| Tristan Ye | 9df5778 | 2010-03-02 13:59:42 +0800 | [diff] [blame] | 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 */ |