1171802Sdelphij/* $NetBSD: tmpfs_vnops.c,v 1.39 2007/07/23 15:41:01 jmmv Exp $ */ 2170808Sdelphij 3182739Sdelphij/*- 4171802Sdelphij * Copyright (c) 2005, 2006 The NetBSD Foundation, Inc. 5170808Sdelphij * All rights reserved. 6170808Sdelphij * 7170808Sdelphij * This code is derived from software contributed to The NetBSD Foundation 8170808Sdelphij * by Julio M. Merino Vidal, developed as part of Google's Summer of Code 9170808Sdelphij * 2005 program. 10170808Sdelphij * 11170808Sdelphij * Redistribution and use in source and binary forms, with or without 12170808Sdelphij * modification, are permitted provided that the following conditions 13170808Sdelphij * are met: 14170808Sdelphij * 1. Redistributions of source code must retain the above copyright 15170808Sdelphij * notice, this list of conditions and the following disclaimer. 16170808Sdelphij * 2. Redistributions in binary form must reproduce the above copyright 17170808Sdelphij * notice, this list of conditions and the following disclaimer in the 18170808Sdelphij * documentation and/or other materials provided with the distribution. 19170808Sdelphij * 20170808Sdelphij * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 21170808Sdelphij * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 22170808Sdelphij * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 23170808Sdelphij * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 24170808Sdelphij * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25170808Sdelphij * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26170808Sdelphij * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27170808Sdelphij * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28170808Sdelphij * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29170808Sdelphij * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30170808Sdelphij * POSSIBILITY OF SUCH DAMAGE. 31170808Sdelphij */ 32170808Sdelphij 33170808Sdelphij/* 34170808Sdelphij * tmpfs vnode interface. 35170808Sdelphij */ 36170808Sdelphij#include <sys/cdefs.h> 37170808Sdelphij__FBSDID("$FreeBSD: releng/10.3/sys/fs/tmpfs/tmpfs_vnops.c 295897 2016-02-22 20:18:10Z markj $"); 38170808Sdelphij 39170808Sdelphij#include <sys/param.h> 40170808Sdelphij#include <sys/fcntl.h> 41170808Sdelphij#include <sys/lockf.h> 42248084Sattilio#include <sys/lock.h> 43170808Sdelphij#include <sys/namei.h> 44170808Sdelphij#include <sys/priv.h> 45170808Sdelphij#include <sys/proc.h> 46248084Sattilio#include <sys/rwlock.h> 47197850Sdelphij#include <sys/sched.h> 48170808Sdelphij#include <sys/stat.h> 49170808Sdelphij#include <sys/systm.h> 50232960Sgleb#include <sys/sysctl.h> 51170808Sdelphij#include <sys/unistd.h> 52170808Sdelphij#include <sys/vnode.h> 53170808Sdelphij 54170808Sdelphij#include <vm/vm.h> 55239065Skib#include <vm/vm_param.h> 56170808Sdelphij#include <vm/vm_object.h> 57170808Sdelphij#include <vm/vm_page.h> 58170808Sdelphij#include <vm/vm_pager.h> 59188929Salc 60170808Sdelphij#include <fs/tmpfs/tmpfs_vnops.h> 61170808Sdelphij#include <fs/tmpfs/tmpfs.h> 62170808Sdelphij 63232960SglebSYSCTL_DECL(_vfs_tmpfs); 64232960Sgleb 65232960Sglebstatic volatile int tmpfs_rename_restarts; 66232960SglebSYSCTL_INT(_vfs_tmpfs, OID_AUTO, rename_restarts, CTLFLAG_RD, 67232960Sgleb __DEVOLATILE(int *, &tmpfs_rename_restarts), 0, 68232960Sgleb "Times rename had to restart due to lock contention"); 69232960Sgleb 70171069Sdelphijstatic int 71269173Skibtmpfs_vn_get_ino_alloc(struct mount *mp, void *arg, int lkflags, 72269173Skib struct vnode **rvp) 73269173Skib{ 74269173Skib 75269173Skib return (tmpfs_alloc_vp(mp, arg, lkflags, rvp)); 76269173Skib} 77269173Skib 78269173Skibstatic int 79170808Sdelphijtmpfs_lookup(struct vop_cachedlookup_args *v) 80170808Sdelphij{ 81170808Sdelphij struct vnode *dvp = v->a_dvp; 82170808Sdelphij struct vnode **vpp = v->a_vpp; 83170808Sdelphij struct componentname *cnp = v->a_cnp; 84170808Sdelphij struct tmpfs_dirent *de; 85170808Sdelphij struct tmpfs_node *dnode; 86269173Skib int error; 87170808Sdelphij 88170808Sdelphij dnode = VP_TO_TMPFS_DIR(dvp); 89170808Sdelphij *vpp = NULLVP; 90170808Sdelphij 91170808Sdelphij /* Check accessibility of requested node as a first step. */ 92191990Sattilio error = VOP_ACCESS(dvp, VEXEC, cnp->cn_cred, cnp->cn_thread); 93170808Sdelphij if (error != 0) 94170808Sdelphij goto out; 95170808Sdelphij 96170808Sdelphij /* We cannot be requesting the parent directory of the root node. */ 97170808Sdelphij MPASS(IMPLIES(dnode->tn_type == VDIR && 98170808Sdelphij dnode->tn_dir.tn_parent == dnode, 99170808Sdelphij !(cnp->cn_flags & ISDOTDOT))); 100170808Sdelphij 101197953Sdelphij TMPFS_ASSERT_LOCKED(dnode); 102197953Sdelphij if (dnode->tn_dir.tn_parent == NULL) { 103197953Sdelphij error = ENOENT; 104197953Sdelphij goto out; 105197953Sdelphij } 106170808Sdelphij if (cnp->cn_flags & ISDOTDOT) { 107269173Skib error = vn_vget_ino_gen(dvp, tmpfs_vn_get_ino_alloc, 108269173Skib dnode->tn_dir.tn_parent, cnp->cn_lkflags, vpp); 109269173Skib if (error != 0) 110269173Skib goto out; 111170808Sdelphij } else if (cnp->cn_namelen == 1 && cnp->cn_nameptr[0] == '.') { 112170808Sdelphij VREF(dvp); 113170808Sdelphij *vpp = dvp; 114170808Sdelphij error = 0; 115170808Sdelphij } else { 116188318Skib de = tmpfs_dir_lookup(dnode, NULL, cnp); 117211598Sed if (de != NULL && de->td_node == NULL) 118211598Sed cnp->cn_flags |= ISWHITEOUT; 119211598Sed if (de == NULL || de->td_node == NULL) { 120170808Sdelphij /* The entry was not found in the directory. 