1 // SPDX-License-Identifier: GPL-2.0+
3 * Copyright (C) 2016 Oracle. All Rights Reserved.
4 * Author: Darrick J. Wong <darrick.wong@oracle.com>
10 xfs_rmap_ino_bmbt_owner(
11 struct xfs_owner_info *oi,
17 oi->oi_flags = XFS_OWNER_INFO_BMBT_BLOCK;
18 if (whichfork == XFS_ATTR_FORK)
19 oi->oi_flags |= XFS_OWNER_INFO_ATTR_FORK;
24 struct xfs_owner_info *oi,
30 oi->oi_offset = offset;
32 if (whichfork == XFS_ATTR_FORK)
33 oi->oi_flags |= XFS_OWNER_INFO_ATTR_FORK;
37 xfs_rmap_should_skip_owner_update(
38 const struct xfs_owner_info *oi)
40 return oi->oi_owner == XFS_RMAP_OWN_NULL;
43 /* Reverse mapping functions. */
48 xfs_rmap_irec_offset_pack(
49 const struct xfs_rmap_irec *irec)
53 x = XFS_RMAP_OFF(irec->rm_offset);
54 if (irec->rm_flags & XFS_RMAP_ATTR_FORK)
55 x |= XFS_RMAP_OFF_ATTR_FORK;
56 if (irec->rm_flags & XFS_RMAP_BMBT_BLOCK)
57 x |= XFS_RMAP_OFF_BMBT_BLOCK;
58 if (irec->rm_flags & XFS_RMAP_UNWRITTEN)
59 x |= XFS_RMAP_OFF_UNWRITTEN;
64 xfs_rmap_irec_offset_unpack(
66 struct xfs_rmap_irec *irec)
68 if (offset & ~(XFS_RMAP_OFF_MASK | XFS_RMAP_OFF_FLAGS))
70 irec->rm_offset = XFS_RMAP_OFF(offset);
71 if (offset & XFS_RMAP_OFF_ATTR_FORK)
72 irec->rm_flags |= XFS_RMAP_ATTR_FORK;
73 if (offset & XFS_RMAP_OFF_BMBT_BLOCK)
74 irec->rm_flags |= XFS_RMAP_BMBT_BLOCK;
75 if (offset & XFS_RMAP_OFF_UNWRITTEN)
76 irec->rm_flags |= XFS_RMAP_UNWRITTEN;
81 xfs_owner_info_unpack(
82 const struct xfs_owner_info *oinfo,
89 *owner = oinfo->oi_owner;
90 *offset = oinfo->oi_offset;
91 if (oinfo->oi_flags & XFS_OWNER_INFO_ATTR_FORK)
92 r |= XFS_RMAP_ATTR_FORK;
93 if (oinfo->oi_flags & XFS_OWNER_INFO_BMBT_BLOCK)
94 r |= XFS_RMAP_BMBT_BLOCK;
100 struct xfs_owner_info *oinfo,
105 oinfo->oi_owner = owner;
106 oinfo->oi_offset = XFS_RMAP_OFF(offset);
108 if (flags & XFS_RMAP_ATTR_FORK)
109 oinfo->oi_flags |= XFS_OWNER_INFO_ATTR_FORK;
110 if (flags & XFS_RMAP_BMBT_BLOCK)
111 oinfo->oi_flags |= XFS_OWNER_INFO_BMBT_BLOCK;
114 int xfs_rmap_alloc(struct xfs_trans *tp, struct xfs_buf *agbp,
115 xfs_agnumber_t agno, xfs_agblock_t bno, xfs_extlen_t len,
116 const struct xfs_owner_info *oinfo);
117 int xfs_rmap_free(struct xfs_trans *tp, struct xfs_buf *agbp,
118 xfs_agnumber_t agno, xfs_agblock_t bno, xfs_extlen_t len,
119 const struct xfs_owner_info *oinfo);
121 int xfs_rmap_lookup_le(struct xfs_btree_cur *cur, xfs_agblock_t bno,
122 xfs_extlen_t len, uint64_t owner, uint64_t offset,
123 unsigned int flags, int *stat);
124 int xfs_rmap_lookup_eq(struct xfs_btree_cur *cur, xfs_agblock_t bno,
125 xfs_extlen_t len, uint64_t owner, uint64_t offset,
126 unsigned int flags, int *stat);
127 int xfs_rmap_insert(struct xfs_btree_cur *rcur, xfs_agblock_t agbno,
128 xfs_extlen_t len, uint64_t owner, uint64_t offset,
130 int xfs_rmap_get_rec(struct xfs_btree_cur *cur, struct xfs_rmap_irec *irec,
133 typedef int (*xfs_rmap_query_range_fn)(
134 struct xfs_btree_cur *cur,
135 struct xfs_rmap_irec *rec,
138 int xfs_rmap_query_range(struct xfs_btree_cur *cur,
139 struct xfs_rmap_irec *low_rec, struct xfs_rmap_irec *high_rec,
