chfs_vfsops.c revision 1.3.2.2
1 1.3.2.2 yamt /* $NetBSD: chfs_vfsops.c,v 1.3.2.2 2012/04/17 00:08:54 yamt Exp $ */ 2 1.3.2.2 yamt 3 1.3.2.2 yamt /*- 4 1.3.2.2 yamt * Copyright (c) 2010 Department of Software Engineering, 5 1.3.2.2 yamt * University of Szeged, Hungary 6 1.3.2.2 yamt * Copyright (C) 2010 Tamas Toth <ttoth (at) inf.u-szeged.hu> 7 1.3.2.2 yamt * Copyright (C) 2010 Adam Hoka <ahoka (at) NetBSD.org> 8 1.3.2.2 yamt * All rights reserved. 9 1.3.2.2 yamt * 10 1.3.2.2 yamt * This code is derived from software contributed to The NetBSD Foundation 11 1.3.2.2 yamt * by the Department of Software Engineering, University of Szeged, Hungary 12 1.3.2.2 yamt * 13 1.3.2.2 yamt * Redistribution and use in source and binary forms, with or without 14 1.3.2.2 yamt * modification, are permitted provided that the following conditions 15 1.3.2.2 yamt * are met: 16 1.3.2.2 yamt * 1. Redistributions of source code must retain the above copyright 17 1.3.2.2 yamt * notice, this list of conditions and the following disclaimer. 18 1.3.2.2 yamt * 2. Redistributions in binary form must reproduce the above copyright 19 1.3.2.2 yamt * notice, this list of conditions and the following disclaimer in the 20 1.3.2.2 yamt * documentation and/or other materials provided with the distribution. 21 1.3.2.2 yamt * 22 1.3.2.2 yamt * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 23 1.3.2.2 yamt * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 24 1.3.2.2 yamt * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 25 1.3.2.2 yamt * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 26 1.3.2.2 yamt * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 27 1.3.2.2 yamt * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 28 1.3.2.2 yamt * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 29 1.3.2.2 yamt * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 30 1.3.2.2 yamt * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 1.3.2.2 yamt * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 1.3.2.2 yamt * SUCH DAMAGE. 33 1.3.2.2 yamt */ 34 1.3.2.2 yamt 35 1.3.2.2 yamt #include <sys/cdefs.h> 36 1.3.2.2 yamt 37 1.3.2.2 yamt #include <sys/param.h> 38 1.3.2.2 yamt #include <sys/types.h> 39 1.3.2.2 yamt #include <sys/kmem.h> 40 1.3.2.2 yamt #include <sys/mount.h> 41 1.3.2.2 yamt #include <sys/stat.h> 42 1.3.2.2 yamt #include <sys/systm.h> 43 1.3.2.2 yamt #include <sys/proc.h> 44 1.3.2.2 yamt #include <sys/module.h> 45 1.3.2.2 yamt #include <sys/namei.h> 46 1.3.2.2 yamt #include <sys/malloc.h> 47 1.3.2.2 yamt #include <sys/fcntl.h> 48 1.3.2.2 yamt #include <sys/conf.h> 49 1.3.2.2 yamt #include <sys/buf.h> 50 1.3.2.2 yamt //XXX needed just for debugging 51 1.3.2.2 yamt #include <sys/fstrans.h> 52 1.3.2.2 yamt #include <sys/sleepq.h> 53 1.3.2.2 yamt #include <sys/lockdebug.h> 54 1.3.2.2 yamt #include <sys/ktrace.h> 55 1.3.2.2 yamt 56 1.3.2.2 yamt #include <uvm/uvm.h> 57 1.3.2.2 yamt #include <uvm/uvm_pager.h> 58 1.3.2.2 yamt #include <ufs/ufs/dir.h> 59 1.3.2.2 yamt //#include <ufs/ufs/inode.h> 60 1.3.2.2 yamt #include <ufs/ufs/ufs_extern.h> 61 1.3.2.2 yamt #include <miscfs/genfs/genfs.h> 62 1.3.2.2 yamt #include <miscfs/genfs/genfs_node.h> 63 1.3.2.2 yamt #include <miscfs/specfs/specdev.h> 64 1.3.2.2 yamt //#include </root/xipffs/netbsd.chfs/chfs.h> 65 1.3.2.2 yamt //#include </root/xipffs/netbsd.chfs/chfs_args.h> 66 1.3.2.2 yamt #include "chfs.h" 67 1.3.2.2 yamt #include "chfs_args.h" 68 1.3.2.2 yamt 69 1.3.2.2 yamt MODULE(MODULE_CLASS_VFS, chfs, "flash"); 70 1.3.2.2 yamt 71 1.3.2.2 yamt /* --------------------------------------------------------------------- */ 72 1.3.2.2 yamt /* functions */ 73 1.3.2.2 yamt 74 1.3.2.2 yamt static int chfs_mount(struct mount *, const char *, void *, size_t *); 75 1.3.2.2 yamt static int chfs_unmount(struct mount *, int); 76 1.3.2.2 yamt static int chfs_root(struct mount *, struct vnode **); 77 1.3.2.2 yamt static int chfs_vget(struct mount *, ino_t, struct vnode **); 78 1.3.2.2 yamt static int chfs_fhtovp(struct mount *, struct fid *, struct vnode **); 79 1.3.2.2 yamt static int chfs_vptofh(struct vnode *, struct fid *, size_t *); 80 1.3.2.2 yamt static int chfs_start(struct mount *, int); 81 1.3.2.2 yamt static int chfs_statvfs(struct mount *, struct statvfs *); 82 1.3.2.2 yamt static int chfs_sync(struct mount *, int, kauth_cred_t); 83 1.3.2.2 yamt static void chfs_init(void); 84 1.3.2.2 yamt static void chfs_reinit(void); 85 1.3.2.2 yamt static void chfs_done(void); 86 1.3.2.2 yamt static int chfs_snapshot(struct mount *, struct vnode *, 87 1.3.2.2 yamt struct timespec *); 88 1.3.2.2 yamt 89 1.3.2.2 yamt /* --------------------------------------------------------------------- */ 90 1.3.2.2 yamt /* structures */ 91 1.3.2.2 yamt 92 1.3.2.2 yamt int 93 1.3.2.2 yamt chfs_gop_alloc(struct vnode *vp, off_t off, off_t len, int flags, 94 1.3.2.2 yamt kauth_cred_t cred) 95 1.3.2.2 yamt { 96 1.3.2.2 yamt return (0); 97 1.3.2.2 yamt } 98 1.3.2.2 yamt 99 1.3.2.2 yamt const struct genfs_ops chfs_genfsops = { 100 1.3.2.2 yamt .gop_size = genfs_size, 101 1.3.2.2 yamt .gop_alloc = chfs_gop_alloc, 102 1.3.2.2 yamt .gop_write = genfs_gop_write, 103 1.3.2.2 yamt .gop_markupdate = ufs_gop_markupdate, 104 1.3.2.2 yamt }; 105 1.3.2.2 yamt 106 1.3.2.2 yamt /* 107 1.3.2.2 yamt static const struct ufs_ops chfs_ufsops = { 108 1.3.2.2 yamt .uo_itimes = chfs_itimes, 109 1.3.2.2 yamt .uo_update = chfs_update, 110 1.3.2.2 yamt }; 111 1.3.2.2 yamt */ 112 1.3.2.2 yamt 113 1.3.2.2 yamt struct pool chfs_inode_pool; 114 1.3.2.2 yamt 115 1.3.2.2 yamt /* for looking up the major for flash */ 116 1.3.2.2 yamt extern const struct cdevsw flash_cdevsw; 117 1.3.2.2 yamt 118 1.3.2.2 yamt /* --------------------------------------------------------------------- */ 119 1.3.2.2 yamt 120 1.3.2.2 yamt static int 121 1.3.2.2 yamt chfs_mount(struct mount *mp, 122 1.3.2.2 yamt const char *path, void *data, size_t *data_len) 123 1.3.2.2 yamt { 124 1.3.2.2 yamt struct lwp *l = curlwp; 125 1.3.2.2 yamt struct nameidata nd; 126 1.3.2.2 yamt struct pathbuf *pb; 127 1.3.2.2 yamt struct vnode *devvp = NULL; 128 1.3.2.2 yamt struct ufs_args *args = data; 129 1.3.2.2 yamt struct ufsmount *ump = NULL; 130 1.3.2.2 yamt struct chfs_mount *chmp; 131 1.3.2.2 yamt int err = 0; 132 1.3.2.2 yamt int xflags; 133 1.3.2.2 yamt 134 1.3.2.2 yamt dbg("mount()\n"); 135 1.3.2.2 yamt 136 1.3.2.2 yamt if (*data_len < sizeof *args) 137 1.3.2.2 yamt return EINVAL; 138 1.3.2.2 yamt 139 1.3.2.2 yamt if (mp->mnt_flag & MNT_GETARGS) { 140 1.3.2.2 yamt ump = VFSTOUFS(mp); 141 1.3.2.2 yamt if (ump == NULL) 142 1.3.2.2 yamt return EIO; 143 1.3.2.2 yamt memset(args, 0, sizeof *args); 144 1.3.2.2 yamt args->fspec = NULL; 145 1.3.2.2 yamt *data_len = sizeof *args; 146 1.3.2.2 yamt return 0; 147 1.3.2.2 yamt } 148 1.3.2.2 yamt 149 1.3.2.2 yamt if (mp->mnt_flag & MNT_UPDATE) { 150 1.3.2.2 yamt /* XXX: There is no support yet to update file system 151 1.3.2.2 yamt * settings. Should be added. */ 152 1.3.2.2 yamt 153 1.3.2.2 yamt return ENODEV; 154 1.3.2.2 yamt } 155 1.3.2.2 yamt 156 1.3.2.2 yamt if (args->fspec != NULL) { 157 1.3.2.2 yamt err = pathbuf_copyin(args->fspec, &pb); 158 1.3.2.2 yamt if (err) { 159 1.3.2.2 yamt return err; 160 1.3.2.2 yamt } 161 1.3.2.2 yamt /* 162 1.3.2.2 yamt * Look up the name and verify that it's sane. 163 1.3.2.2 yamt */ 164 1.3.2.2 yamt NDINIT(&nd, LOOKUP, FOLLOW, pb); 165 1.3.2.2 yamt if ((err = namei(&nd)) != 0 ) 166 1.3.2.2 yamt return (err); 167 1.3.2.2 yamt devvp = nd.ni_vp; 168 1.3.2.2 yamt 169 1.3.2.2 yamt /* 170 1.3.2.2 yamt * Be sure this is a valid block device 171 1.3.2.2 yamt */ 172 1.3.2.2 yamt if (devvp->v_type != VBLK) 173 1.3.2.2 yamt err = ENOTBLK; 174 1.3.2.2 yamt else if (bdevsw_lookup(devvp->v_rdev) == NULL) 175 1.3.2.2 yamt err = ENXIO; 176 1.3.2.2 yamt } 177 1.3.2.2 yamt 178 1.3.2.2 yamt if (err) { 179 1.3.2.2 yamt vrele(devvp); 180 1.3.2.2 yamt return (err); 181 1.3.2.2 yamt } 182 1.3.2.2 yamt 183 1.3.2.2 yamt if (mp->mnt_flag & MNT_RDONLY) 184 1.3.2.2 yamt xflags = FREAD; 185 1.3.2.2 yamt else 186 1.3.2.2 yamt xflags = FREAD|FWRITE; 187 1.3.2.2 yamt 188 1.3.2.2 yamt err = VOP_OPEN(devvp, xflags, FSCRED); 189 1.3.2.2 yamt if (err) 190 1.3.2.2 yamt goto fail; 191 1.3.2.2 yamt 192 1.3.2.2 yamt 193 1.3.2.2 yamt err = chfs_mountfs(devvp, mp); 194 1.3.2.2 yamt if (err) { 195 1.3.2.2 yamt vn_lock(devvp, LK_EXCLUSIVE | LK_RETRY); 196 1.3.2.2 yamt (void)VOP_CLOSE(devvp, xflags, NOCRED); 197 1.3.2.2 yamt VOP_UNLOCK(devvp); 198 1.3.2.2 yamt goto fail; 199 1.3.2.2 yamt } 200 