chfs_vnode.c revision 1.5.2.3
1 1.5.2.3 yamt /* $NetBSD: chfs_vnode.c,v 1.5.2.3 2012/10/30 17:22:58 yamt Exp $ */ 2 1.5.2.2 yamt 3 1.5.2.2 yamt /*- 4 1.5.2.2 yamt * Copyright (c) 2010 Department of Software Engineering, 5 1.5.2.2 yamt * University of Szeged, Hungary 6 1.5.2.2 yamt * Copyright (C) 2010 Tamas Toth <ttoth (at) inf.u-szeged.hu> 7 1.5.2.2 yamt * Copyright (C) 2010 Adam Hoka <ahoka (at) NetBSD.org> 8 1.5.2.2 yamt * All rights reserved. 9 1.5.2.2 yamt * 10 1.5.2.2 yamt * This code is derived from software contributed to The NetBSD Foundation 11 1.5.2.2 yamt * by the Department of Software Engineering, University of Szeged, Hungary 12 1.5.2.2 yamt * 13 1.5.2.2 yamt * Redistribution and use in source and binary forms, with or without 14 1.5.2.2 yamt * modification, are permitted provided that the following conditions 15 1.5.2.2 yamt * are met: 16 1.5.2.2 yamt * 1. Redistributions of source code must retain the above copyright 17 1.5.2.2 yamt * notice, this list of conditions and the following disclaimer. 18 1.5.2.2 yamt * 2. Redistributions in binary form must reproduce the above copyright 19 1.5.2.2 yamt * notice, this list of conditions and the following disclaimer in the 20 1.5.2.2 yamt * documentation and/or other materials provided with the distribution. 21 1.5.2.2 yamt * 22 1.5.2.2 yamt * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 23 1.5.2.2 yamt * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 24 1.5.2.2 yamt * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 25 1.5.2.2 yamt * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 26 1.5.2.2 yamt * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 27 1.5.2.2 yamt * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 28 1.5.2.2 yamt * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 29 1.5.2.2 yamt * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 30 1.5.2.2 yamt * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 1.5.2.2 yamt * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 1.5.2.2 yamt * SUCH DAMAGE. 33 1.5.2.2 yamt */ 34 1.5.2.2 yamt 35 1.5.2.2 yamt #include "chfs.h" 36 1.5.2.2 yamt #include "chfs_inode.h" 37 1.5.2.2 yamt #include <sys/malloc.h> 38 1.5.2.2 yamt #include <sys/kauth.h> 39 1.5.2.2 yamt #include <sys/namei.h> 40 1.5.2.2 yamt #include <sys/uio.h> 41 1.5.2.2 yamt #include <sys/buf.h> 42 1.5.2.2 yamt 43 1.5.2.2 yamt #include <miscfs/genfs/genfs.h> 44 1.5.2.2 yamt 45 1.5.2.3 yamt /* chfs_vnode_lookup - lookup for a vnode */ 46 1.5.2.2 yamt struct