121170808Sdelphij * This is OK if we are creating or renaming an 122170808Sdelphij * entry and are working on the last component of 123170808Sdelphij * the path name. */ 124170808Sdelphij if ((cnp->cn_flags & ISLASTCN) && 125170808Sdelphij (cnp->cn_nameiop == CREATE || \ 126211598Sed cnp->cn_nameiop == RENAME || 127211598Sed (cnp->cn_nameiop == DELETE && 128211598Sed cnp->cn_flags & DOWHITEOUT && 129211598Sed cnp->cn_flags & ISWHITEOUT))) { 130170808Sdelphij error = VOP_ACCESS(dvp, VWRITE, cnp->cn_cred, 131170808Sdelphij cnp->cn_thread); 132170808Sdelphij if (error != 0) 133170808Sdelphij goto out; 134170808Sdelphij 135170808Sdelphij /* Keep the component name in the buffer for 136170808Sdelphij * future uses. */ 137170808Sdelphij cnp->cn_flags |= SAVENAME; 138170808Sdelphij 139170808Sdelphij error = EJUSTRETURN; 140170808Sdelphij } else 141170808Sdelphij error = ENOENT; 142170808Sdelphij } else { 143170808Sdelphij struct tmpfs_node *tnode; 144170808Sdelphij 145170808Sdelphij /* The entry was found, so get its associated 146170808Sdelphij * tmpfs_node. */ 147170808Sdelphij tnode = de->td_node; 148170808Sdelphij 149170808Sdelphij /* If we are not at the last path component and 150170808Sdelphij * found a non-directory or non-link entry (which 151170808Sdelphij * may itself be pointing to a directory), raise 152170808Sdelphij * an error. */ 153170808Sdelphij if ((tnode->tn_type != VDIR && 154170808Sdelphij tnode->tn_type != VLNK) && 155170808Sdelphij !(cnp->cn_flags & ISLASTCN)) { 156170808Sdelphij error = ENOTDIR; 157170808Sdelphij goto out; 158170808Sdelphij } 159170808Sdelphij 160170808Sdelphij /* If we are deleting or renaming the entry, keep 161170808Sdelphij * track of its tmpfs_dirent so that it can be 162170808Sdelphij * easily deleted later. */ 163170808Sdelphij if ((cnp->cn_flags & ISLASTCN) && 164170808Sdelphij (cnp->cn_nameiop == DELETE || 165170808Sdelphij cnp->cn_nameiop == RENAME)) { 166170808Sdelphij error = VOP_ACCESS(dvp, VWRITE, cnp->cn_cred, 167170808Sdelphij cnp->cn_thread); 168170808Sdelphij if (error != 0) 169170808Sdelphij goto out; 170171070Sdelphij 171170808Sdelphij /* Allocate a new vnode on the matching entry. */ 172171799Sdelphij error = tmpfs_alloc_vp(dvp->v_mount, tnode, 173269172Skib cnp->cn_lkflags, vpp); 174170808Sdelphij if (error != 0) 175170808Sdelphij goto out; 176170808Sdelphij 177170808Sdelphij if ((dnode->tn_mode & S_ISTXT) && 178170808Sdelphij VOP_ACCESS(dvp, VADMIN, cnp->cn_cred, cnp->cn_thread) && 179170808Sdelphij VOP_ACCESS(*vpp, VADMIN, cnp->cn_cred, cnp->cn_thread)) { 180170808Sdelphij error = EPERM; 181170808Sdelphij vput(*vpp); 182170808Sdelphij *vpp = NULL; 183170808Sdelphij goto out; 184171070Sdelphij } 185170808Sdelphij cnp->cn_flags |= SAVENAME; 186171799Sdelphij } else { 187171799Sdelphij error = tmpfs_alloc_vp(dvp->v_mount, tnode, 188269176Skib cnp->cn_lkflags, vpp); 189269176Skib if (error != 0) 190269176Skib goto out; 191170808Sdelphij } 192170808Sdelphij } 193170808Sdelphij } 194170808Sdelphij 195170808Sdelphij /* Store the result of this lookup in the cache. Avoid this if the 196170808Sdelphij * request was for creation, as it does not improve timings on 197170808Sdelphij * emprical tests. */ 198276500Skib if ((cnp->cn_flags & MAKEENTRY) != 0) 199170808Sdelphij cache_enter(dvp, *vpp, cnp); 200170808Sdelphij 201170808Sdelphijout: 202170808Sdelphij /* If there were no errors, *vpp cannot be null and it must be 203170808Sdelphij * locked. */ 204176559Sattilio MPASS(IFF(error == 0, *vpp != NULLVP && VOP_ISLOCKED(*vpp))); 205170808Sdelphij 206170808Sdelphij return error; 207170808Sdelphij} 208170808Sdelphij 209171069Sdelphijstatic int 210170808Sdelphijtmpfs_create(struct vop_create_args *v) 211170808Sdelphij{ 212170808Sdelphij struct vnode *dvp = v->a_dvp; 213170808Sdelphij struct vnode **vpp = v->a_vpp; 214170808Sdelphij struct componentname *cnp = v->a_cnp; 215170808Sdelphij struct vattr *vap = v->a_vap; 216276648Skib int error; 217170808Sdelphij 218170808Sdelphij MPASS(vap->va_type == VREG || vap->va_type == VSOCK); 219170808Sdelphij 220276648Skib error = tmpfs_alloc_file(dvp, vpp, vap, cnp, NULL); 221276648Skib if (error == 0 && (cnp->cn_flags & MAKEENTRY) != 0) 222276648Skib cache_enter(dvp, *vpp, cnp); 223276648Skib return (error); 224170808Sdelphij} 225170808Sdelphij 226171069Sdelphijstatic int 227170808Sdelphijtmpfs_mknod(struct vop_mknod_args *v) 228170808Sdelphij{ 229170808Sdelphij struct vnode *dvp = v->a_dvp; 230170808Sdelphij struct vnode **vpp = v->a_vpp; 231170808Sdelphij struct componentname *cnp = v->a_cnp; 232170808Sdelphij struct vattr *vap = v->a_vap; 233170808Sdelphij 234170808Sdelphij if (vap->va_type != VBLK && vap->va_type != VCHR && 235170808Sdelphij vap->va_type != VFIFO) 236170808Sdelphij return EINVAL; 