Commit | Line | Data |
---|---|---|
da7c5cc6 | 1 | /* |
7188ac27 KM |
2 | * Copyright (c) 1982, 1986, 1989 Regents of the University of California. |
3 | * All rights reserved. | |
da7c5cc6 | 4 | * |
b702c21d | 5 | * %sccs.include.redist.c% |
7188ac27 | 6 | * |
406c9a0d | 7 | * @(#)ffs_inode.c 7.53 (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> | |
5d5124a1 | 19 | |
8847a2f7 KM |
20 | #include <vm/vm.h> |
21 | ||
0a52434b KB |
22 | #include <ufs/ufs/quota.h> |
23 | #include <ufs/ufs/inode.h> | |
24 | #include <ufs/ufs/ufsmount.h> | |
25 | #include <ufs/ufs/ufs_extern.h> | |
c6f5111d | 26 | |
0a52434b KB |
27 | #include <ufs/ffs/fs.h> |
28 | #include <ufs/ffs/ffs_extern.h> | |
3ebac878 | 29 | |
0a52434b | 30 | static int ffs_indirtrunc __P((struct inode *, daddr_t, daddr_t, int, long *)); |
3ebac878 | 31 | |
0a52434b | 32 | extern u_long nextgennumber; |
2bf2d153 | 33 | |
0a52434b KB |
34 | int |
35 | ffs_init() | |
5d5124a1 | 36 | { |
0a52434b | 37 | return (ufs_init()); |
5d5124a1 BJ |
38 | } |
39 | ||
3ebac878 | 40 | /* |
832eaef9 KM |
41 | * Look up a UFS dinode number to find its incore vnode. |
42 | * If it is not in core, read it in from the specified device. | |
43 | * If it is in core, wait for the lock bit to clear, then | |
44 | * return the inode locked. Detection and handling of mount | |
45 | * points must be done by the calling routine. | |
5d5124a1 | 46 | */ |
9342689a JH |
47 | ffs_vget (ap) |
48 | struct vop_vget_args *ap; | |
5d5124a1 | 49 | { |
0a52434b KB |
50 | register struct fs *fs; |
51 | register struct inode *ip; | |
a9013e03 | 52 | struct ufsmount *ump; |
7188ac27 | 53 | struct buf *bp; |
1259a9f9 | 54 | struct dinode *dp; |
0a52434b | 55 | struct vnode *vp; |
4b61628b | 56 | union ihead *ih; |
0a52434b | 57 | dev_t dev; |
75e1b478 | 58 | int i, type, error; |
2e64ab65 | 59 | |
e1b76915 | 60 | ump = VFSTOUFS(ap->a_mp); |
a9013e03 | 61 | dev = ump->um_dev; |
e1b76915 | 62 | if ((*ap->a_vpp = ufs_ihashget(dev, ap->a_ino)) != NULL) |
0a52434b KB |
63 | return (0); |
64 | ||
65 | /* Allocate a new vnode/inode. */ | |
e1b76915 JH |
66 | if (error = getnewvnode(VT_UFS, ap->a_mp, ffs_vnodeop_p, &vp)) { |
67 | *ap->a_vpp = NULL; | |
7188ac27 KM |
68 | return (error); |
69 | } | |
75e1b478 KM |
70 | type = ump->um_devvp->v_tag == VT_MFS ? M_MFSNODE : M_FFSNODE; /* XXX */ |
71 | MALLOC(ip, struct inode *, sizeof(struct inode), type, M_WAITOK); | |
72 | vp->v_data = ip; | |
0a52434b | 73 | ip->i_vnode = vp; |
1259a9f9 KM |
74 | ip->i_flag = 0; |
75 | ip->i_devvp = 0; | |
1259a9f9 | 76 | ip->i_mode = 0; |
c9ad8afc | 77 | ip->i_diroff = 0; |
4754ee14 | 78 | ip->i_lockf = 0; |
baaa0677 | 79 | ip->i_fs = fs = ump->um_fs; |
a9013e03 | 80 | ip->i_dev = dev; |
e1b76915 | 81 | ip->i_number = ap->a_ino; |
