintegrate asm/system.h for PA-RISC 2012-03-28 18:30:02 +01:00
bitops.h atomic: use <linux/atomic.h> 2011-07-26 16:49:47 -07:00
bug.h [PARISC] fix missing TAINT_WARN problem 2012-06-05 14:10:17 +09:00
bugs.h
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cache.h parisc: remove homegrown L1_CACHE_ALIGN macro 2010-10-21 21:20:09 -04:00
cacheflush.h parisc: Change kunmap macro to static inline function 2013-04-25 22:36:31 +02:00
checksum.h parisc: fix ipv6 checksum 2009-01-05 19:11:05 +00:00
cmpxchg.h parisc: fix missing cmpxchg file error from system.h split 2012-04-02 14:41:26 -07:00
compat.h parisc: convert msgrcv and msgsnd syscalls to use compat layer 2013-02-20 22:56:50 +01:00
compat_ucontext.h
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current.h
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delay.h Disintegrate asm/system.h for PA-RISC 2012-03-28 18:30:02 +01:00
dma-mapping.h parisc: Provide default implementation for dma_{alloc, free}_attrs 2013-05-06 22:29:09 +02:00
dma.h Disintegrate asm/system.h for PA-RISC 2012-03-28 18:30:02 +01:00
eisa_bus.h
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eisa_eeprom.h Fix common misspellings 2011-03-31 11:26:23 -03:00
elf.h parisc: fix personality on 32bit kernel 2013-02-20 22:55:26 +01:00
fb.h
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fixmap.h parisc: rename parisc's vmalloc_start to parisc_vmalloc_start 2009-09-27 23:27:04 -04:00
floppy.h parisc: remove IRQF_DISABLED 2013-02-20 22:50:26 +01:00
ftrace.h parisc: add CALLER_ADDR{0-6} macros 2009-12-16 03:48:54 +00:00
futex.h [PARISC] futex: Use same lock set as lws calls 2012-02-27 09:35:08 -06:00
grfioctl.h
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hardirq.h parisc: fix irq stack on UP and SMP 2013-05-24 23:29:01 +02:00
hardware.h parisc: drop include of asm/pdc.h from asm/hardware.h 2012-05-10 15:12:08 -07:00
ide.h
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io.h parisc: define x->x mmio accessors 2009-03-13 01:20:48 -04:00
irq.h [PARISC] Convert to new irq_chip functions 2011-02-10 10:22:14 -06:00
irqflags.h Fix IRQ flag handling naming 2010-10-07 14:08:55 +01:00
kbdleds.h keyboard: Use BIOS Keyboard variable to set Numlock 2012-05-08 14:19:41 -07:00
kmap_types.h kmap_types: make most arches use generic header file 2009-06-16 19:47:51 -07:00
ldcw.h Disintegrate asm/system.h for PA-RISC 2012-03-28 18:30:02 +01:00
led.h
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linkage.h
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machdep.h
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mc146818rtc.h
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mckinley.h
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mmu.h
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mmu_context.h atomic: use <linux/atomic.h> 2011-07-26 16:49:47 -07:00
mmzone.h parisc: fix kernel BUG at arch/parisc/include/asm/mmzone.h:50 2013-06-01 14:28:35 +02:00
module.h Make most arch asm/module.h files use asm-generic/module.h 2012-09-28 14:31:03 +09:30
page.h parisc: fixes and cleanups in page cache flushing (1/4) 2013-02-20 22:49:19 +01:00
parisc-device.h parisc: struct device - replace bus_id with dev_name(), dev_set_name() 2008-11-26 22:22:41 +00:00
parport.h ARCH: drivers remove __dev* attributes. 2013-01-03 15:57:13 -08:00
pci.h PCI: collapse pcibios_resource_to_bus 2012-02-23 20:19:04 -07:00
pdc.h UAPI: (Scripted) Disintegrate arch/parisc/include/asm 2012-10-16 21:28:05 +01:00
pdc_chassis.h
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pdcpat.h
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perf.h
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perf_event.h irq_work: Add generic hardirq context callbacks 2010-10-18 19:58:50 +02:00
pgalloc.h
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pgtable.h parisc: use spin_lock_irqsave/spin_unlock_irqrestore for PTE updates 2013-04-25 22:37:00 +02:00
prefetch.h [PARISC] fix panic on prefetch(NULL) on PA7300LC 2012-05-16 13:15:21 +01:00
processor.h parisc: fix irq stack on UP and SMP 2013-05-24 23:29:01 +02:00
psw.h Disintegrate asm/system.h for PA-RISC 2012-03-28 18:30:02 +01:00
ptrace.h UAPI: (Scripted) Disintegrate arch/parisc/include/asm 2012-10-16 21:28:05 +01:00
ropes.h
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rt_sigframe.h
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rtc.h
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runway.h
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scatterlist.h remove needless ISA_DMA_THRESHOLD 2010-08-07 18:15:50 +02:00
sections.h
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serial.h
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shmparam.h
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signal.h Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal 2013-02-23 18:50:11 -08:00
smp.h [PARISC] Fix parisc compile failure after smp: Add task_struct argument to __cpu_up() 2012-05-25 12:35:45 +01:00
special_insns.h Disintegrate asm/system.h for PA-RISC 2012-03-28 18:30:02 +01:00
spinlock.h parisc: add missing includes in asm/spinlock.h 2012-05-10 15:12:08 -07:00
spinlock_types.h locking: Convert raw_rwlock to arch_rwlock 2009-12-14 23:55:32 +01:00
string.h
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superio.h
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switch_to.h Disintegrate asm/system.h for PA-RISC 2012-03-28 18:30:02 +01:00
syscall.h parisc: add skeleton syscall.h 2009-09-27 23:07:23 -04:00
termios.h UAPI: (Scripted) Disintegrate arch/parisc/include/asm 2012-10-16 21:28:05 +01:00
thread_info.h parisc: add kernel stack overflow check 2013-05-07 21:34:07 +02:00
timex.h Disintegrate asm/system.h for PA-RISC 2012-03-28 18:30:02 +01:00
tlb.h mm: Pass virtual address to [__]p{te,ud,md}_free_tlb() 2009-07-27 12:10:38 -07:00
tlbflush.h parisc: tlb flush counting fix for SMP and UP 2013-05-07 23:44:04 +02:00
traps.h
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uaccess.h parisc: uaccess: fix compiler warnings caused by __put_user casting 2013-04-25 22:36:42 +02:00
ucontext.h
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unaligned.h
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unistd.h consolidate cond_syscall and SYSCALL_ALIAS declarations 2013-03-03 22:55:19 -05:00
unwind.h
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