59 строки
1.7 KiB
C
59 строки
1.7 KiB
C
/* 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)
|
|
|
|
int compat_ioctl_preallocate(struct file *, int, struct space_resv_32 __user *);
|
|
|
|
#endif
|
|
|
|
#endif /* _FALLOC_H_ */
|