1259a9f9 | 82 | #ifdef QUOTA |
4b61628b KM |
83 | for (i = 0; i < MAXQUOTAS; i++) |
84 | ip->i_dquot[i] = NODQUOT; | |
1259a9f9 KM |
85 | #endif |
86 | /* | |
87 | * Put it onto its hash chain and lock it so that other requests for | |
88 | * this inode will block if they arrive while we are sleeping waiting | |
89 | * for old data structures to be purged or for the contents of the | |
90 | * disk portion of this inode to be read. | |
91 | */ | |
0a52434b KB |
92 | ufs_ihashins(ip); |
93 | ||
94 | /* Read in the disk contents for the inode, copy into the inode. */ | |
e1b76915 | 95 | if (error = bread(ump->um_devvp, fsbtodb(fs, itod(fs, ap->a_ino)), |
a937f856 | 96 | (int)fs->fs_bsize, NOCRED, &bp)) { |
bd4160ab KM |
97 | /* |
98 | * The inode does not contain anything useful, so it would | |
75e1b478 KM |
99 | * be misleading to leave it on its hash chain. It will be |
100 | * returned to the free list by ufs_iput(). | |
bd4160ab KM |
101 | */ |
102 | remque(ip); | |
103 | ip->i_forw = ip; | |
104 | ip->i_back = ip; | |
0a52434b KB |
105 | |
106 | /* Unlock and discard unneeded inode. */ | |
107 | ufs_iput(ip); | |
7188ac27 | 108 | brelse(bp); |
e1b76915 | 109 | *ap->a_vpp = NULL; |
1259a9f9 | 110 | return (error); |
7188ac27 | 111 | } |
7188ac27 | 112 | dp = bp->b_un.b_dino; |
e1b76915 | 113 | dp += itoo(fs, ap->a_ino); |
1259a9f9 KM |
114 | ip->i_din = *dp; |
115 | brelse(bp); | |
0a52434b | 116 | |
1259a9f9 | 117 | /* |
75e1b478 KM |
118 | * Initialize the vnode from the inode, check for aliases. |
119 | * Note that the underlying vnode may have changed. | |
1259a9f9 | 120 | */ |
e1b76915 | 121 | if (error = ufs_vinit(ap->a_mp, ffs_specop_p, FFS_FIFOOPS, &vp)) { |
0a52434b | 122 | ufs_iput(ip); |
e1b76915 | 123 | *ap->a_vpp = NULL; |
0a52434b | 124 | return (error); |
7188ac27 | 125 | } |
a9013e03 KM |
126 | /* |
127 | * Finish inode initialization now that aliasing has been resolved. | |
128 | */ | |
a9013e03 KM |
129 | ip->i_devvp = ump->um_devvp; |
130 | VREF(ip->i_devvp); | |
afd7e202 KM |
131 | /* |
132 | * Set up a generation number for this inode if it does not | |
133 | * already have one. This should only happen on old filesystems. | |
134 | */ | |
135 | if (ip->i_gen == 0) { | |
136 | if (++nextgennumber < (u_long)time.tv_sec) | |
137 | nextgennumber = time.tv_sec; | |
138 | ip->i_gen = nextgennumber; | |
82161bc8 | 139 | if ((vp->v_mount->mnt_flag & MNT_RDONLY) == 0) |
afd7e202 KM |
140 | ip->i_flag |= IMOD; |
141 | } | |
9de329b9 KM |
142 | /* |
143 | * Ensure that uid and gid are correct. This is a temporary | |
144 | * fix until fsck has been changed to do the update. | |
145 | */ | |
146 | ip->i_uid = ip->i_din.di_ouid; | |
147 | ip->i_gid = ip->i_din.di_ogid; | |
148 | ||
