1 // SPDX-License-Identifier: GPL-2.0+
3 * Copyright (C) 2016 Oracle. All Rights Reserved.
4 * Author: Darrick J. Wong <darrick.wong@oracle.com>
12 xfs_rmap_ino_bmbt_owner(
13 struct xfs_owner_info *oi,
19 oi->oi_flags = XFS_OWNER_INFO_BMBT_BLOCK;
20 if (whichfork == XFS_ATTR_FORK)
21 oi->oi_flags |= XFS_OWNER_INFO_ATTR_FORK;
26 struct xfs_owner_info *oi,
32 oi->oi_offset = offset;
34 if (whichfork == XFS_ATTR_FORK)
35 oi->oi_flags |= XFS_OWNER_INFO_ATTR_FORK;
39 xfs_rmap_should_skip_owner_update(
40 const struct xfs_owner_info *oi)
42 return oi->oi_owner == XFS_RMAP_OWN_NULL;
45 /* Reverse mapping functions. */
50 xfs_rmap_irec_offset_pack(
51 const struct xfs_rmap_irec *irec)
55 x = XFS_RMAP_OFF(irec->rm_offset);
56 if (irec->rm_flags & XFS_RMAP_ATTR_FORK)
57 x |= XFS_RMAP_OFF_ATTR_FORK;
58 if (irec->rm_flags & XFS_RMAP_BMBT_BLOCK)
59 x |= XFS_RMAP_OFF_BMBT_BLOCK;
60 if (irec->rm_flags & XFS_RMAP_UNWRITTEN)
61 x |= XFS_RMAP_OFF_UNWRITTEN;
66 xfs_rmap_irec_offset_unpack(
68 struct xfs_rmap_irec *irec)
70 if (offset & ~(XFS_RMAP_OFF_MASK | XFS_RMAP_OFF_FLAGS))
72 irec->rm_offset = XFS_RMAP_OFF(offset);
74 if (offset & XFS_RMAP_OFF_ATTR_FORK)
75 irec->rm_flags |= XFS_RMAP_ATTR_FORK;
76 if (offset & XFS_RMAP_OFF_BMBT_BLOCK)
77 irec->rm_flags |= XFS_RMAP_BMBT_BLOCK;
78 if (offset & XFS_RMAP_OFF_UNWRITTEN)
79 irec->rm_flags |= XFS_RMAP_UNWRITTEN;
84 xfs_owner_info_unpack(
85 const struct xfs_owner_info *oinfo,
92 *owner = oinfo->oi_owner;
93 *offset = oinfo->oi_offset;
94 if (oinfo->oi_flags & XFS_OWNER_INFO_ATTR_FORK)
95 r |= XFS_RMAP_ATTR_FORK;
96 if (oinfo->oi_flags & XFS_OWNER_INFO_BMBT_BLOCK)
97 r |= XFS_RMAP_BMBT_BLOCK;
103 struct xfs_owner_info *oinfo,
108 oinfo->oi_owner = owner;
109 oinfo->oi_offset = XFS_RMAP_OFF(offset);
111 if (flags & XFS_RMAP_ATTR_FORK)
112 oinfo->oi_flags |= XFS_OWNER_INFO_ATTR_FORK;
113 if (flags & XFS_RMAP_BMBT_BLOCK)
114 oinfo->oi_flags |= XFS_OWNER_INFO_BMBT_BLOCK;
117 int xfs_rmap_alloc(struct xfs_trans *tp, struct xfs_buf *agbp,
118 struct xfs_perag *pag, xfs_agblock_t bno, xfs_extlen_t len,
119 const struct xfs_owner_info *oinfo);
120 int xfs_rmap_free(struct xfs_trans *tp, struct xfs_buf *agbp,
121 struct xfs_perag *pag, xfs_agblock_t bno, xfs_extlen_t len,
122 const struct xfs_owner_info *oinfo);
124 int xfs_rmap_lookup_le(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_lookup_eq(struct xfs_btree_cur *cur, xfs_agblock_t bno,
128 xfs_extlen_t len, uint64_t owner, uint64_t offset,
129 unsigned int flags, int *stat);
130 int xfs_rmap_insert(struct xfs_btree_cur *rcur, xfs_agblock_t agbno,
131 xfs_extlen_t len, uint64_t owner, uint64_t offset,
133 int xfs_rmap_get_rec(struct xfs_btree_cur *cur, struct xfs_rmap_irec *irec,
136 typedef int (*xfs_rmap_query_range_fn)(
137 struct xfs_btree_cur *cur,
138 const struct xfs_rmap_irec *rec,
141 int xfs_rmap_query_range(struct xfs_btree_cur *cur,
142 const struct xfs_rmap_irec *low_rec,
143 const struct xfs_rmap_irec *high_rec,
144 xfs_rmap_query_range_fn fn, void *priv);
