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 | |