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1 | /* -*- mode: c; c-basic-offset: 8; -*- |
2 | * vim: noexpandtab sw=8 ts=8 sts=0: | |
3 | * | |
4 | * ocfs2_ioctl.h | |
5 | * | |
6 | * Defines OCFS2 ioctls. | |
7 | * | |
8 | * Copyright (C) 2010 Oracle. All rights reserved. | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or | |
11 | * modify it under the terms of the GNU General Public | |
12 | * License, version 2, as published by the Free Software Foundation. | |
13 | * | |
14 | * This program is distributed in the hope that it will be useful, | |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
17 | * General Public License for more details. | |
18 | */ | |
19 | ||
20 | #ifndef OCFS2_IOCTL_H | |
21 | #define OCFS2_IOCTL_H | |
22 | ||
23 | /* | |
24 | * ioctl commands | |
25 | */ | |
26 | #define OCFS2_IOC_GETFLAGS _IOR('f', 1, long) | |
27 | #define OCFS2_IOC_SETFLAGS _IOW('f', 2, long) | |
28 | #define OCFS2_IOC32_GETFLAGS _IOR('f', 1, int) | |
29 | #define OCFS2_IOC32_SETFLAGS _IOW('f', 2, int) | |
30 | ||
31 | /* | |
32 | * Space reservation / allocation / free ioctls and argument structure | |
33 | * are designed to be compatible with XFS. | |
34 | * | |
35 | * ALLOCSP* and FREESP* are not and will never be supported, but are | |
36 | * included here for completeness. | |
37 | */ | |
38 | struct ocfs2_space_resv { | |
39 | __s16 l_type; | |
40 | __s16 l_whence; | |
41 | __s64 l_start; | |
42 | __s64 l_len; /* len == 0 means until end of file */ | |
43 | __s32 l_sysid; | |
44 | __u32 l_pid; | |
45 | __s32 l_pad[4]; /* reserve area */ | |
46 | }; | |
47 | ||
48 | #define OCFS2_IOC_ALLOCSP _IOW ('X', 10, struct ocfs2_space_resv) | |
49 | #define OCFS2_IOC_FREESP _IOW ('X', 11, struct ocfs2_space_resv) | |
50 | #define OCFS2_IOC_RESVSP _IOW ('X', 40, struct ocfs2_space_resv) | |
51 | #define OCFS2_IOC_UNRESVSP _IOW ('X', 41, struct ocfs2_space_resv) | |
52 | #define OCFS2_IOC_ALLOCSP64 _IOW ('X', 36, struct ocfs2_space_resv) | |
53 | #define OCFS2_IOC_FREESP64 _IOW ('X', 37, struct ocfs2_space_resv) | |
54 | #define OCFS2_IOC_RESVSP64 _IOW ('X', 42, struct ocfs2_space_resv) | |
55 | #define OCFS2_IOC_UNRESVSP64 _IOW ('X', 43, struct ocfs2_space_resv) | |
56 | ||
57 | /* Used to pass group descriptor data when online resize is done */ | |
58 | struct ocfs2_new_group_input { | |
59 | __u64 group; /* Group descriptor's blkno. */ | |
60 | __u32 clusters; /* Total number of clusters in this group */ | |
61 | __u32 frees; /* Total free clusters in this group */ | |
62 | __u16 chain; /* Chain for this group */ | |
63 | __u16 reserved1; | |
64 | __u32 reserved2; | |
65 | }; | |
66 | ||
67 | #define OCFS2_IOC_GROUP_EXTEND _IOW('o', 1, int) | |
68 | #define OCFS2_IOC_GROUP_ADD _IOW('o', 2,struct ocfs2_new_group_input) | |
69 | #define OCFS2_IOC_GROUP_ADD64 _IOW('o', 3,struct ocfs2_new_group_input) | |
70 | ||
71 | /* Used to pass 2 file names to reflink. */ | |
72 | struct reflink_arguments { | |
73 | __u64 old_path; | |
74 | __u64 new_path; | |
75 | __u64 preserve; | |
76 | }; | |
77 | #define OCFS2_IOC_REFLINK _IOW('o', 4, struct reflink_arguments) | |
78 | ||
79 | #endif /* OCFS2_IOCTL_H */ |