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linux/include/asm-generic
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David Miller 2679494246 mm: Fix generic hugetlb pte check return type. 
The include/asm-generic/hugetlb.h stubs that just vector huge_pte_*()
calls to the pte_*() implementations won't work in certain situations.

x86 and sparc, for example, return "unsigned long" from the bit
checks, and just go "return pte_val(pte) & PTE_BIT_FOO;"

But since huge_pte_*() returns 'int', if any high bits on 64-bit are
relevant, they get chopped off.

The net effect is that we can loop forever trying to COW a huge page,
because the huge_pte_write() check signals false all the time.

Reported-by: Gurudas Pai <gurudas.pai@oracle.com>
Tested-by: Gurudas Pai <gurudas.pai@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: David Rientjes <rientjes@google.com>
2013-10-02 20:02:35 -04:00
..
bitops
Merge branch 'modules-next' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux
2012-10-14 13:39:34 -07:00
4level-fixup.h
…
atomic64.h
…
atomic-long.h
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atomic.h
asm-generic: move cmpxchg*_local defs to cmpxchg.h
2013-03-13 06:11:05 +01:00
audit_change_attr.h
audit: support the "standard" <asm-generic/unistd.h>
2011-05-04 14:41:28 -04:00
audit_dir_write.h
audit: support the "standard" <asm-generic/unistd.h>
2011-05-04 14:41:28 -04:00
audit_read.h
audit: support the "standard" <asm-generic/unistd.h>
2011-05-04 14:41:28 -04:00
audit_signal.h
…
audit_write.h
audit: support the "standard" <asm-generic/unistd.h>
2011-05-04 14:41:28 -04:00
barrier.h
Create asm-generic/barrier.h
2012-03-28 18:30:03 +01:00
bitops.h
bitops: remove minix bitops from asm/bitops.h
2011-03-23 19:46:22 -07:00
bitsperlong.h
UAPI: (Scripted) Disintegrate include/asm-generic
2012-10-04 18:20:15 +01:00
bug.h
bug.h: Fix up CONFIG_BUG=n implicit function declarations.
2012-06-25 10:32:49 -07:00
bugs.h
…
cache.h
…
cacheflush.h
asm-generic/cacheflush.h: flush icache when copying to user pages
2011-05-25 08:39:37 -07:00
checksum.h
asm-generic headers: Allow yet more arch overrides in checksum.h
2013-02-11 20:00:33 +05:30
clkdev.h
asm-generic: Add default clkdev.h
2012-10-03 21:33:53 +02:00
cmpxchg-local.h
generic: Use raw local irq variant for generic cmpxchg
2013-02-19 08:43:37 +01:00
cmpxchg.h
asm-generic: move cmpxchg*_local defs to cmpxchg.h
2013-03-13 06:11:05 +01:00
cputime_jiffies.h
cputime: Move default nsecs_to_cputime() to jiffies based cputime file
2013-01-27 19:23:25 +01:00
cputime_nsecs.h
cputime_nsecs: use math64.h for nsec resolution conversion helpers
2013-04-26 18:58:12 +02:00
cputime.h
cputime: Generic on-demand virtual cputime accounting
2013-01-27 19:23:27 +01:00
current.h
…
delay.h
asm-generic: delay.h fix udelay and ndelay for 8 bit args
2011-07-22 18:45:33 +02:00
device.h
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div64.h
…
dma-coherent.h
common: dma-mapping: add support for generic dma_mmap_* calls
2012-07-30 12:25:46 +02:00
dma-mapping-broken.h
asm-generic/dma-mapping-broken.h: Provide dma_alloc_attrs()/dma_free_attrs()
2012-12-25 20:14:54 +01:00
dma-mapping-common.h
common: dma-mapping: introduce dma_get_sgtable() function
2012-07-30 12:25:46 +02:00
dma.h
…
emergency-restart.h
…
exec.h
Split arch_align_stack() out from asm-generic/system.h
2012-03-28 18:30:03 +01:00
fb.h
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ftrace.h
asm-generic headers: add ftrace.h
2011-03-17 09:19:04 +08:00
futex.h
futex: Sanitize futex ops argument types
2011-03-11 12:23:31 +01:00
getorder.h
bitops: Add missing parentheses to new get_order macro
2012-02-24 10:39:27 -08:00
gpio.h
gpiolib: let gpio_chip reference its descriptors
2013-02-11 22:21:28 +00:00
hardirq.h
Fix IRQ flag handling naming
2010-10-07 14:08:55 +01:00
hugetlb.h
mm: Fix generic hugetlb pte check return type.