237170808Sdelphij 238170808Sdelphij return tmpfs_alloc_file(dvp, vpp, vap, cnp, NULL); 239170808Sdelphij} 240170808Sdelphij 241171069Sdelphijstatic int 242170808Sdelphijtmpfs_open(struct vop_open_args *v) 243170808Sdelphij{ 244170808Sdelphij struct vnode *vp = v->a_vp; 245170808Sdelphij int mode = v->a_mode; 246170808Sdelphij 247170808Sdelphij int error; 248170808Sdelphij struct tmpfs_node *node; 249170808Sdelphij 250176559Sattilio MPASS(VOP_ISLOCKED(vp)); 251170808Sdelphij 252170808Sdelphij node = VP_TO_TMPFS_NODE(vp); 253171070Sdelphij 254170808Sdelphij /* The file is still active but all its names have been removed 255170808Sdelphij * (e.g. by a "rmdir $(pwd)"). It cannot be opened any more as 256170808Sdelphij * it is about to die. */ 257170808Sdelphij if (node->tn_links < 1) 258170808Sdelphij return (ENOENT); 259170808Sdelphij 260170808Sdelphij /* If the file is marked append-only, deny write requests. */ 261170808Sdelphij if (node->tn_flags & APPEND && (mode & (FWRITE | O_APPEND)) == FWRITE) 262170808Sdelphij error = EPERM; 263170808Sdelphij else { 264170808Sdelphij error = 0; 265250190Skib /* For regular files, the call below is nop. */ 266269168Skib KASSERT(vp->v_type != VREG || (node->tn_reg.tn_aobj->flags & 267269168Skib OBJ_DEAD) == 0, ("dead object")); 268171070Sdelphij vnode_create_vobject(vp, node->tn_size, v->a_td); 269170808Sdelphij } 270170808Sdelphij 271176559Sattilio MPASS(VOP_ISLOCKED(vp)); 272170808Sdelphij return error; 273170808Sdelphij} 274170808Sdelphij 275171069Sdelphijstatic int 276170808Sdelphijtmpfs_close(struct vop_close_args *v) 277170808Sdelphij{ 278170808Sdelphij struct vnode *vp = v->a_vp; 279170808Sdelphij 280218949Salc /* Update node times. */ 281218949Salc tmpfs_update(vp); 282170808Sdelphij 283218949Salc return (0); 284170808Sdelphij} 285170808Sdelphij 286170808Sdelphijint 287170808Sdelphijtmpfs_access(struct vop_access_args *v) 288170808Sdelphij{ 289170808Sdelphij struct vnode *vp = v->a_vp; 290184413Strasz accmode_t accmode = v->a_accmode; 291170808Sdelphij struct ucred *cred = v->a_cred; 292170808Sdelphij 293170808Sdelphij int error; 294170808Sdelphij struct tmpfs_node *node; 295170808Sdelphij 296176559Sattilio MPASS(VOP_ISLOCKED(vp)); 297170808Sdelphij 298170808Sdelphij node = VP_TO_TMPFS_NODE(vp); 299170808Sdelphij 300170808Sdelphij switch (vp->v_type) { 301170808Sdelphij case VDIR: 302170808Sdelphij /* FALLTHROUGH */ 303170808Sdelphij case VLNK: 304170808Sdelphij /* FALLTHROUGH */ 305170808Sdelphij case VREG: 306184413Strasz if (accmode & VWRITE && vp->v_mount->mnt_flag & MNT_RDONLY) { 307170808Sdelphij error = EROFS; 308170808Sdelphij goto out; 309170808Sdelphij } 310170808Sdelphij break; 311170808Sdelphij 312170808Sdelphij case VBLK: 313170808Sdelphij /* FALLTHROUGH */ 314170808Sdelphij case VCHR: 315170808Sdelphij /* FALLTHROUGH */ 316170808Sdelphij case VSOCK: 317170808Sdelphij /* FALLTHROUGH */ 318170808Sdelphij case VFIFO: 319170808Sdelphij break; 320170808Sdelphij 321170808Sdelphij default: 322170808Sdelphij error = EINVAL; 323170808Sdelphij goto out; 324170808Sdelphij } 325170808Sdelphij 326184413Strasz if (accmode & VWRITE && node->tn_flags & IMMUTABLE) { 327170808Sdelphij error = EPERM; 328170808Sdelphij goto out; 329170808Sdelphij } 330170808Sdelphij 331170808Sdelphij error = vaccess(vp->v_type, node->tn_mode, node->tn_uid, 332184413Strasz node->tn_gid, accmode, cred, NULL); 333170808Sdelphij 334170808Sdelphijout: 335176559Sattilio MPASS(VOP_ISLOCKED(vp)); 336170808Sdelphij 337170808Sdelphij return error; 338170808Sdelphij} 339170808Sdelphij 340170808Sdelphijint 341170808Sdelphijtmpfs_getattr(struct vop_getattr_args *v) 342170808Sdelphij{ 343170808Sdelphij struct vnode *vp = v->a_vp; 344170808Sdelphij struct vattr *vap = v->a_vap; 345170808Sdelphij 346170808Sdelphij struct tmpfs_node *node; 347170808Sdelphij 348170808Sdelphij node = VP_TO_TMPFS_NODE(vp); 349170808Sdelphij 350170808Sdelphij tmpfs_update(vp); 351170808Sdelphij 352170808Sdelphij vap->va_type = vp->v_type; 353170808Sdelphij vap->va_mode = node->tn_mode; 354170808Sdelphij vap->va_nlink = node->tn_links; 355170808Sdelphij vap->va_uid = node->tn_uid; 356170808Sdelphij vap->va_gid = node->tn_gid; 357170808Sdelphij vap->va_fsid = vp->v_mount->mnt_stat.f_fsid.val[0]; 358170808Sdelphij vap->va_fileid = node->tn_id; 359170808Sdelphij vap->va_size = node->tn_size; 360170808Sdelphij vap->va_blocksize = PAGE_SIZE; 361170808Sdelphij vap->va_atime = node->tn_atime; 362170808Sdelphij vap->va_mtime = node->tn_mtime; 363170808Sdelphij vap->va_ctime = node->tn_ctime; 364170808Sdelphij vap->va_birthtime = node->tn_birthtime; 365170808Sdelphij vap->va_gen = node->tn_gen; 366170808Sdelphij vap->va_flags = node->tn_flags; 367170808Sdelphij vap->va_rdev = (vp->v_type == VBLK || vp->v_type == VCHR) ? 