2 * Copyright (c) 2006-2007 Silicon Graphics, Inc.
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.
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.
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
18 #ifndef __XFS_FILESTREAM_H__
19 #define __XFS_FILESTREAM_H__
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
38 #define XFS_FSTRM_KTRACE_SIZE 16384
39 extern ktrace_t *xfs_filestreams_trace_buf;
43 /* allocation selection flags */
44 typedef enum xfs_fstrm_alloc {
45 XFS_PICK_USERDATA = 1,
46 XFS_PICK_LOWSPACE = 2,
49 /* prototypes for filestream.c */
50 int xfs_filestream_init(void);
51 void xfs_filestream_uninit(void);
52 int xfs_filestream_mount(struct xfs_mount *mp);
53 void xfs_filestream_unmount(struct xfs_mount *mp);
54 xfs_agnumber_t xfs_filestream_lookup_ag(struct xfs_inode *ip);
55 int xfs_filestream_associate(struct xfs_inode *dip, struct xfs_inode *ip);
56 void xfs_filestream_deassociate(struct xfs_inode *ip);
57 int xfs_filestream_new_ag(struct xfs_bmalloca *ap, xfs_agnumber_t *agp);
60 /* filestreams for the inode? */
62 xfs_inode_is_filestream(
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);
70 #endif /* __XFS_FILESTREAM_H__ */