2013-10-02 20:02:35 -04:00
hw_irq.h
…
ide_iops.h
…
int-l64.h
UAPI: (Scripted) Disintegrate include/asm-generic
2012-10-04 18:20:15 +01:00
int-ll64.h
UAPI: (Scripted) Disintegrate include/asm-generic
2012-10-04 18:20:15 +01:00
io-64-nonatomic-hi-lo.h
asm-generic: architecture independent readq/writeq for 32bit environment
2012-02-21 16:47:28 -08:00
io-64-nonatomic-lo-hi.h
asm-generic: architecture independent readq/writeq for 32bit environment
2012-02-21 16:47:28 -08:00
io.h
kernel: Fix s390 absolute memory access for /dev/mem
2013-05-22 09:45:57 +02:00
ioctl.h
UAPI: (Scripted) Disintegrate include/asm-generic
2012-10-04 18:20:15 +01:00
iomap.h
[PARISC] fix compile break caused by iomap: make IOPORT/PCI mapping functions conditional
2012-02-27 09:43:30 -06:00
irq_regs.h
core: Replace __get_cpu_var with __this_cpu_read if not used for an address.
2010-12-17 15:07:19 +01:00
irq.h
…
irqflags.h
Fix IRQ flag handling naming
2010-10-07 14:08:55 +01:00
Kbuild.asm
UAPI: Set up uapi/asm/Kbuild.asm
2012-10-02 18:01:56 +01:00
kdebug.h
asm-generic: kdebug.h: Checkpatch cleanup
2010-10-09 21:51:44 +02:00
kmap_types.h
asm-generic: remove km_type definitions
2012-07-24 15:27:30 +08:00
kvm_para.h
KVM: add kvm_para_available to asm-generic/kvm_para.h
2013-06-05 13:21:29 +03:00
libata-portmap.h
…
linkage.h
…
local64.h
atomic: use <linux/atomic.h>
2011-07-26 16:49:47 -07:00
local.h
atomic: use <linux/atomic.h>
2011-07-26 16:49:47 -07:00
memory_model.h
mm: fix __page_to_pfn for a const struct page argument
2011-08-17 13:00:20 -07:00
mm_hooks.h
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mmu_context.h
…
mmu.h
asm-generic/mmu.h: Add support for FDPIC
2012-12-09 23:14:14 +01:00
module.h
Make most arch asm/module.h files use asm-generic/module.h
2012-09-28 14:31:03 +09:30
mutex-dec.h
arch: Make __mutex_fastpath_lock_retval return whether fastpath succeeded or not
2013-06-26 12:10:55 +02:00
mutex-null.h
arch: Make __mutex_fastpath_lock_retval return whether fastpath succeeded or not
2013-06-26 12:10:55 +02:00
mutex-xchg.h
arch: Make __mutex_fastpath_lock_retval return whether fastpath succeeded or not
2013-06-26 12:10:55 +02:00
mutex.h
…
page.h
The following changes since commit 3ee72ca99288f1de95ec9c570e43f531c8799f06
2012-01-10 17:39:40 -08:00
param.h
UAPI: (Scripted) Disintegrate include/asm-generic
2012-10-04 18:20:15 +01:00
parport.h
include: remove __dev* attributes.