368183214Skib node->tn_rdev : NODEV; 369170808Sdelphij vap->va_bytes = round_page(node->tn_size); 370183212Skib vap->va_filerev = 0; 371170808Sdelphij 372170808Sdelphij return 0; 373170808Sdelphij} 374170808Sdelphij 375170808Sdelphijint 376170808Sdelphijtmpfs_setattr(struct vop_setattr_args *v) 377170808Sdelphij{ 378170808Sdelphij struct vnode *vp = v->a_vp; 379170808Sdelphij struct vattr *vap = v->a_vap; 380170808Sdelphij struct ucred *cred = v->a_cred; 381182371Sattilio struct thread *td = curthread; 382170808Sdelphij 383170808Sdelphij int error; 384170808Sdelphij 385176559Sattilio MPASS(VOP_ISLOCKED(vp)); 386170808Sdelphij 387170808Sdelphij error = 0; 388170808Sdelphij 389170808Sdelphij /* Abort if any unsettable attribute is given. */ 390170808Sdelphij if (vap->va_type != VNON || 391170808Sdelphij vap->va_nlink != VNOVAL || 392170808Sdelphij vap->va_fsid != VNOVAL || 393170808Sdelphij vap->va_fileid != VNOVAL || 394170808Sdelphij vap->va_blocksize != VNOVAL || 395170808Sdelphij vap->va_gen != VNOVAL || 396170808Sdelphij vap->va_rdev != VNOVAL || 397170808Sdelphij vap->va_bytes != VNOVAL) 398170808Sdelphij error = EINVAL; 399170808Sdelphij 400170808Sdelphij if (error == 0 && (vap->va_flags != VNOVAL)) 401182371Sattilio error = tmpfs_chflags(vp, vap->va_flags, cred, td); 402170808Sdelphij 403170808Sdelphij if (error == 0 && (vap->va_size != VNOVAL)) 404182371Sattilio error = tmpfs_chsize(vp, vap->va_size, cred, td); 405170808Sdelphij 406170808Sdelphij if (error == 0 && (vap->va_uid != VNOVAL || vap->va_gid != VNOVAL)) 407182371Sattilio error = tmpfs_chown(vp, vap->va_uid, vap->va_gid, cred, td); 408170808Sdelphij 409170808Sdelphij if (error == 0 && (vap->va_mode != (mode_t)VNOVAL)) 410182371Sattilio error = tmpfs_chmod(vp, vap->va_mode, cred, td); 411170808Sdelphij 412170808Sdelphij if (error == 0 && ((vap->va_atime.tv_sec != VNOVAL && 413170808Sdelphij vap->va_atime.tv_nsec != VNOVAL) || 414170808Sdelphij (vap->va_mtime.tv_sec != VNOVAL && 415170808Sdelphij vap->va_mtime.tv_nsec != VNOVAL) || 416170808Sdelphij (vap->va_birthtime.tv_sec != VNOVAL && 417170808Sdelphij vap->va_birthtime.tv_nsec != VNOVAL))) 418267816Skib error = tmpfs_chtimes(vp, vap, cred, td); 419170808Sdelphij 420170808Sdelphij /* Update the node times. We give preference to the error codes 421170808Sdelphij * generated by this function rather than the ones that may arise 422170808Sdelphij * from tmpfs_update. */ 423170808Sdelphij tmpfs_update(vp); 424170808Sdelphij 425176559Sattilio MPASS(VOP_ISLOCKED(vp)); 426170808Sdelphij 427170808Sdelphij return error; 428170808Sdelphij} 429170808Sdelphij 430197850Sdelphijstatic int 431170808Sdelphijtmpfs_read(struct vop_read_args *v) 432170808Sdelphij{ 433254601Skib struct vnode *vp; 434254601Skib struct uio *uio; 435170808Sdelphij struct tmpfs_node *node; 436170808Sdelphij 437254601Skib vp = v->a_vp; 438254601Skib if (vp->v_type != VREG) 439254601Skib return (EISDIR); 440254601Skib uio = v->a_uio; 441254601Skib if (uio->uio_offset < 0) 442254601Skib return (EINVAL); 443170808Sdelphij node = VP_TO_TMPFS_NODE(vp); 444170808Sdelphij node->tn_status |= TMPFS_NODE_ACCESSED; 445254601Skib return (uiomove_object(node->tn_reg.tn_aobj, node->tn_size, uio)); 446170808Sdelphij} 447170808Sdelphij 448171069Sdelphijstatic int 449170808Sdelphijtmpfs_write(struct vop_write_args *v) 450170808Sdelphij{ 451254601Skib struct vnode *vp; 452254601Skib struct uio *uio; 453254601Skib struct tmpfs_node *node; 454254601Skib off_t oldsize; 455254601Skib int error, ioflag; 456170808Sdelphij 457254601Skib vp = v->a_vp; 458254601Skib uio = v->a_uio; 459254601Skib ioflag = v->a_ioflag; 460254601Skib error = 0; 461170808Sdelphij node = VP_TO_TMPFS_NODE(vp); 462170808Sdelphij oldsize = node->tn_size; 463170808Sdelphij 464254601Skib if (uio->uio_offset < 0 || vp->v_type != VREG) 465254601Skib return (EINVAL); 466254601Skib if (uio->uio_resid == 0) 467254601Skib return (0); 468170808Sdelphij if (ioflag & IO_APPEND) 469170808Sdelphij uio->uio_offset = node->tn_size; 470171070Sdelphij if (uio->uio_offset + uio->uio_resid > 471170808Sdelphij VFS_TO_TMPFS(vp->v_mount)->tm_maxfilesize) 472170808Sdelphij return (EFBIG); 473207719Strasz if (vn_rlimit_fsize(vp, uio, uio->uio_td)) 474207662Strasz return (EFBIG); 475278571Skib if (uio->uio_offset + uio->uio_resid > node->tn_size) { 476230180Salc error = tmpfs_reg_resize(vp, uio->uio_offset + uio->uio_resid, 477230180Salc FALSE); 478170808Sdelphij if (error != 0) 479170808Sdelphij goto out; 480170808Sdelphij } 481170808Sdelphij 482254601Skib error = uiomove_object(node->tn_reg.tn_aobj, node->tn_size, uio); 483170808Sdelphij node->tn_status |= TMPFS_NODE_ACCESSED | TMPFS_NODE_MODIFIED | 484278571Skib TMPFS_NODE_CHANGED; 485170808Sdelphij if (node->tn_mode & (S_ISUID | S_ISGID)) { 486170808Sdelphij if (priv_check_cred(v->a_cred, PRIV_VFS_RETAINSUGID, 0)) 487170808Sdelphij node->tn_mode &= ~(S_ISUID | S_ISGID); 488170808Sdelphij } 489170808Sdelphij if (error != 0) 490230180Salc (void)tmpfs_reg_resize(vp, oldsize, TRUE); 491170808Sdelphij 492170808Sdelphijout: 493170808Sdelphij MPASS(IMPLIES(error == 0, uio->uio_resid == 0)); 494170808Sdelphij MPASS(IMPLIES(error != 0, oldsize == node->tn_size)); 495170808Sdelphij 496254601Skib return (error); 497170808Sdelphij} 498170808Sdelphij 499171069Sdelphijstatic int 500170808Sdelphijtmpfs_fsync(struct vop_fsync_args *v) 501170808Sdelphij{ 502170808Sdelphij struct vnode *vp = v->a_vp; 503170808Sdelphij 504176559Sattilio