e1b76915 | 149 | *ap->a_vpp = vp; |
7188ac27 KM |
150 | return (0); |
151 | } | |
3ebac878 | 152 | |
a1e9dd57 | 153 | /* |
832eaef9 | 154 | * Update the access, modified, and inode change times as specified |
a9013e03 | 155 | * by the IACC, IUPD, and ICHG flags respectively. The IMOD flag |
832eaef9 KM |
156 | * is used to specify that the inode needs to be updated but that |
157 | * the times have already been set. The access and modified times | |
158 | * are taken from the second and third parameters; the inode change | |
159 | * time is always taken from the current time. If waitfor is set, | |
160 | * then wait for the disk write of the inode to complete. | |
5d5124a1 | 161 | */ |
0a52434b | 162 | int |
9342689a JH |
163 | ffs_update (ap) |
164 | struct vop_update_args *ap; | |
5d5124a1 | 165 | { |
7188ac27 | 166 | struct buf *bp; |
a9013e03 | 167 | struct inode *ip; |
5d5124a1 | 168 | struct dinode *dp; |
ec67a3ce | 169 | register struct fs *fs; |
5d5124a1 | 170 | |
e1b76915 | 171 | if (ap->a_vp->v_mount->mnt_flag & MNT_RDONLY) |
7188ac27 | 172 | return (0); |
e1b76915 | 173 | ip = VTOI(ap->a_vp); |
a9013e03 KM |
174 | if ((ip->i_flag & (IUPD|IACC|ICHG|IMOD)) == 0) |
175 | return (0); | |
7188ac27 | 176 | if (ip->i_flag&IACC) |
e1b76915 | 177 | ip->i_atime.tv_sec = ap->a_ta->tv_sec; |
baaa0677 | 178 | if (ip->i_flag&IUPD) { |
e1b76915 | 179 | ip->i_mtime.tv_sec = ap->a_tm->tv_sec; |
baaa0677 KM |
180 | INCRQUAD(ip->i_modrev); |
181 | } | |
7188ac27 | 182 | if (ip->i_flag&ICHG) |
8847a2f7 | 183 | ip->i_ctime.tv_sec = time.tv_sec; |
7188ac27 | 184 | ip->i_flag &= ~(IUPD|IACC|ICHG|IMOD); |
9de329b9 KM |
185 | /* |
186 | * Ensure that uid and gid are correct. This is a temporary | |
187 | * fix until fsck has been changed to do the update. | |
188 | */ | |
189 | ip->i_din.di_ouid = ip->i_uid; | |
190 | ip->i_din.di_ogid = ip->i_gid; | |
a9013e03 KM |
191 | |
192 | fs = ip->i_fs; | |
193 | if (error = bread(ip->i_devvp, fsbtodb(fs, itod(fs, ip->i_number)), | |
194 | (int)fs->fs_bsize, NOCRED, &bp)) { | |
195 | brelse(bp); | |
196 | return (error); | |
197 | } | |
7188ac27 | 198 | dp = bp->b_un.b_dino + itoo(fs, ip->i_number); |
a1e9dd57 | 199 | *dp = ip->i_din; |
e1b76915 | 200 | if (ap->a_waitfor) |
7188ac27 | 201 | return (bwrite(bp)); |
a9013e03 | 202 | else { |
7188ac27 KM |
203 | bdwrite(bp); |
204 | return (0); | |
5d5124a1 BJ |
205 | } |
206 | } | |
207 | ||
9c03b2c0 SL |
208 | #define SINGLE 0 /* index of single indirect block */ |
209 | #define DOUBLE 1 /* index of double indirect block */ | |
210 | #define TRIPLE 2 /* index of triple indirect block */ | |
5d5124a1 | 211 | /* |
a1e9dd57 KM |
212 | * Truncate the inode ip to at most length size. Free affected disk |
213 | * blocks -- the blocks of the file are removed in reverse order. | |
