chfs_vfsops.c revision 1.3.2.3
1 1.3.2.3 yamt /* $NetBSD: chfs_vfsops.c,v 1.3.2.3 2012/05/23 10:08:18 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 1.3.2.3 yamt ump = kmem_zalloc(sizeof(struct ufsmount), KM_SLEEP); 259 1.3.2.3 yamt 260 1.3.2.2 yamt ump->um_fstype = UFS1; 261 1.3.2.2 yamt //ump->um_ops = &chfs_ufsops; 262 1.3.2.3 yamt ump->um_chfs = kmem_zalloc(sizeof(struct chfs_mount), KM_SLEEP); 263 1.3.2.2 yamt mutex_init(&ump->um_lock, MUTEX_DEFAULT, IPL_NONE); 264 1.3.2.2 yamt 265 1.3.2.2 yamt /* Get superblock and set flash device number */ 266 1.3.2.2 yamt chmp = ump->um_chfs; 267 1.3.2.2 yamt 268 1.3.2.2 yamt chmp->chm_ebh = kmem_alloc(sizeof(struct chfs_ebh), KM_SLEEP); 269 1.3.2.2 yamt 270 1.3.2.2 yamt dbg("[]opening flash: %u\n", (unsigned int)devvp->v_rdev); 271 1.3.2.2 yamt err = ebh_open(chmp->chm_ebh, devvp->v_rdev); 272 1.3.2.2 yamt if (err) { 273 1.3.2.2 yamt dbg("error while opening flash\n"); 274 1.3.2.3 yamt goto fail; 275 1.3.2.2 yamt } 276 1.3.2.2 yamt 277 1.3.2.2 yamt //TODO check flash sizes 278 1.3.2.2 yamt 279 1.3.2.2 yamt chmp->chm_gbl_version = 0; 280 1.3.2.2 yamt chmp->chm_vnocache_hash = chfs_vnocache_hash_init(); 281 1.3.2.2 yamt 282 1.3.2.2 yamt chmp->chm_blocks = kmem_zalloc(chmp->chm_ebh->peb_nr * 283 1.3.2.2 yamt sizeof(struct chfs_eraseblock), KM_SLEEP); 284 1.3.2.2 yamt 285 1.3.2.2 yamt mutex_init(&chmp->chm_lock_mountfields, MUTEX_DEFAULT, IPL_NONE); 286 1.3.2.2 yamt mutex_init(&chmp->chm_lock_sizes, MUTEX_DEFAULT, IPL_NONE); 287 1.3.2.2 yamt mutex_init(&chmp->chm_lock_vnocache, MUTEX_DEFAULT, IPL_NONE); 288 1.3.2.2 yamt 289 1.3.2.2 yamt //XXX 290 1.3.2.2 yamt chmp->chm_fs_bmask = -4096; 291 1.3.2.2 yamt chmp->chm_fs_bsize = 4096; 292 1.3.2.2 yamt chmp->chm_fs_qbmask = 4095; 293 1.3.2.2 yamt chmp->chm_fs_bshift = 12; 294 1.3.2.2 yamt chmp->chm_fs_fmask = -2048; 295 1.3.2.2 yamt chmp->chm_fs_qfmask = 2047; 296 1.3.2.2 yamt 297 1.3.2.2 yamt chmp->chm_wbuf_pagesize = chmp->chm_ebh->flash_if->page_size; 298 1.3.2.2 yamt dbg("wbuf size: %zu\n", chmp->chm_wbuf_pagesize); 299 1.3.2.2 yamt chmp->chm_wbuf = kmem_alloc(chmp->chm_wbuf_pagesize, KM_SLEEP); 300 1.3.2.2 yamt rw_init(&chmp->chm_lock_wbuf); 301 1.3.2.2 yamt 302 1.3.2.2 yamt //init queues 303 1.3.2.2 yamt TAILQ_INIT(&chmp->chm_free_queue); 304 1.3.2.2 yamt TAILQ_INIT(&chmp->chm_clean_queue); 305 1.3.2.2 yamt TAILQ_INIT(&chmp->chm_dirty_queue); 306 1.3.2.2 yamt TAILQ_INIT(&chmp->chm_very_dirty_queue); 307 1.3.2.2 yamt TAILQ_INIT(&chmp->chm_erasable_pending_wbuf_queue); 308 1.3.2.2 yamt TAILQ_INIT(&chmp->chm_erase_pending_queue); 309 1.3.2.2 yamt 310 1.3.2.2 yamt chfs_calc_trigger_levels(chmp); 311 1.3.2.2 yamt 312 1.3.2.2 yamt chmp->chm_nr_free_blocks = 0; 313 1.3.2.2 yamt chmp->chm_nr_erasable_blocks = 0; 314 1.3.2.2 yamt chmp->chm_max_vno = 2; 315 1.3.2.2 yamt chmp->chm_checked_vno = 2; 316 