vnode * 47 1.5.2.2 yamt chfs_vnode_lookup(struct chfs_mount *chmp, ino_t vno) 48 1.5.2.2 yamt { 49 1.5.2.2 yamt struct vnode *vp; 50 1.5.2.2 yamt struct chfs_inode *ip; 51 1.5.2.2 yamt 52 1.5.2.2 yamt TAILQ_FOREACH(vp, &chmp->chm_fsmp->mnt_vnodelist, v_mntvnodes) { 53 1.5.2.2 yamt ip = VTOI(vp); 54 1.5.2.2 yamt if (ip && ip->ino == vno) 55 1.5.2.2 yamt return vp; 56 1.5.2.2 yamt } 57 1.5.2.2 yamt return NULL; 58 1.5.2.2 yamt } 59 1.5.2.2 yamt 60 1.5.2.3 yamt /* chfs_readvnode - reads a vnode from the flash and setups its inode */ 61 1.5.2.2 yamt int 62 1.5.2.3 yamt chfs_readvnode(struct mount *mp, ino_t ino, struct vnode **vpp) 63 1.5.2.2 yamt { 64 1.5.2.2 yamt struct ufsmount* ump = VFSTOUFS(mp); 65 1.5.2.2 yamt struct chfs_mount *chmp = ump->um_chfs; 66 1.5.2.2 yamt struct chfs_vnode_cache *chvc; 67 1.5.2.2 yamt struct chfs_flash_vnode *chfvn; 68 1.5.2.2 yamt struct chfs_inode *ip; 69 1.5.2.2 yamt int err; 70 1.5.2.2 yamt char* buf; 71 1.5.2.2 yamt size_t retlen, len; 72 1.5.2.2 yamt struct vnode* vp = NULL; 73 1.5.2.2 yamt dbg("readvnode | ino: %llu\n", (unsigned long long)ino); 74 1.5.2.2 yamt 75 1.5.2.2 yamt len = sizeof(struct chfs_flash_vnode); 76 1.5.2.2 yamt 77 1.5.2.2 yamt KASSERT(vpp != NULL); 78 1.5.2.2 yamt 79 1.5.2.2 yamt if (vpp != NULL) { 80 1.5.2.2 yamt vp = *vpp; 81 1.5.2.2 yamt } 82 1.5.2.2 yamt 83 1.5.2.2 yamt ip = VTOI(vp); 84 1.5.2.2 yamt chvc = ip->chvc; 85 1.5.2.2 yamt 86 1.5.2.3 yamt /* root node is in-memory only */ 87 1.5.2.2 yamt if (chvc && ino != CHFS_ROOTINO) { 88 1.5.2.3 yamt dbg("offset: %" PRIu32 ", lnr: %d\n", 89 1.5.2.2 yamt CHFS_GET_OFS(chvc->v->nref_offset), chvc->v->nref_lnr); 90 1.5.2.2 yamt 91 1.5.2.2 yamt KASSERT((void *)chvc != (void *)chvc->v); 92 1.5.2.2 yamt 93 1.5.2.3 yamt /* reading */ 94 1.5.2.2 yamt buf = kmem_alloc(len, KM_SLEEP); 95 1.5.2.2 yamt err = chfs_read_leb(chmp, chvc->v->nref_lnr, buf, 96 1.5.2.2 yamt CHFS_GET_OFS(chvc->v->nref_offset), len, &retlen); 97 1.5.2.2 yamt if (err) 98 1.5.2.2 yamt return err; 99 1.5.2.2 yamt if (retlen != len) { 100 1.5.2.2 yamt chfs_err("Error reading vnode: read: %zu insted of: %zu\n", 101 1.5.2.2 yamt len, retlen); 102 1.5.2.2 yamt return EIO; 103 1.5.2.2 yamt } 104 1.5.2.2 yamt chfvn = (struct chfs_flash_vnode*)buf; 105 1.5.2.3 yamt 106 1.5.2.3 yamt /* setup inode fields */ 107 1.5.2.2 yamt chfs_set_vnode_size(vp, chfvn->dn_size); 108 1.5.2.2 yamt ip->mode = chfvn->mode; 109 1.5.2.2 yamt ip->ch_type = IFTOCHT(ip->mode); 110 1.5.2.2 yamt vp->v_type = CHTTOVT(ip->ch_type); 111 