1/*
 2 * Copyright (c) 2006-2007 Silicon Graphics, Inc.
 3 * All Rights Reserved.
 4 *
 5 * This program is free software; you can redistribute it and/or
 6 * modify it under the terms of the GNU General Public License as
 7 * published by the Free Software Foundation.
 8 *
 9 * This program is distributed in the hope that it would be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write the Free Software Foundation,
16 * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
17 */
18#ifndef __XFS_FILESTREAM_H__
19#define __XFS_FILESTREAM_H__
20
21struct xfs_mount;
22struct xfs_inode;
23struct xfs_perag;
24struct xfs_bmalloca;
25
26#ifdef XFS_FILESTREAMS_TRACE
27#define XFS_FSTRM_KTRACE_INFO		1
28#define XFS_FSTRM_KTRACE_AGSCAN		2
29#define XFS_FSTRM_KTRACE_AGPICK1	3
30#define XFS_FSTRM_KTRACE_AGPICK2	4
31#define XFS_FSTRM_KTRACE_UPDATE		5
32#define XFS_FSTRM_KTRACE_FREE		6
33#define	XFS_FSTRM_KTRACE_ITEM_LOOKUP	7
34#define	XFS_FSTRM_KTRACE_ASSOCIATE	8
35#define	XFS_FSTRM_KTRACE_MOVEAG		9
36#define	XFS_FSTRM_KTRACE_ORPHAN		10
37
38#define XFS_FSTRM_KTRACE_SIZE	16384
39extern ktrace_t *xfs_filestreams_trace_buf;
40
41#endif
42
43/* allocation selection flags */
44typedef enum xfs_fstrm_alloc {
45	XFS_PICK_USERDATA = 1,
46	XFS_PICK_LOWSPACE = 2,
47} xfs_fstrm_alloc_t;
48
49/* prototypes for filestream.c */
50int xfs_filestream_init(void);
51void xfs_filestream_uninit(void);
52int xfs_filestream_mount(struct xfs_mount *mp);
53void xfs_filestream_unmount(struct xfs_mount *mp);
54xfs_agnumber_t xfs_filestream_lookup_ag(struct xfs_inode *ip);
55int xfs_filestream_associate(struct xfs_inode *dip, struct xfs_inode *ip);
56void xfs_filestream_deassociate(struct xfs_inode *ip);
 
57int xfs_filestream_new_ag(struct xfs_bmalloca *ap, xfs_agnumber_t *agp);
 
58
59
60/* filestreams for the inode? */
61static inline int
62xfs_inode_is_filestream(
63	struct xfs_inode	*ip)
64{
65	return (ip->i_mount->m_flags & XFS_MOUNT_FILESTREAMS) ||
66		xfs_iflags_test(ip, XFS_IFILESTREAM) ||
67		(ip->i_d.di_flags & XFS_DIFLAG_FILESTREAM);
68}
69
70#endif /* __XFS_FILESTREAM_H__ */

 1// SPDX-License-Identifier: GPL-2.0
 2/*
 3 * Copyright (c) 2006-2007 Silicon Graphics, Inc.
 4 * All Rights Reserved.
 
 
 
 
 
 
 
 
 
 
 
 
 
 5 */
 6#ifndef __XFS_FILESTREAM_H__
 7#define __XFS_FILESTREAM_H__
 8
 9struct xfs_mount;
10struct xfs_inode;
 
11struct xfs_bmalloca;
12
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
13int xfs_filestream_mount(struct xfs_mount *mp);
14void xfs_filestream_unmount(struct xfs_mount *mp);
 
 
15void xfs_filestream_deassociate(struct xfs_inode *ip);
16xfs_agnumber_t xfs_filestream_lookup_ag(struct xfs_inode *ip);
17int xfs_filestream_new_ag(struct xfs_bmalloca *ap, xfs_agnumber_t *agp);
18int xfs_filestream_peek_ag(struct xfs_mount *mp, xfs_agnumber_t agno);
19
 
 
20static inline int
21xfs_inode_is_filestream(
22	struct xfs_inode	*ip)
23{
24	return (ip->i_mount->m_flags & XFS_MOUNT_FILESTREAMS) ||
25		(ip->i_diflags & XFS_DIFLAG_FILESTREAM);
 
26}
27
28#endif /* __XFS_FILESTREAM_H__ */