1.3.2.2 yamt chmp->chm_unchecked_size = 0; 317 1.3.2.2 yamt chmp->chm_used_size = 0; 318 1.3.2.2 yamt chmp->chm_dirty_size = 0; 319 1.3.2.2 yamt chmp->chm_wasted_size = 0; 320 1.3.2.2 yamt chmp->chm_free_size = chmp->chm_ebh->eb_size * chmp->chm_ebh->peb_nr; 321 1.3.2.2 yamt err = chfs_build_filesystem(chmp); 322 1.3.2.2 yamt 323 1.3.2.2 yamt if (err) { 324 1.3.2.2 yamt chfs_vnocache_hash_destroy(chmp->chm_vnocache_hash); 325 1.3.2.2 yamt ebh_close(chmp->chm_ebh); 326 1.3.2.3 yamt err = EIO; 327 1.3.2.3 yamt goto fail; 328 1.3.2.2 yamt } 329 1.3.2.2 yamt 330 1.3.2.2 yamt mp->mnt_data = ump; 331 1.3.2.2 yamt mp->mnt_stat.f_fsidx.__fsid_val[0] = (long)dev; 332 1.3.2.2 yamt mp->mnt_stat.f_fsidx.__fsid_val[1] = makefstype(MOUNT_CHFS); 333 1.3.2.2 yamt mp->mnt_stat.f_fsid = mp->mnt_stat.f_fsidx.__fsid_val[0]; 334 1.3.2.2 yamt mp->mnt_stat.f_namemax = MAXNAMLEN; 335 1.3.2.2 yamt mp->mnt_flag |= MNT_LOCAL; 336 1.3.2.2 yamt mp->mnt_fs_bshift = PAGE_SHIFT; 337 1.3.2.2 yamt mp->mnt_dev_bshift = DEV_BSHIFT; 338 1.3.2.2 yamt mp->mnt_iflag |= IMNT_MPSAFE; 339 1.3.2.2 yamt ump->um_flags = 0; 340 1.3.2.2 yamt ump->um_mountp = mp; 341 1.3.2.2 yamt ump->um_dev = dev; 342 1.3.2.2 yamt ump->um_devvp = devvp; 343 1.3.2.2 yamt ump->um_maxfilesize = 1048512 * 1024; 344 1.3.2.2 yamt /*TODO fill these fields 345 1.3.2.2 yamt ump->um_nindir = 346 1.3.2.2 yamt ump->um_lognindir = 347 1.3.2.2 yamt ump->um_bptrtodb = 348 1.3.2.2 yamt ump->um_seqinc = 349 1.3.2.2 yamt ump->um_maxsymlinklen = 350 1.3.2.2 yamt ump->um_dirblksiz = 351 1.3.2.2 yamt ump->um_maxfilesize = 352 1.3.2.2 yamt */ 353 1.3.2.2 yamt 354 1.3.2.2 yamt /* 355 1.3.2.2 yamt * Allocate the root vnode. 356 1.3.2.2 yamt */ 357 1.3.2.2 yamt err = VFS_VGET(mp, CHFS_ROOTINO, &vp); 358 1.3.2.2 yamt if (err) { 359 1.3.2.2 yamt dbg("error: %d while allocating root node\n", err); 360 1.3.2.2 yamt return err; 361 1.3.2.2 yamt } 362 1.3.2.2 yamt vput(vp); 363 1.3.2.2 yamt 364 1.3.2.2 yamt chfs_gc_thread_start(chmp); 365 1.3.2.2 yamt mutex_enter(&chmp->chm_lock_mountfields); 366 1.3.2.2 yamt chfs_gc_trigger(chmp); 367 1.3.2.2 yamt mutex_exit(&chmp->chm_lock_mountfields); 368 1.3.2.2 yamt 369 1.3.2.2 yamt devvp->v_specmountpoint = mp; 370 1.3.2.2 yamt return 0; 371 1.3.2.3 yamt fail: 372 1.3.2.3 yamt kmem_free(chmp->chm_ebh, sizeof(struct chfs_ebh)); 373 1.3.2.3 yamt kmem_free(chmp, sizeof(struct chfs_mount)); 374 1.3.2.3 yamt kmem_free(ump, sizeof(struct ufsmount)); 375 1.3.2.3 yamt return err; 376 1.3.2.2 yamt } 377 1.3.2.2 yamt 378 1.3.2.2 yamt /* --------------------------------------------------------------------- */ 379 1.3.2.2 yamt 380 1.3.2.2 yamt /* ARGSUSED2 */ 381 1.3.2.2 yamt static int 382 1.3.2.2 yamt chfs_unmount(struct mount *mp, int mntflags) 383 1.3.2.2 yamt { 384 1.3.2.2 yamt int flags = 0, i = 0; 385 1.3.2.2 yamt struct ufsmount *ump; 386 1.3.2.2 yamt