1.5.2.2 yamt ip->version = chfvn->version; 112 1.5.2.2 yamt ip->uid = chfvn->uid; 113 1.5.2.2 yamt ip->gid = chfvn->gid; 114 1.5.2.2 yamt ip->atime = chfvn->atime; 115 1.5.2.2 yamt ip->mtime = chfvn->mtime; 116 1.5.2.2 yamt ip->ctime = chfvn->ctime; 117 1.5.2.3 yamt 118 1.5.2.2 yamt kmem_free(buf, len); 119 1.5.2.2 yamt } 120 1.5.2.2 yamt 121 1.5.2.2 yamt 122 1.5.2.2 yamt *vpp = vp; 123 1.5.2.2 yamt return 0; 124 1.5.2.2 yamt } 125 1.5.2.2 yamt 126 1.5.2.3 yamt /* 127 1.5.2.3 yamt * chfs_readddirent - 128 1.5.2.3 yamt * reads a directory entry from flash and adds it to its inode 129 1.5.2.3 yamt */ 130 1.5.2.2 yamt int 131 1.5.2.2 yamt chfs_readdirent(struct mount *mp, struct chfs_node_ref *chnr, struct chfs_inode *pdir) 132 1.5.2.2 yamt { 133 1.5.2.2 yamt struct ufsmount *ump = VFSTOUFS(mp); 134 1.5.2.2 yamt struct chfs_mount *chmp = ump->um_chfs; 135 1.5.2.2 yamt struct chfs_flash_dirent_node chfdn; 136 1.5.2.3 yamt struct chfs_dirent *fd; 137 1.5.2.2 yamt size_t len = sizeof(struct chfs_flash_dirent_node); 138 1.5.2.2 yamt size_t retlen; 139 1.5.2.2 yamt int err = 0; 140 1.5.2.2 yamt 141 1.5.2.3 yamt /* read flash_dirent_node */ 142 1.5.2.2 yamt err = chfs_read_leb(chmp, chnr->nref_lnr, (char *)&chfdn, 143 1.5.2.2 yamt CHFS_GET_OFS(chnr->nref_offset), len, &retlen); 144 1.5.2.2 yamt if (err) { 145 1.5.2.2 yamt return err; 146 1.5.2.2 yamt } 147 1.5.2.2 yamt if (retlen != len) { 148 1.5.2.2 yamt chfs_err("Error reading vnode: read: %zu insted of: %zu\n", 149 1.5.2.2 yamt retlen, len); 150 1.5.2.2 yamt return EIO; 151 1.5.2.2 yamt } 152 1.5.2.2 yamt 153 1.5.2.3 yamt /* set fields of dirent */ 154 1.5.2.2 yamt fd = chfs_alloc_dirent(chfdn.nsize + 1); 155 1.5.2.2 yamt fd->version = chfdn.version; 156 1.5.2.2 yamt fd->vno = chfdn.vno; 157 1.5.2.2 yamt fd->type = chfdn.dtype; 158 1.5.2.2 yamt fd->nsize = chfdn.nsize; 159 1.5.2.2 yamt 160 1.5.2.3 yamt /* read the name of the dirent */ 161 1.5.2.2 yamt err = chfs_read_leb(chmp, chnr->nref_lnr, fd->name, 162 1.5.2.2 yamt CHFS_GET_OFS(chnr->nref_offset) + len, chfdn.nsize, &retlen); 163 1.5.2.2 yamt if (err) { 164 1.5.2.2 yamt return err; 165 1.5.2.2 yamt } 166 1.5.2.2 yamt 167 1.5.2.2 yamt if (retlen != chfdn.nsize) { 168 1.5.2.2 yamt chfs_err("Error reading vnode: read: %zu insted of: %zu\n", 169 1.5.2.2 yamt len, retlen); 170 1.5.2.2 yamt return EIO; 171 1.5.2.2 yamt } 172 1.5.2.2 yamt 173 1.5.2.2 yamt fd->name[fd->nsize] = 0; 174 1.5.2.2 yamt fd->nref = chnr; 175 1.5.2.2 yamt 176 1.5.2.3 yamt /* add to inode */ 177 