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Commit 9df5778e authored by Tristan Ye's avatar Tristan Ye Committed by Joel Becker
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Ocfs2: Move ocfs2 ioctl definitions from ocfs2_fs.h to newly added ocfs2_ioctl.h 



Currently we were adding ioctl cmds/structures for ocfs2 into ocfs2_fs.h
which was used for define ocfs2 on-disk layout. That sounds a little bit
confusing, and it may be quickly polluted espcially when growing the
ocfs2_info_request ioctls afterwards(it will grow i bet).

As a result, such OCFS2 IOCs do need to be placed somewhere other than
ocfs2_fs.h, a separated ocfs2_ioctl.h will be added to store such ioctl
structures and definitions which could also be used from userspace to
invoke ioctls call.

Signed-off-by: default avatarTristan Ye <tristan.ye@oracle.com>
Signed-off-by: default avatarJoel Becker <joel.becker@oracle.com>
parent 5051f768

fs/ocfs2/ioctl.h

+3 −3
Original line number Diff line number Diff line
@@ -7,10 +7,10 @@ 
 *

 */



#ifndef OCFS2_IOCTL_H

#define OCFS2_IOCTL_H

#ifndef OCFS2_IOCTL_PROTO_H

#define OCFS2_IOCTL_PROTO_H



long ocfs2_ioctl(struct file *filp, unsigned int cmd, unsigned long arg);

long ocfs2_compat_ioctl(struct file *file, unsigned cmd, unsigned long arg);



#endif /* OCFS2_IOCTL_H */
 
#endif /* OCFS2_IOCTL_PROTO_H */

fs/ocfs2/ocfs2.h

+1 −0
Original line number Diff line number Diff line
@@ -42,6 +42,7 @@ 


#include "ocfs2_fs.h"

#include "ocfs2_lockid.h"

#include "ocfs2_ioctl.h"



/* For struct ocfs2_blockcheck_stats */

#include "blockcheck.h"

fs/ocfs2/ocfs2_fs.h

+0 −57
Original line number Diff line number Diff line
@@ -253,63 +253,6 @@ 
						 * counted in an associated

						 * refcount tree */



/*

 * ioctl commands

 */

#define OCFS2_IOC_GETFLAGS	_IOR('f', 1, long)

#define OCFS2_IOC_SETFLAGS	_IOW('f', 2, long)

#define OCFS2_IOC32_GETFLAGS	_IOR('f', 1, int)

#define OCFS2_IOC32_SETFLAGS	_IOW('f', 2, int)



/*

 * Space reservation / allocation / free ioctls and argument structure

 * are designed to be compatible with XFS.

 *

 * ALLOCSP* and FREESP* are not and will never be supported, but are

 * included here for completeness.

 */

struct ocfs2_space_resv {

	__s16		l_type;

	__s16		l_whence;

	__s64		l_start;

	__s64		l_len;		/* len == 0 means until end of file */

	__s32		l_sysid;

	__u32		l_pid;

	__s32		l_pad[4];	/* reserve area			    */

};



#define OCFS2_IOC_ALLOCSP		_IOW ('X', 10, struct ocfs2_space_resv)

#define OCFS2_IOC_FREESP		_IOW ('X', 11, struct ocfs2_space_resv)

#define OCFS2_IOC_RESVSP		_IOW ('X', 40, struct ocfs2_space_resv)

#define OCFS2_IOC_UNRESVSP	_IOW ('X', 41, struct ocfs2_space_resv)

#define OCFS2_IOC_ALLOCSP64	_IOW ('X', 36, struct ocfs2_space_resv)

#define OCFS2_IOC_FREESP64	_IOW ('X', 37, struct ocfs2_space_resv)

#define OCFS2_IOC_RESVSP64	_IOW ('X', 42, struct ocfs2_space_resv)

#define OCFS2_IOC_UNRESVSP64	_IOW ('X', 43, struct ocfs2_space_resv)



/* Used to pass group descriptor data when online resize is done */

struct ocfs2_new_group_input {

	__u64 group;		/* Group descriptor's blkno. */

	__u32 clusters;		/* Total number of clusters in this group */

	__u32 frees;		/* Total free clusters in this group */

	__u16 chain;		/* Chain for this group */

	__u16 reserved1;

	__u32 reserved2;

};