struct chfs_mount *chmp; 387 1.3.2.2 yamt // struct chfs_vnode_cache *vc, *next; 388 1.3.2.2 yamt 389 1.3.2.2 yamt if (mntflags & MNT_FORCE) 390 1.3.2.2 yamt flags |= FORCECLOSE; 391 1.3.2.2 yamt 392 1.3.2.2 yamt dbg("[START]\n"); 393 1.3.2.2 yamt 394 1.3.2.2 yamt ump = VFSTOUFS(mp); 395 1.3.2.2 yamt chmp = ump->um_chfs; 396 1.3.2.2 yamt 397 1.3.2.2 yamt chfs_gc_thread_stop(chmp); 398 1.3.2.2 yamt 399 1.3.2.2 yamt (void)vflush(mp, NULLVP, flags); 400 1.3.2.2 yamt 401 1.3.2.2 yamt if (chmp->chm_wbuf_len) { 402 1.3.2.2 yamt mutex_enter(&chmp->chm_lock_mountfields); 403 1.3.2.2 yamt chfs_flush_pending_wbuf(chmp); 404 1.3.2.2 yamt mutex_exit(&chmp->chm_lock_mountfields); 405 1.3.2.2 yamt } 406 1.3.2.2 yamt 407 1.3.2.2 yamt for (i = 0; i < chmp->chm_ebh->peb_nr; i++) { 408 1.3.2.2 yamt chfs_free_node_refs(&chmp->chm_blocks[i]); 409 1.3.2.2 yamt } 410 1.3.2.2 yamt 411 1.3.2.2 yamt chfs_vnocache_hash_destroy(chmp->chm_vnocache_hash); 412 1.3.2.2 yamt 413 1.3.2.2 yamt ebh_close(chmp->chm_ebh); 414 1.3.2.2 yamt 415 1.3.2.2 yamt rw_destroy(&chmp->chm_lock_wbuf); 416 1.3.2.2 yamt mutex_destroy(&chmp->chm_lock_vnocache); 417 1.3.2.2 yamt mutex_destroy(&chmp->chm_lock_sizes); 418 1.3.2.2 yamt mutex_destroy(&chmp->chm_lock_mountfields); 419 1.3.2.2 yamt 420 1.3.2.2 yamt if (ump->um_devvp->v_type != VBAD) { 421 1.3.2.2 yamt ump->um_devvp->v_specmountpoint = NULL; 422 1.3.2.2 yamt } 423 1.3.2.2 yamt vn_lock(ump->um_devvp, LK_EXCLUSIVE | LK_RETRY); 424 1.3.2.2 yamt (void)VOP_CLOSE(ump->um_devvp, FREAD|FWRITE, NOCRED); 425 1.3.2.2 yamt vput(ump->um_devvp); 426 1.3.2.2 yamt 427 1.3.2.2 yamt mutex_destroy(&ump->um_lock); 428 1.3.2.2 yamt 429 1.3.2.3 yamt //kmem_free(ump->um_chfs, sizeof(struct chfs_mount)); 430 1.3.2.3 yamt kmem_free(ump, sizeof(struct ufsmount)); 431 1.3.2.2 yamt mp->mnt_data = NULL; 432 1.3.2.2 yamt mp->mnt_flag &= ~MNT_LOCAL; 433 1.3.2.2 yamt dbg("[END]\n"); 434 1.3.2.2 yamt return (0); 435 1.3.2.2 yamt } 436 1.3.2.2 yamt 437 1.3.2.2 yamt /* --------------------------------------------------------------------- */ 438 1.3.2.2 yamt 439 1.3.2.2 yamt static int 440 1.3.2.2 yamt chfs_root(struct mount *mp, struct vnode **vpp) 441 1.3.2.2 yamt { 442 1.3.2.2 yamt struct vnode *vp; 443 1.3.2.2 yamt int error; 444 1.3.2.2 yamt 445 1.3.2.2 yamt if ((error = VFS_VGET(mp, (ino_t)ROOTINO, &vp)) != 0) 446 1.3.2.2 yamt return error; 447 1.3.2.2 yamt *vpp = vp; 448 1.3.2.2 yamt return 0; 449 1.3.2.2 yamt } 450 1.3.2.2 yamt 451 1.3.2.2 yamt /* --------------------------------------------------------------------- */ 452 1.3.2.2 yamt 453 1.3.2.2 yamt extern rb_tree_ops_t frag_rbtree_ops; 454 1.3.2.2 yamt 455 1.3.2.2 yamt static int 456 1.3.2.2 yamt chfs_vget(struct mount *mp, ino_t ino, struct vnode **vpp) 457 1.3.2.2 yamt { 458 1.3.2.2 yamt struct chfs_mount *chmp; 459 1.3.2.2 yamt struct chfs_inode *ip; 460 