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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_MICROBLAZE_ATOMIC_H
#define _ASM_MICROBLAZE_ATOMIC_H

#include <asm/cmpxchg.h>
#include <asm-generic/atomic.h>
#include <asm-generic/atomic64.h>

/*
 * Atomically test *v and decrement if it is greater than 0.
 * The function returns the old value of *v minus 1.
 */
static inline int atomic_dec_if_positive(atomic_t *v)
{
	unsigned long flags;
	int res;

	local_irq_save(flags);
	res = v->counter - 1;
	if (res >= 0)
		v->counter = res;
	local_irq_restore(flags);

	return res;
}
#define atomic_dec_if_positive atomic_dec_if_positive

#endif /* _ASM_MICROBLAZE_ATOMIC_H */

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Name Type Size Permission Actions
Kbuild File 742 B 0644
asm-compat.h File 518 B 0644
asm-offsets.h File 35 B 0644
atomic.h File 626 B 0644
cache.h File 644 B 0644
cacheflush.h File 4.12 KB 0644
checksum.h File 942 B 0644
cmpxchg.h File 919 B 0644
cpuinfo.h File 2.13 KB 0644
cputable.h File 1 B 0644
current.h File 850 B 0644
delay.h File 2.26 KB 0644
dma-mapping.h File 765 B 0644
dma.h File 706 B 0644
elf.h File 738 B 0644
entry.h File 1.13 KB 0644
exceptions.h File 2.08 KB 0644
fixmap.h File 1.96 KB 0644
flat.h File 2.26 KB 0644
ftrace.h File 641 B 0644
futex.h File 2.13 KB 0644
hash.h File 2.37 KB 0644
highmem.h File 2.2 KB 0644
hw_irq.h File 1 B 0644
io.h File 2.05 KB 0644
irq.h File 538 B 0644
irqflags.h File 2.6 KB 0644
kgdb.h File 739 B 0644
mmu.h File 4.19 KB 0644
mmu_context.h File 141 B 0644
mmu_context_mm.h File 3.91 KB 0644
module.h File 840 B 0644
page.h File 6.11 KB 0644
pci-bridge.h File 4.57 KB 0644
pci.h File 2.47 KB 0644
pgalloc.h File 4.74 KB 0644
pgtable.h File 17.66 KB 0644
processor.h File 4.11 KB 0644
prom.h File 713 B 0644
ptrace.h File 727 B 0644
pvr.h File 8.72 KB 0644
registers.h File 1.65 KB 0644
seccomp.h File 256 B 0644
sections.h File 637 B 0644
setup.h File 1.37 KB 0644
string.h File 630 B 0644
switch_to.h File 629 B 0644
syscall.h File 2.26 KB 0644
thread_info.h File 4.01 KB 0644
timex.h File 402 B 0644
tlb.h File 714 B 0644
tlbflush.h File 2.04 KB 0644
uaccess.h File 9.98 KB 0644
unaligned.h File 871 B 0644
unistd.h File 1.19 KB 0644
unwind.h File 719 B 0644
user.h File 1 B 0644