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1da177e4 | 1 | /* |
7b718769 NS |
2 | * Copyright (c) 2000,2002-2005 Silicon Graphics, Inc. |
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_BMAP_BTREE_H__ | |
19 | #define __XFS_BMAP_BTREE_H__ | |
20 | ||
21 | #define XFS_BMAP_MAGIC 0x424d4150 /* 'BMAP' */ | |
22 | ||
23 | struct xfs_btree_cur; | |
24 | struct xfs_btree_lblock; | |
25 | struct xfs_mount; | |
26 | struct xfs_inode; | |
27 | ||
28 | /* | |
29 | * Bmap root header, on-disk form only. | |
30 | */ | |
31 | typedef struct xfs_bmdr_block | |
32 | { | |
33 | __uint16_t bb_level; /* 0 is a leaf */ | |
34 | __uint16_t bb_numrecs; /* current # of data records */ | |
35 | } xfs_bmdr_block_t; | |
36 | ||
37 | /* | |
38 | * Bmap btree record and extent descriptor. | |
39 | * For 32-bit kernels, | |
40 | * l0:31 is an extent flag (value 1 indicates non-normal). | |
41 | * l0:0-30 and l1:9-31 are startoff. | |
42 | * l1:0-8, l2:0-31, and l3:21-31 are startblock. | |
43 | * l3:0-20 are blockcount. | |
44 | * For 64-bit kernels, | |
45 | * l0:63 is an extent flag (value 1 indicates non-normal). | |
46 | * l0:9-62 are startoff. | |
47 | * l0:0-8 and l1:21-63 are startblock. | |
48 | * l1:0-20 are blockcount. | |
49 | */ | |
50 | ||
f016bad6 | 51 | #ifndef XFS_NATIVE_HOST |
1da177e4 LT |
52 | |
53 | #define BMBT_TOTAL_BITLEN 128 /* 128 bits, 16 bytes */ | |
54 | #define BMBT_EXNTFLAG_BITOFF 0 | |
55 | #define BMBT_EXNTFLAG_BITLEN 1 | |
56 | #define BMBT_STARTOFF_BITOFF (BMBT_EXNTFLAG_BITOFF + BMBT_EXNTFLAG_BITLEN) | |
57 | #define BMBT_STARTOFF_BITLEN 54 | |
58 | #define BMBT_STARTBLOCK_BITOFF (BMBT_STARTOFF_BITOFF + BMBT_STARTOFF_BITLEN) | |
59 | #define BMBT_STARTBLOCK_BITLEN 52 | |
60 | #define BMBT_BLOCKCOUNT_BITOFF \ | |
61 | (BMBT_STARTBLOCK_BITOFF + BMBT_STARTBLOCK_BITLEN) | |
62 | #define BMBT_BLOCKCOUNT_BITLEN (BMBT_TOTAL_BITLEN - BMBT_BLOCKCOUNT_BITOFF) | |
63 | ||
64 | #else | |
65 | ||
66 | #define BMBT_TOTAL_BITLEN 128 /* 128 bits, 16 bytes */ | |
67 | #define BMBT_EXNTFLAG_BITOFF 63 | |
68 | #define BMBT_EXNTFLAG_BITLEN 1 | |
69 | #define BMBT_STARTOFF_BITOFF (BMBT_EXNTFLAG_BITOFF - BMBT_STARTOFF_BITLEN) | |
70 | #define BMBT_STARTOFF_BITLEN 54 | |
71 | #define BMBT_STARTBLOCK_BITOFF 85 /* 128 - 43 (other 9 is in first word) */ | |
72 | #define BMBT_STARTBLOCK_BITLEN 52 | |
73 | #define BMBT_BLOCKCOUNT_BITOFF 64 /* Start of second 64 bit container */ | |
