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
21#ifdef __KERNEL__
22
23struct xfs_mount;
24struct xfs_inode;
25struct xfs_perag;
26struct xfs_bmalloca;
 
27
28#ifdef XFS_FILESTREAMS_TRACE
29#define XFS_FSTRM_KTRACE_INFO		1
30#define XFS_FSTRM_KTRACE_AGSCAN		2
31#define XFS_FSTRM_KTRACE_AGPICK1	3
32#define XFS_FSTRM_KTRACE_AGPICK2	4
33#define XFS_FSTRM_KTRACE_UPDATE		5
34#define XFS_FSTRM_KTRACE_FREE		6
35#define	XFS_FSTRM_KTRACE_ITEM_LOOKUP	7
36#define	XFS_FSTRM_KTRACE_ASSOCIATE	8
37#define	XFS_FSTRM_KTRACE_MOVEAG		9
38#define	XFS_FSTRM_KTRACE_ORPHAN		10
39
40#define XFS_FSTRM_KTRACE_SIZE	16384
41extern ktrace_t *xfs_filestreams_trace_buf;
42
43#endif
44
45/* allocation selection flags */
46typedef enum xfs_fstrm_alloc {
47	XFS_PICK_USERDATA = 1,
48	XFS_PICK_LOWSPACE = 2,
49} xfs_fstrm_alloc_t;
50
51/* prototypes for filestream.c */
52int xfs_filestream_init(void);
53void xfs_filestream_uninit(void);
54int xfs_filestream_mount(struct xfs_mount *mp);
55void xfs_filestream_unmount(struct xfs_mount *mp);
56xfs_agnumber_t xfs_filestream_lookup_ag(struct xfs_inode *ip);
57int xfs_filestream_associate(struct xfs_inode *dip, struct xfs_inode *ip);
58void xfs_filestream_deassociate(struct xfs_inode *ip);
59int xfs_filestream_new_ag(struct xfs_bmalloca *ap, xfs_agnumber_t *agp);
60
61
62/* filestreams for the inode? */
63static inline int
64xfs_inode_is_filestream(
65	struct xfs_inode	*ip)
66{
67	return (ip->i_mount->m_flags & XFS_MOUNT_FILESTREAMS) ||
68		xfs_iflags_test(ip, XFS_IFILESTREAM) ||
69		(ip->i_d.di_flags & XFS_DIFLAG_FILESTREAM);
70}
71
72#endif /* __KERNEL__ */
73
74#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;
12struct xfs_alloc_arg;
13
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
14int xfs_filestream_mount(struct xfs_mount *mp);
15void xfs_filestream_unmount(struct xfs_mount *mp);
 
 
16void xfs_filestream_deassociate(struct xfs_inode *ip);
17int xfs_filestream_select_ag(struct xfs_bmalloca *ap,
18		struct xfs_alloc_arg *args, xfs_extlen_t *blen);
19
 
20static inline int
21xfs_inode_is_filestream(
22	struct xfs_inode	*ip)
23{
24	return xfs_has_filestreams(ip->i_mount) ||
25		(ip->i_diflags & XFS_DIFLAG_FILESTREAM);
 
26}
 
 
27
28#endif /* __XFS_FILESTREAM_H__ */