Commit | Line | Data |
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da7c5cc6 | 1 | /* |
80409bdc KB |
2 | * Copyright (c) 1982, 1986, 1989, 1993 |
3 | * The Regents of the University of California. All rights reserved. | |
da7c5cc6 | 4 | * |
b702c21d | 5 | * %sccs.include.redist.c% |
7188ac27 | 6 | * |
dbb7672a | 7 | * @(#)ffs_inode.c 8.3 (Berkeley) %G% |
da7c5cc6 | 8 | */ |
5d5124a1 | 9 | |
0a52434b KB |
10 | #include <sys/param.h> |
11 | #include <sys/systm.h> | |
12 | #include <sys/mount.h> | |
13 | #include <sys/proc.h> | |
14 | #include <sys/file.h> | |
15 | #include <sys/buf.h> | |
16 | #include <sys/vnode.h> | |
17 | #include <sys/kernel.h> | |
18 | #include <sys/malloc.h> | |
007fca48 MS |
19 | #include <sys/trace.h> |
20 | #include <sys/resourcevar.h> | |
5d5124a1 | 21 | |
8847a2f7 KM |
22 | #include <vm/vm.h> |
23 | ||
0a52434b KB |
24 | #include <ufs/ufs/quota.h> |
25 | #include <ufs/ufs/inode.h> | |
26 | #include <ufs/ufs/ufsmount.h> | |
27 | #include <ufs/ufs/ufs_extern.h> | |
c6f5111d | 28 | |
0a52434b KB |
29 | #include <ufs/ffs/fs.h> |
30 | #include <ufs/ffs/ffs_extern.h> | |
3ebac878 | 31 | |
007fca48 MS |
32 | static int ffs_indirtrunc __P((struct inode *, daddr_t, daddr_t, daddr_t, int, |
33 | long *)); | |
3ebac878 | 34 | |
0a52434b KB |
35 | int |
36 | ffs_init() | |
5d5124a1 | 37 | { |
0a52434b | 38 | return (ufs_init()); |
5d5124a1 BJ |
39 | } |
40 | ||
a1e9dd57 | 41 | /* |
dbb7672a KB |
42 | * Update the access, modified, and inode change times as specified by the |
43 | * IACCESS, IUPDATE, and ICHANGE flags respectively. The IMODIFIED flag is | |
44 | * used to specify that the inode needs to be updated but that the times have | |
45 | * already been set. The access and modified times are taken from the second | |
46 | * and third parameters; the inode change time is always taken from the current | |
47 | * time. If waitfor is set, then wait for the disk write of the inode to | |
48 | * complete. | |
5d5124a1 | 49 | */ |
0a52434b | 50 | int |
ebfa7d99 KM |
51 | ffs_update(ap) |
52 | struct vop_update_args /* { | |
53 | struct vnode *a_vp; | |
175b63e7 KB |
54 | struct timeval *a_access; |
55 | struct timeval *a_modify; | |
ebfa7d99 KM |
56 | int a_waitfor; |
57 | } */ *ap; | |
5d5124a1 | 58 | { |
175b63e7 | 59 | register struct fs *fs; |
7188ac27 | 60 | struct buf *bp; |
a9013e03 | 61 | struct inode *ip; |
5d5124a1 | 62 | struct dinode *dp; |
ec67a3ce | 63 | register struct fs *fs; |
5d5124a1 | 64 | |
7eccb7cc | 65 | ip = VTOI(ap->a_vp); |
448180e1 | 66 | if (ap->a_vp->v_mount->mnt_flag & MNT_RDONLY) { |
dbb7672a | 67 | ip->i_flag &= ~(IUPDATE | IACCESS | ICHANGE | IMODIFIED); |
7188ac27 | 68 | return (0); |
448180e1 | 69 | } |