74 | #define BMBT_BLOCKCOUNT_BITLEN 21 | |
75 | ||
f016bad6 | 76 | #endif /* XFS_NATIVE_HOST */ |
1da177e4 LT |
77 | |
78 | ||
79 | #define BMBT_USE_64 1 | |
80 | ||
81 | typedef struct xfs_bmbt_rec_32 | |
82 | { | |
83 | __uint32_t l0, l1, l2, l3; | |
84 | } xfs_bmbt_rec_32_t; | |
85 | typedef struct xfs_bmbt_rec_64 | |
86 | { | |
87 | __uint64_t l0, l1; | |
88 | } xfs_bmbt_rec_64_t; | |
89 | ||
90 | typedef __uint64_t xfs_bmbt_rec_base_t; /* use this for casts */ | |
91 | typedef xfs_bmbt_rec_64_t xfs_bmbt_rec_t, xfs_bmdr_rec_t; | |
92 | ||
93 | /* | |
94 | * Values and macros for delayed-allocation startblock fields. | |
95 | */ | |
96 | #define STARTBLOCKVALBITS 17 | |
97 | #define STARTBLOCKMASKBITS (15 + XFS_BIG_BLKNOS * 20) | |
98 | #define DSTARTBLOCKMASKBITS (15 + 20) | |
99 | #define STARTBLOCKMASK \ | |
100 | (((((xfs_fsblock_t)1) << STARTBLOCKMASKBITS) - 1) << STARTBLOCKVALBITS) | |
101 | #define DSTARTBLOCKMASK \ | |
102 | (((((xfs_dfsbno_t)1) << DSTARTBLOCKMASKBITS) - 1) << STARTBLOCKVALBITS) | |
a844f451 | 103 | |
1da177e4 | 104 | #define ISNULLSTARTBLOCK(x) isnullstartblock(x) |
a844f451 NS |
105 | static inline int isnullstartblock(xfs_fsblock_t x) |
106 | { | |
107 | return ((x) & STARTBLOCKMASK) == STARTBLOCKMASK; | |
108 | } | |
109 | ||
1da177e4 | 110 | #define ISNULLDSTARTBLOCK(x) isnulldstartblock(x) |
a844f451 NS |
111 | static inline int isnulldstartblock(xfs_dfsbno_t x) |
112 | { | |
113 | return ((x) & DSTARTBLOCKMASK) == DSTARTBLOCKMASK; | |
114 | } | |
115 | ||
1da177e4 | 116 | #define NULLSTARTBLOCK(k) nullstartblock(k) |
a844f451 NS |
117 | static inline xfs_fsblock_t nullstartblock(int k) |
118 | { | |
119 | ASSERT(k < (1 << STARTBLOCKVALBITS)); | |
120 | return STARTBLOCKMASK | (k); | |
121 | } | |
122 | ||
1da177e4 | 123 | #define STARTBLOCKVAL(x) startblockval(x) |
a844f451 NS |
124 | static inline xfs_filblks_t startblockval(xfs_fsblock_t x) |
125 | { | |
126 | return (xfs_filblks_t)((x) & ~STARTBLOCKMASK); | |
127 | } | |
1da177e4 LT |
128 | |
129 | /* | |
130 | * Possible extent formats. | |
131 | */ | |
132 | typedef enum { | |
133 | XFS_EXTFMT_NOSTATE = 0, | |
134 | XFS_EXTFMT_HASSTATE | |
135 | } xfs_exntfmt_t; | |
136 | ||
137 | /* | |
138 | * Possible extent states. | |
139 | */ | |
140 | typedef enum { | |
141 | XFS_EXT_NORM, XFS_EXT_UNWRITTEN, | |
142 | XFS_EXT_DMAPI_OFFLINE, XFS_EXT_INVALID | |
143 | } xfs_exntst_t; | |
144 | ||
145 | /* | |