1.3.2.2 yamt struct ufsmount *ump; 461 1.3.2.2 yamt struct vnode *vp; 462 1.3.2.2 yamt dev_t dev; 463 1.3.2.2 yamt int error; 464 1.3.2.2 yamt struct chfs_vnode_cache* chvc = NULL; 465 1.3.2.2 yamt struct chfs_node_ref* nref = NULL; 466 1.3.2.2 yamt struct buf *bp; 467 1.3.2.2 yamt 468 1.3.2.2 yamt dbg("vget() | ino: %llu\n", (unsigned long long)ino); 469 1.3.2.2 yamt 470 1.3.2.2 yamt ump = VFSTOUFS(mp); 471 1.3.2.2 yamt dev = ump->um_dev; 472 1.3.2.2 yamt retry: 473 1.3.2.2 yamt if (!vpp) { 474 1.3.2.2 yamt vpp = kmem_alloc(sizeof(struct vnode*), KM_SLEEP); 475 1.3.2.2 yamt } 476 1.3.2.2 yamt 477 1.3.2.2 yamt if ((*vpp = chfs_ihashget(dev, ino, LK_EXCLUSIVE)) != NULL) { 478 1.3.2.2 yamt return 0; 479 1.3.2.2 yamt } 480 1.3.2.2 yamt 481 1.3.2.2 yamt /* Allocate a new vnode/inode. */ 482 1.3.2.2 yamt if ((error = getnewvnode(VT_CHFS, 483 1.3.2.2 yamt mp, chfs_vnodeop_p, NULL, &vp)) != 0) { 484 1.3.2.2 yamt *vpp = NULL; 485 1.3.2.2 yamt return (error); 486 1.3.2.2 yamt } 487 1.3.2.2 yamt ip = pool_get(&chfs_inode_pool, PR_WAITOK); 488 1.3.2.2 yamt 489 1.3.2.2 yamt mutex_enter(&chfs_hashlock); 490 1.3.2.2 yamt if ((*vpp = chfs_ihashget(dev, ino, LK_EXCLUSIVE)) != NULL) { 491 1.3.2.2 yamt mutex_exit(&chfs_hashlock); 492 1.3.2.2 yamt ungetnewvnode(vp); 493 1.3.2.2 yamt pool_put(&chfs_inode_pool, ip); 494 1.3.2.2 yamt goto retry; 495 1.3.2.2 yamt } 496 1.3.2.2 yamt 497 1.3.2.2 yamt vp->v_vflag |= VV_LOCKSWORK; 498 1.3.2.2 yamt 499 1.3.2.2 yamt memset(ip, 0, sizeof(*ip)); 500 1.3.2.2 yamt vp->v_data = ip; 501 1.3.2.2 yamt ip->vp = vp; 502 1.3.2.2 yamt ip->ch_type = VTTOCHT(vp->v_type); 503 1.3.2.2 yamt ip->ump = ump; 504 1.3.2.2 yamt ip->chmp = chmp = ump->um_chfs; 505 1.3.2.2 yamt ip->dev = dev; 506 1.3.2.2 yamt ip->ino = ino; 507 1.3.2.2 yamt vp->v_mount = mp; 508 1.3.2.2 yamt genfs_node_init(vp, &chfs_genfsops); 509 1.3.2.2 yamt 510 1.3.2.2 yamt rb_tree_init(&ip->fragtree, &frag_rbtree_ops); 511 1.3.2.2 yamt //mutex_init(&ip->inode_lock, MUTEX_DEFAULT, IPL_NONE); 512 1.3.2.2 yamt 513 1.3.2.2 yamt chfs_ihashins(ip); 514 1.3.2.2 yamt mutex_exit(&chfs_hashlock); 515 1.3.2.2 yamt 516 1.3.2.2 yamt // set root inode 517 1.3.2.2 yamt if (ino == CHFS_ROOTINO) { 518 1.3.2.2 yamt dbg("SETROOT\n"); 519 1.3.2.2 yamt vp->v_vflag |= VV_ROOT; 520 1.3.2.2 yamt vp->v_type = VDIR; 521 1.3.2.2 yamt ip->ch_type = CHT_DIR; 522 1.3.2.2 yamt ip->mode = IFMT | IEXEC | IWRITE | IREAD; 523 1.3.2.2 yamt ip->iflag |= (IN_ACCESS | IN_CHANGE | IN_UPDATE); 524 1.3.2.2 yamt chfs_update(vp, NULL, NULL, UPDATE_WAIT); 525 1.3.2.2 yamt // ip->dents = NULL; XXXTAILQ 526 1.3.2.2 yamt TAILQ_INIT(&ip->dents); 527 1.3.2.2 yamt chfs_set_vnode_size(vp, 512); 528 1.3.2.2 yamt } 529 1.3.2.2 yamt 530 1.3.2.2 yamt // set vnode cache 531 1.3.2.2 yamt mutex_enter(&chmp->chm_lock_vnocache); 532 1.3.2.2 yamt chvc = chfs_vnode_cache_get(chmp, ino); 