dbb7672a | 70 | if ((ip->i_flag & (IUPDATE | IACCESS | ICHANGE | IMODIFIED)) == 0) |
a9013e03 | 71 | return (0); |
dbb7672a | 72 | if (ip->i_flag & IACCESS) |
175b63e7 | 73 | ip->i_atime.ts_sec = ap->a_access->tv_sec; |
dbb7672a | 74 | if (ip->i_flag & IUPDATE) { |
175b63e7 | 75 | ip->i_mtime.ts_sec = ap->a_modify->tv_sec; |
d9011ad6 | 76 | ip->i_modrev++; |
baaa0677 | 77 | } |
dbb7672a | 78 | if (ip->i_flag & ICHANGE) |
7e11a0c9 | 79 | ip->i_ctime.ts_sec = time.tv_sec; |
dbb7672a | 80 | ip->i_flag &= ~(IUPDATE | IACCESS | ICHANGE | IMODIFIED); |
6cb9e1e3 | 81 | fs = ip->i_fs; |
9de329b9 KM |
82 | /* |
83 | * Ensure that uid and gid are correct. This is a temporary | |
84 | * fix until fsck has been changed to do the update. | |
85 | */ | |
6cb9e1e3 KM |
86 | if (fs->fs_inodefmt < FS_44INODEFMT) { /* XXX */ |
87 | ip->i_din.di_ouid = ip->i_uid; /* XXX */ | |
88 | ip->i_din.di_ogid = ip->i_gid; /* XXX */ | |
89 | } /* XXX */ | |
a9013e03 KM |
90 | if (error = bread(ip->i_devvp, fsbtodb(fs, itod(fs, ip->i_number)), |
91 | (int)fs->fs_bsize, NOCRED, &bp)) { | |
92 | brelse(bp); | |
93 | return (error); | |
94 | } | |
dbb7672a | 95 | dp = (struct dinode *)bp->b_data + itoo(fs, ip->i_number); |
a1e9dd57 | 96 | *dp = ip->i_din; |
e1b76915 | 97 | if (ap->a_waitfor) |
7188ac27 | 98 | return (bwrite(bp)); |
a9013e03 | 99 | else { |
7188ac27 KM |
100 | bdwrite(bp); |
101 | return (0); | |
5d5124a1 BJ |
102 | } |
103 | } | |
104 | ||
9c03b2c0 SL |
105 | #define SINGLE 0 /* index of single indirect block */ |
106 | #define DOUBLE 1 /* index of double indirect block */ | |
107 | #define TRIPLE 2 /* index of triple indirect block */ | |
5d5124a1 | 108 | /* |
035e92f1 | 109 | * Truncate the inode oip to at most length size. Free affected disk |
a1e9dd57 | 110 | * blocks -- the blocks of the file are removed in reverse order. |
5d5124a1 | 111 | */ |
ebfa7d99 KM |
112 | ffs_truncate(ap) |
113 | struct vop_truncate_args /* { | |
114 | struct vnode *a_vp; | |
115 | off_t a_length; | |
116 | int a_flags; | |
117 | struct ucred *a_cred; | |
118 | struct proc *a_p; | |
119 | } */ *ap; | |
5d5124a1 | 120 | { |
406c9a0d | 121 | register struct vnode *ovp = ap->a_vp; |
4f083fd7 | 122 | register daddr_t lastblock; |
a9013e03 | 123 | register struct inode *oip; |
d7313a2f | 124 | daddr_t bn, lbn, lastiblock[NIADDR], indir_lbn[NIADDR]; |
035e92f1 | 125 | daddr_t oldblks[NDADDR + NIADDR], newblks[NDADDR + NIADDR]; |
ebfa7d99 | 126 | off_t length = ap->a_length; |
6459ebe0 | 127 | register struct fs *fs; |
28821bc5 | 128 | struct buf *bp; |
0308fc84 | 129 | int offset, size, level; |
d7313a2f | 130 | long count, nblocks, vflags, blocksreleased = 0; |
d056f176 | 131 | struct timeval tv; |
28821bc5 | 132 | register int i; |
e038406d | 133 | int aflags, error, allerror; |
