| File: | ufs/ffs/ffs_balloc.c |
| Warning: | line 750, column 4 Value stored to 'unwindidx' is never read |
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| 1 | /* $OpenBSD: ffs_balloc.c,v 1.45 2019/07/19 00:24:31 cheloha Exp $ */ |
| 2 | /* $NetBSD: ffs_balloc.c,v 1.3 1996/02/09 22:22:21 christos Exp $ */ |
| 3 | |
| 4 | /* |
| 5 | * Copyright (c) 2002 Networks Associates Technology, Inc. |
| 6 | * All rights reserved. |
| 7 | * |
| 8 | * This software was developed for the FreeBSD Project by Marshall |
| 9 | * Kirk McKusick and Network Associates Laboratories, the Security |
| 10 | * Research Division of Network Associates, Inc. under DARPA/SPAWAR |
| 11 | * contract N66001-01-C-8035 ("CBOSS"), as part of the DARPA CHATS |
| 12 | * research program. |
| 13 | * |
| 14 | * Copyright (c) 1982, 1986, 1989, 1993 |
| 15 | * The Regents of the University of California. All rights reserved. |
| 16 | * |
| 17 | * Redistribution and use in source and binary forms, with or without |
| 18 | * modification, are permitted provided that the following conditions |
| 19 | * are met: |
| 20 | * 1. Redistributions of source code must retain the above copyright |
| 21 | * notice, this list of conditions and the following disclaimer. |
| 22 | * 2. Redistributions in binary form must reproduce the above copyright |
| 23 | * notice, this list of conditions and the following disclaimer in the |
| 24 | * documentation and/or other materials provided with the distribution. |
| 25 | * 3. Neither the name of the University nor the names of its contributors |
| 26 | * may be used to endorse or promote products derived from this software |
| 27 | * without specific prior written permission. |
| 28 | * |
| 29 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
| 30 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 31 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 32 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
| 33 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 34 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 35 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 36 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 37 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 38 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 39 | * SUCH DAMAGE. |
| 40 | * |
| 41 | * @(#)ffs_balloc.c 8.4 (Berkeley) 9/23/93 |
| 42 | */ |
| 43 | |
| 44 | #include <sys/param.h> |
| 45 | #include <sys/systm.h> |
| 46 | #include <sys/buf.h> |
| 47 | #include <sys/proc.h> |
| 48 | #include <sys/mount.h> |
| 49 | #include <sys/vnode.h> |
| 50 | |
| 51 | #include <ufs/ufs/quota.h> |
| 52 | #include <ufs/ufs/inode.h> |
| 53 | #include <ufs/ufs/ufsmount.h> |
| 54 | #include <ufs/ufs/ufs_extern.h> |
| 55 | |
| 56 | #include <ufs/ffs/fs.h> |
| 57 | #include <ufs/ffs/ffs_extern.h> |
| 58 | |
| 59 | int ffs1_balloc(struct inode *, off_t, int, struct ucred *, int, struct buf **); |
| 60 | #ifdef FFS21 |
| 61 | int ffs2_balloc(struct inode *, off_t, int, struct ucred *, int, struct buf **); |
| 62 | #endif |
| 63 | |
| 64 | /* |
| 65 | * Balloc defines the structure of file system storage |
| 66 | * by allocating the physical blocks on a device given |
| 67 | * the inode and the logical block number in a file. |
| 68 | */ |
| 69 | int |
| 70 | ffs1_balloc(struct inode *ip, off_t startoffset, int size, struct ucred *cred, |
| 71 | int flags, struct buf **bpp) |
| 72 | { |
| 73 | daddr_t lbn, nb, newb, pref; |
| 74 | struct fs *fs; |
| 75 | struct buf *bp, *nbp; |
| 76 | struct vnode *vp; |
| 77 | struct proc *p; |
| 78 | struct indir indirs[NIADDR3 + 2]; |
| 79 | int32_t *bap; |
| 80 | int deallocated, osize, nsize, num, i, error; |
| 81 | int32_t *allocib, *blkp, *allocblk, allociblk[NIADDR3+1]; |
| 82 | int unwindidx = -1; |
| 83 | |
| 84 | vp = ITOV(ip)((ip)->i_vnode); |
| 85 | fs = ip->i_fsinode_u.fs; |
| 86 | p = curproc({struct cpu_info *__ci; asm volatile("movq %%gs:%P1,%0" : "=r" (__ci) :"n" (__builtin_offsetof(struct cpu_info, ci_self))); __ci;})->ci_curproc; |
| 87 | lbn = lblkno(fs, startoffset)((startoffset) >> (fs)->fs_bshift); |
| 88 | size = blkoff(fs, startoffset)((startoffset) & (fs)->fs_qbmask) + size; |
| 89 | if (size > fs->fs_bsize) |
| 90 | panic("ffs1_balloc: blk too big"); |
| 91 | if (bpp != NULL((void *)0)) |
| 92 | *bpp = NULL((void *)0); |