1.5.2.2 yamt chfs_add_fd_to_inode(chmp, pdir, fd); 178 1.5.2.2 yamt return 0; 179 1.5.2.2 yamt } 180 1.5.2.2 yamt 181 1.5.2.3 yamt /* chfs_makeinode - makes a new file and initializes its structures */ 182 1.5.2.2 yamt int 183 1.5.2.2 yamt chfs_makeinode(int mode, struct vnode *dvp, struct vnode **vpp, 184 1.5.2.2 yamt struct componentname *cnp, enum vtype type) 185 1.5.2.2 yamt { 186 1.5.2.2 yamt struct chfs_inode *ip, *pdir; 187 1.5.2.2 yamt struct vnode *vp; 188 1.5.2.2 yamt struct ufsmount* ump = VFSTOUFS(dvp->v_mount); 189 1.5.2.2 yamt struct chfs_mount* chmp = ump->um_chfs; 190 1.5.2.2 yamt struct chfs_vnode_cache* chvc; 191 1.5.2.2 yamt int error; 192 1.5.2.2 yamt ino_t vno; 193 1.5.2.3 yamt struct chfs_dirent *nfd; 194 1.5.2.2 yamt 195 1.5.2.2 yamt dbg("makeinode\n"); 196 1.5.2.2 yamt pdir = VTOI(dvp); 197 1.5.2.2 yamt 198 1.5.2.2 yamt *vpp = NULL; 199 1.5.2.2 yamt 200 1.5.2.3 yamt /* number of vnode will be the new maximum */ 201 1.5.2.2 yamt vno = ++(chmp->chm_max_vno); 202 1.5.2.2 yamt 203 1.5.2.2 yamt error = VFS_VGET(dvp->v_mount, vno, &vp); 204 1.5.2.2 yamt if (error) 205 1.5.2.2 yamt return (error); 206 1.5.2.2 yamt 207 1.5.2.3 yamt /* setup vnode cache */ 208 1.5.2.2 yamt mutex_enter(&chmp->chm_lock_vnocache); 209 1.5.2.2 yamt chvc = chfs_vnode_cache_get(chmp, vno); 210 1.5.2.2 yamt 211 1.5.2.2 yamt chvc->pvno = pdir->ino; 212 1.5.2.2 yamt chvc->vno_version = kmem_alloc(sizeof(uint64_t), KM_SLEEP); 213 1.5.2.2 yamt *(chvc->vno_version) = 1; 214 1.5.2.2 yamt if (type != VDIR) 215 1.5.2.2 yamt chvc->nlink = 1; 216 1.5.2.2 yamt else 217 1.5.2.2 yamt chvc->nlink = 2; 218 1.5.2.2 yamt chvc->state = VNO_STATE_CHECKEDABSENT; 219 1.5.2.3 yamt mutex_exit(&chmp->chm_lock_vnocache); 220 1.5.2.2 yamt 221 1.5.2.3 yamt /* setup inode */ 222 1.5.2.2 yamt ip = VTOI(vp); 223 1.5.2.2 yamt ip->ino = vno; 224 1.5.2.2 yamt 225 1.5.2.2 yamt if (type == VDIR) 226 1.5.2.2 yamt chfs_set_vnode_size(vp, 512); 227 1.5.2.2 yamt else 228 1.5.2.2 yamt chfs_set_vnode_size(vp, 0); 229 1.5.2.2 yamt 230 1.5.2.2 yamt ip->uid = kauth_cred_geteuid(cnp->cn_cred); 231 1.5.2.2 yamt ip->gid = kauth_cred_getegid(cnp->cn_cred); 232 1.5.2.2 yamt ip->version = 1; 233 1.5.2.2 yamt ip->iflag |= (IN_ACCESS | IN_CHANGE | IN_UPDATE); 234 1.5.2.2 yamt 235 1.5.2.2 yamt ip->chvc = chvc; 236 1.5.2.2 yamt ip->target = NULL; 237 1.5.2.2 yamt 238 1.5.2.2 yamt ip->mode = mode; 239 1.5.2.2 yamt vp->v_type = type; /* Rest init'd in getnewvnode(). */ 240 1.5.2.2 yamt ip->ch_type = VTTOCHT(vp->v_type); 241 1.5.2.2 