0308fc84 | 134 | off_t osize; |
4f083fd7 | 135 | |
406c9a0d | 136 | oip = VTOI(ovp); |
d056f176 | 137 | tv = time; |
074ca965 KM |
138 | if (ovp->v_type == VLNK && |
139 | oip->i_size < ovp->v_mount->mnt_maxsymlinklen) { | |
e11d370a | 140 | #ifdef DIAGNOSTIC |
ebfa7d99 | 141 | if (length != 0) |
e11d370a KM |
142 | panic("ffs_truncate: partial truncate of symlink"); |
143 | #endif | |
144 | bzero((char *)&oip->i_shortlink, (u_int)oip->i_size); | |
145 | oip->i_size = 0; | |
dbb7672a | 146 | oip->i_flag |= IUPDATE | ICHANGE; |
d056f176 | 147 | return (VOP_UPDATE(ovp, &tv, &tv, 1)); |
e11d370a | 148 | } |
29e4c95b | 149 | if (oip->i_size == length) { |
dbb7672a | 150 | oip->i_flag |= IUPDATE | ICHANGE; |
c3e9f24b | 151 | return (VOP_UPDATE(ovp, &tv, &tv, 0)); |
7b2e4f05 | 152 | } |
a3116541 KM |
153 | #ifdef QUOTA |
154 | if (error = getinoquota(oip)) | |
155 | return (error); | |
156 | #endif | |
ebfa7d99 | 157 | vnode_pager_setsize(ovp, (u_long)length); |
a3116541 KM |
158 | fs = oip->i_fs; |
159 | osize = oip->i_size; | |
6459ebe0 | 160 | /* |
a3116541 KM |
161 | * Lengthen the size of the file. We must ensure that the |
162 | * last byte of the file is allocated. Since the smallest | |
163 | * value of oszie is 0, length will be at least 1. | |
164 | */ | |
165 | if (osize < length) { | |
166 | offset = blkoff(fs, length - 1); | |
167 | lbn = lblkno(fs, length - 1); | |
168 | aflags = B_CLRBUF; | |
169 | if (ap->a_flags & IO_SYNC) | |
170 | aflags |= B_SYNC; | |
171 | if (error = ffs_balloc(oip, lbn, offset + 1, ap->a_cred, &bp, | |
172 | aflags)) | |
173 | return (error); | |
174 | oip->i_size = length; | |
175 | (void) vnode_pager_uncache(ovp); | |
176 | if (aflags & IO_SYNC) | |
177 | bwrite(bp); | |
178 | else | |
179 | bawrite(bp); | |
dbb7672a | 180 | oip->i_flag |= IUPDATE | ICHANGE; |
a3116541 KM |
181 | return (VOP_UPDATE(ovp, &tv, &tv, 1)); |
182 | } | |
183 | /* | |
184 | * Shorten the size of the file. If the file is not being | |
28821bc5 KM |
185 | * truncated to a block boundry, the contents of the |
186 | * partial block following the end of the file must be | |
187 | * zero'ed in case it ever become accessable again because | |
188 | * of subsequent file growth. | |
189 | */ | |
ebfa7d99 | 190 | offset = blkoff(fs, length); |
a3116541 | 191 | if (offset == 0) { |
ebfa7d99 | 192 | oip->i_size = length; |
28821bc5 | 193 | } else { |
ebfa7d99 | 194 | lbn = lblkno(fs, length); |
e038406d | 195 | aflags = B_CLRBUF; |
e1b76915 | 196 | if (ap->a_flags & IO_SYNC) |
e038406d | 197 | aflags |= B_SYNC; |
a3116541 KM |
198 | if (error = ffs_balloc(oip, lbn, offset, ap->a_cred, &bp, |
199 | aflags)) | |
7188ac27 | 200 | return (error); |
ebfa7d99 | 201 | oip->i_size = length; |