146 | * Extent state and extent format macros. | |
147 | */ | |
a844f451 NS |
148 | #define XFS_EXTFMT_INODE(x) \ |
149 | (XFS_SB_VERSION_HASEXTFLGBIT(&((x)->i_mount->m_sb)) ? \ | |
150 | XFS_EXTFMT_HASSTATE : XFS_EXTFMT_NOSTATE) | |
1da177e4 LT |
151 | #define ISUNWRITTEN(x) ((x)->br_state == XFS_EXT_UNWRITTEN) |
152 | ||
153 | /* | |
154 | * Incore version of above. | |
155 | */ | |
156 | typedef struct xfs_bmbt_irec | |
157 | { | |
158 | xfs_fileoff_t br_startoff; /* starting file offset */ | |
159 | xfs_fsblock_t br_startblock; /* starting block number */ | |
160 | xfs_filblks_t br_blockcount; /* number of blocks */ | |
161 | xfs_exntst_t br_state; /* extent state */ | |
162 | } xfs_bmbt_irec_t; | |
163 | ||
164 | /* | |
165 | * Key structure for non-leaf levels of the tree. | |
166 | */ | |
167 | typedef struct xfs_bmbt_key | |
168 | { | |
169 | xfs_dfiloff_t br_startoff; /* starting file offset */ | |
170 | } xfs_bmbt_key_t, xfs_bmdr_key_t; | |
171 | ||
172 | typedef xfs_dfsbno_t xfs_bmbt_ptr_t, xfs_bmdr_ptr_t; /* btree pointer type */ | |
173 | /* btree block header type */ | |
174 | typedef struct xfs_btree_lblock xfs_bmbt_block_t; | |
175 | ||
a844f451 | 176 | #define XFS_BUF_TO_BMBT_BLOCK(bp) ((xfs_bmbt_block_t *)XFS_BUF_PTR(bp)) |
1da177e4 | 177 | |
a844f451 NS |
178 | #define XFS_BMAP_IBLOCK_SIZE(lev,cur) (1 << (cur)->bc_blocklog) |
179 | #define XFS_BMAP_RBLOCK_DSIZE(lev,cur) ((cur)->bc_private.b.forksize) | |
180 | #define XFS_BMAP_RBLOCK_ISIZE(lev,cur) \ | |
1da177e4 | 181 | ((int)XFS_IFORK_PTR((cur)->bc_private.b.ip, \ |
a844f451 | 182 | (cur)->bc_private.b.whichfork)->if_broot_bytes) |
1da177e4 | 183 | |
a844f451 NS |
184 | #define XFS_BMAP_BLOCK_DSIZE(lev,cur) \ |
185 | (((lev) == (cur)->bc_nlevels - 1 ? \ | |
186 | XFS_BMAP_RBLOCK_DSIZE(lev,cur) : XFS_BMAP_IBLOCK_SIZE(lev,cur))) | |
187 | #define XFS_BMAP_BLOCK_ISIZE(lev,cur) \ | |
188 | (((lev) == (cur)->bc_nlevels - 1 ? \ | |
189 | XFS_BMAP_RBLOCK_ISIZE(lev,cur) : XFS_BMAP_IBLOCK_SIZE(lev,cur))) | |
1da177e4 | 190 | |
1da177e4 | 191 | #define XFS_BMAP_BLOCK_DMAXRECS(lev,cur) \ |
a844f451 | 192 | (((lev) == (cur)->bc_nlevels - 1 ? \ |
1da177e4 LT |
193 | XFS_BTREE_BLOCK_MAXRECS(XFS_BMAP_RBLOCK_DSIZE(lev,cur), \ |
194 | xfs_bmdr, (lev) == 0) : \ | |
a844f451 | 195 | ((cur)->bc_mp->m_bmap_dmxr[(lev) != 0]))) |
1da177e4 | 196 | #define XFS_BMAP_BLOCK_IMAXRECS(lev,cur) \ |
a844f451 NS |
197 | (((lev) == (cur)->bc_nlevels - 1 ? \ |
