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 FS_IOC_GETFLAGS 27 #define OCFS2_IOC_SETFLAGS FS_IOC_SETFLAGS 28 #define OCFS2_IOC32_GETFLAGS FS_IOC32_GETFLAGS 29 #define OCFS2_IOC32_SETFLAGS FS_IOC32_SETFLAGS 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 */ 80