28821bc5 | 202 | size = blksize(fs, oip, lbn); |
406c9a0d | 203 | (void) vnode_pager_uncache(ovp); |
dbb7672a | 204 | bzero((char *)bp->b_data + offset, (u_int)(size - offset)); |
a3116541 KM |
205 | allocbuf(bp, size); |
206 | if (aflags & IO_SYNC) | |
e038406d KM |
207 | bwrite(bp); |
208 | else | |
035e92f1 | 209 | bawrite(bp); |
28821bc5 | 210 | } |
29e4c95b KM |
211 | /* |
212 | * Calculate index into inode's block list of | |
213 | * last direct and indirect blocks (if any) | |
214 | * which we want to keep. Lastblock is -1 when | |
215 | * the file is truncated to 0. | |
216 | */ | |
217 | lastblock = lblkno(fs, length + fs->fs_bsize - 1) - 1; | |
218 | lastiblock[SINGLE] = lastblock - NDADDR; | |
219 | lastiblock[DOUBLE] = lastiblock[SINGLE] - NINDIR(fs); | |
220 | lastiblock[TRIPLE] = lastiblock[DOUBLE] - NINDIR(fs) * NINDIR(fs); | |
221 | nblocks = btodb(fs->fs_bsize); | |
28821bc5 | 222 | /* |
0a52434b KB |
223 | * Update file and block pointers on disk before we start freeing |
224 | * blocks. If we crash before free'ing blocks below, the blocks | |
225 | * will be returned to the free list. lastiblock values are also | |
226 | * normalized to -1 for calls to ffs_indirtrunc below. | |
6459ebe0 | 227 | */ |
035e92f1 | 228 | bcopy((caddr_t)&oip->i_db[0], (caddr_t)oldblks, sizeof oldblks); |
9c03b2c0 SL |
229 | for (level = TRIPLE; level >= SINGLE; level--) |
230 | if (lastiblock[level] < 0) { | |
231 | oip->i_ib[level] = 0; | |
232 | lastiblock[level] = -1; | |
4f083fd7 | 233 | } |
9c03b2c0 SL |
234 | for (i = NDADDR - 1; i > lastblock; i--) |
235 | oip->i_db[i] = 0; | |
dbb7672a | 236 | oip->i_flag |= IUPDATE | ICHANGE; |
d056f176 | 237 | if (error = VOP_UPDATE(ovp, &tv, &tv, MNT_WAIT)) |
e534e43a | 238 | allerror = error; |
035e92f1 KM |
239 | /* |
240 | * Having written the new inode to disk, save its new configuration | |
241 | * and put back the old block pointers long enough to process them. | |
242 | * Note that we save the new block configuration so we can check it | |
243 | * when we are done. | |
244 | */ | |
245 | bcopy((caddr_t)&oip->i_db[0], (caddr_t)newblks, sizeof newblks); | |
246 | bcopy((caddr_t)oldblks, (caddr_t)&oip->i_db[0], sizeof oldblks); | |
247 | oip->i_size = osize; | |
248 | vflags = ((length > 0) ? V_SAVE : 0) | V_SAVEMETA; | |
249 | allerror = vinvalbuf(ovp, vflags, ap->a_cred, ap->a_p, 0, 0); | |
9c03b2c0 | 250 | |
6459ebe0 | 251 | /* |
9c03b2c0 | 252 | * Indirect blocks first. |
6459ebe0 | 253 | */ |
d7313a2f MS |
254 | indir_lbn[SINGLE] = -NDADDR; |
255 | indir_lbn[DOUBLE] = indir_lbn[SINGLE] - NINDIR(fs) - 1; | |
256 | indir_lbn[TRIPLE] = indir_lbn[DOUBLE] - NINDIR(fs) * NINDIR(fs) - 1; | |
9c03b2c0 | 257 | for (level = TRIPLE; level >= SINGLE; level--) { |