1.3.2.2 yamt ump = VFSTOUFS(mp); 201 1.3.2.2 yamt chmp = ump->um_chfs; 202 1.3.2.2 yamt 203 1.3.2.2 yamt vfs_getnewfsid(mp); 204 1.3.2.2 yamt chmp->chm_fsmp = mp; 205 1.3.2.2 yamt 206 1.3.2.2 yamt return set_statvfs_info(path, 207 1.3.2.2 yamt UIO_USERSPACE, args->fspec, 208 1.3.2.2 yamt UIO_USERSPACE, mp->mnt_op->vfs_name, mp, l); 209 1.3.2.2 yamt 210 1.3.2.2 yamt fail: 211 1.3.2.2 yamt vrele(devvp); 212 1.3.2.2 yamt return (err); 213 1.3.2.2 yamt } 214 1.3.2.2 yamt 215 1.3.2.2 yamt 216 1.3.2.2 yamt int 217 1.3.2.2 yamt chfs_mountfs(struct vnode *devvp, struct mount *mp) 218 1.3.2.2 yamt { 219 1.3.2.2 yamt struct lwp *l = curlwp; 220 1.3.2.2 yamt struct proc *p; 221 1.3.2.2 yamt kauth_cred_t cred; 222 1.3.2.2 yamt devmajor_t flash_major; 223 1.3.2.2 yamt dev_t dev; 224 1.3.2.2 yamt struct ufsmount* ump = NULL; 225 1.3.2.2 yamt struct chfs_mount* chmp; 226 1.3.2.2 yamt struct vnode *vp; 227 1.3.2.2 yamt int err = 0; 228 1.3.2.2 yamt 229 1.3.2.2 yamt dbg("mountfs()\n"); 230 1.3.2.2 yamt 231 1.3.2.2 yamt dev = devvp->v_rdev; 232 1.3.2.2 yamt p = l ? l->l_proc : NULL; 233 1.3.2.2 yamt cred = l ? l->l_cred : NOCRED; 234 1.3.2.2 yamt 235 1.3.2.2 yamt /* Flush out any old buffers remaining from a previous use. */ 236 1.3.2.2 yamt vn_lock(devvp, LK_EXCLUSIVE | LK_RETRY); 237 1.3.2.2 yamt err = vinvalbuf(devvp, V_SAVE, cred, l, 0, 0); 238 1.3.2.2 yamt VOP_UNLOCK(devvp); 239 1.3.2.2 yamt if (err) 240 1.3.2.2 yamt return (err); 241 1.3.2.2 yamt 242 1.3.2.2 yamt flash_major = cdevsw_lookup_major(&flash_cdevsw); 243 1.3.2.2 yamt 244 1.3.2.2 yamt if (devvp->v_type != VBLK) 245 1.3.2.2 yamt err = ENOTBLK; 246 1.3.2.2 yamt else if (bdevsw_lookup(dev) == NULL) 247 1.3.2.2 yamt err = ENXIO; 248 1.3.2.2 yamt else if (major(dev) != flash_major) { 249 1.3.2.2 yamt dbg("major(dev): %d, flash_major: %d\n", 250 1.3.2.2 yamt major(dev), flash_major); 251 1.3.2.2 yamt err = ENODEV; 252 1.3.2.2 yamt } 253 1.3.2.2 yamt if (err) { 254 1.3.2.2 yamt vrele(devvp); 255 1.3.2.2 yamt return (err); 256 1.3.2.2 yamt } 257 1.3.2.2 yamt 258 1.3.2.2 yamt ump = malloc(sizeof(*ump), M_UFSMNT, M_WAITOK); 259 1.3.2.2 yamt memset(ump, 0, sizeof(*ump)); 260 1.3.2.2 yamt ump->um_fstype = UFS1; 261 1.3.2.2 yamt //ump->um_ops = &chfs_ufsops; 262 1.3.2.2 yamt ump->um_chfs = malloc(sizeof(struct chfs_mount), 263 1.3.2.2 yamt M_UFSMNT, M_WAITOK); 264 1.3.2.2 yamt memset(ump->um_chfs, 0, sizeof(struct chfs_mount)); 265 1.3.2.2 yamt 266 1.3.2.2 yamt mutex_init(&ump->um_lock, MUTEX_DEFAULT, IPL_NONE); 267 1.3.2.2 yamt 268 1.3.2.2 yamt /* Get superblock and set flash device number */ 269 1.3.2.2 yamt chmp = ump->um_chfs; 270 1.3.2.2 yamt if (!chmp) 271 1.3.2.2 yamt return ENOMEM; 272 1.3.2.2 yamt 273 1.3.2.2 yamt chmp->chm_ebh = kmem_alloc(sizeof(struct chfs_ebh), KM_SLEEP); 274 1.3.2.2 yamt 275 1.3.2.2 yamt dbg("[]opening flash: %u\n", (unsigned int)devvp->v_rdev); 276 1.3.2.2 yamt err = ebh_open(chmp->chm_ebh, devvp->v_rdev); 277 1.3.2.2 yamt if (err) { 278 1.3.2.2 yamt dbg("error while opening flash\n"); 279 1.3.2.2 yamt kmem_free(chmp->chm_ebh, sizeof(struct chfs_ebh)); 280 1.3.2.2 yamt free(chmp, M_UFSMNT); 281 1.3.2.2 yamt return err; 282 1.3.2.2 yamt } 283 1.3.2.2 yamt 284 1.3.2.2 yamt //TODO check flash sizes 285 1.3.2.2 yamt 286 1.3.2.2 yamt chmp->chm_gbl_version = 0; 287 1.3.2.2 yamt chmp->chm_vnocache_hash = chfs_vnocache_hash_init(); 288 1.3.2.2 yamt 289 1.3.2.2 yamt chmp->chm_blocks = kmem_zalloc(chmp->chm_ebh->peb_nr * 290 1.3.2.2 yamt sizeof(struct chfs_eraseblock), KM_SLEEP); 291 1.3.2.2 yamt 292 1.3.2.2 yamt if (!chmp->chm_blocks) { 293 1.3.2.2 yamt kmem_free(chmp->chm_ebh, chmp->chm_ebh->peb_nr * 294 1.3.2.2 yamt sizeof(struct chfs_eraseblock)); 295 1.3.2.2 yamt ebh_close(chmp->chm_ebh); 296 1.3.2.2 yamt free(chmp, M_UFSMNT); 297 1.3.2.2 yamt return ENOMEM; 298 1.3.2.2 yamt } 299 1.3.2.2 yamt 300 1.3.2.2 yamt mutex_init(&chmp->chm_lock_mountfields, MUTEX_DEFAULT, IPL_NONE); 301 1.3.2.2 yamt mutex_init(&chmp->chm_lock_sizes, MUTEX_DEFAULT, IPL_NONE); 302 1.3.2.2 yamt mutex_init(&chmp->chm_lock_vnocache, MUTEX_DEFAULT, IPL_NONE); 303 1.3.2.2 yamt 304 1.3.2.2 yamt //XXX 305 1.3.2.2 yamt chmp->chm_fs_bmask = -4096; 306 1.3.2.2 yamt chmp->chm_fs_bsize = 4096; 307 1.3.2.2 yamt chmp->chm_fs_qbmask = 4095; 308 1.3.2.2 