533 1.3.2.2 yamt mutex_exit(&chmp->chm_lock_vnocache); 534 1.3.2.2 yamt if (!chvc) { 535 1.3.2.2 yamt dbg("!chvc\n"); 536 1.3.2.2 yamt /* XXX, we cant alloc under a lock, refactor this! */ 537 1.3.2.2 yamt chvc = chfs_vnode_cache_alloc(ino); 538 1.3.2.2 yamt mutex_enter(&chmp->chm_lock_vnocache); 539 1.3.2.2 yamt if (ino == CHFS_ROOTINO) { 540 1.3.2.2 yamt chvc->nlink = 2; 541 1.3.2.2 yamt chvc->pvno = CHFS_ROOTINO; 542 1.3.2.2 yamt chfs_vnode_cache_set_state(chmp, 543 1.3.2.2 yamt chvc, VNO_STATE_CHECKEDABSENT); 544 1.3.2.2 yamt } 545 1.3.2.2 yamt chfs_vnode_cache_add(chmp, chvc); 546 1.3.2.2 yamt mutex_exit(&chmp->chm_lock_vnocache); 547 1.3.2.2 yamt 548 1.3.2.2 yamt ip->chvc = chvc; 549 1.3.2.2 yamt TAILQ_INIT(&ip->dents); 550 1.3.2.2 yamt } else { 551 1.3.2.2 yamt dbg("chvc\n"); 552 1.3.2.2 yamt ip->chvc = chvc; 553 1.3.2.2 yamt // if we have a vnode cache, the node is already on flash, so read it 554 1.3.2.2 yamt if (ino == CHFS_ROOTINO) { 555 1.3.2.2 yamt chvc->pvno = CHFS_ROOTINO; 556 1.3.2.2 yamt TAILQ_INIT(&chvc->scan_dirents); 557 1.3.2.2 yamt } else { 558 1.3.2.2 yamt chfs_readvnode(mp, ino, &vp); 559 1.3.2.2 yamt } 560 1.3.2.2 yamt 561 1.3.2.2 yamt mutex_enter(&chmp->chm_lock_mountfields); 562 1.3.2.2 yamt // init type specific things 563 1.3.2.2 yamt switch (ip->ch_type) { 564 1.3.2.2 yamt case CHT_DIR: 565 1.3.2.2 yamt nref = chvc->dirents; 566 1.3.2.2 yamt while (nref && 567 1.3.2.2 yamt (struct chfs_vnode_cache *)nref != chvc) { 568 1.3.2.2 yamt chfs_readdirent(mp, nref, ip); 569 1.3.2.2 yamt nref = nref->nref_next; 570 1.3.2.2 yamt } 571 1.3.2.2 yamt chfs_set_vnode_size(vp, 512); 572 1.3.2.2 yamt break; 573 1.3.2.2 yamt case CHT_REG: 574 1.3.2.2 yamt case CHT_SOCK: 575 1.3.2.2 yamt //build the fragtree of the vnode 576 1.3.2.2 yamt dbg("read_inode_internal | ino: %llu\n", 577 1.3.2.2 yamt (unsigned long long)ip->ino); 578 1.3.2.2 yamt error = chfs_read_inode(chmp, ip); 579 1.3.2.2 yamt if (error) { 580 1.3.2.2 yamt vput(vp); 581 1.3.2.2 yamt *vpp = NULL; 582 1.3.2.2 yamt mutex_exit(&chmp->chm_lock_mountfields); 583 1.3.2.2 yamt return (error); 584 1.3.2.2 yamt } 585 1.3.2.2 yamt break; 586 1.3.2.2 yamt case CHT_LNK: 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_internal(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 598 1.3.2.2 yamt dbg("size: %llu\n", (unsigned long long)ip->size); 599 1.3.2.2 yamt bp = getiobuf(vp, true); 600 1.3.2.2 yamt bp->b_blkno = 0; 601 1.3.2.2 yamt bp->b_bufsize = bp->b_resid = 602 1.3.2.2 yamt bp->b_bcount = ip->size; 603 1.3.2.2 yamt bp->b_data = kmem_alloc(ip->size, KM_SLEEP); 604 1.3.2.2 yamt chfs_read_data(chmp, vp, bp); 605 1.3.2.2 yamt if (!ip->target) 606 1.3.2.2 yamt ip->target = kmem_alloc(ip->size, 607 1.3.2.2 yamt KM_SLEEP); 608 1.3.2.2 yamt memcpy(ip->target, bp->b_data, ip->size); 609 1.3.2.2 yamt kmem_free(bp->b_data, ip->size); 