| David Chinner | 2a82b8b | 2007-07-11 11:09:12 +1000 | [diff] [blame] | 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 | |
| 23 | struct xfs_mount; |
| 24 | struct xfs_inode; |
| 25 | struct xfs_perag; |
| 26 | struct 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 |
| 41 | extern ktrace_t *xfs_filestreams_trace_buf; |
| 42 | |
| 43 | #endif |
| 44 | |
| David Chinner | 2a82b8b | 2007-07-11 11:09:12 +1000 | [diff] [blame] | 45 | /* allocation selection flags */ |
| 46 | typedef 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 */ |
| 52 | int xfs_filestream_init(void); |
| 53 | void xfs_filestream_uninit(void); |
| 54 | int xfs_filestream_mount(struct xfs_mount *mp); |
| 55 | void xfs_filestream_unmount(struct xfs_mount *mp); |
| David Chinner | 2a82b8b | 2007-07-11 11:09:12 +1000 | [diff] [blame] | 56 | xfs_agnumber_t xfs_filestream_lookup_ag(struct xfs_inode *ip); |
| 57 | int xfs_filestream_associate(struct xfs_inode *dip, struct xfs_inode *ip); |
| 58 | void xfs_filestream_deassociate(struct xfs_inode *ip); |
| 59 | int xfs_filestream_new_ag(struct xfs_bmalloca *ap, xfs_agnumber_t *agp); |
| 60 | |
| 61 | |
| 62 | /* filestreams for the inode? */ |
| Christoph Hellwig | b8f82a4 | 2009-11-14 16:17:22 +0000 | [diff] [blame] | 63 | static inline int |
| David Chinner | 2a82b8b | 2007-07-11 11:09:12 +1000 | [diff] [blame] | 64 | xfs_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__ */ |