9c03b2c0 SL |
214 | * |
215 | * NB: triple indirect blocks are untested. | |
5d5124a1 | 216 | */ |
9342689a JH |
217 | ffs_truncate (ap) |
218 | struct vop_truncate_args *ap; | |
5d5124a1 | 219 | { |
9342689a | 220 | USES_VOP_UPDATE; |
406c9a0d | 221 | register struct vnode *ovp = ap->a_vp; |
4f083fd7 | 222 | register daddr_t lastblock; |
a9013e03 | 223 | register struct inode *oip; |
a5e62f37 | 224 | daddr_t bn, lbn, lastiblock[NIADDR]; |
6459ebe0 | 225 | register struct fs *fs; |
9c03b2c0 | 226 | register struct inode *ip; |
28821bc5 | 227 | struct buf *bp; |
0308fc84 | 228 | int offset, size, level; |
7188ac27 | 229 | long count, nblocks, blocksreleased = 0; |
28821bc5 | 230 | register int i; |
e038406d | 231 | int aflags, error, allerror; |
9c03b2c0 | 232 | struct inode tip; |
0308fc84 | 233 | off_t osize; |
4f083fd7 | 234 | |
406c9a0d JH |
235 | vnode_pager_setsize(ovp, (u_long)ap->a_length); |
236 | oip = VTOI(ovp); | |
e1b76915 | 237 | if (oip->i_size <= ap->a_length) { |
7b2e4f05 | 238 | oip->i_flag |= ICHG|IUPD; |
406c9a0d | 239 | error = VOP_UPDATE(ovp, &time, &time, 1); |
7188ac27 | 240 | return (error); |
7b2e4f05 | 241 | } |
c0bb1685 | 242 | /* |
9c03b2c0 SL |
243 | * Calculate index into inode's block list of |
244 | * last direct and indirect blocks (if any) | |
245 | * which we want to keep. Lastblock is -1 when | |
246 | * the file is truncated to 0. | |
c0bb1685 | 247 | */ |
9c03b2c0 | 248 | fs = oip->i_fs; |
e1b76915 | 249 | lastblock = lblkno(fs, ap->a_length + fs->fs_bsize - 1) - 1; |
9c03b2c0 SL |
250 | lastiblock[SINGLE] = lastblock - NDADDR; |
251 | lastiblock[DOUBLE] = lastiblock[SINGLE] - NINDIR(fs); | |
252 | lastiblock[TRIPLE] = lastiblock[DOUBLE] - NINDIR(fs) * NINDIR(fs); | |
08d9a8ec | 253 | nblocks = btodb(fs->fs_bsize); |
6459ebe0 | 254 | /* |
28821bc5 KM |
255 | * Update the size of the file. If the file is not being |
256 | * truncated to a block boundry, the contents of the | |
257 | * partial block following the end of the file must be | |
258 | * zero'ed in case it ever become accessable again because | |
259 | * of subsequent file growth. | |
260 | */ | |
261 | osize = oip->i_size; | |
e1b76915 | 262 | offset = blkoff(fs, ap->a_length); |
28821bc5 | 263 | if (offset == 0) { |
e1b76915 | 264 | oip->i_size = ap->a_length; |
28821bc5 | 265 | } else { |
e1b76915 | 266 | lbn = lblkno(fs, ap->a_length); |
e038406d | 267 | aflags = B_CLRBUF; |
e1b76915 | 268 | if (ap->a_flags & IO_SYNC) |
e038406d | 269 | aflags |= B_SYNC; |
4b61628b KM |
270 | #ifdef QUOTA |
271 | if (error = getinoquota(oip)) | |
272 | return (error); | |
273 | #endif | |
e1b76915 | 274 | if (error = ffs_balloc(oip, lbn, offset, ap->a_cred, &bp, aflags)) |
7188ac27 | 275 | return (error); |