MPASS(VOP_ISLOCKED(vp)); 505170808Sdelphij 506278571Skib tmpfs_check_mtime(vp); 507170808Sdelphij tmpfs_update(vp); 508170808Sdelphij 509170808Sdelphij return 0; 510170808Sdelphij} 511170808Sdelphij 512171069Sdelphijstatic int 513170808Sdelphijtmpfs_remove(struct vop_remove_args *v) 514170808Sdelphij{ 515170808Sdelphij struct vnode *dvp = v->a_dvp; 516170808Sdelphij struct vnode *vp = v->a_vp; 517170808Sdelphij 518170808Sdelphij int error; 519170808Sdelphij struct tmpfs_dirent *de; 520170808Sdelphij struct tmpfs_mount *tmp; 521170808Sdelphij struct tmpfs_node *dnode; 522170808Sdelphij struct tmpfs_node *node; 523170808Sdelphij 524176559Sattilio MPASS(VOP_ISLOCKED(dvp)); 525176559Sattilio MPASS(VOP_ISLOCKED(vp)); 526170808Sdelphij 527170808Sdelphij if (vp->v_type == VDIR) { 528170808Sdelphij error = EISDIR; 529170808Sdelphij goto out; 530170808Sdelphij } 531170808Sdelphij 532170808Sdelphij dnode = VP_TO_TMPFS_DIR(dvp); 533170808Sdelphij node = VP_TO_TMPFS_NODE(vp); 534170808Sdelphij tmp = VFS_TO_TMPFS(vp->v_mount); 535188318Skib de = tmpfs_dir_lookup(dnode, node, v->a_cnp); 536170808Sdelphij MPASS(de != NULL); 537170808Sdelphij 538170808Sdelphij /* Files marked as immutable or append-only cannot be deleted. */ 539170808Sdelphij if ((node->tn_flags & (IMMUTABLE | APPEND | NOUNLINK)) || 540170808Sdelphij (dnode->tn_flags & APPEND)) { 541170808Sdelphij error = EPERM; 542170808Sdelphij goto out; 543170808Sdelphij } 544170808Sdelphij 545170808Sdelphij /* Remove the entry from the directory; as it is a file, we do not 546170808Sdelphij * have to change the number of hard links of the directory. */ 547170808Sdelphij tmpfs_dir_detach(dvp, de); 548211598Sed if (v->a_cnp->cn_flags & DOWHITEOUT) 549211598Sed tmpfs_dir_whiteout_add(dvp, v->a_cnp); 550170808Sdelphij 551170808Sdelphij /* Free the directory entry we just deleted. Note that the node 552170808Sdelphij * referred by it will not be removed until the vnode is really 553170808Sdelphij * reclaimed. */ 554245115Sgleb tmpfs_free_dirent(tmp, de); 555170808Sdelphij 556218949Salc node->tn_status |= TMPFS_NODE_ACCESSED | TMPFS_NODE_CHANGED; 557170808Sdelphij error = 0; 558170808Sdelphij 559170808Sdelphijout: 560170808Sdelphij 561170808Sdelphij return error; 562170808Sdelphij} 563170808Sdelphij 564171069Sdelphijstatic int 565170808Sdelphijtmpfs_link(struct vop_link_args *v) 566170808Sdelphij{ 567170808Sdelphij struct vnode *dvp = v->a_tdvp; 568170808Sdelphij struct vnode *vp = v->a_vp; 569170808Sdelphij struct componentname *cnp = v->a_cnp; 570170808Sdelphij 571170808Sdelphij int error; 572170808Sdelphij struct tmpfs_dirent *de; 573170808Sdelphij struct tmpfs_node *node; 574170808Sdelphij 575176559Sattilio MPASS(VOP_ISLOCKED(dvp)); 576170808Sdelphij MPASS(cnp->cn_flags & HASBUF); 577170808Sdelphij MPASS(dvp != vp); /* XXX When can this be false? */ 578269167Skib node = VP_TO_TMPFS_NODE(vp); 579269167Skib 580170808Sdelphij /* Ensure that we do not overflow the maximum number of links imposed 581170808Sdelphij * by the system. */ 582170808Sdelphij MPASS(node->tn_links <= LINK_MAX); 583170808Sdelphij if (node->tn_links == LINK_MAX) { 584170808Sdelphij error = EMLINK; 585170808Sdelphij goto out; 586170808Sdelphij } 587170808Sdelphij 588170808Sdelphij /* We cannot create links of files marked immutable or append-only. */ 589170808Sdelphij if (node->tn_flags & (IMMUTABLE | APPEND)) { 590170808Sdelphij error = EPERM; 591170808Sdelphij goto out; 592170808Sdelphij } 593170808Sdelphij 594170808Sdelphij /* Allocate a new directory entry to represent the node. */ 595170808Sdelphij error = tmpfs_alloc_dirent(VFS_TO_TMPFS(vp->v_mount), node, 596170808Sdelphij cnp->cn_nameptr, cnp->cn_namelen, &de); 597170808Sdelphij if (error != 0) 598170808Sdelphij goto out; 599170808Sdelphij 600170808Sdelphij /* Insert the new directory entry into the appropriate directory. */ 601211598Sed if (cnp->cn_flags & ISWHITEOUT) 602211598Sed tmpfs_dir_whiteout_remove(dvp, cnp); 603170808Sdelphij tmpfs_dir_attach(dvp, de); 604170808Sdelphij 605170808Sdelphij /* vp link count has changed, so update node times. */ 606170808Sdelphij node->tn_status |= TMPFS_NODE_CHANGED; 607170808Sdelphij tmpfs_update(vp); 608170808Sdelphij 609170808Sdelphij error = 0; 610171070Sdelphij 611170808Sdelphijout: 612170808Sdelphij return error; 613170808Sdelphij} 614170808Sdelphij 615232960Sgleb/* 616232960Sgleb * We acquire all but fdvp locks using non-blocking acquisitions. If we 617232960Sgleb * fail to acquire any lock in the path we will drop all held locks, 618232960Sgleb * acquire the new lock in a blocking fashion, and then release it and 619232960Sgleb * restart the rename. This acquire/release step ensures that we do not 620232960Sgleb * spin on a lock waiting for release. On error release all vnode locks 621232960Sgleb * and decrement references the way tmpfs_rename() would do. 622232960Sgleb */ 623171069Sdelphijstatic int 624232960Sglebtmpfs_rename_relock(struct vnode *fdvp, struct vnode **fvpp, 625232960Sgleb struct vnode *tdvp, struct vnode **tvpp, 626232960Sgleb struct componentname *fcnp, struct componentname *tcnp) 627232960Sgleb{ 628232960Sgleb