035e92f1 | 258 | bn = oip->i_ib[level]; |
4f083fd7 | 259 | if (bn != 0) { |
035e92f1 | 260 | error = ffs_indirtrunc(oip, indir_lbn[level], |
007fca48 | 261 | fsbtodb(fs, bn), lastiblock[level], level, &count); |
7188ac27 KM |
262 | if (error) |
263 | allerror = error; | |
264 | blocksreleased += count; | |
9c03b2c0 | 265 | if (lastiblock[level] < 0) { |
035e92f1 KM |
266 | oip->i_ib[level] = 0; |
267 | ffs_blkfree(oip, bn, fs->fs_bsize); | |
9c03b2c0 | 268 | blocksreleased += nblocks; |
9c03b2c0 SL |
269 | } |
270 | } | |
271 | if (lastiblock[level] >= 0) | |
272 | goto done; | |
4f083fd7 | 273 | } |
9c03b2c0 | 274 | |
6459ebe0 | 275 | /* |
9c03b2c0 | 276 | * All whole direct blocks or frags. |
6459ebe0 | 277 | */ |
4f083fd7 | 278 | for (i = NDADDR - 1; i > lastblock; i--) { |
0308fc84 | 279 | register long bsize; |
4f083fd7 | 280 | |
035e92f1 | 281 | bn = oip->i_db[i]; |
4f083fd7 | 282 | if (bn == 0) |
5d5124a1 | 283 | continue; |
035e92f1 KM |
284 | oip->i_db[i] = 0; |
285 | bsize = blksize(fs, oip, i); | |
286 | ffs_blkfree(oip, bn, bsize); | |
0b355a6e | 287 | blocksreleased += btodb(bsize); |
4f083fd7 | 288 | } |
9c03b2c0 SL |
289 | if (lastblock < 0) |
290 | goto done; | |
291 | ||
4f083fd7 SL |
292 | /* |
293 | * Finally, look for a change in size of the | |
294 | * last direct block; release any frags. | |
295 | */ | |
035e92f1 | 296 | bn = oip->i_db[lastblock]; |
9c03b2c0 | 297 | if (bn != 0) { |
0308fc84 | 298 | long oldspace, newspace; |
9c03b2c0 | 299 | |
4f083fd7 SL |
300 | /* |
301 | * Calculate amount of space we're giving | |
302 | * back as old block size minus new block size. | |
303 | */ | |
035e92f1 KM |
304 | oldspace = blksize(fs, oip, lastblock); |
305 | oip->i_size = length; | |
306 | newspace = blksize(fs, oip, lastblock); | |
9c03b2c0 SL |
307 | if (newspace == 0) |
308 | panic("itrunc: newspace"); | |
309 | if (oldspace - newspace > 0) { | |
4f083fd7 SL |
310 | /* |
311 | * Block number of space to be free'd is | |
312 | * the old block # plus the number of frags | |
313 | * required for the storage we're keeping. | |
314 | */ | |
9c03b2c0 | 315 | bn += numfrags(fs, newspace); |
035e92f1 | 316 | ffs_blkfree(oip, bn, oldspace - newspace); |
08d9a8ec | 317 | blocksreleased += btodb(oldspace - newspace); |
4f083fd7 | 318 | } |
5d5124a1 | 319 | } |
4f083fd7 | 320 | done: |
aba1c8c0 | 321 | #ifdef DIAGNOSTIC |
9c03b2c0 | 322 | for (level = SINGLE; level <= TRIPLE; level++) |
035e92f1 | 323 | if (newblks[NDADDR + level] != oip->i_ib[level]) |
9c03b2c0 SL |
324 | panic("itrunc1"); |
325 | for (i = 0; i < NDADDR; i++) | |
035e92f1 | 326 | if (newblks[i] != oip->i_db[i]) |
9c03b2c0 | 327 | panic("itrunc2"); |
aba1c8c0 KM |
328 | if (length == 0 && |
329 | (ovp->v_dirtyblkhd.le_next || ovp->v_cleanblkhd.le_next)) | |