yamt chmp->chm_fs_bshift = 12; 309 1.3.2.2 yamt chmp->chm_fs_fmask = -2048; 310 1.3.2.2 yamt chmp->chm_fs_qfmask = 2047; 311 1.3.2.2 yamt 312 1.3.2.2 yamt chmp->chm_wbuf_pagesize = chmp->chm_ebh->flash_if->page_size; 313 1.3.2.2 yamt dbg("wbuf size: %zu\n", chmp->chm_wbuf_pagesize); 314 1.3.2.2 yamt chmp->chm_wbuf = kmem_alloc(chmp->chm_wbuf_pagesize, KM_SLEEP); 315 1.3.2.2 yamt rw_init(&chmp->chm_lock_wbuf); 316 1.3.2.2 yamt 317 1.3.2.2 yamt //init queues 318 1.3.2.2 yamt TAILQ_INIT(&chmp->chm_free_queue); 319 1.3.2.2 yamt TAILQ_INIT(&chmp->chm_clean_queue); 320 1.3.2.2 yamt TAILQ_INIT(&chmp->chm_dirty_queue); 321 1.3.2.2 yamt TAILQ_INIT(&chmp->chm_very_dirty_queue); 322 1.3.2.2 yamt TAILQ_INIT(&chmp->chm_erasable_pending_wbuf_queue); 323 1.3.2.2 yamt TAILQ_INIT(&chmp->chm_erase_pending_queue); 324 1.3.2.2 yamt 325 1.3.2.2 yamt chfs_calc_trigger_levels(chmp); 326 1.3.2.2 yamt 327 1.3.2.2 yamt chmp->chm_nr_free_blocks = 0; 328 1.3.2.2 yamt chmp->chm_nr_erasable_blocks = 0; 329 1.3.2.2 yamt chmp->chm_max_vno = 2; 330 1.3.2.2 yamt chmp->chm_checked_vno = 2; 331 1.3.2.2 yamt chmp->chm_unchecked_size = 0; 332 1.3.2.2 yamt chmp->chm_used_size = 0; 333 1.3.2.2 yamt chmp->chm_dirty_size = 0; 334 1.3.2.2 yamt chmp->chm_wasted_size = 0; 335 1.3.2.2 yamt chmp->chm_free_size = chmp->chm_ebh->eb_size * chmp->chm_ebh->peb_nr; 336 1.3.2.2 yamt err = chfs_build_filesystem(chmp); 337 1.3.2.2 yamt 338 1.3.2.2 yamt if (err) { 339 1.3.2.2 yamt chfs_vnocache_hash_destroy(chmp->chm_vnocache_hash); 340 1.3.2.2 yamt kmem_free(chmp->chm_ebh, chmp->chm_ebh->peb_nr * 341 1.3.2.2 yamt sizeof(struct chfs_eraseblock)); 342 1.3.2.2 yamt ebh_close(chmp->chm_ebh); 343 1.3.2.2 yamt free(chmp, M_UFSMNT); 344 1.3.2.2 yamt return EIO; 345 1.3.2.2 yamt } 346 1.3.2.2 yamt 347 1.3.2.2 yamt mp->mnt_data = ump; 348 1.3.2.2 yamt mp->mnt_stat.f_fsidx.__fsid_val[0] = (long)dev; 349 1.3.2.2 yamt mp->mnt_stat.f_fsidx.__fsid_val[1] = makefstype(MOUNT_CHFS); 350 1.3.2.2 yamt mp->mnt_stat.f_fsid = mp->mnt_stat.f_fsidx.__fsid_val[0]; 351 1.3.2.2 yamt mp->mnt_stat.f_namemax = MAXNAMLEN; 352 1.3.2.2 yamt mp->mnt_flag |= MNT_LOCAL; 353 1.3.2.2 yamt mp->mnt_fs_bshift = PAGE_SHIFT; 354 1.3.2.2 yamt mp->mnt_dev_bshift = DEV_BSHIFT; 355 1.3.2.2 yamt mp->mnt_iflag |= IMNT_MPSAFE; 356 1.3.2.2 yamt ump->um_flags = 0; 357 1.3.2.2 yamt ump->um_mountp = mp; 358 1.3.2.2 yamt ump->um_dev = dev; 359 1.3.2.2 yamt ump->um_devvp = devvp; 360 1.3.2.2 yamt ump->um_maxfilesize = 1048512 * 1024; 361 1.3.2.2 yamt /*TODO fill these fields 362 1.3.2.2 yamt ump->um_nindir = 363 1.3.2.2 yamt ump->um_lognindir = 364 1.3.2.2 yamt ump->um_bptrtodb = 365 1.3.2.2 yamt ump->um_seqinc = 366 1.3.2.2 yamt ump->um_maxsymlinklen = 367 1.3.2.2 yamt ump->um_dirblksiz = 368 1.3.2.2 yamt ump->um_maxfilesize = 369 1.3.2.2 yamt */ 370 1.3.2.2 yamt 371 1.3.2.2 yamt /* 372 1.3.2.2 yamt * Allocate the root vnode. 373 1.3.2.2 yamt */ 374 1.3.2.2 yamt err = VFS_VGET(mp, CHFS_ROOTINO, &vp); 375 1.3.2.2 yamt if (err) { 376 1.3.2.2 yamt dbg("error: %d while allocating root node\n", err); 377 1.3.2.2 yamt return err; 378 1.3.2.2 yamt } 379 1.3.2.2 yamt vput(vp); 380 1.3.2.2 yamt 381 1.3.2.2 yamt chfs_gc_thread_start(chmp); 382 1.3.2.2 yamt mutex_enter(&chmp->chm_lock_mountfields); 383 1.3.2.2 yamt chfs_gc_trigger(chmp); 384 1.3.2.2 yamt mutex_exit(&chmp->chm_lock_mountfields); 385 1.3.2.2 yamt 386 1.3.2.2 yamt devvp->v_specmountpoint = mp; 387 1.3.2.2 yamt return 0; 388 1.3.2.2 yamt } 389 1.3.2.2 yamt 390 1.3.2.2 yamt /* --------------------------------------------------------------------- */ 391 1.3.2.2 yamt 392 1.3.2.2 yamt /* ARGSUSED2 */ 393 1.3.2.2 yamt static int 394 1.3.2.2 yamt chfs_unmount(struct mount *mp, int mntflags) 395 1.3.2.2 yamt { 396 1.3.2.2 yamt int flags = 0, i = 0; 397 1.3.2.2 yamt struct ufsmount *ump; 398 1.3.2.2 yamt struct chfs_mount *chmp; 399 1.3.2.2 yamt // struct chfs_vnode_cache *vc, *next; 400 1.3.2.2 yamt 401 1.3.2.2 yamt if (mntflags & MNT_FORCE) 402 1.3.2.2 yamt flags |= FORCECLOSE; 403 1.3.2.2 yamt 404 1.3.2.2 yamt dbg("[START]\n"); 405 1.3.2.2 yamt 406 1.3.2.2 yamt ump = VFSTOUFS(mp); 407 1.3.2.2 yamt chmp = ump->um_chfs; 408 1.3.2.2 yamt 409 1.3.2.2 yamt chfs_gc_thread_stop(chmp); 410 1.3.2.2 yamt 411 1.3.2.2 yamt (void)vflush(mp, NULLVP, flags); 