610 1.3.2.2 yamt putiobuf(bp); 611 1.3.2.2 yamt 612 1.3.2.2 yamt break; 613 1.3.2.2 yamt case CHT_CHR: 614 1.3.2.2 yamt case CHT_BLK: 615 1.3.2.2 yamt case CHT_FIFO: 616 1.3.2.2 yamt //build the fragtree of the vnode 617 1.3.2.2 yamt dbg("read_inode_internal | ino: %llu\n", 618 1.3.2.2 yamt (unsigned long long)ip->ino); 619 1.3.2.2 yamt error = chfs_read_inode_internal(chmp, ip); 620 1.3.2.2 yamt if (error) { 621 1.3.2.2 yamt vput(vp); 622 1.3.2.2 yamt *vpp = NULL; 623 1.3.2.2 yamt mutex_exit(&chmp->chm_lock_mountfields); 624 1.3.2.2 yamt return (error); 625 1.3.2.2 yamt } 626 1.3.2.2 yamt 627 1.3.2.2 yamt bp = getiobuf(vp, true); 628 1.3.2.2 yamt bp->b_blkno = 0; 629 1.3.2.2 yamt bp->b_bufsize = bp->b_resid = 630 1.3.2.2 yamt bp->b_bcount = sizeof(dev_t); 631 1.3.2.2 yamt bp->b_data = kmem_alloc(sizeof(dev_t), KM_SLEEP); 632 1.3.2.2 yamt chfs_read_data(chmp, vp, bp); 633 1.3.2.2 yamt memcpy(&ip->rdev, 634 1.3.2.2 yamt bp->b_data, sizeof(dev_t)); 635 1.3.2.2 yamt kmem_free(bp->b_data, sizeof(dev_t)); 636 1.3.2.2 yamt putiobuf(bp); 637 1.3.2.2 yamt if (ip->ch_type == CHT_FIFO) { 638 1.3.2.2 yamt vp->v_op = chfs_fifoop_p; 639 1.3.2.2 yamt } else { 640 1.3.2.2 yamt vp->v_op = chfs_specop_p; 641 1.3.2.2 yamt spec_node_init(vp, ip->rdev); 642 1.3.2.2 yamt } 643 1.3.2.2 yamt 644 1.3.2.2 yamt break; 645 1.3.2.2 yamt case CHT_BLANK: 646 1.3.2.2 yamt case CHT_BAD: 647 1.3.2.2 yamt break; 648 1.3.2.2 yamt } 649 1.3.2.2 yamt mutex_exit(&chmp->chm_lock_mountfields); 650 1.3.2.2 yamt 651 1.3.2.2 yamt } 652 1.3.2.2 yamt 653 1.3.2.2 yamt /* finish inode initalization */ 654 1.3.2.2 yamt ip->devvp = ump->um_devvp; 655 1.3.2.2 yamt vref(ip->devvp); 656 1.3.2.2 yamt 657 1.3.2.2 yamt uvm_vnp_setsize(vp, ip->size); 658 1.3.2.2 yamt *vpp = vp; 659 1.3.2.2 yamt 660 1.3.2.2 yamt return 0; 661 1.3.2.2 yamt } 662 1.3.2.2 yamt 663 1.3.2.2 yamt /* --------------------------------------------------------------------- */ 664 1.3.2.2 yamt 665 1.3.2.2 yamt static int 666 1.3.2.2 yamt chfs_fhtovp(struct mount *mp, struct fid *fhp, struct vnode **vpp) 667 1.3.2.2 yamt { 668 1.3.2.2 yamt return ENODEV; 669 1.3.2.2 yamt } 670 1.3.2.2 yamt 671 1.3.2.2 yamt /* --------------------------------------------------------------------- */ 672 1.3.2.2 yamt 673 1.3.2.2 yamt static int 674 1.3.2.2 yamt chfs_vptofh(struct vnode *vp, struct fid *fhp, size_t *fh_size) 675 1.3.2.2 yamt { 676 1.3.2.2 yamt return ENODEV; 677 1.3.2.2 yamt } 678 1.3.2.2 yamt 679 1.3.2.2 yamt /* --------------------------------------------------------------------- */ 680 1.3.2.2 yamt 681 1.3.2.2 yamt static int 682 1.3.2.2 yamt chfs_start(struct mount *mp, int flags) 683 1.3.2.2 yamt { 684 1.3.2.2 yamt return 0; 685 1.3.2.2 yamt } 686 1.3.2.2 yamt 687 1.3.2.2 yamt /* --------------------------------------------------------------------- */ 688 