struct vnode *nvp; 629232960Sgleb struct mount *mp; 630232960Sgleb struct tmpfs_dirent *de; 631232960Sgleb int error, restarts = 0; 632232960Sgleb 633232960Sgleb VOP_UNLOCK(tdvp, 0); 634232960Sgleb if (*tvpp != NULL && *tvpp != tdvp) 635232960Sgleb VOP_UNLOCK(*tvpp, 0); 636232960Sgleb mp = fdvp->v_mount; 637232960Sgleb 638232960Sglebrelock: 639232960Sgleb restarts += 1; 640232960Sgleb error = vn_lock(fdvp, LK_EXCLUSIVE); 641232960Sgleb if (error) 642232960Sgleb goto releout; 643232960Sgleb if (vn_lock(tdvp, LK_EXCLUSIVE | LK_NOWAIT) != 0) { 644232960Sgleb VOP_UNLOCK(fdvp, 0); 645232960Sgleb error = vn_lock(tdvp, LK_EXCLUSIVE); 646232960Sgleb if (error) 647232960Sgleb goto releout; 648232960Sgleb VOP_UNLOCK(tdvp, 0); 649232960Sgleb goto relock; 650232960Sgleb } 651232960Sgleb /* 652232960Sgleb * Re-resolve fvp to be certain it still exists and fetch the 653232960Sgleb * correct vnode. 654232960Sgleb */ 655232960Sgleb de = tmpfs_dir_lookup(VP_TO_TMPFS_DIR(fdvp), NULL, fcnp); 656232960Sgleb if (de == NULL) { 657232960Sgleb VOP_UNLOCK(fdvp, 0); 658232960Sgleb VOP_UNLOCK(tdvp, 0); 659232960Sgleb if ((fcnp->cn_flags & ISDOTDOT) != 0 || 660232960Sgleb (fcnp->cn_namelen == 1 && fcnp->cn_nameptr[0] == '.')) 661232960Sgleb error = EINVAL; 662232960Sgleb else 663232960Sgleb error = ENOENT; 664232960Sgleb goto releout; 665232960Sgleb } 666232960Sgleb error = tmpfs_alloc_vp(mp, de->td_node, LK_EXCLUSIVE | LK_NOWAIT, &nvp); 667232960Sgleb if (error != 0) { 668232960Sgleb VOP_UNLOCK(fdvp, 0); 669232960Sgleb VOP_UNLOCK(tdvp, 0); 670232960Sgleb if (error != EBUSY) 671232960Sgleb goto releout; 672232960Sgleb error = tmpfs_alloc_vp(mp, de->td_node, LK_EXCLUSIVE, &nvp); 673232960Sgleb if (error != 0) 674232960Sgleb goto releout; 675232960Sgleb VOP_UNLOCK(nvp, 0); 676232960Sgleb /* 677232960Sgleb * Concurrent rename race. 678232960Sgleb */ 679232960Sgleb if (nvp == tdvp) { 680232960Sgleb vrele(nvp); 681232960Sgleb error = EINVAL; 682232960Sgleb goto releout; 683232960Sgleb } 684232960Sgleb vrele(*fvpp); 685232960Sgleb *fvpp = nvp; 686232960Sgleb goto relock; 687232960Sgleb } 688232960Sgleb vrele(*fvpp); 689232960Sgleb *fvpp = nvp; 690232960Sgleb VOP_UNLOCK(*fvpp, 0); 691232960Sgleb /* 692232960Sgleb * Re-resolve tvp and acquire the vnode lock if present. 693232960Sgleb */ 694232960Sgleb de = tmpfs_dir_lookup(VP_TO_TMPFS_DIR(tdvp), NULL, tcnp); 695232960Sgleb /* 696232960Sgleb * If tvp disappeared we just carry on. 697232960Sgleb */ 698232960Sgleb if (de == NULL && *tvpp != NULL) { 699232960Sgleb vrele(*tvpp); 700232960Sgleb *tvpp = NULL; 701232960Sgleb } 702232960Sgleb /* 703232960Sgleb * Get the tvp ino if the lookup succeeded. We may have to restart 704232960Sgleb * if the non-blocking acquire fails. 705232960Sgleb */ 706232960Sgleb if (de != NULL) { 707232960Sgleb nvp = NULL; 708232960Sgleb error = tmpfs_alloc_vp(mp, de->td_node, 709232960Sgleb LK_EXCLUSIVE | LK_NOWAIT, &nvp); 710232960Sgleb if (*tvpp != NULL) 711232960Sgleb vrele(*tvpp); 712232960Sgleb *tvpp = nvp; 713232960Sgleb if (error != 0) { 714232960Sgleb VOP_UNLOCK(fdvp, 0); 715232960Sgleb VOP_UNLOCK(tdvp, 0); 716232960Sgleb if (error != EBUSY) 717232960Sgleb goto releout; 718232960Sgleb error = tmpfs_alloc_vp(mp, de->td_node, LK_EXCLUSIVE, 719232960Sgleb &nvp); 720232960Sgleb if (error != 0) 721232960Sgleb goto releout; 722232960Sgleb VOP_UNLOCK(nvp, 0); 723232960Sgleb /* 724232960Sgleb * fdvp contains fvp, thus tvp (=fdvp) is not empty. 725232960Sgleb */ 726232960Sgleb if (nvp == fdvp) { 727232960Sgleb error = ENOTEMPTY; 728232960Sgleb goto releout; 729232960Sgleb } 730232960Sgleb goto relock; 731232960Sgleb } 732232960Sgleb } 733232960Sgleb tmpfs_rename_restarts += restarts; 734232960Sgleb 735232960Sgleb return (0); 736232960Sgleb 737232960Sglebreleout: 738232960Sgleb vrele(fdvp); 739232960Sgleb vrele(*fvpp); 740232960Sgleb vrele(tdvp); 741232960Sgleb if (*tvpp != NULL) 742232960Sgleb vrele(*tvpp); 743232960Sgleb tmpfs_rename_restarts += restarts; 744232960Sgleb 745232960Sgleb return (error); 746232960Sgleb} 747232960Sgleb 748232960Sglebstatic int 749170808Sdelphijtmpfs_rename(struct vop_rename_args *v) 750170808Sdelphij{ 751170808Sdelphij struct vnode *fdvp = v->a_fdvp; 752170808Sdelphij struct vnode *fvp = v->a_fvp; 753170808Sdelphij struct componentname *fcnp = v->a_fcnp; 754170808Sdelphij struct vnode *tdvp = v->a_tdvp; 755170808Sdelphij struct vnode *tvp = v->a_tvp; 756170808Sdelphij struct componentname *tcnp = v->a_tcnp; 757232960Sgleb struct mount *mp = NULL; 758170808Sdelphij 759170808Sdelphij char *newname; 760170808Sdelphij int error; 761170808Sdelphij struct tmpfs_dirent *de; 762197953Sdelphij struct tmpfs_mount *tmp; 763170808Sdelphij struct tmpfs_node *fdnode; 764170808Sdelphij struct tmpfs_node *fnode; 765171799Sdelphij struct tmpfs_node *tnode; 766170808Sdelphij struct tmpfs_node *tdnode; 767170808Sdelphij 768176559Sattilio MPASS(VOP_ISLOCKED(tdvp)); 769176559Sattilio MPASS(IMPLIES(tvp != NULL, VOP_ISLOCKED(tvp))); 770170808Sdelphij MPASS(fcnp->cn_flags & HASBUF); 771170808Sdelphij MPASS(tcnp->cn_flags & HASBUF); 772170808Sdelphij 773170808Sdelphij /* Disallow cross-device renames. 