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 */ 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) 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) 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 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