| 93 | if (lbn < 0) |
| 94 | return (EFBIG27); |
| 95 | |
| 96 | /* |
| 97 | * If the next write will extend the file into a new block, |
| 98 | * and the file is currently composed of a fragment |
| 99 | * this fragment has to be extended to be a full block. |
| 100 | */ |
| 101 | nb = lblkno(fs, ip->i_ffs1_size)((ip->dinode_u.ffs1_din->di_size) >> (fs)->fs_bshift ); |
| 102 | if (nb < NDADDR12 && nb < lbn) { |
| 103 | osize = blksize(fs, ip, nb)(((nb) >= 12 || ((((ip))->i_ump->um_fstype == 1) ? ( (ip))->dinode_u.ffs1_din->di_size : ((ip))->dinode_u .ffs2_din->di_size) >= ((nb) + 1) << (fs)->fs_bshift ) ? (u_int64_t)(fs)->fs_bsize : ((((((((((ip))->i_ump-> um_fstype == 1) ? ((ip))->dinode_u.ffs1_din->di_size : ( (ip))->dinode_u.ffs2_din->di_size)) & (fs)->fs_qbmask )) + (fs)->fs_qfmask) & (fs)->fs_fmask))); |
| 104 | if (osize < fs->fs_bsize && osize > 0) { |
| 105 | error = ffs_realloccg(ip, nb, |
| 106 | ffs1_blkpref(ip, nb, (int)nb, &ip->i_ffs1_dbdinode_u.ffs1_din->di_db[0]), |
| 107 | osize, (int)fs->fs_bsize, cred, bpp, &newb); |
| 108 | if (error) |
| 109 | return (error); |
| 110 | if (DOINGSOFTDEP(vp)((vp)->v_mount->mnt_flag & 0x04000000)) |
| 111 | softdep_setup_allocdirect(ip, nb, newb, |
| 112 | ip->i_ffs1_dbdinode_u.ffs1_din->di_db[nb], fs->fs_bsize, osize, |
| 113 | bpp ? *bpp : NULL((void *)0)); |
| 114 | |
| 115 | ip->i_ffs1_sizedinode_u.ffs1_din->di_size = lblktosize(fs, nb + 1)((off_t)(nb + 1) << (fs)->fs_bshift); |
| 116 | uvm_vnp_setsize(vp, ip->i_ffs1_sizedinode_u.ffs1_din->di_size); |
| 117 | ip->i_ffs1_dbdinode_u.ffs1_din->di_db[nb] = newb; |
| 118 | ip->i_flag |= IN_CHANGE0x0002 | IN_UPDATE0x0004; |
| 119 | if (bpp != NULL((void *)0)) { |
| 120 | if (flags & B_SYNC0x02) |
| 121 | bwrite(*bpp); |
| 122 | else |
| 123 | bawrite(*bpp); |
| 124 | } |
| 125 | } |
| 126 | } |
| 127 | /* |
| 128 | * The first NDADDR blocks are direct blocks |
| 129 | */ |
| 130 | if (lbn < NDADDR12) { |
| 131 | nb = ip->i_ffs1_dbdinode_u.ffs1_din->di_db[lbn]; |
| 132 | if (nb != 0 && ip->i_ffs1_sizedinode_u.ffs1_din->di_size >= lblktosize(fs, lbn + 1)((off_t)(lbn + 1) << (fs)->fs_bshift)) { |
| 133 | /* |
| 134 | * The block is an already-allocated direct block |
| 135 | * and the file already extends past this block, |
| 136 | * thus this must be a whole block. |
| 137 | * Just read the block (if requested). |
| 138 | */ |
| 139 | |
| 140 | if (bpp != NULL((void *)0)) { |
| 141 | error = bread(vp, lbn, fs->fs_bsize, bpp); |
| 142 | if (error) { |
| 143 | brelse(*bpp); |
| 144 | return (error); |
| 145 | } |
| 146 | } |
| 147 | return (0); |
| 148 | } |
| 149 | if (nb != 0) { |
| 150 | /* |
| 151 | * Consider need to reallocate a fragment. |
| 152 | */ |
| 153 | osize = fragroundup(fs, blkoff(fs, ip->i_ffs1_size))(((((ip->dinode_u.ffs1_din->di_size) & (fs)->fs_qbmask )) + (fs)->fs_qfmask) & (fs)->fs_fmask); |
| 154 | nsize = fragroundup(fs, size)(((size) + (fs)->fs_qfmask) & (fs)->fs_fmask); |
| 155 | if (nsize <= osize) { |
| 156 | /* |
| 157 | * The existing block is already |
| 158 | * at least as big as we want. |
| 159 | * Just read the block (if requested). |
| 160 | */ |
| 161 | if (bpp != NULL((void *)0)) { |
| 162 | error = bread(vp, lbn, fs->fs_bsize, |
| 163 | bpp); |
| 164 | if (error) { |
| 165 | brelse(*bpp); |
| 166 | return (error); |
| 167 | } |
| 168 | buf_adjcnt((*bpp), osize); |
| 169 | } |
| 170 | return (0); |
| 171 | } else { |
| 172 | /* |
| 173 | * The existing block is smaller than we |
| 174 | * want, grow it. |
| 175 | */ |
| 176 | error = ffs_realloccg(ip, lbn, |
| 177 | ffs1_blkpref(ip, lbn, (int)lbn, |
| 178 | &ip->i_ffs1_dbdinode_u.ffs1_din->di_db[0]), |
| 179 | osize, nsize, cred, bpp, &newb); |
| 180 | if (error) |
| 181 | return (error); |
| 182 | if (DOINGSOFTDEP(vp)((vp)->v_mount->mnt_flag & 0x04000000)) |
| 183 | softdep_setup_allocdirect(ip, lbn, |
| 184 | newb, nb, nsize, osize, |
| 185 | bpp ? *bpp : NULL((void *)0)); |
| 186 | } |
| 187 | } else { |
| 188 | /* |
| 189 | * The block was not previously allocated, |
| 190 | * allocate a new block or fragment. |
| 191 | */ |
| 192 | |
| 193 | if (ip->i_ffs1_sizedinode_u.ffs1_din->di_size < lblktosize(fs, lbn + 1)((off_t)(lbn + 1) << (fs)->fs_bshift)) |
| 194 | nsize = fragroundup(fs, size)(((size) + (fs)->fs_qfmask) & (fs)->fs_fmask); |
