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linux/include/asm-generic
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Romain Perier fba7cd681b asm-generic/futex: Re-enable preemption in futex_atomic_cmpxchg_inatomic() 
The recent decoupling of pagefault disable and preempt disable added an
explicit preempt_disable/enable() pair to the futex_atomic_cmpxchg_inatomic()
implementation in asm-generic/futex.h. But it forgot to add preempt_enable()
calls to the error handling code pathes, which results in a preemption count
imbalance.

This is observable on boot when the test for atomic_cmpxchg() is calling
futex_atomic_cmpxchg_inatomic() on a NULL pointer.

Add the missing preempt_enable() calls to the error handling code pathes.

[ tglx: Massaged changelog ]

Fixes: d9b9ff8c18 ("sched/preempt, futex: Disable preemption in UP futex_atomic_cmpxchg_inatomic() explicitly")
Signed-off-by: Romain Perier <romain.perier@free-electrons.com>
Cc: linux-arch@vger.kernel.org
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: stable@vger.kernel.org
Link: http://lkml.kernel.org/r/1460640963-690-1-git-send-email-romain.perier@free-electrons.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2016-04-21 11:06:09 +02:00
..
bitops
bitops: Do not default to __clear_bit() for __clear_bit_unlock()
2016-03-21 10:50:48 +01:00
4level-fixup.h
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asm-offsets.h
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atomic64.h
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atomic-long.h
include/asm-generic/atomic-long.h: force inlining of some atomic_long operations
2016-03-17 15:09:34 -07:00
atomic.h
atomic, arch: Audit atomic_{read,set}()
2015-09-23 09:54:28 +02:00
audit_change_attr.h
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audit_dir_write.h
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audit_read.h
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audit_signal.h
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audit_write.h
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barrier.h
asm-generic: implement virt_xxx memory barriers
2016-01-12 20:46:59 +02:00
bitops.h
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bitsperlong.h
…
bug.h
Merge tag 'asm-generic-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic
2016-03-24 23:13:48 -07:00
bugs.h
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cache.h
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cacheflush.h
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checksum.h
ipv4: Update parameters for csum_tcpudp_magic to their original types
2016-03-13 23:55:13 -04:00
clkdev.h
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cmpxchg-local.h
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cmpxchg.h
asm-generic: cmpxchg: avoid warnings from macro-ized cmpxchg() implementations
2015-10-15 00:21:13 +02:00
cputime_jiffies.h
…
cputime_nsecs.h
cputime: Prevent 32bit overflow in time[val|spec]_to_cputime()
2016-02-02 15:24:38 +01:00
cputime.h
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current.h
…
delay.h
…
device.h
…
div64.h
__div64_32(): make it overridable at compile time
2015-11-16 14:42:12 -05:00
dma-contiguous.h
…
dma.h
…
early_ioremap.h
…
emergency-restart.h
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exec.h
…
fb.h
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fixmap.h
asm-generic: Fix local variable shadow in __set_fixmap_offset
2016-02-16 15:10:44 +00:00
ftrace.h
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futex.h
asm-generic/futex: Re-enable preemption in futex_atomic_cmpxchg_inatomic()
2016-04-21 11:06:09 +02:00
getorder.h
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gpio.h
gpio: allow setting ARCH_NR_GPIOS from Kconfig
2016-02-19 00:22:54 +01:00
hardirq.h
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hugetlb.h
…
hw_irq.h
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ide_iops.h
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int-ll64.h
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io.h
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ioctl.h
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iomap.h
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irq_regs.h
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irq_work.h
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irq.h
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irqflags.h
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Kbuild.asm
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kdebug.h
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kmap_types.h
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kvm_para.h
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libata-portmap.h
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linkage.h
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local64.h
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local.h
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mcs_spinlock.h
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memory_model.h
mm: add PHYS_PFN, use it in __phys_to_pfn()
2016-01-14 16:00:49 -08:00
mm_hooks.h
mm/core, x86/mm/pkeys: Differentiate instruction fetches
2016-02-18 19:46:29 +01:00
mm-arch-hooks.h
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mmu_context.h
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mmu.h
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module.h
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msi.h
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mutex-dec.h
locking/mutex: Use acquire/release semantics
2015-10-06 17:28:20 +02:00
mutex-null.h
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mutex-xchg.h
locking/mutex: Use acquire/release semantics
2015-10-06 17:28:20 +02:00
mutex.h
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page.h
asm-generic: page.h: Remove useless get_user_page and free_user_page
2016-02-26 15:24:55 +01:00
param.h
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parport.h
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pci_iomap.h
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pci.h
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percpu.h
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pgalloc.h
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pgtable-nopmd.h
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pgtable-nopud.h
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pgtable.h
mm/thp/migration: switch from flush_tlb_range to flush_pmd_tlb_range
2016-03-17 15:09:34 -07:00
preempt.h
sched/core: Create preempt_count invariant
2015-10-06 17:08:14 +02:00
ptrace.h
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qrwlock_types.h
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qrwlock.h
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qspinlock_types.h
locking/qspinlock: Move __ARCH_SPIN_LOCK_UNLOCKED to qspinlock_types.h
2016-02-29 10:02:43 +01:00
qspinlock.h
locking/qspinlock: Move __ARCH_SPIN_LOCK_UNLOCKED to qspinlock_types.h
2016-02-29 10:02:43 +01:00
resource.h
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rtc.h
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rwsem.h
locking/rwsem: Use acquire/release semantics
2015-10-06 17:28:24 +02:00
seccomp.h
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sections.h
asm/sections: add helpers to check for section data
2016-01-16 11:17:24 -08:00
segment.h
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serial.h
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siginfo.h
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signal.h
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simd.h
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sizes.h
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spinlock.h
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statfs.h
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string.h
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switch_to.h
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syscall.h
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syscalls.h
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termios-base.h
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termios.h
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timex.h
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tlb.h
treewide: Remove old email address
2015-11-23 09:44:58 +01:00
tlbflush.h
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topology.h
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trace_clock.h
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uaccess-unaligned.h
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uaccess.h
asm-generic: {get,put}_user ptr argument evaluate only 1 time
2015-11-08 22:44:42 +09:00
unaligned.h
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unistd.h
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user.h
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vga.h
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vmlinux.lds.h
arch, ftrace: for KASAN put hard/soft IRQ entries into separate sections
2016-03-25 16:37:42 -07:00
vtime.h
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word-at-a-time.h
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xor.h
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