Peter Zijlstra 62e8a3258b atomic, arch: Audit atomic_{read,set}() ...

This patch makes sure that atomic_{read,set}() are at least
{READ,WRITE}_ONCE().

We already had the 'requirement' that atomic_read() should use
ACCESS_ONCE(), and most archs had this, but a few were lacking.
All are now converted to use READ_ONCE().

And, by a symmetry and general paranoia argument, upgrade atomic_set()
to use WRITE_ONCE().

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: james.hogan@imgtec.com
Cc: linux-kernel@vger.kernel.org
Cc: oleg@redhat.com
Cc: will.deacon@arm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>

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

..

asm-offsets.h

…

atomic_32.h

atomic: Provide atomic_{or,xor,and}

2015-07-27 14:06:24 +02:00

atomic_64.h

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

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

atomic.h

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

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

backtrace.h

arch/tile: refactor backtracing code

2011-05-02 13:49:14 -04:00

barrier.h

arch,tile: Convert smp_mb__*()

2014-04-18 14:20:45 +02:00

bitops_32.h

arch,tile: Convert smp_mb__*()

2014-04-18 14:20:45 +02:00

bitops_64.h

arch,tile: Convert smp_mb__*()

2014-04-18 14:20:45 +02:00

bitops.h

arch,tile: Convert smp_mb__*()

2014-04-18 14:20:45 +02:00

cache.h

tile: make __write_once a synonym for __read_mostly

2013-09-03 14:53:32 -04:00

cacheflush.h

tile: convert uses of "inv" to "finv"

2013-07-31 11:51:19 -04:00

checksum.h

arch/tile: break out the "csum a long" function to <asm/checksum.h>

2012-07-11 16:04:57 -04:00

cmpxchg.h

tile: include: asm: use 'long long' instead of 'u64' for atomic64_t and its related functions

2013-09-27 16:08:56 -04:00

compat.h

tile: Use get_signal() signal_setup_done()

2014-08-06 13:03:20 +02:00

current.h

…

delay.h

…

device.h

tile PCI RC: make default consistent DMA mask 32-bit

2013-09-03 14:53:37 -04:00

dma-mapping.h

dma-mapping: consolidate dma_set_mask

2015-09-10 13:29:01 -07:00

dma.h

…

elf.h

tile: enable full SECCOMP support

2015-07-30 12:32:16 -04:00

fixmap.h

tile: use generic fixmap.h

2014-01-23 16:36:54 -08:00

ftrace.h

tile: ftrace: fix function_graph tracer issues

2015-04-17 14:01:38 -04:00

futex.h

tile: use proper .align directives on __ex_table sections

2013-08-30 11:56:11 -04:00

hardirq.h

hardirq: Make hardirq bits generic

2013-11-13 20:21:46 +01:00

hardwall.h

proc: convert /proc/$PID/hardwall to seq_file interface

2014-08-08 15:57:23 -07:00

highmem.h

highmem: kill all __kmap_atomic()