| 195 | else |
| 196 | nsize = fs->fs_bsize; |
| 197 | error = ffs_alloc(ip, lbn, |
| 198 | ffs1_blkpref(ip, lbn, (int)lbn, &ip->i_ffs1_dbdinode_u.ffs1_din->di_db[0]), |
| 199 | nsize, cred, &newb); |
| 200 | if (error) |
| 201 | return (error); |
| 202 | if (bpp != NULL((void *)0)) { |
| 203 | *bpp = getblk(vp, lbn, fs->fs_bsize, 0, INFSLP0xffffffffffffffffULL); |
| 204 | if (nsize < fs->fs_bsize) |
| 205 | (*bpp)->b_bcount = nsize; |
| 206 | (*bpp)->b_blkno = fsbtodb(fs, newb)((newb) << (fs)->fs_fsbtodb); |
| 207 | if (flags & B_CLRBUF0x01) |
| 208 | clrbuf(*bpp){ __builtin_bzero(((*bpp)->b_data), ((*bpp)->b_bcount)) ; (*bpp)->b_resid = 0; }; |
| 209 | } |
| 210 | if (DOINGSOFTDEP(vp)((vp)->v_mount->mnt_flag & 0x04000000)) |
| 211 | softdep_setup_allocdirect(ip, lbn, newb, 0, |
| 212 | nsize, 0, bpp ? *bpp : NULL((void *)0)); |
| 213 | } |
| 214 | ip->i_ffs1_dbdinode_u.ffs1_din->di_db[lbn] = newb; |
| 215 | ip->i_flag |= IN_CHANGE0x0002 | IN_UPDATE0x0004; |
| 216 | return (0); |
| 217 | } |
| 218 | |
| 219 | /* |
| 220 | * Determine the number of levels of indirection. |
| 221 | */ |
| 222 | pref = 0; |
| 223 | if ((error = ufs_getlbns(vp, lbn, indirs, &num)) != 0) |
| 224 | return(error); |
| 225 | #ifdef DIAGNOSTIC1 |
| 226 | if (num < 1) |
| 227 | panic ("ffs1_balloc: ufs_bmaparray returned indirect block"); |
| 228 | #endif |
| 229 | /* |
| 230 | * Fetch the first indirect block allocating if necessary. |
| 231 | */ |
| 232 | --num; |
| 233 | nb = ip->i_ffs1_ibdinode_u.ffs1_din->di_ib[indirs[0].in_off]; |
| 234 | |
| 235 | allocib = NULL((void *)0); |
| 236 | allocblk = allociblk; |
| 237 | if (nb == 0) { |
| 238 | pref = ffs1_blkpref(ip, lbn, -indirs[0].in_off - 1, NULL((void *)0)); |
| 239 | error = ffs_alloc(ip, lbn, pref, (int)fs->fs_bsize, |
| 240 | cred, &newb); |
| 241 | if (error) |
| 242 | goto fail; |
| 243 | nb = newb; |
| 244 | |
| 245 | *allocblk++ = nb; |
| 246 | bp = getblk(vp, indirs[1].in_lbn, fs->fs_bsize, 0, INFSLP0xffffffffffffffffULL); |
| 247 | bp->b_blkno = fsbtodb(fs, nb)((nb) << (fs)->fs_fsbtodb); |
| 248 | clrbuf(bp){ __builtin_bzero(((bp)->b_data), ((bp)->b_bcount)); (bp )->b_resid = 0; }; |
| 249 | |
| 250 | if (DOINGSOFTDEP(vp)((vp)->v_mount->mnt_flag & 0x04000000)) { |
| 251 | softdep_setup_allocdirect(ip, NDADDR12 + indirs[0].in_off, |
| 252 | newb, 0, fs->fs_bsize, 0, bp); |
| 253 | bdwrite(bp); |
| 254 | } else { |
| 255 | /* |
| 256 | * Write synchronously so that indirect blocks |
| 257 | * never point at garbage. |
| 258 | */ |
| 259 | if ((error = bwrite(bp)) != 0) |
| 260 | goto fail; |
| 261 | } |
| 262 | allocib = &ip->i_ffs1_ibdinode_u.ffs1_din->di_ib[indirs[0].in_off]; |
| 263 | *allocib = nb; |
| 264 | ip->i_flag |= IN_CHANGE0x0002 | IN_UPDATE0x0004; |
| 265 | } |
| 266 | |
| 267 | /* |
| 268 | * Fetch through the indirect blocks, allocating as necessary. |
| 269 | */ |
| 270 | for (i = 1;;) { |
| 271 | error = bread(vp, indirs[i].in_lbn, (int)fs->fs_bsize, &bp); |
| 272 | if (error) { |
| 273 | brelse(bp); |
| 274 | goto fail; |
| 275 | } |
| 276 | bap = (int32_t *)bp->b_data; |
| 277 | nb = bap[indirs[i].in_off]; |
| 278 | if (i == num) |
| 279 | break; |
| 280 | i++; |
| 281 | if (nb != 0) { |
| 282 | brelse(bp); |
| 283 | continue; |
| 284 | } |
| 285 | if (pref == 0) |
| 286 | pref = ffs1_blkpref(ip, lbn, i - num - 1, NULL((void *)0)); |
| 287 | error = ffs_alloc(ip, lbn, pref, (int)fs->fs_bsize, cred, |
| 288 | &newb); |
| 289 | if (error) { |
| 290 | brelse(bp); |
| 291 | goto fail; |
| 292 | } |
| 293 | nb = newb; |
| 294 | *allocblk++ = nb; |
| 295 | nbp = getblk(vp, indirs[i].in_lbn, fs->fs_bsize, 0, INFSLP0xffffffffffffffffULL); |
| 296 | nbp->b_blkno = fsbtodb(fs, nb)((nb) << (fs)->fs_fsbtodb); |
| 297 | clrbuf(nbp){ __builtin_bzero(((nbp)->b_data), ((nbp)->b_bcount)); ( nbp)->b_resid = 0; }; |
| 298 | |
| 299 | if (DOINGSOFTDEP(vp)((vp)->v_mount->mnt_flag & 0x04000000)) { |
| 300 | softdep_setup_allocindir_meta(nbp, ip, bp, |
| 301 | indirs[i - 1].in_off, nb); |
| 302 | bdwrite(nbp); |
| 303 | } else { |
| 304 | /* |
| 305 | * Write synchronously so that indirect blocks |
| 306 | * never point at garbage. |
| 307 | */ |
| 308 | if ((error = bwrite(nbp)) != 0) { |
| 309 | brelse(bp); |
| 310 | goto fail; |
| 311 | } |
| 312 | } |
| 313 | bap[indirs[i - 1].in_off] = nb; |
