Contributors: 8
Author Tokens Token Proportion Commits Commit Proportion
Ankit Jain 83 58.87% 1 12.50%
Christoph Hellwig 24 17.02% 1 12.50%
Al Viro 19 13.48% 1 12.50%
Amit Arora 7 4.96% 1 12.50%
Namjae Jeon 3 2.13% 1 12.50%
David Howells 3 2.13% 1 12.50%
Darrick J. Wong 1 0.71% 1 12.50%
Greg Kroah-Hartman 1 0.71% 1 12.50%
Total 141 8


/* 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_ */