412 1.3.2.2 yamt 413 1.3.2.2 yamt if (chmp->chm_wbuf_len) { 414 1.3.2.2 yamt mutex_enter(&chmp->chm_lock_mountfields); 415 1.3.2.2 yamt chfs_flush_pending_wbuf(chmp); 416 1.3.2.2 yamt mutex_exit(&chmp->chm_lock_mountfields); 417 1.3.2.2 yamt } 418 1.3.2.2 yamt 419 1.3.2.2 yamt for (i = 0; i < chmp->chm_ebh->peb_nr; i++) { 420 1.3.2.2 yamt chfs_free_node_refs(&chmp->chm_blocks[i]); 421 1.3.2.2 yamt } 422 1.3.2.2 yamt 423 1.3.2.2 yamt chfs_vnocache_hash_destroy(chmp->chm_vnocache_hash); 424 1.3.2.2 yamt 425 1.3.2.2 yamt ebh_close(chmp->chm_ebh); 426 1.3.2.2 yamt 427 1.3.2.2 yamt rw_destroy(&chmp->chm_lock_wbuf); 428 1.3.2.2 yamt mutex_destroy(&chmp->chm_lock_vnocache); 429 1.3.2.2 yamt mutex_destroy(&chmp->chm_lock_sizes); 430 1.3.2.2 yamt mutex_destroy(&chmp->chm_lock_mountfields); 431 1.3.2.2 yamt 432 1.3.2.2 yamt if (ump->um_devvp->v_type != VBAD) { 433 1.3.2.2 yamt ump->um_devvp->v_specmountpoint = NULL; 434 1.3.2.2 yamt } 435 1.3.2.2 yamt vn_lock(ump->um_devvp, LK_EXCLUSIVE | LK_RETRY); 436 1.3.2.2 yamt (void)VOP_CLOSE(ump->um_devvp, FREAD|FWRITE, NOCRED); 437 1.3.2.2 yamt vput(ump->um_devvp); 438 1.3.2.2 yamt 439 1.3.2.2 yamt mutex_destroy(&ump->um_lock); 440 1.3.2.2 yamt 441 1.3.2.2 yamt //free(ump->um_chfs, M_UFSMNT); 442 1.3.2.2 yamt free(ump, M_UFSMNT); 443 1.3.2.2 yamt mp->mnt_data = NULL; 444 1.3.2.2 yamt mp->mnt_flag &= ~MNT_LOCAL; 445 1.3.2.2 yamt dbg("[END]\n"); 446 1.3.2.2 yamt return (0); 447 1.3.2.2 yamt } 448 1.3.2.2 yamt 449 1.3.2.2 yamt /* --------------------------------------------------------------------- */ 450 1.3.2.2 yamt 451 1.3.2.2 yamt static int 452 1.3.2.2 yamt chfs_root(struct mount *mp, struct vnode **vpp) 453 1.3.2.2 yamt { 454 1.3.2.2 yamt struct vnode *vp; 455 1.3.2.2 yamt int error; 456 1.3.2.2 yamt 457 1.3.2.2 yamt if ((error = VFS_VGET(mp, (ino_t)ROOTINO, &vp)) != 0) 458 1.3.2.2 yamt return error; 459 1.3.2.2 yamt *vpp = vp; 460 1.3.2.2 yamt return 0; 461 1.3.2.2 yamt } 462 1.3.2.2 yamt 463 1.3.2.2 yamt /* --------------------------------------------------------------------- */ 464 1.3.2.2 yamt 465 1.3.2.2 yamt extern rb_tree_ops_t frag_rbtree_ops; 466 1.3.2.2 yamt 467 1.3.2.2 yamt static int 468 1.3.2.2 yamt chfs_vget(struct mount *mp, ino_t ino, struct vnode **vpp) 469 1.3.2.2 yamt { 470 1.3.2.2 yamt struct chfs_mount *chmp; 471 1.3.2.2 yamt struct chfs_inode *ip; 472 1.3.2.2 yamt struct ufsmount *ump; 473 1.3.2.2 yamt struct vnode *vp; 474 1.3.2.2 yamt dev_t dev; 475 1.3.2.2 yamt int error; 476 1.3.2.2 yamt struct chfs_vnode_cache* chvc = NULL; 477 1.3.2.2 yamt struct chfs_node_ref* nref = NULL; 478 1.3.2.2 yamt struct buf *bp; 479 1.3.2.2 yamt 480 1.3.2.2 yamt dbg("vget() | ino: %llu\n", (unsigned long long)ino); 481 1.3.2.2 yamt 482 1.3.2.2 yamt ump = VFSTOUFS(mp); 483 1.3.2.2 yamt dev = ump->um_dev; 484 1.3.2.2 yamt retry: 485 1.3.2.2 yamt if (!vpp) { 486 1.3.2.2 yamt vpp = kmem_alloc(sizeof(struct vnode*), KM_SLEEP); 487 1.3.2.2 yamt } 488 1.3.2.2 yamt 489 1.3.2.2 yamt if ((*vpp = chfs_ihashget(dev, ino, LK_EXCLUSIVE)) != NULL) { 490 1.3.2.2 yamt return 0; 491 1.3.2.2 yamt } 492 1.3.2.2 yamt 493 1.3.2.2 yamt /* Allocate a new vnode/inode. */ 494 1.3.2.2 yamt if ((error = getnewvnode(VT_CHFS, 495 1.3.2.2 yamt mp, chfs_vnodeop_p, NULL, &vp)) != 0) { 496 1.3.2.2 yamt *vpp = NULL; 497 1.3.2.2 yamt return (error); 498 1.3.2.2 yamt } 499 1.3.2.2 yamt ip = pool_get(&chfs_inode_pool, PR_WAITOK); 500 1.3.2.2 yamt 501 1.3.2.2 yamt mutex_enter(&chfs_hashlock); 502 1.3.2.2 yamt if ((*vpp = chfs_ihashget(dev, ino, LK_EXCLUSIVE)) != NULL) { 503 1.3.2.2 yamt mutex_exit(&chfs_hashlock); 504 1.3.2.2 yamt ungetnewvnode(vp); 505 1.3.2.2 yamt pool_put(&chfs_inode_pool, ip); 506 1.3.2.2 yamt goto retry; 507 1.3.2.2 yamt } 508 1.3.2.2 yamt 509 1.3.2.2 yamt vp->v_vflag |= VV_LOCKSWORK; 510 1.3.2.2 yamt 511 1.3.2.2 yamt memset(ip, 0, sizeof(*ip)); 512 1.3.2.2 yamt vp->v_data = ip; 513 1.3.2.2 yamt ip->vp = vp; 514 1.3.2.2 yamt ip->ch_type = VTTOCHT(vp->v_type); 515 1.3.2.2 yamt ip->ump = ump; 516 1.3.2.2 yamt ip->chmp = chmp = ump->um_chfs; 517 1.3.2.2 yamt ip->dev = dev; 518 1.3.2.2 yamt ip->ino = ino; 519 1.3.2.2 yamt vp->v_mount = mp; 520 1.3.2.2 yamt genfs_node_init(vp, &chfs_genfsops); 521 1.3.2.2 yamt 522 1.3.2.2 yamt rb_tree_init(&ip->fragtree, &frag_rbtree_ops); 