330 | panic("itrunc3"); | |
331 | #endif /* DIAGNOSTIC */ | |
035e92f1 KM |
332 | /* |
333 | * Put back the real size. | |
334 | */ | |
335 | oip->i_size = length; | |
08d9a8ec SL |
336 | oip->i_blocks -= blocksreleased; |
337 | if (oip->i_blocks < 0) /* sanity */ | |
338 | oip->i_blocks = 0; | |
dbb7672a | 339 | oip->i_flag |= ICHANGE; |
b4567e9c | 340 | #ifdef QUOTA |
a3116541 | 341 | (void) chkdq(oip, -blocksreleased, NOCRED, 0); |
89045c38 | 342 | #endif |
7188ac27 | 343 | return (allerror); |
5d5124a1 BJ |
344 | } |
345 | ||
4f083fd7 | 346 | /* |
0a52434b KB |
347 | * Release blocks associated with the inode ip and stored in the indirect |
348 | * block bn. Blocks are free'd in LIFO order up to (but not including) | |
349 | * lastbn. If level is greater than SINGLE, the block is an indirect block | |
350 | * and recursive calls to indirtrunc must be used to cleanse other indirect | |
351 | * blocks. | |
9c03b2c0 SL |
352 | * |
353 | * NB: triple indirect blocks are untested. | |
4f083fd7 | 354 | */ |
0a52434b | 355 | static int |
007fca48 | 356 | ffs_indirtrunc(ip, lbn, dbn, lastbn, level, countp) |
6459ebe0 | 357 | register struct inode *ip; |
d7313a2f | 358 | daddr_t lbn, lastbn; |
007fca48 | 359 | daddr_t dbn; |
9c03b2c0 | 360 | int level; |
7188ac27 | 361 | long *countp; |
5d5124a1 | 362 | { |
4f083fd7 | 363 | register int i; |
b30358ab | 364 | struct buf *bp; |
9c03b2c0 | 365 | register struct fs *fs = ip->i_fs; |
b30358ab | 366 | register daddr_t *bap; |
007fca48 | 367 | struct vnode *vp; |
d7313a2f | 368 | daddr_t *copy, nb, nlbn, last; |
7188ac27 KM |
369 | long blkcount, factor; |
370 | int nblocks, blocksreleased = 0; | |
007fca48 | 371 | int error = 0, allerror = 0; |
5d5124a1 | 372 | |
9c03b2c0 SL |
373 | /* |
374 | * Calculate index in current block of last | |
375 | * block to be kept. -1 indicates the entire | |
376 | * block so we need not calculate the index. | |
377 | */ | |
378 | factor = 1; | |
379 | for (i = SINGLE; i < level; i++) | |
380 | factor *= NINDIR(fs); | |
4f083fd7 | 381 | last = lastbn; |
9c03b2c0 SL |
382 | if (lastbn > 0) |
383 | last /= factor; | |
08d9a8ec | 384 | nblocks = btodb(fs->fs_bsize); |
9c03b2c0 | 385 | /* |
007fca48 MS |
386 | * Get buffer of block pointers, zero those entries corresponding |
387 | * to blocks to be free'd, and update on disk copy first. Since | |
388 | * double(triple) indirect before single(double) indirect, calls | |
389 | * to bmap on these blocks will fail. However, we already have | |
390 | * the on disk address, so we have to set the b_blkno field | |
391 | * explicitly instead of letting bread do everything for us. | |
9c03b2c0 | 392 | */ |
ec67a3ce MK |
393 | #ifdef SECSIZE |
