Luck, Tony c76f39bddb ia64: fix futex_atomic_cmpxchg_inatomic() ... Michel Lespinasse cleaned up the futex calling conventions in commit 37a9d912b2 ("futex: Sanitize cmpxchg_futex_value_locked API"). But the ia64 implementation was subtly broken. Gcc does not know that register "r8" will be updated by the fault handler if the cmpxchg instruction takes an exception. So it feels safe in letting the initialization of r8 slide to after the cmpxchg. Result: we always return 0 whether the user address faulted or not. Fix by moving the initialization of r8 into the __asm__ code so gcc won't move it. Reported-by: <emeric.maschino@gmail.com> Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=42757 Tested-by: <emeric.maschino@gmail.com> Acked-by: Michel Lespinasse <walken@google.com> Cc: stable@vger.kernel.org # v2.6.39+ Signed-off-by: Tony Luck <tony.luck@intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2012-04-16 18:30:01 -07:00
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native
sn	Disintegrate asm/system.h for IA64	2012-03-28 18:30:02 +01:00
uv	Disintegrate asm/system.h for IA64	2012-03-28 18:30:02 +01:00
xen	xen/enlighten: Expose MWAIT and MWAIT_LEAF if hypervisor OKs it.	2012-03-10 12:44:44 -05:00
acpi-ext.h
acpi.h	Disintegrate asm/system.h for IA64	2012-03-28 18:30:02 +01:00
agp.h
asm-offsets.h
asmmacro.h
atomic.h	Disintegrate asm/system.h for IA64	2012-03-28 18:30:02 +01:00
auxvec.h	Disintegrate asm/system.h for IA64	2012-03-28 18:30:02 +01:00
barrier.h	Disintegrate asm/system.h for IA64	2012-03-28 18:30:02 +01:00
bitops.h	asm-generic: add another generic ext2 atomic bitops	2011-07-26 16:49:46 -07:00
bitsperlong.h
break.h
bug.h
bugs.h
byteorder.h
cache.h
cacheflush.h
checksum.h
clocksource.h	clocksource: Change __ARCH_HAS_CLOCKSOURCE_DATA to a CONFIG option	2011-07-21 13:34:05 -07:00
cmpxchg.h	ia64: populate the cmpxchg header with appropriate code	2012-04-13 13:15:16 -04:00
cpu.h
cputime.h	Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2012-01-06 08:44:54 -08:00
current.h
cyclone.h
delay.h
device.h	iommu: Rename the DMAR and INTR_REMAP config options	2011-09-21 10:22:03 +02:00
div64.h
dma-mapping.h	X86 & IA64: adapt for dma_map_ops changes	2012-03-28 16:36:31 +02:00
dma.h
dmi.h
elf.h
emergency-restart.h
errno.h
esi.h
exec.h	Disintegrate asm/system.h for IA64	2012-03-28 18:30:02 +01:00
fb.h
fcntl.h
fpswa.h
fpu.h
ftrace.h
futex.h	ia64: fix futex_atomic_cmpxchg_inatomic()	2012-04-16 18:30:01 -07:00
gcc_intrin.h
gpio.h	[IA64] Hook up gpiolib support	2011-06-01 13:44:06 -07:00
hardirq.h
hpsim.h	hpsim, initialize chip for assigned irqs	2012-03-08 12:26:30 -08:00
hugetlb.h
hw_irq.h	ia64: Remove redundant declaration of irq_desc[]	2011-03-29 14:48:05 +02:00
ia64regs.h
idle.h
intel_intrin.h
intrinsics.h	ia64: populate the cmpxchg header with appropriate code	2012-04-13 13:15:16 -04:00
io.h	Disintegrate asm/system.h for IA64	2012-03-28 18:30:02 +01:00
