ACIL FM

Nama	Ukuran	Aksi
arch_hweight.h	555 B	View DL Edit
atomic.h	1.64 MB	View DL Edit
builtin-ffs.h	374 B	View DL Edit
builtin-fls.h	412 B	View DL Edit
builtin-__ffs.h	379 B	View DL Edit
builtin-__fls.h	436 B	View DL Edit
const_hweight.h	1.67 MB	View DL Edit
ext2-atomic-setbit.h	403 B	View DL Edit
ext2-atomic.h	600 B	View DL Edit
ffs.h	654 B	View DL Edit
ffz.h	325 B	View DL Edit
fls.h	683 B	View DL Edit
fls64.h	860 B	View DL Edit
hweight.h	254 B	View DL Edit
instrumented-atomic.h	2.99 MB	View DL Edit
instrumented-lock.h	2.62 MB	View DL Edit
instrumented-non-atomic.h	4.67 MB	View DL Edit
le.h	1.3 MB	View DL Edit
lock.h	2.58 MB	View DL Edit
non-atomic.h	3.86 MB	View DL Edit
sched.h	760 B	View DL Edit
__ffs.h	777 B	View DL Edit
__fls.h	920 B	View DL Edit

Edit file: /usr/src/kernels/5.14.0-427.31.1.el9_4.x86_64/include/asm-generic/bitops/instrumented-atomic.h

/* SPDX-License-Identifier: GPL-2.0 */

/*
 * This file provides wrappers with sanitizer instrumentation for atomic bit
 * operations.
 *
 * To use this functionality, an arch's bitops.h file needs to define each of
 * the below bit operations with an arch_ prefix (e.g. arch_set_bit(),
 * arch___set_bit(), etc.).
 */
#ifndef _ASM_GENERIC_BITOPS_INSTRUMENTED_ATOMIC_H
#define _ASM_GENERIC_BITOPS_INSTRUMENTED_ATOMIC_H

#include <linux/instrumented.h>

/**
 * set_bit - Atomically set a bit in memory
 * @nr: the bit to set
 * @addr: the address to start counting from
 *
 * This is a relaxed atomic operation (no implied memory barriers).
 *
 * Note that @nr may be almost arbitrarily large; this function is not
 * restricted to acting on a single-word quantity.
 */
static __always_inline void set_bit(long nr, volatile unsigned long *addr)
{
	instrument_atomic_write(addr + BIT_WORD(nr), sizeof(long));
	arch_set_bit(nr, addr);
}

/**
 * clear_bit - Clears a bit in memory
 * @nr: Bit to clear
 * @addr: Address to start counting from
 *
 * This is a relaxed atomic operation (no implied memory barriers).
 */
static __always_inline void clear_bit(long nr, volatile unsigned long *addr)
{
	instrument_atomic_write(addr + BIT_WORD(nr), sizeof(long));
	arch_clear_bit(nr, addr);
}

/**
 * change_bit - Toggle a bit in memory
 * @nr: Bit to change
 * @addr: Address to start counting from
 *
 * This is a relaxed atomic operation (no implied memory barriers).
 *
 * Note that @nr may be almost arbitrarily large; this function is not
 * restricted to acting on a single-word quantity.
 */
static __always_inline void change_bit(long nr, volatile unsigned long *addr)
{
	instrument_atomic_write(addr + BIT_WORD(nr), sizeof(long));
	arch_change_bit(nr, addr);
}

/**
 * test_and_set_bit - Set a bit and return its old value
 * @nr: Bit to set
 * @addr: Address to count from
 *
 * This is an atomic fully-ordered operation (implied full memory barrier).
 */
static __always_inline bool test_and_set_bit(long nr, volatile unsigned long *addr)
{
	kcsan_mb();
	instrument_atomic_read_write(addr + BIT_WORD(nr), sizeof(long));
	return arch_test_and_set_bit(nr, addr);
}

/**
 * test_and_clear_bit - Clear a bit and return its old value
 * @nr: Bit to clear
 * @addr: Address to count from
 *
 * This is an atomic fully-ordered operation (implied full memory barrier).
 */
static __always_inline bool test_and_clear_bit(long nr, volatile unsigned long *addr)
{
	kcsan_mb();
	instrument_atomic_read_write(addr + BIT_WORD(nr), sizeof(long));
	return arch_test_and_clear_bit(nr, addr);
}

/**
 * test_and_change_bit - Change a bit and return its old value
 * @nr: Bit to change
 * @addr: Address to count from
 *
 * This is an atomic fully-ordered operation (implied full memory barrier).
 */
static __always_inline bool test_and_change_bit(long nr, volatile unsigned long *addr)
{
	kcsan_mb();
	instrument_atomic_read_write(addr + BIT_WORD(nr), sizeof(long));
	return arch_test_and_change_bit(nr, addr);
}

#endif /* _ASM_GENERIC_BITOPS_INSTRUMENTED_NON_ATOMIC_H */

Batal