Commit | Line | Data |
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1da177e4 | 1 | /* |
1e69dd0e | 2 | * Copyright (c) 2000-2006 Silicon Graphics, Inc. |
7b718769 | 3 | * All Rights Reserved. |
1da177e4 | 4 | * |
7b718769 NS |
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 | |
1da177e4 LT |
7 | * published by the Free Software Foundation. |
8 | * | |
7b718769 NS |
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. | |
1da177e4 | 13 | * |
7b718769 NS |
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 | |
1da177e4 LT |
17 | */ |
18 | #ifndef __XFS_RW_H__ | |
19 | #define __XFS_RW_H__ | |
20 | ||
21 | struct xfs_buf; | |
22 | struct xfs_inode; | |
23 | struct xfs_mount; | |
24 | ||
1da177e4 LT |
25 | /* |
26 | * Convert the given file system block to a disk block. | |
27 | * We have to treat it differently based on whether the | |
28 | * file is a real time file or not, because the bmap code | |
29 | * does. | |
30 | */ | |
a844f451 NS |
31 | static inline xfs_daddr_t |
32 | xfs_fsb_to_db(struct xfs_inode *ip, xfs_fsblock_t fsb) | |
33 | { | |
71ddabb9 | 34 | return (XFS_IS_REALTIME_INODE(ip) ? \ |
1da177e4 | 35 | (xfs_daddr_t)XFS_FSB_TO_BB((ip)->i_mount, (fsb)) : \ |
a844f451 NS |
36 | XFS_FSB_TO_DADDR((ip)->i_mount, (fsb))); |
37 | } | |
1da177e4 | 38 | |
92dfe8d2 DC |
39 | /* |
40 | * Flags for xfs_free_eofblocks | |
41 | */ | |
42 | #define XFS_FREE_EOF_LOCK (1<<0) | |
43 | #define XFS_FREE_EOF_NOLOCK (1<<1) | |
44 | ||
957d0ebe DC |
45 | |
46 | /* | |
47 | * helper function to extract extent size hint from inode | |
48 | */ | |
49 | STATIC_INLINE xfs_extlen_t | |
50 | xfs_get_extsz_hint( | |
51 | xfs_inode_t *ip) | |
52 | { | |
53 | xfs_extlen_t extsz; | |
54 | ||
71ddabb9 | 55 | if (unlikely(XFS_IS_REALTIME_INODE(ip))) { |
957d0ebe DC |
56 | extsz = (ip->i_d.di_flags & XFS_DIFLAG_EXTSIZE) |
57 | ? ip->i_d.di_extsize | |
58 | : ip->i_mount->m_sb.sb_rextsize; | |
59 | ASSERT(extsz); | |
60 | } else { | |
61 | extsz = (ip->i_d.di_flags & XFS_DIFLAG_EXTSIZE) | |
62 | ? ip->i_d.di_extsize : 0; | |
63 | } | |
64 | return extsz; | |
65 | } | |
66 | ||
1da177e4 LT |
67 | /* |
68 | * Prototypes for functions in xfs_rw.c. | |
69 | */ | |
a844f451 | 70 | extern int xfs_write_clear_setuid(struct xfs_inode *ip); |
1e69dd0e | 71 | extern int xfs_write_sync_logforce(struct xfs_mount *mp, struct xfs_inode *ip); |
a844f451 NS |
72 | extern int xfs_bwrite(struct xfs_mount *mp, struct xfs_buf *bp); |
73 | extern int xfs_bioerror(struct xfs_buf *bp); | |
74 | extern int xfs_bioerror_relse(struct xfs_buf *bp); | |
75 | extern int xfs_read_buf(struct xfs_mount *mp, xfs_buftarg_t *btp, | |
76 | xfs_daddr_t blkno, int len, uint flags, | |
77 | struct xfs_buf **bpp); | |
78 | extern void xfs_ioerror_alert(char *func, struct xfs_mount *mp, | |
79 | xfs_buf_t *bp, xfs_daddr_t blkno); | |
1da177e4 LT |
80 | |
81 | /* | |
82 | * Prototypes for functions in xfs_vnodeops.c. | |
83 | */ | |
92dfe8d2 DC |
84 | extern int xfs_free_eofblocks(struct xfs_mount *mp, struct xfs_inode *ip, |
85 | int flags); | |
1da177e4 LT |
86 | |
87 | #endif /* __XFS_RW_H__ */ |