| 314 | if (allocib == NULL((void *)0) && unwindidx < 0) |
| 315 | unwindidx = i - 1; |
| 316 | /* |
| 317 | * If required, write synchronously, otherwise use |
| 318 | * delayed write. |
| 319 | */ |
| 320 | if (flags & B_SYNC0x02) { |
| 321 | bwrite(bp); |
| 322 | } else { |
| 323 | bdwrite(bp); |
| 324 | } |
| 325 | } |
| 326 | /* |
| 327 | * Get the data block, allocating if necessary. |
| 328 | */ |
| 329 | if (nb == 0) { |
| 330 | pref = ffs1_blkpref(ip, lbn, indirs[i].in_off, &bap[0]); |
| 331 | error = ffs_alloc(ip, lbn, pref, (int)fs->fs_bsize, cred, |
| 332 | &newb); |
| 333 | if (error) { |
| 334 | brelse(bp); |
| 335 | goto fail; |
| 336 | } |
| 337 | nb = newb; |
| 338 | *allocblk++ = nb; |
| 339 | if (bpp != NULL((void *)0)) { |
| 340 | nbp = getblk(vp, lbn, fs->fs_bsize, 0, INFSLP0xffffffffffffffffULL); |
| 341 | nbp->b_blkno = fsbtodb(fs, nb)((nb) << (fs)->fs_fsbtodb); |
| 342 | if (flags & B_CLRBUF0x01) |
| 343 | clrbuf(nbp){ __builtin_bzero(((nbp)->b_data), ((nbp)->b_bcount)); ( nbp)->b_resid = 0; }; |
| 344 | *bpp = nbp; |
| 345 | } |
| 346 | if (DOINGSOFTDEP(vp)((vp)->v_mount->mnt_flag & 0x04000000)) |
| 347 | softdep_setup_allocindir_page(ip, lbn, bp, |
| 348 | indirs[i].in_off, nb, 0, bpp ? *bpp : NULL((void *)0)); |
| 349 | bap[indirs[i].in_off] = nb; |
| 350 | /* |
| 351 | * If required, write synchronously, otherwise use |
| 352 | * delayed write. |
| 353 | */ |
| 354 | if (flags & B_SYNC0x02) { |
| 355 | bwrite(bp); |
| 356 | } else { |
| 357 | bdwrite(bp); |
| 358 | } |
| 359 | return (0); |
| 360 | } |
| 361 | brelse(bp); |
| 362 | if (bpp != NULL((void *)0)) { |
| 363 | if (flags & B_CLRBUF0x01) { |
| 364 | error = bread(vp, lbn, (int)fs->fs_bsize, &nbp); |
| 365 | if (error) { |
| 366 | brelse(nbp); |
| 367 | goto fail; |
| 368 | } |
| 369 | } else { |
| 370 | nbp = getblk(vp, lbn, fs->fs_bsize, 0, INFSLP0xffffffffffffffffULL); |
| 371 | nbp->b_blkno = fsbtodb(fs, nb)((nb) << (fs)->fs_fsbtodb); |
| 372 | } |
| 373 | *bpp = nbp; |
| 374 | } |
| 375 | return (0); |
| 376 | |
| 377 | fail: |
| 378 | /* |
| 379 | * If we have failed to allocate any blocks, simply return the error. |
| 380 | * This is the usual case and avoids the need to fsync the file. |
| 381 | */ |
| 382 | if (allocblk == allociblk && allocib == NULL((void *)0) && unwindidx == -1) |
| 383 | return (error); |
| 384 | /* |
| 385 | * If we have failed part way through block allocation, we have to |
| 386 | * deallocate any indirect blocks that we have allocated. We have to |
| 387 | * fsync the file before we start to get rid of all of its |
| 388 | * dependencies so that we do not leave them dangling. We have to sync |
| 389 | * it at the end so that the softdep code does not find any untracked |
| 390 | * changes. Although this is really slow, running out of disk space is |
| 391 | * not expected to be a common occurrence. The error return from fsync |
| 392 | * is ignored as we already have an error to return to the user. |
| 393 | */ |
| 394 | VOP_FSYNC(vp, p->p_ucred, MNT_WAIT1, p); |
| 395 | for (deallocated = 0, blkp = allociblk; blkp < allocblk; blkp++) { |
| 396 | ffs_blkfree(ip, *blkp, fs->fs_bsize); |
| 397 | deallocated += fs->fs_bsize; |
| 398 | } |
| 399 | if (allocib != NULL((void *)0)) { |
| 400 | *allocib = 0; |
| 401 | } else if (unwindidx >= 0) { |
| 402 | int r; |
| 403 | |
| 404 | r = bread(vp, indirs[unwindidx].in_lbn, (int)fs->fs_bsize, &bp); |
| 405 | if (r) |
| 406 | panic("Could not unwind indirect block, error %d", r); |
| 407 | bap = (int32_t *)bp->b_data; |
| 408 | bap[indirs[unwindidx].in_off] = 0; |
| 409 | if (flags & B_SYNC0x02) { |
| 410 | bwrite(bp); |
| 411 | } else { |
| 412 | bdwrite(bp); |
| 413 | } |
| 414 | } |
| 415 | if (deallocated) { |
| 416 | /* |
| 417 | * Restore user's disk quota because allocation failed. |
| 418 | */ |
| 419 | (void)ufs_quota_free_blocks(ip, btodb(deallocated), cred)ufs_quota_free_blocks2(ip, ((deallocated) >> 9), cred, 0 ); |
| 420 | |
| 421 | ip->i_ffs1_blocksdinode_u.ffs1_din->di_blocks -= btodb(deallocated)((deallocated) >> 9); |
| 422 | ip->i_flag |= IN_CHANGE0x0002 | IN_UPDATE0x0004; |
| 423 | } |
| 424 | VOP_FSYNC(vp, p->p_ucred, MNT_WAIT1, p); |
| 425 | return (error); |
| 426 | } |
| 427 | |
| 428 | #ifdef FFS21 |
| 429 | int |
| 430 | ffs2_balloc(struct inode *ip, off_t off, int size, struct ucred *cred, |
