Commit | Line | Data |
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1da177e4 | 1 | /* |
7b718769 | 2 | * Copyright (c) 2000,2002-2003,2005 Silicon Graphics, Inc. |
517c2220 | 3 | * Copyright (c) 2013 Red Hat, Inc. |
aa82daa0 | 4 | * All Rights Reserved. |
1da177e4 | 5 | * |
7b718769 NS |
6 | * This program is free software; you can redistribute it and/or |
7 | * modify it under the terms of the GNU General Public License as | |
1da177e4 LT |
8 | * published by the Free Software Foundation. |
9 | * | |
7b718769 NS |
10 | * This program is distributed in the hope that it would be useful, |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | * GNU General Public License for more details. | |
1da177e4 | 14 | * |
7b718769 NS |
15 | * You should have received a copy of the GNU General Public License |
16 | * along with this program; if not, write the Free Software Foundation, | |
17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
1da177e4 LT |
18 | */ |
19 | #ifndef __XFS_ATTR_LEAF_H__ | |
20 | #define __XFS_ATTR_LEAF_H__ | |
21 | ||
1da177e4 LT |
22 | struct attrlist; |
23 | struct attrlist_cursor_kern; | |
ad9b463a | 24 | struct xfs_attr_list_context; |
1da177e4 LT |
25 | struct xfs_da_args; |
26 | struct xfs_da_state; | |
27 | struct xfs_da_state_blk; | |
28 | struct xfs_inode; | |
29 | struct xfs_trans; | |
30 | ||
1da177e4 LT |
31 | /* |
32 | * Used to keep a list of "remote value" extents when unlinking an inode. | |
33 | */ | |
34 | typedef struct xfs_attr_inactive_list { | |
35 | xfs_dablk_t valueblk; /* block number of value bytes */ | |
36 | int valuelen; /* number of bytes in value */ | |
37 | } xfs_attr_inactive_list_t; | |
38 | ||
39 | ||
40 | /*======================================================================== | |
41 | * Function prototypes for the kernel. | |
42 | *========================================================================*/ | |
43 | ||
44 | /* | |
d8cc890d | 45 | * Internal routines when attribute fork size < XFS_LITINO(mp). |
1da177e4 | 46 | */ |
d8cc890d NS |
47 | void xfs_attr_shortform_create(struct xfs_da_args *args); |
48 | void xfs_attr_shortform_add(struct xfs_da_args *args, int forkoff); | |
1da177e4 LT |
49 | int xfs_attr_shortform_lookup(struct xfs_da_args *args); |
50 | int xfs_attr_shortform_getvalue(struct xfs_da_args *args); | |
51 | int xfs_attr_shortform_to_leaf(struct xfs_da_args *args); | |
d8cc890d | 52 | int xfs_attr_shortform_remove(struct xfs_da_args *args); |
1da177e4 | 53 | int xfs_attr_shortform_list(struct xfs_attr_list_context *context); |
1d9025e5 | 54 | int xfs_attr_shortform_allfit(struct xfs_buf *bp, struct xfs_inode *dp); |
d8cc890d | 55 | int xfs_attr_shortform_bytesfit(xfs_inode_t *dp, int bytes); |
6dfe5a04 | 56 | void xfs_attr_fork_remove(struct xfs_inode *ip, struct xfs_trans *tp); |
1da177e4 LT |
57 | |
58 | /* | |
d8cc890d | 59 | * Internal routines when attribute fork size == XFS_LBSIZE(mp). |
1da177e4 | 60 | */ |
517c2220 DC |
61 | int xfs_attr3_leaf_to_node(struct xfs_da_args *args); |
62 | int xfs_attr3_leaf_to_shortform(struct xfs_buf *bp, | |
d8cc890d | 63 | struct xfs_da_args *args, int forkoff); |
517c2220 DC |
64 | int xfs_attr3_leaf_clearflag(struct xfs_da_args *args); |
65 | int xfs_attr3_leaf_setflag(struct xfs_da_args *args); | |
66 | int xfs_attr3_leaf_flipflags(struct xfs_da_args *args); | |
1da177e4 LT |
67 | |
68 | /* | |
69 | * Routines used for growing the Btree. | |
70 | */ | |
517c2220 | 71 | int xfs_attr3_leaf_split(struct xfs_da_state *state, |
1da177e4 LT |
72 | struct xfs_da_state_blk *oldblk, |
73 | struct xfs_da_state_blk *newblk); | |
517c2220 | 74 | int xfs_attr3_leaf_lookup_int(struct xfs_buf *leaf, |
1da177e4 | 75 | struct xfs_da_args *args); |
517c2220 DC |
76 | int xfs_attr3_leaf_getvalue(struct xfs_buf *bp, struct xfs_da_args *args); |
77 | int xfs_attr3_leaf_add(struct xfs_buf *leaf_buffer, | |
1da177e4 | 78 | struct xfs_da_args *args); |
517c2220 | 79 | int xfs_attr3_leaf_remove(struct xfs_buf *leaf_buffer, |
1da177e4 | 80 | struct xfs_da_args *args); |
517c2220 | 81 | int xfs_attr3_leaf_list_int(struct xfs_buf *bp, |
1da177e4 LT |
82 | struct xfs_attr_list_context *context); |
83 | ||
84 | /* | |
85 | * Routines used for shrinking the Btree. | |
86 | */ | |
517c2220 DC |
87 | int xfs_attr3_leaf_toosmall(struct xfs_da_state *state, int *retval); |
88 | void xfs_attr3_leaf_unbalance(struct xfs_da_state *state, | |
1da177e4 LT |
89 | struct xfs_da_state_blk *drop_blk, |
90 | struct xfs_da_state_blk *save_blk); | |
517c2220 | 91 | int xfs_attr3_root_inactive(struct xfs_trans **trans, struct xfs_inode *dp); |
1da177e4 LT |
92 | |
93 | /* | |
94 | * Utility routines. | |
95 | */ | |
1d9025e5 DC |
96 | xfs_dahash_t xfs_attr_leaf_lasthash(struct xfs_buf *bp, int *count); |
97 | int xfs_attr_leaf_order(struct xfs_buf *leaf1_bp, | |
98 | struct xfs_buf *leaf2_bp); | |
c59f0ad2 | 99 | int xfs_attr_leaf_newentsize(struct xfs_da_args *args, int *local); |
517c2220 | 100 | int xfs_attr3_leaf_read(struct xfs_trans *tp, struct xfs_inode *dp, |
d9392a4b DC |
101 | xfs_dablk_t bno, xfs_daddr_t mappedbno, |
102 | struct xfs_buf **bpp); | |
2f661241 BF |
103 | void xfs_attr3_leaf_hdr_from_disk(struct xfs_da_geometry *geo, |
104 | struct xfs_attr3_icleaf_hdr *to, | |
517c2220 | 105 | struct xfs_attr_leafblock *from); |
2f661241 BF |
106 | void xfs_attr3_leaf_hdr_to_disk(struct xfs_da_geometry *geo, |
107 | struct xfs_attr_leafblock *to, | |
d386b32b | 108 | struct xfs_attr3_icleaf_hdr *from); |
1813dd64 | 109 | |
1da177e4 | 110 | #endif /* __XFS_ATTR_LEAF_H__ */ |