2013-01-03 15:57:16 -08:00
pci_iomap.h
[PARISC] fix compile break caused by iomap: make IOPORT/PCI mapping functions conditional
2012-02-27 09:43:30 -06:00
pci-bridge.h
PCI: work around Stratus ftServer broken PCIe hierarchy
2012-04-30 15:21:02 -06:00
pci-dma-compat.h
dma-mapping: pci: move pci_set_dma_mask and pci_set_consistent_dma_mask to pci-dma-compat.h
2010-03-12 15:52:42 -08:00
pci.h
PCI: collapse pcibios_resource_to_bus
2012-02-23 20:19:04 -07:00
percpu.h
percpu: Optimize __get_cpu_var()
2010-09-10 10:56:51 +02:00
pgalloc.h
…
pgtable-nopmd.h
…
pgtable-nopud.h
…
pgtable.h
s390/mm: implement software referenced bits
2013-08-29 13:20:11 +02:00
ptrace.h
asm-generic/ptrace.h: start a common low level ptrace helper
2011-05-26 17:12:36 -07:00
resource.h
UAPI: (Scripted) Disintegrate include/asm-generic
2012-10-04 18:20:15 +01:00
rtc.h
…
rwsem.h
Hexagon: Add locking types and functions
2011-11-01 07:34:20 -07:00
scatterlist.h
asm-generic: remove ARCH_HAS_SG_CHAIN in scatterlist.h
2010-05-27 09:12:54 -07:00
sections.h
vmlinux.lds: add comments for global variables and clean up useless declarations
2013-07-03 16:07:34 -07:00
segment.h
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serial.h
…
siginfo.h
UAPI: (Scripted) Disintegrate include/asm-generic
2012-10-04 18:20:15 +01:00
signal.h
unify default ptrace_signal_deliver
2012-11-29 00:01:23 -05:00
sizes.h
ARM: 7430/1: sizes.h: move from asm-generic to <linux/sizes.h>
2012-06-28 17:14:34 +01:00
spinlock.h
…
statfs.h
UAPI: (Scripted) Disintegrate include/asm-generic
2012-10-04 18:20:15 +01:00
string.h
…
switch_to.h
Split the switch_to() wrapper out of asm-generic/system.h
2012-03-28 18:30:03 +01:00
syscall.h
asm/syscall.h: add syscall_get_arch
2012-04-14 11:13:19 +10:00
syscalls.h
burying unused conditionals
2013-02-14 09:21:15 -05:00
termios-base.h
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termios.h
UAPI: (Scripted) Disintegrate include/asm-generic
2012-10-04 18:20:15 +01:00
timex.h
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tlb.h
Fix TLB gather virtual address range invalidation corner cases
2013-08-16 08:52:46 -07:00
tlbflush.h
BUG: headers with BUG/BUG_ON etc. need linux/bug.h
2012-03-04 17:54:34 -05:00
topology.h
topology: alternate fix for ia64 tiger_defconfig build breakage
2010-08-09 20:44:57 -07:00
trace_clock.h
tracing,x86: Add a TSC trace_clock
2012-11-13 15:48:27 -05:00
uaccess-unaligned.h
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uaccess.h
asm-generic: uaccess s/might_sleep/might_fault/
2013-05-28 09:41:05 +02:00
unaligned.h
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unistd.h
We get rid of the general module prefix confusion with a binary config option,
2013-05-05 10:58:06 -07:00
user.h
asm-generic/user.h: Fix spelling in comment
2011-03-01 15:49:39 +01:00
vga.h
…
vmlinux.lds.h
tracing: Add __tracepoint_string() to export string pointers
2013-07-26 13:39:44 -04:00
vtime.h
include/asm-generic/vtime.h: avoid zero-length file
2013-09-30 14:31:02 -07:00
word-at-a-time.h
word-at-a-time: make the interfaces truly generic
2012-05-26 11:33:40 -07:00
xor.h
asm-generic: xor: mark static functions as __maybe_unused
2012-10-03 21:21:06 +02:00