File: ext2-atomic.h

package info (click to toggle)
linux 4.19.16-1
  • links: PTS, VCS
  • area: main
  • in suites: buster
  • size: 955,852 kB
  • sloc: ansic: 16,748,305; asm: 271,259; makefile: 38,297; sh: 38,030; perl: 28,295; python: 21,019; cpp: 5,063; yacc: 4,648; lex: 2,583; awk: 1,385; ruby: 25; sed: 5
file content (27 lines) | stat: -rw-r--r-- 600 bytes parent folder | download | duplicates (31)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_GENERIC_BITOPS_EXT2_ATOMIC_H_
#define _ASM_GENERIC_BITOPS_EXT2_ATOMIC_H_

/*
 * Spinlock based version of ext2 atomic bitops
 */

#define ext2_set_bit_atomic(lock, nr, addr)		\
	({						\
		int ret;				\
		spin_lock(lock);			\
		ret = __test_and_set_bit_le(nr, addr);	\
		spin_unlock(lock);			\
		ret;					\
	})

#define ext2_clear_bit_atomic(lock, nr, addr)		\
	({						\
		int ret;				\
		spin_lock(lock);			\
		ret = __test_and_clear_bit_le(nr, addr);	\
		spin_unlock(lock);			\
		ret;					\
	})

#endif /* _ASM_GENERIC_BITOPS_EXT2_ATOMIC_H_ */