523 1.3.2.2 yamt //mutex_init(&ip->inode_lock, MUTEX_DEFAULT, IPL_NONE); 524 1.3.2.2 yamt 525 1.3.2.2 yamt chfs_ihashins(ip); 526 1.3.2.2 yamt mutex_exit(&chfs_hashlock); 527 1.3.2.2 yamt 528 1.3.2.2 yamt // set root inode 529 1.3.2.2 yamt if (ino == CHFS_ROOTINO) { 530 1.3.2.2 yamt dbg("SETROOT\n"); 531 1.3.2.2 yamt vp->v_vflag |= VV_ROOT; 532 1.3.2.2 yamt vp->v_type = VDIR; 533 1.3.2.2 yamt ip->ch_type = CHT_DIR; 534 1.3.2.2 yamt ip->mode = IFMT | IEXEC | IWRITE | IREAD; 535 1.3.2.2 yamt ip->iflag |= (IN_ACCESS | IN_CHANGE | IN_UPDATE); 536 1.3.2.2 yamt chfs_update(vp, NULL, NULL, UPDATE_WAIT); 537 1.3.2.2 yamt // ip->dents = NULL; XXXTAILQ 538 1.3.2.2 yamt TAILQ_INIT(&ip->dents); 539 1.3.2.2 yamt chfs_set_vnode_size(vp, 512); 540 1.3.2.2 yamt } 541 1.3.2.2 yamt 542 1.3.2.2 yamt // set vnode cache 543 1.3.2.2 yamt mutex_enter(&chmp->chm_lock_vnocache); 544 1.3.2.2 yamt chvc = chfs_vnode_cache_get(chmp, ino); 545 1.3.2.2 yamt mutex_exit(&chmp->chm_lock_vnocache); 546 1.3.2.2 yamt if (!chvc) { 547 1.3.2.2 yamt dbg("!chvc\n"); 548 1.3.2.2 yamt /* XXX, we cant alloc under a lock, refactor this! */ 549 1.3.2.2 yamt chvc = chfs_vnode_cache_alloc(ino); 550 1.3.2.2 yamt mutex_enter(&chmp->chm_lock_vnocache); 551 1.3.2.2 yamt if (ino == CHFS_ROOTINO) { 552 1.3.2.2 yamt chvc->nlink = 2; 553 1.3.2.2 yamt chvc->pvno = CHFS_ROOTINO; 554 1.3.2.2 yamt chfs_vnode_cache_set_state(chmp, 555 1.3.2.2 yamt chvc, VNO_STATE_CHECKEDABSENT); 556 1.3.2.2 yamt } 557 1.3.2.2 yamt chfs_vnode_cache_add(chmp, chvc); 558 1.3.2.2 yamt mutex_exit(&chmp->chm_lock_vnocache); 559 1.3.2.2 yamt 560 1.3.2.2 yamt ip->chvc = chvc; 561 1.3.2.2 yamt TAILQ_INIT(&ip->dents); 562 1.3.2.2 yamt } else { 563 1.3.2.2 yamt dbg("chvc\n"); 564 1.3.2.2 yamt ip->chvc = chvc; 565 1.3.2.2 yamt // if we have a vnode cache, the node is already on flash, so read it 566 1.3.2.2 yamt if (ino == CHFS_ROOTINO) { 567 1.3.2.2 yamt chvc->pvno = CHFS_ROOTINO; 568 1.3.2.2 yamt TAILQ_INIT(&chvc->scan_dirents); 569 1.3.2.2 yamt } else { 570 1.3.2.2 yamt chfs_readvnode(mp, ino, &vp); 571 1.3.2.2 yamt } 572 1.3.2.2 yamt 573 1.3.2.2 yamt mutex_enter(&chmp->chm_lock_mountfields); 574 1.3.2.2 yamt // init type specific things 575 1.3.2.2 yamt switch (ip->ch_type) { 576 1.3.2.2 yamt case CHT_DIR: 577 1.3.2.2 yamt nref = chvc->dirents; 578 1.3.2.2 yamt while (nref && 579 1.3.2.2 yamt (struct chfs_vnode_cache *)nref != chvc) { 580 1.3.2.2 yamt chfs_readdirent(mp, nref, ip); 581 1.3.2.2 yamt nref = nref->nref_next; 582 1.3.2.2 yamt } 583 1.3.2.2 yamt chfs_set_vnode_size(vp, 512); 584 1.3.2.2 yamt break; 585 1.3.2.2 yamt case CHT_REG: 586 1.3.2.2 yamt case CHT_SOCK: 587 1.3.2.2 yamt //build the fragtree of the vnode 588 1.3.2.2 yamt dbg("read_inode_internal | ino: %llu\n", 589 1.3.2.2 yamt (unsigned long long)ip->ino); 590 1.3.2.2 yamt error = chfs_read_inode(chmp, ip); 591 1.3.2.2 yamt if (error) { 592 1.3.2.2 yamt vput(vp); 593 1.3.2.2 yamt *vpp = NULL; 594 1.3.2.2 yamt mutex_exit(&chmp->chm_lock_mountfields); 595 1.3.2.2 yamt return (error); 596 1.3.2.2 yamt } 597 1.3.2.2 yamt break; 598 1.3.2.2 yamt case CHT_LNK: 599 1.3.2.2 yamt //build the fragtree of the vnode 600 1.3.2.2 yamt dbg("read_inode_internal | ino: %llu\n", 601 1.3.2.2 yamt (unsigned long long)ip->ino); 602 1.3.2.2 yamt error = chfs_read_inode_internal(chmp, ip); 603 1.3.2.2 yamt if (error) { 604 1.3.2.2 yamt vput(vp); 605 1.3.2.2 yamt *vpp = NULL; 606 1.3.2.2 yamt mutex_exit(&chmp->chm_lock_mountfields); 607 1.3.2.2 yamt return (error); 608 1.3.2.2 yamt } 609 1.3.2.2 yamt 610 1.3.2.2 yamt dbg("size: %llu\n", (unsigned long long)ip->size); 611 1.3.2.2 yamt bp = getiobuf(vp, true); 612 1.3.2.2 yamt bp->b_blkno = 0; 613 1.3.2.2 yamt bp->b_bufsize = bp->b_resid = 614 1.3.2.2 yamt bp->b_bcount = ip->size; 615 1.3.2.2 yamt bp->b_data = kmem_alloc(ip->size, KM_SLEEP); 616 1.3.2.2 yamt chfs_read_data(chmp, vp, bp); 617 1.3.2.2 yamt if (!ip->target) 618 1.3.2.2 yamt ip->target = kmem_alloc(ip->size, 619 1.3.2.2 yamt KM_SLEEP); 620 1.3.2.2 yamt memcpy(ip->target, bp->b_data, ip->size); 621 1.3.2.2 yamt kmem_free(bp->b_data, ip->size); 622 1.3.2.2 yamt putiobuf(bp); 623 1.3.2.2 yamt 624 1.3.2.2 yamt break; 625 1.3.2.2 yamt case CHT_CHR: 626 1.3.2.2 yamt case CHT_BLK: 627 