198 | XFS_BTREE_BLOCK_MAXRECS(XFS_BMAP_RBLOCK_ISIZE(lev,cur),\ | |
199 | xfs_bmbt, (lev) == 0) : \ | |
200 | ((cur)->bc_mp->m_bmap_dmxr[(lev) != 0]))) | |
1da177e4 | 201 | |
1da177e4 | 202 | #define XFS_BMAP_BLOCK_DMINRECS(lev,cur) \ |
a844f451 NS |
203 | (((lev) == (cur)->bc_nlevels - 1 ? \ |
204 | XFS_BTREE_BLOCK_MINRECS(XFS_BMAP_RBLOCK_DSIZE(lev,cur),\ | |
205 | xfs_bmdr, (lev) == 0) : \ | |
206 | ((cur)->bc_mp->m_bmap_dmnr[(lev) != 0]))) | |
1da177e4 | 207 | #define XFS_BMAP_BLOCK_IMINRECS(lev,cur) \ |
a844f451 NS |
208 | (((lev) == (cur)->bc_nlevels - 1 ? \ |
209 | XFS_BTREE_BLOCK_MINRECS(XFS_BMAP_RBLOCK_ISIZE(lev,cur),\ | |
210 | xfs_bmbt, (lev) == 0) : \ | |
211 | ((cur)->bc_mp->m_bmap_dmnr[(lev) != 0]))) | |
212 | ||
213 | #define XFS_BMAP_REC_DADDR(bb,i,cur) \ | |
214 | (XFS_BTREE_REC_ADDR(XFS_BMAP_BLOCK_DSIZE( \ | |
215 | INT_GET((bb)->bb_level, ARCH_CONVERT), cur), \ | |
216 | xfs_bmbt, bb, i, XFS_BMAP_BLOCK_DMAXRECS( \ | |
217 | INT_GET((bb)->bb_level, ARCH_CONVERT), cur))) | |
218 | #define XFS_BMAP_REC_IADDR(bb,i,cur) \ | |
219 | (XFS_BTREE_REC_ADDR(XFS_BMAP_BLOCK_ISIZE( \ | |
220 | INT_GET((bb)->bb_level, ARCH_CONVERT), cur), \ | |
221 | xfs_bmbt, bb, i, XFS_BMAP_BLOCK_IMAXRECS( \ | |
222 | INT_GET((bb)->bb_level, ARCH_CONVERT), cur))) | |
223 | ||
224 | #define XFS_BMAP_KEY_DADDR(bb,i,cur) \ | |
225 | (XFS_BTREE_KEY_ADDR(XFS_BMAP_BLOCK_DSIZE( \ | |
226 | INT_GET((bb)->bb_level, ARCH_CONVERT), cur), \ | |
227 | xfs_bmbt, bb, i, XFS_BMAP_BLOCK_DMAXRECS( \ | |
228 | INT_GET((bb)->bb_level, ARCH_CONVERT), cur))) | |
229 | #define XFS_BMAP_KEY_IADDR(bb,i,cur) \ | |
230 | (XFS_BTREE_KEY_ADDR(XFS_BMAP_BLOCK_ISIZE( \ | |
231 | INT_GET((bb)->bb_level, ARCH_CONVERT), cur), \ | |
232 | xfs_bmbt, bb, i, XFS_BMAP_BLOCK_IMAXRECS( \ | |
233 | INT_GET((bb)->bb_level, ARCH_CONVERT), cur))) | |
234 | ||
235 | #define XFS_BMAP_PTR_DADDR(bb,i,cur) \ | |
236 | (XFS_BTREE_PTR_ADDR(XFS_BMAP_BLOCK_DSIZE( \ | |
237 | INT_GET((bb)->bb_level, ARCH_CONVERT), cur), \ | |
238 | xfs_bmbt, bb, i, XFS_BMAP_BLOCK_DMAXRECS( \ | |
239 | INT_GET((bb)->bb_level, ARCH_CONVERT), cur))) | |
240 | #define XFS_BMAP_PTR_IADDR(bb,i,cur) \ | |
241 | (XFS_BTREE_PTR_ADDR(XFS_BMAP_BLOCK_ISIZE( \ | |
242 | INT_GET((bb)->bb_level, ARCH_CONVERT), cur), \ | |
243 | xfs_bmbt, bb, i, XFS_BMAP_BLOCK_IMAXRECS( \ | |
244 | INT_GET((bb)->bb_level, ARCH_CONVERT), cur))) | |
1da177e4 LT |
245 | |
246 | /* | |
247 | * These are to be used when we know the size of the block and | |
