Max Filippov 1c11f153eb xtensa: fix futex_atomic_cmpxchg_inatomic ...

commit ca47480921 upstream.

Return 0 if the operation was successful, not the userspace memory
value. Check that userspace value equals passed oldval, not itself.
Don't update *uval if the value wasn't read from userspace memory.

This fixes process hang due to infinite loop in futex_lock_pi.
It also fixes a bunch of glibc tests nptl/tst-mutexpi*.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2018-02-16 20:09:47 +01:00

..

asm-offsets.h

kbuild: move asm-offsets.h to include/generated

2009-12-12 13:08:14 +01:00

asmmacro.h

xtensa: fixes for configs without loop option

2015-11-02 18:02:47 +03:00

atomic.h

atomic, arch: Audit atomic_{read,set}()

2015-09-23 09:54:28 +02:00

barrier.h

arch,xtensa: Convert smp_mb__*()

2014-04-18 14:20:47 +02:00

bitops.h

arch,xtensa: Convert smp_mb__*()

2014-04-18 14:20:47 +02:00

bootparam.h

xtensa: split bootparam and kernel meminfo

2014-04-02 01:35:51 +04:00

bugs.h

xtensa: move headers files to arch/xtensa/include

2008-11-06 10:25:09 -08:00

cache.h

dma-mapping: rename ARCH_KMALLOC_MINALIGN to ARCH_DMA_MINALIGN

2010-08-11 08:59:21 -07:00

cacheasm.h

xtensa: fix build for configs without cache options

2015-11-02 18:02:51 +03:00

cacheflush.h

xtensa: support DMA to high memory

2015-11-09 01:25:37 +03:00

checksum.h

xtensa: add missing include asm/uaccess.h to checksum.h

2013-02-23 19:23:13 -08:00

cmpxchg.h

xtensa: implement fake NMI

2015-08-17 07:33:39 +03:00

coprocessor.h

xtensa: reorganize SR referencing

2012-10-15 21:48:08 -07:00

current.h

xtensa: clean up files to make them code-style compliant

2012-12-18 21:10:25 -08:00

delay.h

xtensa: implement ndelay

2014-01-15 00:28:11 +04:00

device.h

xtensa: reimplement DMA API using common helpers

2015-08-17 07:31:00 +03:00

dma-mapping.h

xtensa: implement dma_to_phys and phys_to_dma

2015-11-09 01:25:38 +03:00

dma.h

Fix common misspellings

2011-03-31 11:26:23 -03:00

elf.h

xtensa: add support for TLS

2013-02-23 19:35:57 -08:00

fb.h

xtensa: move headers files to arch/xtensa/include

2008-11-06 10:25:09 -08:00

fixmap.h

xtensa: support aliasing cache in k[un]map_atomic

2014-08-14 11:59:21 +04:00

flat.h

xtensa: add flat support

2009-04-02 23:41:29 -07:00

ftrace.h

ftrace: Make CALLER_ADDRx macros more generic

2014-05-21 03:10:32 -04:00

futex.h

xtensa: fix futex_atomic_cmpxchg_inatomic

2018-02-16 20:09:47 +01:00

gpio.h

gpiolib/arches: Centralise bolierplate asm/gpio.h

2012-05-11 18:00:14 -06:00

highmem.h

xtensa: fix kmap_prot definition

2014-12-09 03:22:57 +03:00

hw_irq.h

xtensa: move headers files to arch/xtensa/include

2008-11-06 10:25:09 -08:00

initialize_mmu.h

xtensa: fix build for configs without cache options

2015-11-02 18:02:51 +03:00

io.h

xtensa: nommu: provide correct KIO addresses

2015-11-02 18:03:02 +03:00

irq.h

xtensa: don't use linux IRQ #0

2017-06-17 06:39:38 +02:00

irqflags.h

xtensa: implement fake NMI

2015-08-17 07:33:39 +03:00

Kbuild

Merge branch 'strscpy' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile

2015-10-04 16:31:13 +01:00

mmu_context.h

xtensa: nommu: move init_mmu stub to nommu_context.h

2014-10-21 13:28:44 +04:00

mmu.h

xtensa: add SMP support

2014-01-14 10:19:58 -08:00

module.h

Make most arch asm/module.h files use asm-generic/module.h

2012-09-28 14:31:03 +09:30