| 431 | int flags, struct buf **bpp) |
| 432 | { |
| 433 | daddr_t lbn, lastlbn, nb, newb, *blkp; |
| 434 | daddr_t pref, *allocblk, allociblk[NIADDR3 + 1]; |
| 435 | daddr_t *bap, *allocib; |
| 436 | int deallocated, osize, nsize, num, i, error, unwindidx, r; |
| 437 | struct buf *bp, *nbp; |
| 438 | struct indir indirs[NIADDR3 + 2]; |
| 439 | struct fs *fs; |
| 440 | struct vnode *vp; |
| 441 | struct proc *p; |
| 442 | |
| 443 | vp = ITOV(ip)((ip)->i_vnode); |
| 444 | fs = ip->i_fsinode_u.fs; |
| 445 | p = curproc({struct cpu_info *__ci; asm volatile("movq %%gs:%P1,%0" : "=r" (__ci) :"n" (__builtin_offsetof(struct cpu_info, ci_self))); __ci;})->ci_curproc; |
| 446 | unwindidx = -1; |
| 447 | |
| 448 | lbn = lblkno(fs, off)((off) >> (fs)->fs_bshift); |
| 449 | size = blkoff(fs, off)((off) & (fs)->fs_qbmask) + size; |
| 450 | |
| 451 | if (size > fs->fs_bsize) |
| 452 | panic("ffs2_balloc: block too big"); |
| 453 | |
| 454 | if (bpp != NULL((void *)0)) |
| 455 | *bpp = NULL((void *)0); |
| 456 | |
| 457 | if (lbn < 0) |
| 458 | return (EFBIG27); |
| 459 | |
| 460 | /* |
| 461 | * If the next write will extend the file into a new block, and the |
| 462 | * file is currently composed of a fragment, this fragment has to be |
| 463 | * extended to be a full block. |
| 464 | */ |
| 465 | lastlbn = lblkno(fs, ip->i_ffs2_size)((ip->dinode_u.ffs2_din->di_size) >> (fs)->fs_bshift ); |
| 466 | if (lastlbn < NDADDR12 && lastlbn < lbn) { |
| 467 | nb = lastlbn; |
| 468 | osize = blksize(fs, ip, nb)(((nb) >= 12 || ((((ip))->i_ump->um_fstype == 1) ? ( (ip))->dinode_u.ffs1_din->di_size : ((ip))->dinode_u .ffs2_din->di_size) >= ((nb) + 1) << (fs)->fs_bshift ) ? (u_int64_t)(fs)->fs_bsize : ((((((((((ip))->i_ump-> um_fstype == 1) ? ((ip))->dinode_u.ffs1_din->di_size : ( (ip))->dinode_u.ffs2_din->di_size)) & (fs)->fs_qbmask )) + (fs)->fs_qfmask) & (fs)->fs_fmask))); |
| 469 | if (osize < fs->fs_bsize && osize > 0) { |
| 470 | error = ffs_realloccg(ip, nb, ffs2_blkpref(ip, |
| 471 | lastlbn, nb, &ip->i_ffs2_dbdinode_u.ffs2_din->di_db[0]), osize, |
| 472 | (int) fs->fs_bsize, cred, bpp, &newb); |
| 473 | if (error) |
| 474 | return (error); |
| 475 | |
| 476 | if (DOINGSOFTDEP(vp)((vp)->v_mount->mnt_flag & 0x04000000)) |
| 477 | softdep_setup_allocdirect(ip, nb, newb, |
| 478 | ip->i_ffs2_dbdinode_u.ffs2_din->di_db[nb], fs->fs_bsize, osize, |
| 479 | bpp ? *bpp : NULL((void *)0)); |
| 480 | |
| 481 | ip->i_ffs2_sizedinode_u.ffs2_din->di_size = lblktosize(fs, nb + 1)((off_t)(nb + 1) << (fs)->fs_bshift); |
| 482 | uvm_vnp_setsize(vp, ip->i_ffs2_sizedinode_u.ffs2_din->di_size); |
| 483 | ip->i_ffs2_dbdinode_u.ffs2_din->di_db[nb] = newb; |
| 484 | ip->i_flag |= IN_CHANGE0x0002 | IN_UPDATE0x0004; |
| 485 | |
| 486 | if (bpp) { |
| 487 | if (flags & B_SYNC0x02) |
| 488 | bwrite(*bpp); |
| 489 | else |
| 490 | bawrite(*bpp); |
| 491 | } |
| 492 | } |
| 493 | } |
| 494 | |
| 495 | /* |
| 496 | * The first NDADDR blocks are direct. |
| 497 | */ |
| 498 | if (lbn < NDADDR12) { |
| 499 | |
| 500 | nb = ip->i_ffs2_dbdinode_u.ffs2_din->di_db[lbn]; |
| 501 | |
| 502 | if (nb != 0 && ip->i_ffs2_sizedinode_u.ffs2_din->di_size >= lblktosize(fs, lbn + 1)((off_t)(lbn + 1) << (fs)->fs_bshift)) { |
| 503 | /* |
| 504 | * The direct block is already allocated and the file |
| 505 | * extends past this block, thus this must be a whole |
| 506 | * block. Just read it, if requested. |
| 507 | */ |
| 508 | if (bpp != NULL((void *)0)) { |
| 509 | error = bread(vp, lbn, fs->fs_bsize, bpp); |
| 510 | if (error) { |
| 511 | brelse(*bpp); |
| 512 | return (error); |
| 513 | } |
| 514 | } |
| 515 | |
| 516 | return (0); |
| 517 | } |
| 518 | |
| 519 | if (nb != 0) { |
| 520 | /* |
| 521 | * Consider the need to allocate a fragment. |
| 522 | */ |
| 523 | osize = fragroundup(fs, blkoff(fs, ip->i_ffs2_size))(((((ip->dinode_u.ffs2_din->di_size) & (fs)->fs_qbmask )) + (fs)->fs_qfmask) & (fs)->fs_fmask); |
| 524 | nsize = fragroundup(fs, size)(((size) + (fs)->fs_qfmask) & (fs)->fs_fmask); |
| 525 | |
| 526 | if (nsize <= osize) { |
| 527 | /* |
| 528 | * The existing block is already at least as |
| 529 | * big as we want. Just read it, if requested. |
| 530 | */ |
| 531 | if (bpp != NULL((void *)0)) { |
| 532 | error = bread(vp, lbn, fs->fs_bsize, |
| 533 | bpp); |
| 534 | if (error) { |