e1b76915 | 276 | oip->i_size = ap->a_length; |
28821bc5 | 277 | size = blksize(fs, oip, lbn); |
406c9a0d | 278 | (void) vnode_pager_uncache(ovp); |
a5e62f37 | 279 | bzero(bp->b_un.b_addr + offset, (unsigned)(size - offset)); |
9cf42d55 | 280 | allocbuf(bp, size); |
e1b76915 | 281 | if (ap->a_flags & IO_SYNC) |
e038406d KM |
282 | bwrite(bp); |
283 | else | |
284 | bdwrite(bp); | |
28821bc5 KM |
285 | } |
286 | /* | |
0a52434b KB |
287 | * Update file and block pointers on disk before we start freeing |
288 | * blocks. If we crash before free'ing blocks below, the blocks | |
289 | * will be returned to the free list. lastiblock values are also | |
290 | * normalized to -1 for calls to ffs_indirtrunc below. | |
6459ebe0 | 291 | */ |
9c03b2c0 | 292 | tip = *oip; |
28821bc5 | 293 | tip.i_size = osize; |
9c03b2c0 SL |
294 | for (level = TRIPLE; level >= SINGLE; level--) |
295 | if (lastiblock[level] < 0) { | |
296 | oip->i_ib[level] = 0; | |
297 | lastiblock[level] = -1; | |
4f083fd7 | 298 | } |
9c03b2c0 SL |
299 | for (i = NDADDR - 1; i > lastblock; i--) |
300 | oip->i_db[i] = 0; | |
9c03b2c0 | 301 | oip->i_flag |= ICHG|IUPD; |
406c9a0d JH |
302 | vinvalbuf(ovp, (ap->a_length > 0)); |
303 | allerror = VOP_UPDATE(ovp, &time, &time, MNT_WAIT); | |
9c03b2c0 | 304 | |
6459ebe0 | 305 | /* |
9c03b2c0 | 306 | * Indirect blocks first. |
6459ebe0 | 307 | */ |
28821bc5 | 308 | ip = &tip; |
9c03b2c0 SL |
309 | for (level = TRIPLE; level >= SINGLE; level--) { |
310 | bn = ip->i_ib[level]; | |
4f083fd7 | 311 | if (bn != 0) { |
0a52434b KB |
312 | error = ffs_indirtrunc(ip, |
313 | bn, lastiblock[level], level, &count); | |
7188ac27 KM |
314 | if (error) |
315 | allerror = error; | |
316 | blocksreleased += count; | |
9c03b2c0 SL |
317 | if (lastiblock[level] < 0) { |
318 | ip->i_ib[level] = 0; | |
0308fc84 | 319 | ffs_blkfree(ip, bn, fs->fs_bsize); |
9c03b2c0 | 320 | blocksreleased += nblocks; |
9c03b2c0 SL |
321 | } |
322 | } | |
323 | if (lastiblock[level] >= 0) | |
324 | goto done; | |
4f083fd7 | 325 | } |
9c03b2c0 | 326 | |
6459ebe0 | 327 | /* |
9c03b2c0 | 328 | * All whole direct blocks or frags. |
6459ebe0 | 329 | */ |
4f083fd7 | 330 | for (i = NDADDR - 1; i > lastblock; i--) { |
0308fc84 | 331 | register long bsize; |
4f083fd7 | 332 | |
6459ebe0 | 333 | bn = ip->i_db[i]; |
4f083fd7 | 334 | if (bn == 0) |
5d5124a1 | 335 | continue; |
4f083fd7 | 336 | ip->i_db[i] = 0; |
0308fc84 | 337 | bsize = blksize(fs, ip, i); |
0a52434b | 338 | ffs_blkfree(ip, bn, bsize); |
0b355a6e | 339 | blocksreleased += btodb(bsize); |
4f083fd7 | 340 | } |
9c03b2c0 SL |
341 | if (lastblock < 0) |
342 | goto done; | |
343 | ||
4f083fd7 SL |
344 | /* |
345 | * Finally, look for a change in size of the | |
346 | * last direct block; release any frags. | |