yamt 242 1.5.2.3 yamt /* authorize setting SGID if needed */ 243 1.5.2.2 yamt if (ip->mode & ISGID) { 244 1.5.2.2 yamt error = kauth_authorize_vnode(cnp->cn_cred, KAUTH_VNODE_WRITE_SECURITY, 245 1.5.2.2 yamt vp, NULL, genfs_can_chmod(vp->v_type, cnp->cn_cred, ip->uid, 246 1.5.2.2 yamt ip->gid, mode)); 247 1.5.2.2 yamt if (error) 248 1.5.2.2 yamt ip->mode &= ~ISGID; 249 1.5.2.2 yamt } 250 1.5.2.2 yamt 251 1.5.2.3 yamt /* write vnode information to the flash */ 252 1.5.2.2 yamt chfs_update(vp, NULL, NULL, UPDATE_WAIT); 253 1.5.2.2 yamt 254 1.5.2.2 yamt mutex_enter(&chmp->chm_lock_mountfields); 255 1.5.2.2 yamt 256 1.5.2.2 yamt error = chfs_write_flash_vnode(chmp, ip, ALLOC_NORMAL); 257 1.5.2.2 yamt if (error) { 258 1.5.2.2 yamt mutex_exit(&chmp->chm_lock_mountfields); 259 1.5.2.2 yamt vput(vp); 260 1.5.2.2 yamt vput(dvp); 261 1.5.2.2 yamt return error; 262 1.5.2.2 yamt } 263 1.5.2.3 yamt 264 1.5.2.3 yamt /* update parent's vnode information and write it to the flash */ 265 1.5.2.2 yamt pdir->iflag |= (IN_ACCESS | IN_CHANGE | IN_MODIFY | IN_UPDATE); 266 1.5.2.2 yamt chfs_update(dvp, NULL, NULL, UPDATE_WAIT); 267 1.5.2.2 yamt 268 1.5.2.2 yamt error = chfs_write_flash_vnode(chmp, pdir, ALLOC_NORMAL); 269 1.5.2.2 yamt if (error) { 270 1.5.2.2 yamt mutex_exit(&chmp->chm_lock_mountfields); 271 1.5.2.2 yamt vput(vp); 272 1.5.2.2 yamt vput(dvp); 273 1.5.2.2 yamt return error; 274 1.5.2.2 yamt } 275 1.5.2.2 yamt vput(dvp); 276 1.5.2.2 yamt 277 1.5.2.3 yamt /* setup directory entry */ 278 1.5.2.2 yamt nfd = chfs_alloc_dirent(cnp->cn_namelen + 1); 279 1.5.2.2 yamt nfd->vno = ip->ino; 280 1.5.2.2 yamt nfd->version = (++pdir->chvc->highest_version); 281 1.5.2.2 yamt nfd->type = ip->ch_type; 282 1.5.2.2 yamt nfd->nsize = cnp->cn_namelen; 283 1.5.2.2 yamt memcpy(&(nfd->name), cnp->cn_nameptr, cnp->cn_namelen); 284 1.5.2.2 yamt nfd->name[nfd->nsize] = 0; 285 1.5.2.2 yamt nfd->nhash = hash32_buf(nfd->name, cnp->cn_namelen, HASH32_BUF_INIT); 286 1.5.2.2 yamt 287 1.5.2.3 yamt /* write out */ 288 1.5.2.2 yamt error = chfs_write_flash_dirent(chmp, pdir, ip, nfd, ip->ino, ALLOC_NORMAL); 289 1.5.2.2 yamt if (error) { 290 1.5.2.2 yamt mutex_exit(&chmp->chm_lock_mountfields); 291 1.5.2.2 yamt vput(vp); 292 1.5.2.2 yamt return error; 293 1.5.2.2 yamt } 294 1.5.2.2 yamt 295 1.5.2.2 yamt //TODO set parent's dir times 296 1.5.2.2 yamt 297 1.5.2.3 yamt /* add dirent to parent */ 298 1.5.2.2 yamt chfs_add_fd_to_inode(chmp, pdir, nfd); 299 1.5.2.3 yamt 300 1.5.2.2 yamt pdir->chvc->nlink++; 301 