| 535 | brelse(*bpp); |
| 536 | return (error); |
| 537 | } |
| 538 | buf_adjcnt((*bpp), osize); |
| 539 | } |
| 540 | |
| 541 | return (0); |
| 542 | } else { |
| 543 | /* |
| 544 | * The existing block is smaller than we want, |
| 545 | * grow it. |
| 546 | */ |
| 547 | error = ffs_realloccg(ip, lbn, |
| 548 | ffs2_blkpref(ip, lbn, (int) lbn, |
| 549 | &ip->i_ffs2_dbdinode_u.ffs2_din->di_db[0]), osize, nsize, cred, |
| 550 | bpp, &newb); |
| 551 | if (error) |
| 552 | return (error); |
| 553 | |
| 554 | if (DOINGSOFTDEP(vp)((vp)->v_mount->mnt_flag & 0x04000000)) |
| 555 | softdep_setup_allocdirect(ip, lbn, |
| 556 | newb, nb, nsize, osize, |
| 557 | bpp ? *bpp : NULL((void *)0)); |
| 558 | } |
| 559 | } else { |
| 560 | /* |
| 561 | * The block was not previously allocated, allocate a |
| 562 | * new block or fragment. |
| 563 | */ |
| 564 | if (ip->i_ffs2_sizedinode_u.ffs2_din->di_size < lblktosize(fs, lbn + 1)((off_t)(lbn + 1) << (fs)->fs_bshift)) |
| 565 | nsize = fragroundup(fs, size)(((size) + (fs)->fs_qfmask) & (fs)->fs_fmask); |
| 566 | else |
| 567 | nsize = fs->fs_bsize; |
| 568 | |
| 569 | error = ffs_alloc(ip, lbn, ffs2_blkpref(ip, lbn, |
| 570 | (int) lbn, &ip->i_ffs2_dbdinode_u.ffs2_din->di_db[0]), nsize, cred, &newb); |
| 571 | if (error) |
| 572 | return (error); |
| 573 | |
| 574 | if (bpp != NULL((void *)0)) { |
| 575 | bp = getblk(vp, lbn, fs->fs_bsize, 0, INFSLP0xffffffffffffffffULL); |
| 576 | if (nsize < fs->fs_bsize) |
| 577 | bp->b_bcount = nsize; |
| 578 | bp->b_blkno = fsbtodb(fs, newb)((newb) << (fs)->fs_fsbtodb); |
| 579 | if (flags & B_CLRBUF0x01) |
| 580 | clrbuf(bp){ __builtin_bzero(((bp)->b_data), ((bp)->b_bcount)); (bp )->b_resid = 0; }; |
| 581 | *bpp = bp; |
| 582 | } |
| 583 | |
| 584 | if (DOINGSOFTDEP(vp)((vp)->v_mount->mnt_flag & 0x04000000)) |
| 585 | softdep_setup_allocdirect(ip, lbn, newb, 0, |
| 586 | nsize, 0, bpp ? *bpp : NULL((void *)0)); |
| 587 | } |
| 588 | |
| 589 | ip->i_ffs2_dbdinode_u.ffs2_din->di_db[lbn] = newb; |
| 590 | ip->i_flag |= IN_CHANGE0x0002 | IN_UPDATE0x0004; |
| 591 | |
| 592 | return (0); |
| 593 | } |
| 594 | |
| 595 | /* |
| 596 | * Determine the number of levels of indirection. |
| 597 | */ |
| 598 | pref = 0; |
| 599 | error = ufs_getlbns(vp, lbn, indirs, &num); |
| 600 | if (error) |
| 601 | return (error); |
| 602 | |
| 603 | #ifdef DIAGNOSTIC1 |
| 604 | if (num < 1) |
| 605 | panic("ffs2_balloc: ufs_bmaparray returned indirect block"); |
| 606 | #endif |
| 607 | |
| 608 | /* |
| 609 | * Fetch the first indirect block allocating it necessary. |
| 610 | */ |
| 611 | --num; |
| 612 | nb = ip->i_ffs2_ibdinode_u.ffs2_din->di_ib[indirs[0].in_off]; |
| 613 | allocib = NULL((void *)0); |
| 614 | allocblk = allociblk; |
| 615 | |
| 616 | if (nb == 0) { |
| 617 | pref = ffs2_blkpref(ip, lbn, -indirs[0].in_off - 1, NULL((void *)0)); |
| 618 | error = ffs_alloc(ip, lbn, pref, (int) fs->fs_bsize, cred, |
| 619 | &newb); |
| 620 | if (error) |
| 621 | goto fail; |
| 622 | |
| 623 | nb = newb; |
| 624 | *allocblk++ = nb; |
| 625 | bp = getblk(vp, indirs[1].in_lbn, fs->fs_bsize, 0, INFSLP0xffffffffffffffffULL); |
| 626 | bp->b_blkno = fsbtodb(fs, nb)((nb) << (fs)->fs_fsbtodb); |
| 627 | clrbuf(bp){ __builtin_bzero(((bp)->b_data), ((bp)->b_bcount)); (bp )->b_resid = 0; }; |
| 628 | |
| 629 | if (DOINGSOFTDEP(vp)((vp)->v_mount->mnt_flag & 0x04000000)) { |
| 630 | softdep_setup_allocdirect(ip, NDADDR12 + indirs[0].in_off, |
| 631 | newb, 0, fs->fs_bsize, 0, bp); |
| 632 | bdwrite(bp); |
| 633 | } else { |
| 634 | /* |
| 635 | * Write synchronously so that indirect blocks never |
| 636 | * point at garbage. |
| 637 | */ |
| 638 | error = bwrite(bp); |
| 639 | if (error) |
| 640 | goto fail; |
| 641 | } |
| 642 | |
| 643 | unwindidx = 0; |
| 644 | allocib = &ip->i_ffs2_ibdinode_u.ffs2_din->di_ib[indirs[0].in_off]; |
| 645 | *allocib = nb; |
| 646 | ip->i_flag |= IN_CHANGE0x0002 | IN_UPDATE0x0004; |
| 647 | } |
| 648 | |
| 649 | /* |
| 650 | * Fetch through the indirect blocks, allocating as necessary. |
| 651 | */ |
| 652 | for (i = 1;;) { |
| 653 | error = bread(vp, indirs[i].in_lbn, (int)fs->fs_bsize, &bp); |
| 654 | if (error) { |
| 655 | brelse(bp); |
| 656 | goto fail; |
| 657 | } |
| 658 | |
| 659 | bap = (int64_t *) bp->b_data; |
| 660 | nb = bap[indirs[i].in_off]; |
| 661 | |
