diff options
Diffstat (limited to 'fs/xfs/libxfs/xfs_attr_leaf.h')
| -rw-r--r-- | fs/xfs/libxfs/xfs_attr_leaf.h | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/fs/xfs/libxfs/xfs_attr_leaf.h b/fs/xfs/libxfs/xfs_attr_leaf.h new file mode 100644 index 000000000000..e2929da7c3ba --- /dev/null +++ b/fs/xfs/libxfs/xfs_attr_leaf.h | |||
| @@ -0,0 +1,108 @@ | |||
| 1 | /* | ||
| 2 | * Copyright (c) 2000,2002-2003,2005 Silicon Graphics, Inc. | ||
| 3 | * Copyright (c) 2013 Red Hat, Inc. | ||
| 4 | * All Rights Reserved. | ||
| 5 | * | ||
| 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 | ||
| 8 | * published by the Free Software Foundation. | ||
| 9 | * | ||
| 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. | ||
| 14 | * | ||
| 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 | ||
| 18 | */ | ||
| 19 | #ifndef __XFS_ATTR_LEAF_H__ | ||
| 20 | #define __XFS_ATTR_LEAF_H__ | ||
| 21 | |||
| 22 | struct attrlist; | ||
| 23 | struct attrlist_cursor_kern; | ||
| 24 | struct xfs_attr_list_context; | ||
| 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 | |||
| 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 | /* | ||
| 45 | * Internal routines when attribute fork size < XFS_LITINO(mp). | ||
| 46 | */ | ||
| 47 | void xfs_attr_shortform_create(struct xfs_da_args *args); | ||
| 48 | void xfs_attr_shortform_add(struct xfs_da_args *args, int forkoff); | ||
| 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); | ||
| 52 | int xfs_attr_shortform_remove(struct xfs_da_args *args); | ||
| 53 | int xfs_attr_shortform_list(struct xfs_attr_list_context *context); | ||
| 54 | int xfs_attr_shortform_allfit(struct xfs_buf *bp, struct xfs_inode *dp); | ||
| 55 | int xfs_attr_shortform_bytesfit(xfs_inode_t *dp, int bytes); | ||
| 56 | |||
| 57 | |||
| 58 | /* | ||
| 59 | * Internal routines when attribute fork size == XFS_LBSIZE(mp). | ||
| 60 | */ | ||
| 61 | int xfs_attr3_leaf_to_node(struct xfs_da_args *args); | ||
| 62 | int xfs_attr3_leaf_to_shortform(struct xfs_buf *bp, | ||
| 63 | struct xfs_da_args *args, int forkoff); | ||
| 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); | ||
| 67 | |||
| 68 | /* | ||
| 69 | * Routines used for growing the Btree. | ||
| 70 | */ | ||
| 71 | int xfs_attr3_leaf_split(struct xfs_da_state *state, | ||
| 72 | struct xfs_da_state_blk *oldblk, | ||
| 73 | struct xfs_da_state_blk *newblk); | ||
| 74 | int xfs_attr3_leaf_lookup_int(struct xfs_buf *leaf, | ||
| 75 | struct xfs_da_args *args); | ||
| 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, | ||
| 78 | struct xfs_da_args *args); | ||
| 79 | int xfs_attr3_leaf_remove(struct xfs_buf *leaf_buffer, | ||
| 80 | struct xfs_da_args *args); | ||
| 81 | int xfs_attr3_leaf_list_int(struct xfs_buf *bp, | ||
| 82 | struct xfs_attr_list_context *context); | ||
| 83 | |||
| 84 | /* | ||
| 85 | * Routines used for shrinking the Btree. | ||
| 86 | */ | ||
| 87 | int xfs_attr3_leaf_toosmall(struct xfs_da_state *state, int *retval); | ||
| 88 | void xfs_attr3_leaf_unbalance(struct xfs_da_state *state, | ||
| 89 | struct xfs_da_state_blk *drop_blk, | ||
| 90 | struct xfs_da_state_blk *save_blk); | ||
| 91 | int xfs_attr3_root_inactive(struct xfs_trans **trans, struct xfs_inode *dp); | ||
| 92 | |||
| 93 | /* | ||
| 94 | * Utility routines. | ||
| 95 | */ | ||
| 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); | ||
| 99 | int xfs_attr_leaf_newentsize(struct xfs_da_args *args, int *local); | ||
| 100 | int xfs_attr3_leaf_read(struct xfs_trans *tp, struct xfs_inode *dp, | ||
| 101 | xfs_dablk_t bno, xfs_daddr_t mappedbno, | ||
| 102 | struct xfs_buf **bpp); | ||
| 103 | void xfs_attr3_leaf_hdr_from_disk(struct xfs_attr3_icleaf_hdr *to, | ||
| 104 | struct xfs_attr_leafblock *from); | ||
| 105 | void xfs_attr3_leaf_hdr_to_disk(struct xfs_attr_leafblock *to, | ||
| 106 | struct xfs_attr3_icleaf_hdr *from); | ||
| 107 | |||
| 108 | #endif /* __XFS_ATTR_LEAF_H__ */ | ||