347 | */ | |
9c03b2c0 SL |
348 | bn = ip->i_db[lastblock]; |
349 | if (bn != 0) { | |
0308fc84 | 350 | long oldspace, newspace; |
9c03b2c0 | 351 | |
4f083fd7 SL |
352 | /* |
353 | * Calculate amount of space we're giving | |
354 | * back as old block size minus new block size. | |
355 | */ | |
9c03b2c0 | 356 | oldspace = blksize(fs, ip, lastblock); |
e1b76915 | 357 | ip->i_size = ap->a_length; |
9c03b2c0 SL |
358 | newspace = blksize(fs, ip, lastblock); |
359 | if (newspace == 0) | |
360 | panic("itrunc: newspace"); | |
361 | if (oldspace - newspace > 0) { | |
4f083fd7 SL |
362 | /* |
363 | * Block number of space to be free'd is | |
364 | * the old block # plus the number of frags | |
365 | * required for the storage we're keeping. | |
366 | */ | |
9c03b2c0 | 367 | bn += numfrags(fs, newspace); |
0a52434b | 368 | ffs_blkfree(ip, bn, oldspace - newspace); |
08d9a8ec | 369 | blocksreleased += btodb(oldspace - newspace); |
4f083fd7 | 370 | } |
5d5124a1 | 371 | } |
4f083fd7 | 372 | done: |
9c03b2c0 SL |
373 | /* BEGIN PARANOIA */ |
374 | for (level = SINGLE; level <= TRIPLE; level++) | |
375 | if (ip->i_ib[level] != oip->i_ib[level]) | |
376 | panic("itrunc1"); | |
377 | for (i = 0; i < NDADDR; i++) | |
378 | if (ip->i_db[i] != oip->i_db[i]) | |
379 | panic("itrunc2"); | |
380 | /* END PARANOIA */ | |
08d9a8ec SL |
381 | oip->i_blocks -= blocksreleased; |
382 | if (oip->i_blocks < 0) /* sanity */ | |
383 | oip->i_blocks = 0; | |
384 | oip->i_flag |= ICHG; | |
b4567e9c | 385 | #ifdef QUOTA |
4b61628b KM |
386 | if (!getinoquota(oip)) |
387 | (void) chkdq(oip, -blocksreleased, NOCRED, 0); | |
89045c38 | 388 | #endif |
7188ac27 | 389 | return (allerror); |
5d5124a1 BJ |
390 | } |
391 | ||
4f083fd7 | 392 | /* |
0a52434b KB |
393 | * Release blocks associated with the inode ip and stored in the indirect |
394 | * block bn. Blocks are free'd in LIFO order up to (but not including) | |
395 | * lastbn. If level is greater than SINGLE, the block is an indirect block | |
396 | * and recursive calls to indirtrunc must be used to cleanse other indirect | |
397 | * blocks. | |
9c03b2c0 SL |
398 | * |
399 | * NB: triple indirect blocks are untested. | |
4f083fd7 | 400 | */ |
0a52434b KB |
401 | static int |
402 | ffs_indirtrunc(ip, bn, lastbn, level, countp) | |
6459ebe0 | 403 | register struct inode *ip; |
4f083fd7 | 404 | daddr_t bn, lastbn; |
9c03b2c0 | 405 | int level; |
7188ac27 | 406 | long *countp; |
5d5124a1 | 407 | { |
4f083fd7 | 408 | register int i; |
b30358ab | 409 | struct buf *bp; |
9c03b2c0 | 410 | register struct fs *fs = ip->i_fs; |
b30358ab KM |
411 | register daddr_t *bap; |
412 | daddr_t *copy, nb, last; | |
7188ac27 KM |
413 | long blkcount, factor; |
414 | int nblocks, blocksreleased = 0; | |
415 | int error, allerror = 0; | |