1.3.2.2 yamt 689 1.3.2.2 yamt /* ARGSUSED2 */ 690 1.3.2.2 yamt static int 691 1.3.2.2 yamt chfs_statvfs(struct mount *mp, struct statvfs *sbp) 692 1.3.2.2 yamt { 693 1.3.2.2 yamt struct chfs_mount *chmp; 694 1.3.2.2 yamt struct ufsmount *ump; 695 1.3.2.2 yamt dbg("statvfs\n"); 696 1.3.2.2 yamt 697 1.3.2.2 yamt ump = VFSTOUFS(mp); 698 1.3.2.2 yamt chmp = ump->um_chfs; 699 1.3.2.2 yamt 700 1.3.2.2 yamt sbp->f_flag = mp->mnt_flag; 701 1.3.2.2 yamt sbp->f_bsize = chmp->chm_ebh->eb_size; 702 1.3.2.2 yamt sbp->f_frsize = chmp->chm_ebh->eb_size; 703 1.3.2.2 yamt sbp->f_iosize = chmp->chm_ebh->eb_size; 704 1.3.2.2 yamt 705 1.3.2.2 yamt sbp->f_blocks = chmp->chm_ebh->peb_nr; 706 1.3.2.2 yamt sbp->f_files = 0; 707 1.3.2.2 yamt sbp->f_bavail = chmp->chm_nr_free_blocks - chmp->chm_resv_blocks_write; 708 1.3.2.2 yamt #if 0 709 1.3.2.2 yamt printf("chmp->chm_nr_free_blocks: %jd\n", 710 1.3.2.2 yamt (intmax_t )chmp->chm_nr_free_blocks); 711 1.3.2.2 yamt printf("chmp->chm_resv_blocks_write: %jd\n", 712 1.3.2.2 yamt (intmax_t) chmp->chm_resv_blocks_write); 713 1.3.2.2 yamt printf("chmp->chm_ebh->peb_nr: %jd\n", 714 1.3.2.2 yamt (intmax_t) chmp->chm_ebh->peb_nr); 715 1.3.2.2 yamt #endif 716 1.3.2.2 yamt 717 1.3.2.2 yamt sbp->f_bfree = chmp->chm_nr_free_blocks; 718 1.3.2.2 yamt sbp->f_bresvd = chmp->chm_resv_blocks_write; 719 1.3.2.2 yamt 720 1.3.2.2 yamt /* FFS specific */ 721 1.3.2.2 yamt sbp->f_ffree = 0; 722 1.3.2.2 yamt sbp->f_favail = 0; 723 1.3.2.2 yamt sbp->f_fresvd = 0; 724 1.3.2.2 yamt 725 1.3.2.2 yamt copy_statvfs_info(sbp, mp); 726 1.3.2.2 yamt 727 1.3.2.2 yamt return 0; 728 1.3.2.2 yamt } 729 1.3.2.2 yamt 730 1.3.2.2 yamt /* --------------------------------------------------------------------- */ 731 1.3.2.2 yamt 732 1.3.2.2 yamt /* ARGSUSED0 */ 733 1.3.2.2 yamt static int 734 1.3.2.2 yamt chfs_sync(struct mount *mp, int waitfor, 735 1.3.2.2 yamt kauth_cred_t uc) 736 1.3.2.2 yamt { 737 1.3.2.2 yamt return 0; 738 1.3.2.2 yamt } 739 1.3.2.2 yamt 740 1.3.2.2 yamt /* --------------------------------------------------------------------- */ 741 1.3.2.2 yamt 742 1.3.2.2 yamt static void 743 1.3.2.2 yamt chfs_init(void) 744 1.3.2.2 yamt { 745 1.3.2.2 yamt chfs_alloc_pool_caches(); 746 1.3.2.2 yamt chfs_ihashinit(); 747 1.3.2.2 yamt pool_init(&chfs_inode_pool, sizeof(struct chfs_inode), 0, 0, 0, 748 1.3.2.2 yamt "chfsinopl", &pool_allocator_nointr, IPL_NONE); 749 1.3.2.2 yamt ufs_init(); 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_reinit(void) 756 1.3.2.2 yamt { 757 1.3.2.2 yamt chfs_ihashreinit(); 758 1.3.2.2 yamt ufs_reinit(); 759 1.3.2.2 yamt } 760 1.3.2.2 yamt 761 1.3.2.2 yamt /* --------------------------------------------------------------------- */ 762 1.3.2.2 yamt 763 1.3.2.2 yamt static void 764 1.3.2.2 yamt chfs_done(void) 765 1.3.2.2 yamt { 766 1.3.2.2 yamt ufs_done(); 767 1.3.2.2 yamt