ioctl.h
ioctls.h
iommu_table.h
iommu.h	iommu: Add option to group multi-function devices	2011-11-15 12:22:31 +01:00
iosapic.h
ipcbuf.h	consolidate a bunch of ipcbuf.h instances	2012-01-03 22:55:18 -05:00
irq_regs.h
irq.h
irqflags.h	Disintegrate asm/system.h for IA64	2012-03-28 18:30:02 +01:00
Kbuild
kdebug.h
kexec.h	Disintegrate asm/system.h for IA64	2012-03-28 18:30:02 +01:00
kmap_types.h
kprobes.h
kregs.h
kvm_host.h	KVM: Introduce kvm_memory_slot::arch and move lpage_info into it	2012-03-08 14:10:22 +02:00
kvm_para.h
kvm.h	KVM: provide synchronous registers in kvm_run	2012-03-05 14:52:22 +02:00
libata-portmap.h
linkage.h
local64.h
local.h
machvec_dig_vtd.h
machvec_dig.h
machvec_hpsim.h
machvec_hpzx1_swiotlb.h
machvec_hpzx1.h
machvec_init.h
machvec_sn2.h
machvec_uv.h
machvec_xen.h
machvec.h
mc146818rtc.h
mca_asm.h	Disintegrate asm/system.h for IA64	2012-03-28 18:30:02 +01:00
mca.h
meminit.h
mman.h
mmu_context.h
mmu.h
mmzone.h
module.h
msgbuf.h
msidef.h
mutex.h
nodedata.h
numa.h
page.h	Disintegrate asm/system.h for IA64	2012-03-28 18:30:02 +01:00
pal.h	Fix common misspellings	2011-03-31 11:26:23 -03:00
param.h
paravirt_patch.h
paravirt_privop.h
paravirt.h	static keys: Introduce 'struct static_key', static_key_true()/false() and static_key_slow_[inc|dec]()	2012-02-24 10:05:59 +01:00
parport.h
patch.h
pci.h	Disintegrate and delete asm/system.h	2012-03-28 15:58:21 -07:00
percpu.h
perfmon_default_smpl.h	Fix common misspellings	2011-03-31 11:26:23 -03:00
perfmon.h
pgalloc.h
pgtable.h	Disintegrate asm/system.h for IA64	2012-03-28 18:30:02 +01:00
poll.h
posix_types.h	ia64: Use generic posix_types.h	2012-02-14 12:01:28 -08:00
processor.h	Disintegrate asm/system.h for IA64	2012-03-28 18:30:02 +01:00
ptrace_offsets.h
ptrace.h	Audit: push audit success and retcode into arch ptrace.h	2012-01-17 16:16:56 -05:00
pvclock-abi.h
resource.h
rse.h
rwsem.h
sal.h	Disintegrate asm/system.h for IA64	2012-03-28 18:30:02 +01:00
scatterlist.h
sections.h
segment.h
sembuf.h
serial.h
setup.h	Disintegrate asm/system.h for IA64	2012-03-28 18:30:02 +01:00
shmbuf.h
shmparam.h
sigcontext.h
siginfo.h
signal.h
smp.h
socket.h	net: Add framework to allow sending packets with customized CRC.	2012-02-24 01:37:35 -08:00
sockios.h
sparsemem.h
spinlock_types.h
spinlock.h	Disintegrate asm/system.h for IA64	2012-03-28 18:30:02 +01:00
stat.h
statfs.h
string.h
swab.h
swiotlb.h
switch_to.h	Disintegrate asm/system.h for IA64	2012-03-28 18:30:02 +01:00
sync_bitops.h
syscall.h
termbits.h
termios.h
thread_info.h	freezer: remove now unused TIF_FREEZE	2011-11-21 12:32:25 -08:00
timex.h
tlb.h	ia64: mmu_gather rework	2011-05-25 08:39:15 -07:00
tlbflush.h
topology.h
types.h	consolidate umode_t declarations	2012-01-03 22:55:17 -05:00
uaccess.h
ucontext.h
unaligned.h
uncached.h
unistd.h	ia64: Add accept4() syscall	2012-01-09 12:55:10 -08:00
unwind.h
user.h
ustack.h
vga.h
xor.h