248 | * we don't have a cursor. | |
249 | */ | |
1da177e4 | 250 | #define XFS_BMAP_BROOT_REC_ADDR(bb,i,sz) \ |
a844f451 | 251 | (XFS_BTREE_REC_ADDR(sz,xfs_bmbt,bb,i,XFS_BMAP_BROOT_MAXRECS(sz))) |
1da177e4 | 252 | #define XFS_BMAP_BROOT_KEY_ADDR(bb,i,sz) \ |
a844f451 | 253 | (XFS_BTREE_KEY_ADDR(sz,xfs_bmbt,bb,i,XFS_BMAP_BROOT_MAXRECS(sz))) |
1da177e4 | 254 | #define XFS_BMAP_BROOT_PTR_ADDR(bb,i,sz) \ |
a844f451 NS |
255 | (XFS_BTREE_PTR_ADDR(sz,xfs_bmbt,bb,i,XFS_BMAP_BROOT_MAXRECS(sz))) |
256 | ||
257 | #define XFS_BMAP_BROOT_NUMRECS(bb) INT_GET((bb)->bb_numrecs, ARCH_CONVERT) | |
258 | #define XFS_BMAP_BROOT_MAXRECS(sz) XFS_BTREE_BLOCK_MAXRECS(sz,xfs_bmbt,0) | |
1da177e4 | 259 | |
1da177e4 | 260 | #define XFS_BMAP_BROOT_SPACE_CALC(nrecs) \ |
a844f451 NS |
261 | (int)(sizeof(xfs_bmbt_block_t) + \ |
262 | ((nrecs) * (sizeof(xfs_bmbt_key_t) + sizeof(xfs_bmbt_ptr_t)))) | |
263 | ||
1da177e4 | 264 | #define XFS_BMAP_BROOT_SPACE(bb) \ |
a844f451 NS |
265 | (XFS_BMAP_BROOT_SPACE_CALC(INT_GET((bb)->bb_numrecs, ARCH_CONVERT))) |
266 | #define XFS_BMDR_SPACE_CALC(nrecs) \ | |
267 | (int)(sizeof(xfs_bmdr_block_t) + \ | |
268 | ((nrecs) * (sizeof(xfs_bmbt_key_t) + sizeof(xfs_bmbt_ptr_t)))) | |
1da177e4 LT |
269 | |
270 | /* | |
271 | * Maximum number of bmap btree levels. | |
272 | */ | |
a844f451 | 273 | #define XFS_BM_MAXLEVELS(mp,w) ((mp)->m_bm_maxlevels[(w)]) |
1da177e4 | 274 | |
a844f451 | 275 | #define XFS_BMAP_SANITY_CHECK(mp,bb,level) \ |
1da177e4 LT |
276 | (INT_GET((bb)->bb_magic, ARCH_CONVERT) == XFS_BMAP_MAGIC && \ |
277 | INT_GET((bb)->bb_level, ARCH_CONVERT) == level && \ | |
278 | INT_GET((bb)->bb_numrecs, ARCH_CONVERT) > 0 && \ | |
a844f451 NS |
279 | INT_GET((bb)->bb_numrecs, ARCH_CONVERT) <= \ |
280 | (mp)->m_bmap_dmxr[(level) != 0]) | |
1da177e4 LT |
281 | |
282 | ||
283 | #ifdef __KERNEL__ | |
284 | ||
285 | #if defined(XFS_BMBT_TRACE) | |
286 | /* | |
287 | * Trace buffer entry types. | |
288 | */ | |
289 | #define XFS_BMBT_KTRACE_ARGBI 1 | |
290 | #define XFS_BMBT_KTRACE_ARGBII 2 | |
291 | #define XFS_BMBT_KTRACE_ARGFFFI 3 | |
292 | #define XFS_BMBT_KTRACE_ARGI 4 | |
293 | #define XFS_BMBT_KTRACE_ARGIFK 5 | |
294 | #define XFS_BMBT_KTRACE_ARGIFR 6 | |
295 | #define XFS_BMBT_KTRACE_ARGIK 7 | |
296 | #define XFS_BMBT_KTRACE_CUR 8 | |
297 | ||
298 | #define XFS_BMBT_TRACE_SIZE 4096 /* size of global trace buffer */ | |