1.3.2.2 yamt case CHT_FIFO: 628 1.3.2.2 yamt //build the fragtree of the vnode 629 1.3.2.2 yamt dbg("read_inode_internal | ino: %llu\n", 630 1.3.2.2 yamt (unsigned long long)ip->ino); 631 1.3.2.2 yamt error = chfs_read_inode_internal(chmp, ip); 632 1.3.2.2 yamt if (error) { 633 1.3.2.2 yamt vput(vp); 634 1.3.2.2 yamt *vpp = NULL; 635 1.3.2.2 yamt mutex_exit(&chmp->chm_lock_mountfields); 636 1.3.2.2 yamt return (error); 637 1.3.2.2 yamt } 638 1.3.2.2 yamt 639 1.3.2.2 yamt bp = getiobuf(vp, true); 640 1.3.2.2 yamt bp->b_blkno = 0; 641 1.3.2.2 yamt bp->b_bufsize = bp->b_resid = 642 1.3.2.2 yamt bp->b_bcount = sizeof(dev_t); 643 1.3.2.2 yamt bp->b_data = kmem_alloc(sizeof(dev_t), KM_SLEEP); 644 1.3.2.2 yamt chfs_read_data(chmp, vp, bp); 645 1.3.2.2 yamt memcpy(&ip->rdev, 646 1.3.2.2 yamt bp->b_data, sizeof(dev_t)); 647 1.3.2.2 yamt kmem_free(bp->b_data, sizeof(dev_t)); 648 1.3.2.2 yamt putiobuf(bp); 649 1.3.2.2 yamt if (ip->ch_type == CHT_FIFO) { 650 1.3.2.2 yamt vp->v_op = chfs_fifoop_p; 651 1.3.2.2 yamt } else { 652 1.3.2.2 yamt vp->v_op = chfs_specop_p; 653 1.3.2.2 yamt spec_node_init(vp, ip->rdev); 654 1.3.2.2 yamt } 655 1.3.2.2 yamt 656 1.3.2.2 yamt break; 657 1.3.2.2 yamt case CHT_BLANK: 658 1.3.2.2 yamt case CHT_BAD: 659 1.3.2.2 yamt break; 660 1.3.2.2 yamt } 661 1.3.2.2 yamt mutex_exit(&chmp->chm_lock_mountfields); 662 1.3.2.2 yamt 663 1.3.2.2 yamt } 664 1.3.2.2 yamt 665 1.3.2.2 yamt /* finish inode initalization */ 666 1.3.2.2 yamt ip->devvp = ump->um_devvp; 667 1.3.2.2 yamt vref(ip->devvp); 668 1.3.2.2 yamt 669 1.3.2.2 yamt uvm_vnp_setsize(vp, ip->size); 670 1.3.2.2 yamt *vpp = vp; 671 1.3.2.2 yamt 672 1.3.2.2 yamt return 0; 673 1.3.2.2 yamt } 674 1.3.2.2 yamt 675 1.3.2.2 yamt /* --------------------------------------------------------------------- */ 676 1.3.2.2 yamt 677 1.3.2.2 yamt static int 678 1.3.2.2 yamt chfs_fhtovp(struct mount *mp, struct fid *fhp, struct vnode **vpp) 679 1.3.2.2 yamt { 680 1.3.2.2 yamt return ENODEV; 681 1.3.2.2 yamt } 682 1.3.2.2 yamt 683 1.3.2.2 yamt /* --------------------------------------------------------------------- */ 684 1.3.2.2 yamt 685 1.3.2.2 yamt static int 686 1.3.2.2 yamt chfs_vptofh(struct vnode *vp, struct fid *fhp, size_t *fh_size) 687 1.3.2.2 yamt { 688 1.3.2.2 yamt return ENODEV; 689 1.3.2.2 yamt } 690 1.3.2.2 yamt 691 1.3.2.2 yamt /* --------------------------------------------------------------------- */ 692 1.3.2.2 yamt 693 1.3.2.2 yamt static int 694 1.3.2.2 yamt chfs_start(struct mount *mp, int flags) 695 1.3.2.2 yamt { 696 1.3.2.2 yamt return 0; 697 1.3.2.2 yamt } 698 1.3.2.2 yamt 699 1.3.2.2 yamt /* --------------------------------------------------------------------- */ 700 1.3.2.2 yamt 701 1.3.2.2 yamt /* ARGSUSED2 */ 702 1.3.2.2 yamt static int 703 1.3.2.2 yamt chfs_statvfs(struct mount *mp, struct statvfs *sbp) 704 1.3.2.2 yamt { 705 1.3.2.2 yamt struct chfs_mount *chmp; 706 1.3.2.2 yamt struct ufsmount *ump; 707 1.3.2.2 yamt dbg("statvfs\n"); 708 1.3.2.2 yamt 709 1.3.2.2 yamt ump = VFSTOUFS(mp); 710 1.3.2.2 yamt chmp = ump->um_chfs; 711 1.3.2.2 yamt 712 1.3.2.2 yamt sbp->f_flag = mp->mnt_flag; 713 1.3.2.2 yamt sbp->f_bsize = chmp->chm_ebh->eb_size; 714 1.3.2.2 yamt sbp->f_frsize = chmp->chm_ebh->eb_size; 715 1.3.2.2 yamt sbp->f_iosize = chmp->chm_ebh->eb_size; 716 1.3.2.2 yamt 717 1.3.2.2 yamt sbp->f_blocks = chmp->chm_ebh->peb_nr; 718 1.3.2.2 yamt sbp->f_files = 0; 719 1.3.2.2 yamt sbp->f_bavail = chmp->chm_nr_free_blocks - chmp->chm_resv_blocks_write; 720 1.3.2.2 yamt #if 0 721 1.3.2.2 yamt printf("chmp->chm_nr_free_blocks: %jd\n", 722 1.3.2.2 yamt (intmax_t )chmp->chm_nr_free_blocks); 723 1.3.2.2 yamt printf("chmp->chm_resv_blocks_write: %jd\n", 724 1.3.2.2 yamt (intmax_t) chmp->chm_resv_blocks_write); 725 1.3.2.2 yamt printf("chmp->chm_ebh->peb_nr: %jd\n", 726 1.3.2.2 yamt (intmax_t) chmp->chm_ebh->peb_nr); 727 1.3.2.2 yamt #endif 728 1.3.2.2 yamt 729 1.3.2.2 yamt sbp->f_bfree = chmp->chm_nr_free_blocks; 730 1.3.2.2 yamt sbp->f_bresvd = chmp->chm_resv_blocks_write; 731 1.3.2.2 yamt 732 1.3.2.2 yamt /* FFS specific */ 733 1.3.2.2 yamt sbp->f_ffree = 0; 734 1.3.2.2 yamt sbp->f_favail = 0; 735 1.3.2.2 yamt sbp->f_fresvd = 0; 736 1.3.2.2 yamt 737 1.3.2.2 yamt copy_statvfs_info(sbp, mp); 738 1.3.2.2 yamt 739 1.3.2.2 