1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _FALLOC_H_
3#define _FALLOC_H_
4
5#include <uapi/linux/falloc.h>
6
7
8/*
9 * Space reservation ioctls and argument structure
10 * are designed to be compatible with the legacy XFS ioctls.
11 */
12struct space_resv {
13	__s16		l_type;
14	__s16		l_whence;
15	__s64		l_start;
16	__s64		l_len;		/* len == 0 means until end of file */
17	__s32		l_sysid;
18	__u32		l_pid;
19	__s32		l_pad[4];	/* reserved area */
20};
21
22#define FS_IOC_RESVSP		_IOW('X', 40, struct space_resv)
23#define FS_IOC_UNRESVSP		_IOW('X', 41, struct space_resv)
24#define FS_IOC_RESVSP64		_IOW('X', 42, struct space_resv)
25#define FS_IOC_UNRESVSP64	_IOW('X', 43, struct space_resv)
26#define FS_IOC_ZERO_RANGE	_IOW('X', 57, struct space_resv)
27
28#define	FALLOC_FL_SUPPORTED_MASK	(FALLOC_FL_KEEP_SIZE |		\
29					 FALLOC_FL_PUNCH_HOLE |		\
30					 FALLOC_FL_COLLAPSE_RANGE |	\
31					 FALLOC_FL_ZERO_RANGE |		\
32					 FALLOC_FL_INSERT_RANGE |	\
33					 FALLOC_FL_UNSHARE_RANGE)
34
35/* on ia32 l_start is on a 32-bit boundary */
36#if defined(CONFIG_X86_64)
37struct space_resv_32 {
38	__s16		l_type;
39	__s16		l_whence;
40	__s64		l_start	__attribute__((packed));
41			/* len == 0 means until end of file */
42	__s64		l_len __attribute__((packed));
43	__s32		l_sysid;
44	__u32		l_pid;
45	__s32		l_pad[4];	/* reserve area */
46};
47
48#define FS_IOC_RESVSP_32	_IOW ('X', 40, struct space_resv_32)
49#define FS_IOC_UNRESVSP_32	_IOW ('X', 41, struct space_resv_32)
50#define FS_IOC_RESVSP64_32	_IOW ('X', 42, struct space_resv_32)
51#define FS_IOC_UNRESVSP64_32	_IOW ('X', 43, struct space_resv_32)
52#define FS_IOC_ZERO_RANGE_32	_IOW ('X', 57, struct space_resv_32)
53
54#endif
55
56#endif /* _FALLOC_H_ */
57