[linux-2.6-block.git] / include / linux / falloc.h

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

#include <uapi/linux/falloc.h>


/*
 * Space reservation ioctls and argument structure
 * are designed to be compatible with the legacy XFS ioctls.
 */
struct space_resv {
	__s16		l_type;
	__s16		l_whence;
	__s64		l_start;
	__s64		l_len;		/* len == 0 means until end of file */
	__s32		l_sysid;
	__u32		l_pid;
	__s32		l_pad[4];	/* reserved area */
};

#define FS_IOC_RESVSP		_IOW('X', 40, struct space_resv)
#define FS_IOC_UNRESVSP		_IOW('X', 41, struct space_resv)
#define FS_IOC_RESVSP64		_IOW('X', 42, struct space_resv)
#define FS_IOC_UNRESVSP64	_IOW('X', 43, struct space_resv)
#define FS_IOC_ZERO_RANGE	_IOW('X', 57, struct space_resv)

#define	FALLOC_FL_SUPPORTED_MASK	(FALLOC_FL_KEEP_SIZE |		\
					 FALLOC_FL_PUNCH_HOLE |		\
					 FALLOC_FL_COLLAPSE_RANGE |	\
					 FALLOC_FL_ZERO_RANGE |		\
					 FALLOC_FL_INSERT_RANGE |	\
					 FALLOC_FL_UNSHARE_RANGE)

/* on ia32 l_start is on a 32-bit boundary */
#if defined(CONFIG_X86_64)
struct space_resv_32 {
	__s16		l_type;
	__s16		l_whence;
	__s64		l_start	__attribute__((packed));
			/* len == 0 means until end of file */
	__s64		l_len __attribute__((packed));
	__s32		l_sysid;
	__u32		l_pid;
	__s32		l_pad[4];	/* reserve area */
};

#define FS_IOC_RESVSP_32	_IOW ('X', 40, struct space_resv_32)
#define FS_IOC_UNRESVSP_32	_IOW ('X', 41, struct space_resv_32)
#define FS_IOC_RESVSP64_32	_IOW ('X', 42, struct space_resv_32)
#define FS_IOC_UNRESVSP64_32	_IOW ('X', 43, struct space_resv_32)
#define FS_IOC_ZERO_RANGE_32	_IOW ('X', 57, struct space_resv_32)

#endif

#endif /* _FALLOC_H_ */
Commit	Line	Data
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
97ac7350 AA	2	#ifndef _FALLOC_H_
	3	#define _FALLOC_H_
	4
607ca46e	5	#include <uapi/linux/falloc.h>
97ac7350	6
3e63cbb1 AJ	7
	8	/*
	9	* Space reservation ioctls and argument structure
	10	* are designed to be compatible with the legacy XFS ioctls.
	11	*/
	12	struct 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)
837a6e7f	23	#define FS_IOC_UNRESVSP _IOW('X', 41, struct space_resv)
3e63cbb1	24	#define FS_IOC_RESVSP64 _IOW('X', 42, struct space_resv)
837a6e7f CH	25	#define FS_IOC_UNRESVSP64 _IOW('X', 43, struct space_resv)
837a6e7f CH	26	#define FS_IOC_ZERO_RANGE _IOW('X', 57, struct space_resv)
3e63cbb1	27
dd46c787 NJ	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 \| \
71be6b49 DW	32	FALLOC_FL_INSERT_RANGE \| \
71be6b49 DW	33	FALLOC_FL_UNSHARE_RANGE)
dd46c787	34
011da44b AV	35	/* on ia32 l_start is on a 32-bit boundary */
	36	#if defined(CONFIG_X86_64)
	37	struct 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
97eeb4d9 LT	48	#define FS_IOC_RESVSP_32 _IOW ('X', 40, struct space_resv_32)
97eeb4d9 LT	49	#define FS_IOC_UNRESVSP_32 _IOW ('X', 41, struct space_resv_32)
011da44b	50	#define FS_IOC_RESVSP64_32 _IOW ('X', 42, struct space_resv_32)
97eeb4d9 LT	51	#define FS_IOC_UNRESVSP64_32 _IOW ('X', 43, struct space_resv_32)
97eeb4d9 LT	52	#define FS_IOC_ZERO_RANGE_32 _IOW ('X', 57, struct space_resv_32)
011da44b	53
011da44b AV	54	#endif
011da44b AV	55
97ac7350	56	#endif /* _FALLOC_H_ */