394 | bp = bread(ip->i_dev, fsbtodb(fs, bn), (int)fs->fs_bsize, | |
395 | fs->fs_dbsize); | |
396 | #else SECSIZE | |
007fca48 | 397 | vp = ITOV(ip); |
646464db | 398 | bp = getblk(vp, lbn, (int)fs->fs_bsize, 0, 0); |
007fca48 MS |
399 | if (bp->b_flags & (B_DONE | B_DELWRI)) { |
400 | /* Braces must be here in case trace evaluates to nothing. */ | |
401 | trace(TR_BREADHIT, pack(vp, fs->fs_bsize), lbn); | |
402 | } else { | |
403 | trace(TR_BREADMISS, pack(vp, fs->fs_bsize), lbn); | |
404 | curproc->p_stats->p_ru.ru_inblock++; /* pay for read */ | |
405 | bp->b_flags |= B_READ; | |
406 | if (bp->b_bcount > bp->b_bufsize) | |
407 | panic("ffs_indirtrunc: bad buffer size"); | |
408 | bp->b_blkno = dbn; | |
409 | VOP_STRATEGY(bp); | |
410 | error = biowait(bp); | |
411 | } | |
7188ac27 | 412 | if (error) { |
9c03b2c0 | 413 | brelse(bp); |
7188ac27 KM |
414 | *countp = 0; |
415 | return (error); | |
9c03b2c0 | 416 | } |
007fca48 | 417 | |
dbb7672a | 418 | bap = (daddr_t *)bp->b_data; |
b30358ab KM |
419 | MALLOC(copy, daddr_t *, fs->fs_bsize, M_TEMP, M_WAITOK); |
420 | bcopy((caddr_t)bap, (caddr_t)copy, (u_int)fs->fs_bsize); | |
9c03b2c0 SL |
421 | bzero((caddr_t)&bap[last + 1], |
422 | (u_int)(NINDIR(fs) - (last + 1)) * sizeof (daddr_t)); | |
e038406d KM |
423 | if (last == -1) |
424 | bp->b_flags |= B_INVAL; | |
7188ac27 KM |
425 | error = bwrite(bp); |
426 | if (error) | |
427 | allerror = error; | |
b30358ab | 428 | bap = copy; |
4f083fd7 | 429 | |
9c03b2c0 SL |
430 | /* |
431 | * Recursively free totally unused blocks. | |
432 | */ | |
d7313a2f | 433 | for (i = NINDIR(fs) - 1, nlbn = lbn + 1 - i * factor; i > last; |
007fca48 | 434 | i--, nlbn += factor) { |
5d5124a1 | 435 | nb = bap[i]; |
4f083fd7 | 436 | if (nb == 0) |
5d5124a1 | 437 | continue; |
7188ac27 | 438 | if (level > SINGLE) { |
007fca48 MS |
439 | if (error = ffs_indirtrunc(ip, nlbn, |
440 | fsbtodb(fs, nb), (daddr_t)-1, level - 1, &blkcount)) | |
7188ac27 KM |
441 | allerror = error; |
442 | blocksreleased += blkcount; | |
443 | } | |
0308fc84 | 444 | ffs_blkfree(ip, nb, fs->fs_bsize); |
4f083fd7 | 445 | blocksreleased += nblocks; |
4f083fd7 | 446 | } |
9c03b2c0 SL |
447 | |
448 | /* | |
449 | * Recursively free last partial block. | |
450 | */ | |
451 | if (level > SINGLE && lastbn >= 0) { | |
452 | last = lastbn % factor; | |
4f083fd7 | 453 | nb = bap[i]; |
7188ac27 | 454 | if (nb != 0) { |
007fca48 MS |
455 | if (error = ffs_indirtrunc(ip, nlbn, fsbtodb(fs, nb), |
456 | last, level - 1, &blkcount)) | |
7188ac27 KM |
457 | allerror = error; |
458 | blocksreleased += blkcount; | |
459 | } | |
5d5124a1 | 460 | } |
b30358ab | 461 | FREE(copy, M_TEMP); |
7188ac27 KM |
462 | *countp = blocksreleased; |
463 | return (allerror); | |
5d5124a1 | 464 | } |