#define OCFS2_IOC_GROUP_EXTEND	_IOW('o', 1, int)

#define OCFS2_IOC_GROUP_ADD	_IOW('o', 2,struct ocfs2_new_group_input)

#define OCFS2_IOC_GROUP_ADD64	_IOW('o', 3,struct ocfs2_new_group_input)



/* Used to pass 2 file names to reflink. */

struct reflink_arguments {

	__u64 old_path;

	__u64 new_path;

	__u64 preserve;

};

#define OCFS2_IOC_REFLINK	_IOW('o', 4, struct reflink_arguments)





/*

 * Journal Flags (ocfs2_dinode.id1.journal1.i_flags)

 */

fs/ocfs2/ocfs2_ioctl.h

0 → 100644
+79 −0
Original line number Diff line number Diff line 
/* -*- mode: c; c-basic-offset: 8; -*-

 * vim: noexpandtab sw=8 ts=8 sts=0:

 *

 * ocfs2_ioctl.h

 *

 * Defines OCFS2 ioctls.

 *

 * Copyright (C) 2010 Oracle.  All rights reserved.

 *

 * This program is free software; you can redistribute it and/or

 * modify it under the terms of the GNU General Public

 * License, version 2, as published by the Free Software Foundation.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

 * General Public License for more details.

 */



#ifndef OCFS2_IOCTL_H

#define OCFS2_IOCTL_H



/*

 * ioctl commands

 */

#define OCFS2_IOC_GETFLAGS	_IOR('f', 1, long)

#define OCFS2_IOC_SETFLAGS	_IOW('f', 2, long)

#define OCFS2_IOC32_GETFLAGS	_IOR('f', 1, int)

#define OCFS2_IOC32_SETFLAGS	_IOW('f', 2, int)



/*

 * Space reservation / allocation / free ioctls and argument structure

 * are designed to be compatible with XFS.

 *

 * ALLOCSP* and FREESP* are not and will never be supported, but are

 * included here for completeness.

 */

struct ocfs2_space_resv {

	__s16		l_type;

	__s16		l_whence;

	__s64		l_start;

	__s64		l_len;		/* len == 0 means until end of file */

	__s32		l_sysid;

	__u32		l_pid;

	__s32		l_pad[4];	/* reserve area			    */

};



#define OCFS2_IOC_ALLOCSP		_IOW ('X', 10, struct ocfs2_space_resv)

#define OCFS2_IOC_FREESP		_IOW ('X', 11, struct ocfs2_space_resv)

#define OCFS2_IOC_RESVSP		_IOW ('X', 40, struct ocfs2_space_resv)

#define OCFS2_IOC_UNRESVSP	_IOW ('X', 41, struct ocfs2_space_resv)

#define OCFS2_IOC_ALLOCSP64	_IOW ('X', 36, struct ocfs2_space_resv)

#define OCFS2_IOC_FREESP64	_IOW ('X', 37, struct ocfs2_space_resv)

#define OCFS2_IOC_RESVSP64	_IOW ('X', 42, struct ocfs2_space_resv)

#define OCFS2_IOC_UNRESVSP64	_IOW ('X', 43, struct ocfs2_space_resv)



/* Used to pass group descriptor data when online resize is done */

struct ocfs2_new_group_input {

	__u64 group;		/* Group descriptor's blkno. */

	__u32 clusters;		/* Total number of clusters in this group */

	__u32 frees;		/* Total free clusters in this group */

	__u16 chain;		/* Chain for this group */

	__u16 reserved1;

	__u32 reserved2;

};



#define OCFS2_IOC_GROUP_EXTEND	_IOW('o', 1, int)

#define OCFS2_IOC_GROUP_ADD	_IOW('o', 2,struct ocfs2_new_group_input)

#define OCFS2_IOC_GROUP_ADD64	_IOW('o', 3,struct ocfs2_new_group_input)



/* Used to pass 2 file names to reflink. */

struct reflink_arguments {

	__u64 old_path;

	__u64 new_path;

	__u64 preserve;

};

#define OCFS2_IOC_REFLINK	_IOW('o', 4, struct reflink_arguments)



#endif /* OCFS2_IOCTL_H */