299 | #define XFS_BMBT_KTRACE_SIZE 32 /* size of per-inode trace buffer */ | |
300 | extern ktrace_t *xfs_bmbt_trace_buf; | |
301 | #endif | |
302 | ||
303 | /* | |
304 | * Prototypes for xfs_bmap.c to call. | |
305 | */ | |
a844f451 NS |
306 | extern void xfs_bmdr_to_bmbt(xfs_bmdr_block_t *, int, xfs_bmbt_block_t *, int); |
307 | extern int xfs_bmbt_decrement(struct xfs_btree_cur *, int, int *); | |
308 | extern int xfs_bmbt_delete(struct xfs_btree_cur *, int *); | |
309 | extern void xfs_bmbt_get_all(xfs_bmbt_rec_t *r, xfs_bmbt_irec_t *s); | |
310 | extern xfs_bmbt_block_t *xfs_bmbt_get_block(struct xfs_btree_cur *cur, | |
311 | int, struct xfs_buf **bpp); | |
312 | extern xfs_filblks_t xfs_bmbt_get_blockcount(xfs_bmbt_rec_t *r); | |
313 | extern xfs_fsblock_t xfs_bmbt_get_startblock(xfs_bmbt_rec_t *r); | |
314 | extern xfs_fileoff_t xfs_bmbt_get_startoff(xfs_bmbt_rec_t *r); | |
315 | extern xfs_exntst_t xfs_bmbt_get_state(xfs_bmbt_rec_t *r); | |
1da177e4 | 316 | |
f016bad6 | 317 | #ifndef XFS_NATIVE_HOST |
a844f451 NS |
318 | extern void xfs_bmbt_disk_get_all(xfs_bmbt_rec_t *r, xfs_bmbt_irec_t *s); |
319 | extern xfs_exntst_t xfs_bmbt_disk_get_state(xfs_bmbt_rec_t *r); | |
320 | extern xfs_filblks_t xfs_bmbt_disk_get_blockcount(xfs_bmbt_rec_t *r); | |
321 | extern xfs_fsblock_t xfs_bmbt_disk_get_startblock(xfs_bmbt_rec_t *r); | |
322 | extern xfs_fileoff_t xfs_bmbt_disk_get_startoff(xfs_bmbt_rec_t *r); | |
323 | #else | |
324 | #define xfs_bmbt_disk_get_all(r, s) xfs_bmbt_get_all(r, s) | |
325 | #define xfs_bmbt_disk_get_state(r) xfs_bmbt_get_state(r) | |
326 | #define xfs_bmbt_disk_get_blockcount(r) xfs_bmbt_get_blockcount(r) | |
327 | #define xfs_bmbt_disk_get_startblock(r) xfs_bmbt_get_blockcount(r) | |
328 | #define xfs_bmbt_disk_get_startoff(r) xfs_bmbt_get_startoff(r) | |
f016bad6 | 329 | #endif /* XFS_NATIVE_HOST */ |
1da177e4 | 330 | |
a844f451 NS |
331 | extern int xfs_bmbt_increment(struct xfs_btree_cur *, int, int *); |
332 | extern int xfs_bmbt_insert(struct xfs_btree_cur *, int *); | |
333 | extern void xfs_bmbt_log_block(struct xfs_btree_cur *, struct xfs_buf *, int); | |
334 | extern void xfs_bmbt_log_recs(struct xfs_btree_cur *, struct xfs_buf *, int, | |
335 | int); | |
336 | extern int xfs_bmbt_lookup_eq(struct xfs_btree_cur *, xfs_fileoff_t, | |
337 | xfs_fsblock_t, xfs_filblks_t, int *); | |
338 | extern int xfs_bmbt_lookup_ge(struct xfs_btree_cur *, xfs_fileoff_t, | |
339 | xfs_fsblock_t, xfs_filblks_t, int *); | |