2012-03-20 21:48:30 +08:00

homecache.h

tile: remove support for TILE64

2013-09-03 14:53:29 -04:00

hugetlb.h

mm/hugetlb: remove arch_prepare/release_hugepage from arch headers

2015-06-25 17:00:35 -07:00

hv_driver.h

…

ide.h

…

io.h

arch/*/io.h: Add ioremap_uc() to all architectures

2015-07-29 10:02:36 +02:00

irq_work.h

tile: support arch_irq_work_raise

2015-04-17 12:58:44 -04:00

irq.h

tile: support delivering NMIs for multicore backtrace

2015-05-11 11:22:31 -04:00

irqflags.h

tile: Replace __get_cpu_var uses

2014-08-26 13:45:54 -04:00

Kbuild

tile: enable full SECCOMP support

2015-07-30 12:32:16 -04:00

kdebug.h

tile: support kprobes on tilegx

2013-08-30 11:55:53 -04:00

kexec.h

arch/tile: support kexec() for tilegx

2012-05-25 12:48:25 -04:00

kgdb.h

tilegx: support KGDB

2013-09-03 14:51:26 -04:00

kmap_types.h

tile: remove km_type definitions

2012-07-24 15:27:32 +08:00

kprobes.h

tile: support kprobes on tilegx

2013-08-30 11:55:53 -04:00

linkage.h

…

mmu_context.h

tile: Replace __get_cpu_var uses

2014-08-26 13:45:54 -04:00

mmu.h

tile: implement gettimeofday() via vDSO

2013-08-13 16:26:21 -04:00

mmzone.h

tile: fix some -Wsign-compare warnings

2013-08-30 11:56:50 -04:00

module.h

arch/tile: Allow tilegx to build with either 16K or 64K page size

2012-05-25 12:48:24 -04:00

page.h

arm64,ia64,ppc,s390,sh,tile,um,x86,mm: remove default gate area

2014-08-08 15:57:27 -07:00

pci.h

tile PCI RC: add comment about "PCI hole" problem

2013-09-03 14:52:20 -04:00

percpu.h

tile: use a more conservative __my_cpu_offset in CONFIG_PREEMPT

2013-09-30 10:34:41 -04:00

perf_event.h

tile/perf: Support perf_events on tilegx and tilepro

2014-03-07 11:19:48 -05:00

pgalloc.h

arch/tile: Allow tilegx to build with either 16K or 64K page size

2012-05-25 12:48:24 -04:00

pgtable_32.h

tile: remove HUGE_VMAP dead code

2013-09-13 11:15:24 -04:00

pgtable_64.h

tile: Use the more common pr_warn instead of pr_warning

2014-11-11 15:51:42 -05:00

pgtable.h

mm: clarify that the function operates on hugepage pte

2015-06-24 17:49:44 -07:00

pmc.h

tile: Add support for handling PMC hardware

2014-03-07 11:19:47 -05:00

processor.h

tile: improve stack backtrace

2015-05-11 11:22:40 -04:00

ptrace.h

tile: don't assume user privilege is zero

2013-09-03 14:45:52 -04:00

sections.h

tile: Remove tile-specific _sinitdata and _einitdata

2014-10-02 10:19:33 -04:00

setup.h

tile: various console improvements

2013-08-12 14:46:18 -04:00

sigframe.h

…

signal.h

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

2012-10-09 09:47:47 +01:00

smp.h

tile: support arch_irq_work_raise

2015-04-17 12:58:44 -04:00

spinlock_32.h

tile: use READ_ONCE() in arch_spin_is_locked()

2015-04-28 22:43:16 -04:00

spinlock_64.h

tile: use READ_ONCE() in arch_spin_is_locked()

2015-04-28 22:43:16 -04:00

spinlock_types.h

…

spinlock.h

…

stack.h

tile: improve stack backtrace

2015-05-11 11:22:40 -04:00

string.h

tile: optimize strnlen using SIMD instructions

2013-08-01 20:08:51 -04:00

switch_to.h

tile: Reorganize _switch_to()

2015-08-08 10:29:21 +02:00

syscall.h

tile: enable full SECCOMP support

2015-07-30 12:32:16 -04:00

syscalls.h

tile: move declaration of sys_call_table to <asm/syscall.h>

2013-03-21 15:39:35 -04:00

thread_info.h

tile: improve stack backtrace

2015-05-11 11:22:40 -04:00

tile-desc_32.h

arch/tile: factor out <arch/opcode.h> header

2011-11-03 16:58:54 -04:00

tile-desc_64.h

arch/tile: factor out <arch/opcode.h> header

2011-11-03 16:58:54 -04:00

tile-desc.h

arch/tile: factor out <arch/opcode.h> header

2011-11-03 16:58:54 -04:00

timex.h

Disintegrate asm/system.h for Tile

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

tlb.h

…

tlbflush.h

arch/tile: support multiple huge page sizes dynamically

2012-05-25 12:48:27 -04:00

topology.h

sched/topology: Rename topology_thread_cpumask() to topology_sibling_cpumask()

2015-05-27 15:22:15 +02:00

traps.h

tile: support delivering NMIs for multicore backtrace

2015-05-11 11:22:31 -04:00

uaccess.h

Merge git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile

2015-06-30 21:47:12 -07:00

unaligned.h

tile: improve big-endian support

2013-08-13 16:26:05 -04:00

unistd.h

burying unused conditionals

2013-02-14 09:21:15 -05:00

user.h

…

vdso.h

tile: add clock_gettime support to vDSO

2014-10-02 13:56:07 -04:00

vga.h

arch/tile: various header improvements for building drivers

2011-05-04 14:40:54 -04:00

word-at-a-time.h

tile: add <asm/word-at-a-time.h> and enable support functions

2015-04-30 15:23:37 -04:00