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

..

a.out-core.h

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a.out.h

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

2012-12-17 14:12:19 +00:00

agp_backend.h

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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

atomic.h

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

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

barrier.h

arch: Cleanup read_barrier_depends() and comments

2014-12-11 21:15:05 -05:00

bitops.h

arch,alpha: Convert smp_mb__*() to the asm-generic primitives

2014-04-18 11:40:31 +02:00

bug.h

alpha: Convert BUG() to use unreachable()

2009-12-18 01:14:52 -05:00

bugs.h

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cache.h

alpha: remove homegrown L1_CACHE_ALIGN macro

2010-08-31 22:45:31 -04:00

cacheflush.h

mm: Fix out-of-date comments which refers non-existent functions

2011-02-17 16:54:39 +01:00

checksum.h

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cmpxchg.h

arch: Remove __ARCH_HAVE_CMPXCHG

2015-05-13 10:55:42 +02:00

compiler.h

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

2012-12-17 14:12:19 +00:00

console.h

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

2012-12-17 14:12:19 +00:00

core_apecs.h

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core_cia.h

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core_irongate.h

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core_lca.h

Disintegrate asm/system.h for Alpha

2012-03-28 18:11:12 +01:00

core_marvel.h

alpha: fix compile errors in dma-mapping-common.h

2010-03-18 22:35:28 -04:00

core_mcpcia.h

Disintegrate asm/system.h for Alpha

2012-03-28 18:11:12 +01:00

core_polaris.h

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core_t2.h

Disintegrate asm/system.h for Alpha

2012-03-28 18:11:12 +01:00

core_titan.h

alpha: fix compile errors in dma-mapping-common.h

2010-03-18 22:35:28 -04:00

core_tsunami.h

alpha: fix compile errors in dma-mapping-common.h

2010-03-18 22:35:28 -04:00

core_wildfire.h

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current.h

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delay.h

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device.h

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div64.h

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dma-mapping.h

dma-mapping: consolidate dma_set_mask

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

dma.h

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elf.h

Disintegrate asm/system.h for Alpha

2012-03-28 18:11:12 +01:00

emergency-restart.h

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err_common.h

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err_ev6.h

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err_ev7.h

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fb.h

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floppy.h

alpha: irq: remove deprecated use of IRQF_DISABLED

2013-04-07 12:59:30 -07:00

fpu.h

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

2012-12-17 14:12:19 +00:00

ftrace.h

tracing: make CALLER_ADDRx overwriteable

2009-03-02 16:49:37 -05:00

futex.h

alpha: fix 32/64-bit bug in futex support

2012-03-05 15:49:43 -08:00

gct.h

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gpio.h

gpiolib/arches: Centralise bolierplate asm/gpio.h

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

hardirq.h

alpha: convert to asm-generic/hardirq.h

2009-09-22 07:17:43 -07:00

hw_irq.h

alpha: add performance monitor interrupt counter

2010-08-09 20:45:03 -07:00

hwrpb.h

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io_trivial.h

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io.h

alpha: io: define ioremap_uc

2015-09-17 21:16:07 -07:00

irq_regs.h

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irq.h

alpha: kill off alpha_do_IRQ

2011-01-17 05:42:13 +01:00

irqflags.h

Disintegrate asm/system.h for Alpha

2012-03-28 18:11:12 +01:00

jensen.h

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Kbuild

mm: clean up per architecture MM hook header files

2015-07-17 16:39:53 -07:00

kdebug.h

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kmap_types.h

kmap_types: make most arches use generic header file

2009-06-16 19:47:51 -07:00

linkage.h

consolidate cond_syscall and SYSCALL_ALIAS declarations

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

local64.h

arch: Implement local64_t

2010-06-09 11:12:36 +02:00

local.h

atomic: use <linux/atomic.h>

2011-07-26 16:49:47 -07:00

machvec.h

alpha: Reorganize rtc handling

2013-11-16 16:33:16 -08:00

mc146818rtc.h

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mce.h

Disintegrate asm/system.h for Alpha

2012-03-28 18:11:12 +01:00

mmu_context.h

Disintegrate asm/system.h for Alpha

2012-03-28 18:11:12 +01:00

mmu.h

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mmzone.h

mm/ALPHA: clean up unused VALID_PAGE()

2013-07-03 16:07:39 -07:00

module.h

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

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

mutex.h

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page.h

asm-generic: rename page.h and uaccess.h

2009-06-11 21:02:17 +02:00

pal.h

alpha: Use qemu+cserve provided high-res clock and alarm.