1da177e4 | 340 | |
1da177e4 LT |
341 | /* |
342 | * Give the bmap btree a new root block. Copy the old broot contents | |
343 | * down into a real block and make the broot point to it. | |
344 | */ | |
a844f451 NS |
345 | extern int xfs_bmbt_newroot(struct xfs_btree_cur *cur, int *lflags, int *stat); |
346 | ||
347 | extern void xfs_bmbt_set_all(xfs_bmbt_rec_t *r, xfs_bmbt_irec_t *s); | |
348 | extern void xfs_bmbt_set_allf(xfs_bmbt_rec_t *r, xfs_fileoff_t o, | |
349 | xfs_fsblock_t b, xfs_filblks_t c, xfs_exntst_t v); | |
350 | extern void xfs_bmbt_set_blockcount(xfs_bmbt_rec_t *r, xfs_filblks_t v); | |
351 | extern void xfs_bmbt_set_startblock(xfs_bmbt_rec_t *r, xfs_fsblock_t v); | |
352 | extern void xfs_bmbt_set_startoff(xfs_bmbt_rec_t *r, xfs_fileoff_t v); | |
353 | extern void xfs_bmbt_set_state(xfs_bmbt_rec_t *r, xfs_exntst_t v); | |
1da177e4 | 354 | |
f016bad6 | 355 | #ifndef XFS_NATIVE_HOST |
a844f451 NS |
356 | extern void xfs_bmbt_disk_set_all(xfs_bmbt_rec_t *r, xfs_bmbt_irec_t *s); |
357 | extern void xfs_bmbt_disk_set_allf(xfs_bmbt_rec_t *r, xfs_fileoff_t o, | |
358 | xfs_fsblock_t b, xfs_filblks_t c, xfs_exntst_t v); | |
1da177e4 | 359 | #else |
a844f451 NS |
360 | #define xfs_bmbt_disk_set_all(r, s) xfs_bmbt_set_all(r, s) |
361 | #define xfs_bmbt_disk_set_allf(r, o, b, c, v) xfs_bmbt_set_allf(r, o, b, c, v) | |
f016bad6 | 362 | #endif /* XFS_NATIVE_HOST */ |
1da177e4 | 363 | |
a844f451 NS |
364 | extern void xfs_bmbt_to_bmdr(xfs_bmbt_block_t *, int, xfs_bmdr_block_t *, int); |
365 | extern int xfs_bmbt_update(struct xfs_btree_cur *, xfs_fileoff_t, | |
366 | xfs_fsblock_t, xfs_filblks_t, xfs_exntst_t); | |
1da177e4 LT |
367 | |
368 | #ifdef DEBUG | |
369 | /* | |
370 | * Get the data from the pointed-to record. | |
371 | */ | |
a844f451 NS |
372 | extern int xfs_bmbt_get_rec(struct xfs_btree_cur *, xfs_fileoff_t *, |
373 | xfs_fsblock_t *, xfs_filblks_t *, | |
374 | xfs_exntst_t *, int *); | |
1da177e4 LT |
375 | #endif |
376 | ||
1da177e4 LT |
377 | /* |
378 | * Search an extent list for the extent which includes block | |
379 | * bno. | |
380 | */ | |
a844f451 NS |
381 | xfs_bmbt_rec_t *xfs_bmap_do_search_extents(xfs_bmbt_rec_t *, |
382 | xfs_extnum_t, xfs_extnum_t, xfs_fileoff_t, int *, | |
383 | xfs_extnum_t *, xfs_bmbt_irec_t *, xfs_bmbt_irec_t *); | |
1da177e4 LT |
384 | |
385 | #endif /* __KERNEL__ */ | |
386 | ||
387 | #endif /* __XFS_BMAP_BTREE_H__ */ |