145 int xfs_rmap_query_all(struct xfs_btree_cur *cur, xfs_rmap_query_range_fn fn,
148 enum xfs_rmap_intent_type {
152 XFS_RMAP_UNMAP_SHARED,
154 XFS_RMAP_CONVERT_SHARED,
159 struct xfs_rmap_intent {
160 struct list_head ri_list;
161 enum xfs_rmap_intent_type ri_type;
164 struct xfs_bmbt_irec ri_bmap;
167 /* functions for updating the rmapbt based on bmbt map/unmap operations */
168 void xfs_rmap_map_extent(struct xfs_trans *tp, struct xfs_inode *ip,
169 int whichfork, struct xfs_bmbt_irec *imap);
170 void xfs_rmap_unmap_extent(struct xfs_trans *tp, struct xfs_inode *ip,
171 int whichfork, struct xfs_bmbt_irec *imap);
172 void xfs_rmap_convert_extent(struct xfs_mount *mp, struct xfs_trans *tp,
173 struct xfs_inode *ip, int whichfork,
174 struct xfs_bmbt_irec *imap);
175 void xfs_rmap_alloc_extent(struct xfs_trans *tp, xfs_agnumber_t agno,
176 xfs_agblock_t bno, xfs_extlen_t len, uint64_t owner);
177 void xfs_rmap_free_extent(struct xfs_trans *tp, xfs_agnumber_t agno,
178 xfs_agblock_t bno, xfs_extlen_t len, uint64_t owner);
180 void xfs_rmap_finish_one_cleanup(struct xfs_trans *tp,
181 struct xfs_btree_cur *rcur, int error);
182 int xfs_rmap_finish_one(struct xfs_trans *tp, enum xfs_rmap_intent_type type,
183 uint64_t owner, int whichfork, xfs_fileoff_t startoff,
184 xfs_fsblock_t startblock, xfs_filblks_t blockcount,
185 xfs_exntst_t state, struct xfs_btree_cur **pcur);
187 int xfs_rmap_find_left_neighbor(struct xfs_btree_cur *cur, xfs_agblock_t bno,
188 uint64_t owner, uint64_t offset, unsigned int flags,
189 struct xfs_rmap_irec *irec, int *stat);
190 int xfs_rmap_lookup_le_range(struct xfs_btree_cur *cur, xfs_agblock_t bno,
191 uint64_t owner, uint64_t offset, unsigned int flags,
192 struct xfs_rmap_irec *irec, int *stat);
193 int xfs_rmap_compare(const struct xfs_rmap_irec *a,
194 const struct xfs_rmap_irec *b);
196 int xfs_rmap_btrec_to_irec(const union xfs_btree_rec *rec,
197 struct xfs_rmap_irec *irec);
198 int xfs_rmap_has_record(struct xfs_btree_cur *cur, xfs_agblock_t bno,
199 xfs_extlen_t len, bool *exists);
200 int xfs_rmap_record_exists(struct xfs_btree_cur *cur, xfs_agblock_t bno,
201 xfs_extlen_t len, const struct xfs_owner_info *oinfo,
203 int xfs_rmap_has_other_keys(struct xfs_btree_cur *cur, xfs_agblock_t bno,
204 xfs_extlen_t len, const struct xfs_owner_info *oinfo,
206 int xfs_rmap_map_raw(struct xfs_btree_cur *cur, struct xfs_rmap_irec *rmap);
208 extern const struct xfs_owner_info XFS_RMAP_OINFO_SKIP_UPDATE;
209 extern const struct xfs_owner_info XFS_RMAP_OINFO_ANY_OWNER;
210 extern const struct xfs_owner_info XFS_RMAP_OINFO_FS;
211 extern const struct xfs_owner_info XFS_RMAP_OINFO_LOG;
212 extern const struct xfs_owner_info XFS_RMAP_OINFO_AG;
213 extern const struct xfs_owner_info XFS_RMAP_OINFO_INOBT;
214 extern const struct xfs_owner_info XFS_RMAP_OINFO_INODES;
215 extern const struct xfs_owner_info XFS_RMAP_OINFO_REFC;
216 extern const struct xfs_owner_info XFS_RMAP_OINFO_COW;
218 #endif /* __XFS_RMAP_H__ */