| 662 | if (i == num) |
| 663 | break; |
| 664 | |
| 665 | i++; |
| 666 | |
| 667 | if (nb != 0) { |
| 668 | brelse(bp); |
| 669 | continue; |
| 670 | } |
| 671 | |
| 672 | if (pref == 0) |
| 673 | pref = ffs2_blkpref(ip, lbn, i - num - 1, NULL((void *)0)); |
| 674 | |
| 675 | error = ffs_alloc(ip, lbn, pref, (int) fs->fs_bsize, cred, |
| 676 | &newb); |
| 677 | if (error) { |
| 678 | brelse(bp); |
| 679 | goto fail; |
| 680 | } |
| 681 | |
| 682 | nb = newb; |
| 683 | *allocblk++ = nb; |
| 684 | nbp = getblk(vp, indirs[i].in_lbn, fs->fs_bsize, 0, INFSLP0xffffffffffffffffULL); |
| 685 | nbp->b_blkno = fsbtodb(fs, nb)((nb) << (fs)->fs_fsbtodb); |
| 686 | clrbuf(nbp){ __builtin_bzero(((nbp)->b_data), ((nbp)->b_bcount)); ( nbp)->b_resid = 0; }; |
| 687 | |
| 688 | if (DOINGSOFTDEP(vp)((vp)->v_mount->mnt_flag & 0x04000000)) { |
| 689 | softdep_setup_allocindir_meta(nbp, ip, bp, |
| 690 | indirs[i - 1].in_off, nb); |
| 691 | bdwrite(nbp); |
| 692 | } else { |
| 693 | /* |
| 694 | * Write synchronously so that indirect blocks never |
| 695 | * point at garbage. |
| 696 | */ |
| 697 | error = bwrite(nbp); |
| 698 | if (error) { |
| 699 | brelse(bp); |
| 700 | goto fail; |
| 701 | } |
| 702 | } |
| 703 | |
| 704 | if (unwindidx < 0) |
| 705 | unwindidx = i - 1; |
| 706 | |
| 707 | bap[indirs[i - 1].in_off] = nb; |
| 708 | |
| 709 | /* |
| 710 | * If required, write synchronously, otherwise use delayed |
| 711 | * write. |
| 712 | */ |
| 713 | if (flags & B_SYNC0x02) |
| 714 | bwrite(bp); |
| 715 | else |
| 716 | bdwrite(bp); |
| 717 | } |
| 718 | |
| 719 | /* |
| 720 | * Get the data block, allocating if necessary. |
| 721 | */ |
| 722 | if (nb == 0) { |
| 723 | pref = ffs2_blkpref(ip, lbn, indirs[num].in_off, &bap[0]); |
| 724 | |
| 725 | error = ffs_alloc(ip, lbn, pref, (int)fs->fs_bsize, cred, |
| 726 | &newb); |
| 727 | if (error) { |
| 728 | brelse(bp); |
| 729 | goto fail; |
| 730 | } |
| 731 | |
| 732 | nb = newb; |
| 733 | *allocblk++ = nb; |
| 734 | |
| 735 | if (bpp != NULL((void *)0)) { |
| 736 | nbp = getblk(vp, lbn, fs->fs_bsize, 0, INFSLP0xffffffffffffffffULL); |
| 737 | nbp->b_blkno = fsbtodb(fs, nb)((nb) << (fs)->fs_fsbtodb); |
| 738 | if (flags & B_CLRBUF0x01) |
| 739 | clrbuf(nbp){ __builtin_bzero(((nbp)->b_data), ((nbp)->b_bcount)); ( nbp)->b_resid = 0; }; |
| 740 | *bpp = nbp; |
| 741 | } |
| 742 | |
| 743 | if (DOINGSOFTDEP(vp)((vp)->v_mount->mnt_flag & 0x04000000)) |
| 744 | softdep_setup_allocindir_page(ip, lbn, bp, |
| 745 | indirs[num].in_off, nb, 0, bpp ? *bpp : NULL((void *)0)); |
| 746 | |
| 747 | bap[indirs[num].in_off] = nb; |
| 748 | |
| 749 | if (allocib == NULL((void *)0) && unwindidx < 0) |
| 750 | unwindidx = i - 1; |
Value stored to 'unwindidx' is never read | |
| 751 | |
| 752 | /* |
| 753 | * If required, write synchronously, otherwise use delayed |
| 754 | * write. |
| 755 | */ |
| 756 | if (flags & B_SYNC0x02) |
| 757 | bwrite(bp); |
| 758 | else |
| 759 | bdwrite(bp); |
| 760 | |
| 761 | return (0); |
| 762 | } |
| 763 | |
| 764 | brelse(bp); |
| 765 | |
| 766 | if (bpp != NULL((void *)0)) { |
| 767 | if (flags & B_CLRBUF0x01) { |
| 768 | error = bread(vp, lbn, (int)fs->fs_bsize, &nbp); |
| 769 | if (error) { |
| 770 | brelse(nbp); |
| 771 | goto fail; |
| 772 | } |
| 773 | } else { |
| 774 | nbp = getblk(vp, lbn, fs->fs_bsize, 0, INFSLP0xffffffffffffffffULL); |
| 775 | nbp->b_blkno = fsbtodb(fs, nb)((nb) << (fs)->fs_fsbtodb); |
| 776 | clrbuf(nbp){ __builtin_bzero(((nbp)->b_data), ((nbp)->b_bcount)); ( nbp)->b_resid = 0; }; |
| 777 | } |
| 778 | |
| 779 | *bpp = nbp; |
| 780 | } |
| 781 | |
| 782 | return (0); |
| 783 | |
| 784 | fail: |
| 785 | /* |
| 786 | * If we have failed to allocate any blocks, simply return the error. |
| 787 | * This is the usual case and avoids the need to fsync the file. |
| 788 | */ |
| 789 | if (allocblk == allociblk && allocib == NULL((void *)0) && unwindidx == -1) |
| 790 | return (error); |
| 791 | /* |
| 792 | * If we have failed part way through block allocation, we have to |
| 793 | * deallocate any indirect blocks that we have allocated. We have to |
| 794 | * fsync the file before we start to get rid of all of its |
| 795 | * dependencies so that we do not leave them dangling. We have to sync |
| 796 | * it at the end so that the softdep code does not find any untracked |