2013-11-16 16:33:21 -08:00

param.h

alpha: Force the user-visible HZ to a constant 1024.

2013-07-19 13:54:26 -07:00

parport.h

ALPHA: drivers: remove __dev* attributes.

2013-01-03 15:57:13 -08:00

pci.h

Merge branch 'for-4.2/sg' of git://git.kernel.dk/linux-block

2015-06-25 15:22:36 -07:00

percpu.h

alpha: fix percpu build breakage

2009-06-30 18:55:59 -07:00

perf_event.h

perf, arch: Cleanup perf-pmu init vs lockup-detector

2010-11-26 15:14:56 +01:00

pgalloc.h

alpha: handle pgtable_page_ctor() fail

2013-11-15 09:32:16 +09:00

pgtable.h

mm: make FIRST_USER_ADDRESS unsigned long on all archs

2015-02-11 17:06:03 -08:00

processor.h

alpha: forward declare struct pt_regs in processor.h

2015-04-17 09:03:53 -04:00

ptrace.h

alpha: Enable system-call auditing support.

2014-01-31 09:21:55 -08:00

rtc.h

alpha: Reorganize rtc handling

2013-11-16 16:33:16 -08:00

rwsem.h

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

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

segment.h

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serial.h

serial: 8250: remove Kconfig indirection

2015-05-06 22:27:00 +02:00

sfp-machine.h

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shmparam.h

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signal.h

consolidate kernel-side struct sigaction declarations

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

smp.h

Remove unused PROC_CHANGE_PENALTY constant

2011-05-25 08:39:43 -07:00

socket.h

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

2012-12-17 14:12:19 +00:00

special_insns.h

Disintegrate asm/system.h for Alpha

2012-03-28 18:11:12 +01:00

spinlock_types.h

locking: Convert raw_rwlock to arch_rwlock

2009-12-14 23:55:32 +01:00

spinlock.h

alpha: select CONFIG_ARCH_USE_CMPXCHG_LOCKREF.

2015-08-30 18:01:16 -07:00

string.h

alpha: Eliminate compiler warning from memset macro

2013-11-16 16:33:09 -08:00

switch_to.h

Disintegrate asm/system.h for Alpha

2012-03-28 18:11:12 +01:00

syscall.h

Alpha: define syscall_get_arch()

2014-09-23 16:20:03 -04:00

termios.h

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

2012-12-17 14:12:19 +00:00

thread_info.h

arch: Remove exec_domain from remaining archs

2015-04-12 21:03:30 +02:00

timex.h

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tlb.h

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

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

tlbflush.h

alpha: switch to dynamic percpu allocator

2009-06-24 15:13:52 +09:00

topology.h

alpha: cpumask_of_node() should handle -1 as a node

2010-01-14 13:21:35 -05:00

types.h

alpha: Remove #include <uapi/asm/types.h> from <asm/types.h>

2015-05-26 10:01:45 -07:00

uaccess.h

alpha: macro whitespace fixes

2015-01-13 15:23:49 +02:00

ucontext.h

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unaligned.h

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unistd.h

alpha: Wire up all missing implemented syscalls

2015-05-26 10:01:50 -07:00

user.h

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vga.h

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word-at-a-time.h

alpha: Use new generic strncpy_from_user() and strnlen_user()

2012-08-19 08:41:18 -07:00

wrperfmon.h

alpha: add wrperfmon.h header file to aid use of wrperfmon PALcall

2010-08-09 20:45:04 -07:00

xchg.h

alpha: fix build failures from system.h dismemberment

2012-04-13 13:15:16 -04:00

xor.h

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