5d5124a1 | 416 | |
9c03b2c0 SL |
417 | /* |
418 | * Calculate index in current block of last | |
419 | * block to be kept. -1 indicates the entire | |
420 | * block so we need not calculate the index. | |
421 | */ | |
422 | factor = 1; | |
423 | for (i = SINGLE; i < level; i++) | |
424 | factor *= NINDIR(fs); | |
4f083fd7 | 425 | last = lastbn; |
9c03b2c0 SL |
426 | if (lastbn > 0) |
427 | last /= factor; | |
08d9a8ec | 428 | nblocks = btodb(fs->fs_bsize); |
9c03b2c0 SL |
429 | /* |
430 | * Get buffer of block pointers, zero those | |
431 | * entries corresponding to blocks to be free'd, | |
432 | * and update on disk copy first. | |
433 | */ | |
ec67a3ce MK |
434 | #ifdef SECSIZE |
435 | bp = bread(ip->i_dev, fsbtodb(fs, bn), (int)fs->fs_bsize, | |
436 | fs->fs_dbsize); | |
437 | #else SECSIZE | |
a937f856 KM |
438 | error = bread(ip->i_devvp, fsbtodb(fs, bn), (int)fs->fs_bsize, |
439 | NOCRED, &bp); | |
7188ac27 | 440 | if (error) { |
9c03b2c0 | 441 | brelse(bp); |
7188ac27 KM |
442 | *countp = 0; |
443 | return (error); | |
9c03b2c0 SL |
444 | } |
445 | bap = bp->b_un.b_daddr; | |
b30358ab KM |
446 | MALLOC(copy, daddr_t *, fs->fs_bsize, M_TEMP, M_WAITOK); |
447 | bcopy((caddr_t)bap, (caddr_t)copy, (u_int)fs->fs_bsize); | |
9c03b2c0 SL |
448 | bzero((caddr_t)&bap[last + 1], |
449 | (u_int)(NINDIR(fs) - (last + 1)) * sizeof (daddr_t)); | |
e038406d KM |
450 | if (last == -1) |
451 | bp->b_flags |= B_INVAL; | |
7188ac27 KM |
452 | error = bwrite(bp); |
453 | if (error) | |
454 | allerror = error; | |
b30358ab | 455 | bap = copy; |
4f083fd7 | 456 | |
9c03b2c0 SL |
457 | /* |
458 | * Recursively free totally unused blocks. | |
459 | */ | |
460 | for (i = NINDIR(fs) - 1; i > last; i--) { | |
5d5124a1 | 461 | nb = bap[i]; |
4f083fd7 | 462 | if (nb == 0) |
5d5124a1 | 463 | continue; |
7188ac27 | 464 | if (level > SINGLE) { |
0a52434b KB |
465 | if (error = ffs_indirtrunc(ip, |
466 | nb, (daddr_t)-1, level - 1, &blkcount)) | |
7188ac27 KM |
467 | allerror = error; |
468 | blocksreleased += blkcount; | |
469 | } | |
0308fc84 | 470 | ffs_blkfree(ip, nb, fs->fs_bsize); |
4f083fd7 | 471 | blocksreleased += nblocks; |
4f083fd7 | 472 | } |
9c03b2c0 SL |
473 | |
474 | /* | |
475 | * Recursively free last partial block. | |
476 | */ | |
477 | if (level > SINGLE && lastbn >= 0) { | |
478 | last = lastbn % factor; | |
4f083fd7 | 479 | nb = bap[i]; |
7188ac27 | 480 | if (nb != 0) { |
0a52434b KB |
481 | if (error = |
482 | ffs_indirtrunc(ip, nb, last, level - 1, &blkcount)) | |
7188ac27 KM |
483 | allerror = error; |
484 | blocksreleased += blkcount; | |
485 | } | |
5d5124a1 | 486 | } |
b30358ab | 487 | FREE(copy, M_TEMP); |
7188ac27 KM |
488 | *countp = blocksreleased; |
489 | return (allerror); | |
5d5124a1 | 490 | } |