1.5.2.2 yamt 302 1.5.2.2 yamt mutex_exit(&chmp->chm_lock_mountfields); 303 1.5.2.2 yamt 304 1.5.2.2 yamt *vpp = vp; 305 1.5.2.2 yamt return (0); 306 1.5.2.2 yamt } 307 1.5.2.2 yamt 308 1.5.2.3 yamt /* chfs_set_vnode_size - updates size of vnode and also inode */ 309 1.5.2.2 yamt void 310 1.5.2.2 yamt chfs_set_vnode_size(struct vnode *vp, size_t size) 311 1.5.2.2 yamt { 312 1.5.2.2 yamt struct chfs_inode *ip; 313 1.5.2.2 yamt 314 1.5.2.2 yamt KASSERT(vp != NULL); 315 1.5.2.2 yamt 316 1.5.2.2 yamt ip = VTOI(vp); 317 1.5.2.2 yamt KASSERT(ip != NULL); 318 1.5.2.2 yamt 319 1.5.2.2 yamt ip->size = size; 320 1.5.2.2 yamt vp->v_size = vp->v_writesize = size; 321 1.5.2.2 yamt return; 322 1.5.2.2 yamt } 323 1.5.2.2 yamt 324 1.5.2.3 yamt /* 325 1.5.2.3 yamt * chfs_change_size_free - updates free size 326 1.5.2.3 yamt * "change" parameter is positive if we have to increase the size 327 1.5.2.3 yamt * and negative if we have to decrease it 328 1.5.2.3 yamt */ 329 1.5.2.2 yamt void 330 1.5.2.2 yamt chfs_change_size_free(struct chfs_mount *chmp, 331 1.5.2.2 yamt struct chfs_eraseblock *cheb, int change) 332 1.5.2.2 yamt { 333 1.5.2.2 yamt KASSERT(mutex_owned(&chmp->chm_lock_sizes)); 334 1.5.2.2 yamt KASSERT((int)(chmp->chm_free_size + change) >= 0); 335 1.5.2.2 yamt KASSERT((int)(cheb->free_size + change) >= 0); 336 1.5.2.2 yamt KASSERT((int)(cheb->free_size + change) <= chmp->chm_ebh->eb_size); 337 1.5.2.2 yamt chmp->chm_free_size += change; 338 1.5.2.2 yamt cheb->free_size += change; 339 1.5.2.2 yamt return; 340 1.5.2.2 yamt } 341 1.5.2.2 yamt 342 1.5.2.3 yamt /* 343 1.5.2.3 yamt * chfs_change_size_dirty - updates dirty size 344 1.5.2.3 yamt * "change" parameter is positive if we have to increase the size 345 1.5.2.3 yamt * and negative if we have to decrease it 346 1.5.2.3 yamt */ 347 1.5.2.2 yamt void 348 1.5.2.2 yamt chfs_change_size_dirty(struct chfs_mount *chmp, 349 1.5.2.2 yamt struct chfs_eraseblock *cheb, int change) 350 1.5.2.2 yamt { 351 1.5.2.2 yamt KASSERT(mutex_owned(&chmp->chm_lock_sizes)); 352 1.5.2.2 yamt KASSERT((int)(chmp->chm_dirty_size + change) >= 0); 353 1.5.2.2 yamt KASSERT((int)(cheb->dirty_size + change) >= 0); 354 1.5.2.2 yamt KASSERT((int)(cheb->dirty_size + change) <= chmp->chm_ebh->eb_size); 355 1.5.2.2 yamt chmp->chm_dirty_size += change; 356 1.5.2.2 yamt cheb->dirty_size += change; 357 1.5.2.2 yamt return; 358 1.5.2.2 yamt } 359 1.5.2.2 yamt 360 1.5.2.3 yamt /* 361 1.5.2.3 yamt * chfs_change_size_unchecked - updates unchecked size 362 1.5.2.3 yamt * "change" parameter is positive if we have to increase the size 363 1.5.2.3 yamt * and negative if we have to decrease it 364 1.5.2.3 yamt */ 365 1.5.2.2 yamt void 366 1.5.2.2 yamt chfs_change_size_unchecked(struct chfs_mount *chmp, 367 1.5.2.2 yamt struct chfs_eraseblock *cheb, int change) 368 1.5.2.2 yamt { 369 1.5.2.2 yamt KASSERT(mutex_owned(&chmp->chm_lock_sizes)); 370 1.5.2.2 yamt KASSERT((int)(chmp->chm_unchecked_size + change) >= 0); 371 1.5.2.2 yamt KASSERT((int)(cheb->unchecked_size + change) >= 0); 372 1.5.2.2 yamt KASSERT((int)(cheb->unchecked_size + change) <= chmp->chm_ebh->eb_size); 373 1.5.2.2 yamt chmp->chm_unchecked_size += change; 374 1.5.2.2 yamt cheb->unchecked_size += change; 375 1.5.2.2 yamt return; 376 1.5.2.2 yamt } 377 1.5.2.2 yamt 378 1.5.2.3 yamt /* 379 1.5.2.3 yamt * chfs_change_size_used - updates used size 380 1.5.2.3 yamt * "change" parameter is positive if we have to increase the size 381 1.5.2.3 yamt * and negative if we have to decrease it 382 1.5.2.3 yamt */ 383 1.5.2.2 yamt void 384 1.5.2.2 yamt chfs_change_size_used(struct chfs_mount *chmp, 385 1.5.2.2 yamt struct chfs_eraseblock *cheb, int change) 386 1.5.2.2 yamt { 387 1.5.2.2 yamt KASSERT(mutex_owned(&chmp->chm_lock_sizes)); 388 1.5.2.2 yamt KASSERT((int)(chmp->chm_used_size + change) >= 0); 389 1.5.2.2 yamt KASSERT((int)(cheb->used_size + change) >= 0); 390 1.5.2.2 yamt KASSERT((int)(cheb->used_size + change) <= chmp->chm_ebh->eb_size); 391 1.5.2.2 yamt chmp->chm_used_size += change; 392 1.5.2.2 yamt cheb->used_size += change; 393 1.5.2.2 yamt return; 394 1.5.2.2 yamt } 395 1.5.2.2 yamt 396 1.5.2.3 yamt /* 397 1.5.2.3 yamt * chfs_change_size_wasted - updates wasted size 398 1.5.2.3 yamt * "change" parameter is positive if we have to increase the size 399 1.5.2.3 yamt * and negative if we have to decrease it 400 1.5.2.3 yamt */ 401 1.5.2.2 yamt void 402 1.5.2.2 yamt chfs_change_size_wasted(struct chfs_mount *chmp, 403 1.5.2.2 yamt struct chfs_eraseblock *cheb, int change) 404 1.5.2.2 yamt { 405 1.5.2.2 yamt KASSERT(mutex_owned(&chmp->chm_lock_sizes)); 406 1.5.2.2 yamt KASSERT((int)(chmp->chm_wasted_size + change) >= 0); 407 1.5.2.2 yamt KASSERT((int)(cheb->wasted_size + change) >= 0); 408 1.5.2.2 yamt KASSERT((int)(cheb->wasted_size + change) <= chmp->chm_ebh->eb_size); 409 1.5.2.2 yamt chmp->chm_wasted_size += change; 410 1.5.2.2 yamt cheb->wasted_size += change; 411 1.5.2.2 yamt return; 412 1.5.2.2 yamt } 413 1.5.2.2 yamt 414
Indexes created Tue Oct 21 12:09:54 GMT 2025