| 797 | * changes. Although this is really slow, running out of disk space is |
| 798 | * not expected to be a common occurrence. The error return from fsync |
| 799 | * is ignored as we already have an error to return to the user. |
| 800 | */ |
| 801 | VOP_FSYNC(vp, p->p_ucred, MNT_WAIT1, p); |
| 802 | if (unwindidx >= 0) { |
| 803 | /* |
| 804 | * First write out any buffers we've created to resolve their |
| 805 | * softdeps. This must be done in reverse order of creation so |
| 806 | * that we resolve the dependencies in one pass. |
| 807 | * Write the cylinder group buffers for these buffers too. |
| 808 | */ |
| 809 | for (i = num; i >= unwindidx; i--) { |
| 810 | if (i == 0) |
| 811 | break; |
| 812 | |
| 813 | bp = getblk(vp, indirs[i].in_lbn, (int) fs->fs_bsize, |
| 814 | 0, INFSLP0xffffffffffffffffULL); |
| 815 | if (bp->b_flags & B_DELWRI0x00000080) { |
| 816 | nb = fsbtodb(fs, cgtod(fs, dtog(fs,((((((daddr_t)(fs)->fs_fpg * (((((bp->b_blkno) >> (fs)->fs_fsbtodb)) / (fs)->fs_fpg))) + (fs)->fs_cgoffset * ((((((bp->b_blkno) >> (fs)->fs_fsbtodb)) / (fs )->fs_fpg)) & ~((fs)->fs_cgmask))) + (fs)->fs_cblkno )) << (fs)->fs_fsbtodb) |
| 817 | dbtofsb(fs, bp->b_blkno))))((((((daddr_t)(fs)->fs_fpg * (((((bp->b_blkno) >> (fs)->fs_fsbtodb)) / (fs)->fs_fpg))) + (fs)->fs_cgoffset * ((((((bp->b_blkno) >> (fs)->fs_fsbtodb)) / (fs )->fs_fpg)) & ~((fs)->fs_cgmask))) + (fs)->fs_cblkno )) << (fs)->fs_fsbtodb); |
| 818 | bwrite(bp); |
| 819 | bp = getblk(ip->i_devvpi_ump->um_devvp, nb, |
| 820 | (int) fs->fs_cgsize, 0, INFSLP0xffffffffffffffffULL); |
| 821 | if (bp->b_flags & B_DELWRI0x00000080) |
| 822 | bwrite(bp); |
| 823 | else { |
| 824 | bp->b_flags |= B_INVAL0x00000800; |
| 825 | brelse(bp); |
| 826 | } |
| 827 | } else { |
| 828 | bp->b_flags |= B_INVAL0x00000800; |
| 829 | brelse(bp); |
| 830 | } |
| 831 | } |
| 832 | |
| 833 | if (DOINGSOFTDEP(vp)((vp)->v_mount->mnt_flag & 0x04000000) && unwindidx == 0) { |
| 834 | ip->i_flag |= IN_CHANGE0x0002 | IN_UPDATE0x0004; |
| 835 | ffs_update(ip, 1); |
| 836 | } |
| 837 | |
| 838 | /* |
| 839 | * Now that any dependencies that we created have been |
| 840 | * resolved, we can undo the partial allocation. |
| 841 | */ |
| 842 | if (unwindidx == 0) { |
| 843 | *allocib = 0; |
| 844 | ip->i_flag |= IN_CHANGE0x0002 | IN_UPDATE0x0004; |
| 845 | if (DOINGSOFTDEP(vp)((vp)->v_mount->mnt_flag & 0x04000000)) |
| 846 | ffs_update(ip, 1); |
| 847 | } else { |
| 848 | r = bread(vp, indirs[unwindidx].in_lbn, |
| 849 | (int)fs->fs_bsize, &bp); |
| 850 | if (r) |
| 851 | panic("ffs2_balloc: unwind failed"); |
| 852 | |
| 853 | bap = (int64_t *) bp->b_data; |
| 854 | bap[indirs[unwindidx].in_off] = 0; |
| 855 | bwrite(bp); |
| 856 | } |
| 857 | |
| 858 | for (i = unwindidx + 1; i <= num; i++) { |
| 859 | bp = getblk(vp, indirs[i].in_lbn, (int)fs->fs_bsize, 0, |
| 860 | INFSLP0xffffffffffffffffULL); |
| 861 | bp->b_flags |= B_INVAL0x00000800; |
| 862 | brelse(bp); |
| 863 | } |
| 864 | } |
| 865 | |
| 866 | for (deallocated = 0, blkp = allociblk; blkp < allocblk; blkp++) { |
| 867 | ffs_blkfree(ip, *blkp, fs->fs_bsize); |
| 868 | deallocated += fs->fs_bsize; |
| 869 | } |
| 870 | |
| 871 | if (deallocated) { |
| 872 | /* |
| 873 | * Restore user's disk quota because allocation failed. |
| 874 | */ |
| 875 | (void) ufs_quota_free_blocks(ip, btodb(deallocated), cred)ufs_quota_free_blocks2(ip, ((deallocated) >> 9), cred, 0 ); |
| 876 | |
| 877 | ip->i_ffs2_blocksdinode_u.ffs2_din->di_blocks -= btodb(deallocated)((deallocated) >> 9); |
| 878 | ip->i_flag |= IN_CHANGE0x0002 | IN_UPDATE0x0004; |
| 879 | } |
| 880 | VOP_FSYNC(vp, p->p_ucred, MNT_WAIT1, p); |
| 881 | return (error); |
| 882 | } |
| 883 | #endif /* FFS2 */ |
| 884 | |
| 885 | /* |
| 886 | * Balloc defines the structure of file system storage by allocating the |
| 887 | * physical blocks given the inode and the logical block number in a file. |
| 888 | */ |
| 889 | int |
| 890 | ffs_balloc(struct inode *ip, off_t off, int size, struct ucred *cred, |
| 891 | int flags, struct buf **bpp) |
| 892 | { |
| 893 | #ifdef FFS21 |
| 894 | if (ip->i_fsinode_u.fs->fs_magic == FS_UFS2_MAGIC0x19540119) |
| 895 | return (ffs2_balloc(ip, off, size, cred, flags, bpp)); |
| 896 | else |
| 897 | #endif |
| 898 | return (ffs1_balloc(ip, off, size, cred, flags, bpp)); |
| 899 | } |