chfs_ihashdone(); 768 1.3.2.2 yamt pool_destroy(&chfs_inode_pool); 769 1.3.2.2 yamt chfs_destroy_pool_caches(); 770 1.3.2.2 yamt } 771 1.3.2.2 yamt 772 1.3.2.2 yamt /* --------------------------------------------------------------------- */ 773 1.3.2.2 yamt 774 1.3.2.2 yamt static int 775 1.3.2.2 yamt chfs_snapshot(struct mount *mp, struct vnode *vp, 776 1.3.2.2 yamt struct timespec *ctime) 777 1.3.2.2 yamt { 778 1.3.2.2 yamt return ENODEV; 779 1.3.2.2 yamt } 780 1.3.2.2 yamt 781 1.3.2.2 yamt /* --------------------------------------------------------------------- */ 782 1.3.2.2 yamt 783 1.3.2.2 yamt /* 784 1.3.2.2 yamt * chfs vfs operations. 785 1.3.2.2 yamt */ 786 1.3.2.2 yamt 787 1.3.2.2 yamt extern const struct vnodeopv_desc chfs_fifoop_opv_desc; 788 1.3.2.2 yamt extern const struct vnodeopv_desc chfs_specop_opv_desc; 789 1.3.2.2 yamt extern const struct vnodeopv_desc chfs_vnodeop_opv_desc; 790 1.3.2.2 yamt 791 1.3.2.2 yamt const struct vnodeopv_desc * const chfs_vnodeopv_descs[] = { 792 1.3.2.2 yamt &chfs_fifoop_opv_desc, 793 1.3.2.2 yamt &chfs_specop_opv_desc, 794 1.3.2.2 yamt &chfs_vnodeop_opv_desc, 795 1.3.2.2 yamt NULL, 796 1.3.2.2 yamt }; 797 1.3.2.2 yamt 798 1.3.2.2 yamt struct vfsops chfs_vfsops = { 799 1.3.2.2 yamt MOUNT_CHFS, /* vfs_name */ 800 1.3.2.2 yamt sizeof (struct chfs_args), 801 1.3.2.2 yamt chfs_mount, /* vfs_mount */ 802 1.3.2.2 yamt chfs_start, /* vfs_start */ 803 1.3.2.2 yamt chfs_unmount, /* vfs_unmount */ 804 1.3.2.2 yamt chfs_root, /* vfs_root */ 805 1.3.2.2 yamt ufs_quotactl, /* vfs_quotactl */ 806 1.3.2.2 yamt chfs_statvfs, /* vfs_statvfs */ 807 1.3.2.2 yamt chfs_sync, /* vfs_sync */ 808 1.3.2.2 yamt chfs_vget, /* vfs_vget */ 809 1.3.2.2 yamt chfs_fhtovp, /* vfs_fhtovp */ 810 1.3.2.2 yamt chfs_vptofh, /* vfs_vptofh */ 811 1.3.2.2 yamt chfs_init, /* vfs_init */ 812 1.3.2.2 yamt chfs_reinit, /* vfs_reinit */ 813 1.3.2.2 yamt chfs_done, /* vfs_done */ 814 1.3.2.2 yamt NULL, /* vfs_mountroot */ 815 1.3.2.2 yamt chfs_snapshot, /* vfs_snapshot */ 816 1.3.2.2 yamt vfs_stdextattrctl, /* vfs_extattrctl */ 817 1.3.2.2 yamt (void *)eopnotsupp, /* vfs_suspendctl */ 818 1.3.2.2 yamt genfs_renamelock_enter, 819 1.3.2.2 yamt genfs_renamelock_exit, 820 1.3.2.2 yamt (void *)eopnotsupp, 821 1.3.2.2 yamt chfs_vnodeopv_descs, 822 1.3.2.2 yamt 0, /* vfs_refcount */ 823 1.3.2.2 yamt { NULL, NULL }, 824 1.3.2.2 yamt }; 825 1.3.2.2 yamt 826 1.3.2.2 yamt static int 827 1.3.2.2 yamt chfs_modcmd(modcmd_t cmd, void *arg) 828 1.3.2.2 yamt { 829 1.3.2.2 yamt switch (cmd) { 830 1.3.2.2 yamt case MODULE_CMD_INIT: 831 1.3.2.2 yamt return vfs_attach(&chfs_vfsops); 832 1.3.2.2 yamt case MODULE_CMD_FINI: 833 1.3.2.2 yamt return vfs_detach(&chfs_vfsops); 834 1.3.2.2 yamt default: 835 1.3.2.2 yamt return ENOTTY; 836 1.3.2.2 yamt } 837 1.3.2.2 yamt } 838
Indexes created Tue Oct 21 16:10:11 GMT 2025