140 xfs_rmap_query_range_fn fn, void *priv);
141 int xfs_rmap_query_all(struct xfs_btree_cur *cur, xfs_rmap_query_range_fn fn,
144 enum xfs_rmap_intent_type {
148 XFS_RMAP_UNMAP_SHARED,
150 XFS_RMAP_CONVERT_SHARED,
155 struct xfs_rmap_intent {
156 struct list_head ri_list;
157 enum xfs_rmap_intent_type ri_type;
160 struct xfs_bmbt_irec ri_bmap;
163 /* functions for updating the rmapbt based on bmbt map/unmap operations */
164 int xfs_rmap_map_extent(struct xfs_trans *tp, struct xfs_inode *ip,
165 int whichfork, struct xfs_bmbt_irec *imap);
166 int xfs_rmap_unmap_extent(struct xfs_trans *tp, struct xfs_inode *ip,
167 int whichfork, struct xfs_bmbt_irec *imap);
168 int xfs_rmap_convert_extent(struct xfs_mount *mp, struct xfs_trans *tp,
169 struct xfs_inode *ip, int whichfork,
170 struct xfs_bmbt_irec *imap);
171 int xfs_rmap_alloc_extent(struct xfs_trans *tp, xfs_agnumber_t agno,
172 xfs_agblock_t bno, xfs_extlen_t len, uint64_t owner);
173 int xfs_rmap_free_extent(struct xfs_trans *tp, xfs_agnumber_t agno,
174 xfs_agblock_t bno, xfs_extlen_t len, uint64_t owner);
176 void xfs_rmap_finish_one_cleanup(struct xfs_trans *tp,
177 struct xfs_btree_cur *rcur, int error);
178 int xfs_rmap_finish_one(struct xfs_trans *tp, enum xfs_rmap_intent_type type,
179 uint64_t owner, int whichfork, xfs_fileoff_t startoff,
180 xfs_fsblock_t startblock, xfs_filblks_t blockcount,
181 xfs_exntst_t state, struct xfs_btree_cur **pcur);
183 int xfs_rmap_find_left_neighbor(struct xfs_btree_cur *cur, xfs_agblock_t bno,
184 uint64_t owner, uint64_t offset, unsigned int flags,
185 struct xfs_rmap_irec *irec, int *stat);
186 int xfs_rmap_lookup_le_range(struct xfs_btree_cur *cur, xfs_agblock_t bno,
187 uint64_t owner, uint64_t offset, unsigned int flags,
188 struct xfs_rmap_irec *irec, int *stat);
189 int xfs_rmap_compare(const struct xfs_rmap_irec *a,
190 const struct xfs_rmap_irec *b);
192 int xfs_rmap_btrec_to_irec(union xfs_btree_rec *rec,
193 struct xfs_rmap_irec *irec);
194 int xfs_rmap_has_record(struct xfs_btree_cur *cur, xfs_agblock_t bno,
195 xfs_extlen_t len, bool *exists);
196 int xfs_rmap_record_exists(struct xfs_btree_cur *cur, xfs_agblock_t bno,
197 xfs_extlen_t len, const struct xfs_owner_info *oinfo,
199 int xfs_rmap_has_other_keys(struct xfs_btree_cur *cur, xfs_agblock_t bno,
200 xfs_extlen_t len, const struct xfs_owner_info *oinfo,
202 int xfs_rmap_map_raw(struct xfs_btree_cur *cur, struct xfs_rmap_irec *rmap);
204 extern const struct xfs_owner_info XFS_RMAP_OINFO_SKIP_UPDATE;
205 extern const struct xfs_owner_info XFS_RMAP_OINFO_ANY_OWNER;
206 extern const struct xfs_owner_info XFS_RMAP_OINFO_FS;
207 extern const struct xfs_owner_info XFS_RMAP_OINFO_LOG;
208 extern const struct xfs_owner_info XFS_RMAP_OINFO_AG;
209 extern const struct xfs_owner_info XFS_RMAP_OINFO_INOBT;
210 extern const struct xfs_owner_info XFS_RMAP_OINFO_INODES;
211 extern const struct xfs_owner_info XFS_RMAP_OINFO_REFC;
212 extern const struct xfs_owner_info XFS_RMAP_OINFO_COW;
214 #endif /* __XFS_RMAP_H__ */