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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364/* 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)
/* * Mask of all supported fallocate modes. Only one can be set at a time. * * In addition to the mode bit, the mode argument can also encode flags. * FALLOC_FL_KEEP_SIZE is the only supported flag so far. */#define FALLOC_FL_MODE_MASK (FALLOC_FL_ALLOCATE_RANGE | \ FALLOC_FL_PUNCH_HOLE | \ FALLOC_FL_COLLAPSE_RANGE | \ FALLOC_FL_ZERO_RANGE | \ FALLOC_FL_INSERT_RANGE | \ FALLOC_FL_UNSHARE_RANGE | \ FALLOC_FL_WRITE_ZEROES)
/* 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_ */