mutex.h

xtensa: move headers files to arch/xtensa/include

2008-11-06 10:25:09 -08:00

mxregs.h

xtensa: add MX irqchip

2014-01-14 10:19:58 -08:00

nommu_context.h

xtensa: nommu: move init_mmu stub to nommu_context.h

2014-10-21 13:28:44 +04:00

page.h

xtensa: nommu: clean up memory map dump

2014-10-21 13:28:58 +04:00

param.h

UAPI: (Scripted) Disintegrate arch/xtensa/include/asm

2012-10-15 21:48:53 -07:00

pci-bridge.h

xtensa: clean up files to make them code-style compliant

2012-12-18 21:10:25 -08:00

pci.h

remove <asm/scatterlist.h>

2015-05-05 13:35:39 -06:00

perf_event.h

xtensa: enable HAVE_PERF_EVENTS

2014-01-15 00:27:03 +04:00

pgalloc.h

xtensa: use buddy allocator for PTE table

2013-11-15 09:32:19 +09:00

pgtable.h

xtensa: nommu: fix USER_RING definition

2015-11-02 18:02:58 +03:00

platform.h

xtensa: remove unused platform_init_irq()

2013-06-05 10:14:20 -07:00

processor.h

xtensa: implement fake NMI

2015-08-17 07:33:39 +03:00

ptrace.h

xtensa: add SMP support

2014-01-14 10:19:58 -08:00

regs.h

xtensa: keep a3 and excsave1 on entry to exception handlers

2013-09-06 09:47:41 -07:00

rwsem.h

rwsem: Move duplicate function prototypes to linux/rwsem.h

2011-01-27 12:30:39 +01:00

segment.h

xtensa: move headers files to arch/xtensa/include

2008-11-06 10:25:09 -08:00

serial.h

xtensa: move headers files to arch/xtensa/include

2008-11-06 10:25:09 -08:00

shmparam.h

xtensa: move headers files to arch/xtensa/include

2008-11-06 10:25:09 -08:00

signal.h

consolidate kernel-side struct sigaction declarations

2013-02-03 15:09:22 -05:00

smp.h

xtensa: implement CPU hotplug

2014-01-14 10:19:59 -08:00

spinlock_types.h

xtensa: fix arch spinlock function names

2014-01-14 10:19:53 -08:00

spinlock.h

xtensa: fix arch spinlock function names

2014-01-14 10:19:53 -08:00

stacktrace.h

xtensa: move oprofile stack tracing to stacktrace.c

2015-08-17 07:32:49 +03:00

string.h

xtensa: fix str[n]cmp return value

2013-02-23 19:22:31 -08:00

switch_to.h

Disintegrate asm/system.h for Xtensa

2012-03-28 18:30:03 +01:00

syscall.h

xtensa: switch to generic sigaltstack

2013-02-03 18:16:27 -05:00

sysmem.h

xtensa: keep sysmem banks ordered in add_sysmem_bank

2014-04-02 01:35:52 +04:00

thread_info.h

xtensa: Remove signal translation and exec_domain

2015-04-12 21:03:29 +02:00

timex.h

xtensa: add SMP support

2014-01-14 10:19:58 -08:00

tlb.h

mm: Pass virtual address to [__]p{te,ud,md}_free_tlb()

2009-07-27 12:10:38 -07:00

tlbflush.h

xtensa: optimize local_flush_tlb_kernel_range

2014-04-06 21:29:17 +04:00

traps.h

xtensa: fix kernel register spilling

2015-08-17 07:33:35 +03:00

types.h

UAPI: (Scripted) Disintegrate arch/xtensa/include/asm

2012-10-15 21:48:53 -07:00

uaccess.h

xtensa: macro whitespace fixes

2015-01-13 15:24:10 +02:00

ucontext.h

xtensa: move headers files to arch/xtensa/include

2008-11-06 10:25:09 -08:00

unaligned.h

xtensa: switch to packed struct unaligned access implementation

2008-11-11 06:14:10 -08:00

unistd.h

consolidate cond_syscall and SYSCALL_ALIAS declarations

2013-03-03 22:55:19 -05:00

user.h

xtensa: move headers files to arch/xtensa/include

2008-11-06 10:25:09 -08:00

vectors.h

xtensa: drop unused sections and remapped reset handlers

2015-11-03 17:19:39 +03:00

vga.h

xtensa: move headers files to arch/xtensa/include

2008-11-06 10:25:09 -08:00