yamt return 0; 740 1.3.2.2 yamt } 741 1.3.2.2 yamt 742 1.3.2.2 yamt /* --------------------------------------------------------------------- */ 743 1.3.2.2 yamt 744 1.3.2.2 yamt /* ARGSUSED0 */ 745 1.3.2.2 yamt static int 746 1.3.2.2 yamt chfs_sync(struct mount *mp, int waitfor, 747 1.3.2.2 yamt kauth_cred_t uc) 748 1.3.2.2 yamt { 749 1.3.2.2 yamt return 0; 750 1.3.2.2 yamt } 751 1.3.2.2 yamt 752 1.3.2.2 yamt /* --------------------------------------------------------------------- */ 753 1.3.2.2 yamt 754 1.3.2.2 yamt static void 755 1.3.2.2 yamt chfs_init(void) 756 1.3.2.2 yamt { 757 1.3.2.2 yamt chfs_alloc_pool_caches(); 758 1.3.2.2 yamt chfs_ihashinit(); 759 1.3.2.2 yamt pool_init(&chfs_inode_pool, sizeof(struct chfs_inode), 0, 0, 0, 760 1.3.2.2 yamt "chfsinopl", &pool_allocator_nointr, IPL_NONE); 761 1.3.2.2 yamt ufs_init(); 762 1.3.2.2 yamt } 763 1.3.2.2 yamt 764 1.3.2.2 yamt /* --------------------------------------------------------------------- */ 765 1.3.2.2 yamt 766 1.3.2.2 yamt static void 767 1.3.2.2 yamt chfs_reinit(void) 768 1.3.2.2 yamt { 769 1.3.2.2 yamt chfs_ihashreinit(); 770 1.3.2.2 yamt ufs_reinit(); 771 1.3.2.2 yamt } 772 1.3.2.2 yamt 773 1.3.2.2 yamt /* --------------------------------------------------------------------- */ 774 1.3.2.2 yamt 775 1.3.2.2 yamt static void 776 1.3.2.2 yamt chfs_done(void) 777 1.3.2.2 yamt { 778 1.3.2.2 yamt ufs_done(); 779 1.3.2.2 yamt chfs_ihashdone(); 780 1.3.2.2 yamt pool_destroy(&chfs_inode_pool); 781 1.3.2.2 yamt chfs_destroy_pool_caches(); 782 1.3.2.2 yamt } 783 1.3.2.2 yamt 784 1.3.2.2 yamt /* --------------------------------------------------------------------- */ 785 1.3.2.2 yamt 786 1.3.2.2 yamt static int 787 1.3.2.2 yamt chfs_snapshot(struct mount *mp, struct vnode *vp, 788 1.3.2.2 yamt struct timespec *ctime) 789 1.3.2.2 yamt { 790 1.3.2.2 yamt return ENODEV; 791 1.3.2.2 yamt } 792 1.3.2.2 yamt 793 1.3.2.2 yamt /* --------------------------------------------------------------------- */ 794 1.3.2.2 yamt 795 1.3.2.2 yamt /* 796 1.3.2.2 yamt * chfs vfs operations. 797 1.3.2.2 yamt */ 798 1.3.2.2 yamt 799 1.3.2.2 yamt extern const struct vnodeopv_desc chfs_fifoop_opv_desc; 800 1.3.2.2 yamt extern const struct vnodeopv_desc chfs_specop_opv_desc; 801 1.3.2.2 yamt extern const struct vnodeopv_desc chfs_vnodeop_opv_desc; 802 1.3.2.2 yamt 803 1.3.2.2 yamt const struct vnodeopv_desc * const chfs_vnodeopv_descs[] = { 804 1.3.2.2 yamt &chfs_fifoop_opv_desc, 805 1.3.2.2 yamt &chfs_specop_opv_desc, 806 1.3.2.2 yamt &chfs_vnodeop_opv_desc, 807 1.3.2.2 yamt NULL, 808 1.3.2.2 yamt }; 809 1.3.2.2 yamt 810 1.3.2.2 yamt struct vfsops chfs_vfsops = { 811 1.3.2.2 yamt MOUNT_CHFS, /* vfs_name */ 812 1.3.2.2 yamt sizeof (struct chfs_args), 813 1.3.2.2 yamt chfs_mount, /* vfs_mount */ 814 1.3.2.2 yamt chfs_start, /* vfs_start */ 815 1.3.2.2 yamt chfs_unmount, /* vfs_unmount */ 816 1.3.2.2 yamt chfs_root, /* vfs_root */ 817 1.3.2.2 yamt ufs_quotactl, /* vfs_quotactl */ 818 1.3.2.2 yamt chfs_statvfs, /* vfs_statvfs */ 819 1.3.2.2 yamt chfs_sync, /* vfs_sync */ 820 1.3.2.2 yamt chfs_vget, /* vfs_vget */ 821 1.3.2.2 yamt chfs_fhtovp, /* vfs_fhtovp */ 822 1.3.2.2 yamt chfs_vptofh, /* vfs_vptofh */ 823 1.3.2.2 yamt chfs_init, /* vfs_init */ 824 1.3.2.2 yamt chfs_reinit, /* vfs_reinit */ 825 1.3.2.2 yamt chfs_done, /* vfs_done */ 826 1.3.2.2 yamt NULL, /* vfs_mountroot */ 827 1.3.2.2 yamt chfs_snapshot, /* vfs_snapshot */ 828 1.3.2.2 yamt vfs_stdextattrctl, /* vfs_extattrctl */ 829 1.3.2.2 yamt (void *)eopnotsupp, /* vfs_suspendctl */ 830 1.3.2.2 yamt genfs_renamelock_enter, 831 1.3.2.2 yamt genfs_renamelock_exit, 832 1.3.2.2 yamt (void *)eopnotsupp, 833 1.3.2.2 yamt chfs_vnodeopv_descs, 834 1.3.2.2 yamt 0, /* vfs_refcount */ 835 1.3.2.2 yamt { NULL, NULL }, 836 1.3.2.2 yamt }; 837 1.3.2.2 yamt 838 1.3.2.2 yamt static int 839 1.3.2.2 yamt chfs_modcmd(modcmd_t cmd, void *arg) 840 1.3.2.2 yamt { 841 1.3.2.2 yamt switch (cmd) { 842 1.3.2.2 yamt case MODULE_CMD_INIT: 843 1.3.2.2 yamt return vfs_attach(&chfs_vfsops); 844 1.3.2.2 yamt case MODULE_CMD_FINI: 845 1.3.2.2 yamt return vfs_detach(&chfs_vfsops); 846 1.3.2.2 yamt default: 847 1.3.2.2 yamt return ENOTTY; 848 1.3.2.2 yamt } 849 1.3.2.2 yamt } 850
Indexes created Wed Oct 22 13:09:56 GMT 2025