774170808Sdelphij * XXX Why isn't this done by the caller? */ 775170808Sdelphij if (fvp->v_mount != tdvp->v_mount || 776170808Sdelphij (tvp != NULL && fvp->v_mount != tvp->v_mount)) { 777170808Sdelphij error = EXDEV; 778170808Sdelphij goto out; 779170808Sdelphij } 780170808Sdelphij 781170808Sdelphij /* If source and target are the same file, there is nothing to do. */ 782170808Sdelphij if (fvp == tvp) { 783170808Sdelphij error = 0; 784170808Sdelphij goto out; 785170808Sdelphij } 786170808Sdelphij 787173725Sdelphij /* If we need to move the directory between entries, lock the 788173725Sdelphij * source so that we can safely operate on it. */ 789232960Sgleb if (fdvp != tdvp && fdvp != tvp) { 790232960Sgleb if (vn_lock(fdvp, LK_EXCLUSIVE | LK_NOWAIT) != 0) { 791232960Sgleb mp = tdvp->v_mount; 792232960Sgleb error = vfs_busy(mp, 0); 793232960Sgleb if (error != 0) { 794232960Sgleb mp = NULL; 795232960Sgleb goto out; 796232960Sgleb } 797232960Sgleb error = tmpfs_rename_relock(fdvp, &fvp, tdvp, &tvp, 798232960Sgleb fcnp, tcnp); 799232960Sgleb if (error != 0) { 800232960Sgleb vfs_unbusy(mp); 801232960Sgleb return (error); 802232960Sgleb } 803232960Sgleb ASSERT_VOP_ELOCKED(fdvp, 804232960Sgleb "tmpfs_rename: fdvp not locked"); 805232960Sgleb ASSERT_VOP_ELOCKED(tdvp, 806232960Sgleb "tmpfs_rename: tdvp not locked"); 807232960Sgleb if (tvp != NULL) 808232960Sgleb ASSERT_VOP_ELOCKED(tvp, 809232960Sgleb "tmpfs_rename: tvp not locked"); 810232960Sgleb if (fvp == tvp) { 811232960Sgleb error = 0; 812232960Sgleb goto out_locked; 813232960Sgleb } 814232960Sgleb } 815232960Sgleb } 816232960Sgleb 817232960Sgleb tmp = VFS_TO_TMPFS(tdvp->v_mount); 818232960Sgleb tdnode = VP_TO_TMPFS_DIR(tdvp); 819232960Sgleb tnode = (tvp == NULL) ? NULL : VP_TO_TMPFS_NODE(tvp); 820173725Sdelphij fdnode = VP_TO_TMPFS_DIR(fdvp); 821173725Sdelphij fnode = VP_TO_TMPFS_NODE(fvp); 822188318Skib de = tmpfs_dir_lookup(fdnode, fnode, fcnp); 823173725Sdelphij 824212305Sivoras /* Entry can disappear before we lock fdvp, 825212305Sivoras * also avoid manipulating '.' and '..' entries. */ 826170808Sdelphij if (de == NULL) { 827212305Sivoras if ((fcnp->cn_flags & ISDOTDOT) != 0 || 828212305Sivoras (fcnp->cn_namelen == 1 && fcnp->cn_nameptr[0] == '.')) 829212305Sivoras error = EINVAL; 830212305Sivoras else 831212305Sivoras error = ENOENT; 832173725Sdelphij goto out_locked; 833170808Sdelphij } 834170808Sdelphij MPASS(de->td_node == fnode); 835170808Sdelphij 836171070Sdelphij /* If re-naming a directory to another preexisting directory 837170808Sdelphij * ensure that the target directory is empty so that its 838171070Sdelphij * removal causes no side effects. 839170808Sdelphij * Kern_rename gurantees the destination to be a directory 840170808Sdelphij * if the source is one. */ 841170808Sdelphij if (tvp != NULL) { 842171799Sdelphij MPASS(tnode != NULL); 843171070Sdelphij 844170808Sdelphij if ((tnode->tn_flags & (NOUNLINK | IMMUTABLE | APPEND)) || 845170808Sdelphij (tdnode->tn_flags & (APPEND | IMMUTABLE))) { 846170808Sdelphij error = EPERM; 847173725Sdelphij goto out_locked; 848170808Sdelphij } 849170808Sdelphij 850171799Sdelphij if (fnode->tn_type == VDIR && tnode->tn_type == VDIR) { 851171799Sdelphij if (tnode->tn_size > 0) { 852171799Sdelphij error = ENOTEMPTY; 853173725Sdelphij goto out_locked; 854171799Sdelphij } 855171799Sdelphij } else if (fnode->tn_type == VDIR && tnode->tn_type != VDIR) { 856171799Sdelphij error = ENOTDIR; 857173725Sdelphij goto out_locked; 858171799Sdelphij } else if (fnode->tn_type != VDIR && tnode->tn_type == VDIR) { 859171799Sdelphij error = EISDIR; 860173725Sdelphij goto out_locked; 861171799Sdelphij } else { 862171799Sdelphij MPASS(fnode->tn_type != VDIR && 863171799Sdelphij tnode->tn_type != VDIR); 864170808Sdelphij } 865170808Sdelphij } 866170808Sdelphij 867170808Sdelphij if ((fnode->tn_flags & (NOUNLINK | IMMUTABLE | APPEND)) 868170808Sdelphij || (fdnode->tn_flags & (APPEND | IMMUTABLE))) { 869170808Sdelphij error = EPERM; 870170808Sdelphij goto out_locked; 871170808Sdelphij } 872170808Sdelphij 873170808Sdelphij /* Ensure that we have enough memory to hold the new name, if it 874170808Sdelphij * has to be changed. */ 875170808Sdelphij if (fcnp->cn_namelen != tcnp->cn_namelen || 876183299Sobrien bcmp(fcnp->cn_nameptr, tcnp->cn_nameptr, fcnp->cn_namelen) != 0) { 877171087Sdelphij newname = malloc(tcnp->cn_namelen, M_TMPFSNAME, M_WAITOK); 878170808Sdelphij } else 879170808Sdelphij newname = NULL; 880170808Sdelphij 881170808Sdelphij /* If the node is being moved to another directory, we have to do 882170808Sdelphij * the move. */ 883170808Sdelphij if (fdnode != tdnode) { 884170808Sdelphij /* In case we are moving a directory, we have to adjust its 885170808Sdelphij * parent to point to the new parent. */ 886170808Sdelphij if (de->td_node->tn_type == VDIR) { 887170808Sdelphij struct tmpfs_node *n; 888170808Sdelphij 889170808Sdelphij /* Ensure the target directory is not a child of the 890170808Sdelphij * directory being moved. Otherwise, we'd end up 891170808Sdelphij * with stale nodes. */ 892170808Sdelphij n = tdnode; 893197953Sdelphij /* TMPFS_LOCK garanties that no nodes are freed while 894197953Sdelphij * traversing the list. Nodes can only be marked as 895197953Sdelphij * removed: tn_parent == NULL. */ 896197953Sdelphij TMPFS_LOCK(tmp); 897197953Sdelphij TMPFS_NODE_LOCK(n); 898170808Sdelphij while (n != n->tn_dir.tn_parent) { 899197953Sdelphij struct tmpfs_node *parent; 900197953Sdelphij 901170808Sdelphij if (n == fnode) { 902197953Sdelphij TMPFS_NODE_UNLOCK(n); 903197953Sdelphij TMPFS_UNLOCK(tmp); 904170808Sdelphij error = EINVAL; 905170808Sdelphij if (newname != NULL) 906171087Sdelphij free(newname, M_TMPFSNAME); 907170808Sdelphij goto out_locked; 908170808Sdelphij } 909197953Sdelphij parent = n->tn_dir.tn_parent; 910197953Sdelphij TMPFS_NODE_UNLOCK(n); 911197953Sdelphij if (parent == NULL) { 912197953Sdelphij n = NULL; 913197953Sdelphij break; 914197953Sdelphij } 915197953Sdelphij TMPFS_NODE_LOCK(parent); 916197953Sdelphij if (parent->tn_dir.tn_parent == NULL) { 917197953Sdelphij TMPFS_NODE_UNLOCK(parent); 918197953Sdelphij n = NULL; 919197953Sdelphij break; 920197953Sdelphij } 921197953Sdelphij n = parent; 922170808Sdelphij } 923197953Sdelphij TMPFS_UNLOCK(tmp); 924197953Sdelphij if (n == NULL) { 925197953Sdelphij error = EINVAL; 926197953Sdelphij if (newname != NULL) 927197953Sdelphij free(newname, M_TMPFSNAME); 928197953Sdelphij goto out_locked; 929197953Sdelphij } 930197953Sdelphij TMPFS_NODE_UNLOCK(n); 931170808Sdelphij 932170808Sdelphij /* Adjust the parent pointer. */ 933170808Sdelphij TMPFS_VALIDATE_DIR(fnode); 934197953Sdelphij TMPFS_NODE_LOCK(de->td_node); 935170808Sdelphij de->td_node->tn_dir.tn_parent = tdnode; 936197953Sdelphij TMPFS_NODE_UNLOCK(de->td_node); 937170808Sdelphij 938170808Sdelphij /* As a result of changing the target of the '..' 939170808Sdelphij * entry, the link count of the source and target 940170808Sdelphij * directories has to be adjusted. */ 941197953Sdelphij TMPFS_NODE_LOCK(tdnode); 942197953Sdelphij TMPFS_ASSERT_LOCKED(tdnode); 943197953Sdelphij tdnode->tn_links++; 944197953Sdelphij TMPFS_NODE_UNLOCK(tdnode); 945197953Sdelphij 946197953Sdelphij TMPFS_NODE_LOCK(fdnode); 947197953Sdelphij TMPFS_ASSERT_LOCKED(fdnode); 948170808Sdelphij fdnode->tn_links--; 949197953Sdelphij TMPFS_NODE_UNLOCK(fdnode); 950170808Sdelphij } 951170808Sdelphij } 952170808Sdelphij 953245115Sgleb /* Do the move: just remove the entry from the source directory 954245115Sgleb * and insert it into the target one. */ 955245115Sgleb tmpfs_dir_detach(fdvp, de); 956245115Sgleb 957245115Sgleb if (fcnp->cn_flags & DOWHITEOUT) 958245115Sgleb tmpfs_dir_whiteout_add(fdvp, fcnp); 959245115Sgleb if (tcnp->cn_flags & ISWHITEOUT) 960245115Sgleb tmpfs_dir_whiteout_remove(tdvp, tcnp); 961245115Sgleb 962170808Sdelphij /* If the name has changed, we need to make it effective by changing 963170808Sdelphij * it in the directory entry. */ 964170808Sdelphij if (newname != NULL) { 965170808Sdelphij MPASS(tcnp->cn_namelen <= MAXNAMLEN); 966170808Sdelphij 967245115Sgleb free(de->ud.td_name, M_TMPFSNAME); 968245115Sgleb de->ud.td_name = newname; 969245115Sgleb tmpfs_dirent_init(de, tcnp->cn_nameptr, tcnp->cn_namelen); 970170808Sdelphij 971170808Sdelphij fnode->tn_status |= TMPFS_NODE_CHANGED; 972170808Sdelphij tdnode->tn_status |= TMPFS_NODE_MODIFIED; 973170808Sdelphij } 974170808Sdelphij 975170808Sdelphij /* If we are overwriting an entry, we have to remove the old one 976170808Sdelphij * from the target directory. */ 977170808Sdelphij if (tvp != NULL) { 978245115Sgleb struct tmpfs_dirent *tde; 979245115Sgleb 980170808Sdelphij /* Remove the old entry from the target directory. */ 981245115Sgleb tde = tmpfs_dir_lookup(tdnode, tnode, tcnp); 982245115Sgleb tmpfs_dir_detach(tdvp, tde); 983170808Sdelphij 984170808Sdelphij /* Free the directory entry we just deleted. Note that the 985170808Sdelphij * node referred by it will not be removed until the vnode is 986170808Sdelphij * really reclaimed. */ 987245115Sgleb tmpfs_free_dirent(VFS_TO_TMPFS(tvp->v_mount), tde); 988170808Sdelphij } 989245115Sgleb 990245115Sgleb tmpfs_dir_attach(tdvp, de); 991245115Sgleb 992226987Spho cache_purge(fvp); 993232401Sjhb if (tvp != NULL) 994232401Sjhb cache_purge(tvp); 995248422Skib cache_purge_negative(tdvp); 996170808Sdelphij 997170808Sdelphij error = 0; 998170808Sdelphij 999170808Sdelphijout_locked: 1000227822Sivoras if (fdvp != tdvp && fdvp != tvp) 1001175294Sattilio VOP_UNLOCK(fdvp, 0); 1002170808Sdelphij 1003170808Sdelphijout: 1004170808Sdelphij /* Release target nodes. */ 1005170808Sdelphij /* XXX: I don't understand when tdvp can be the same as tvp, but 1006170808Sdelphij * other code takes care of this... */ 1007170808Sdelphij if (tdvp == tvp) 1008170808Sdelphij vrele(tdvp); 1009170808Sdelphij else 1010170808Sdelphij vput(tdvp); 1011170808Sdelphij if (tvp != NULL) 1012170808Sdelphij vput(tvp); 1013170808Sdelphij 1014170808Sdelphij /* Release source nodes. */ 1015170808Sdelphij vrele(fdvp); 1016170808Sdelphij vrele(fvp); 1017170808Sdelphij 1018232960Sgleb if (mp != NULL) 1019232960Sgleb vfs_unbusy(mp); 1020232960Sgleb 1021170808Sdelphij return error; 1022170808Sdelphij} 1023170808Sdelphij 1024171069Sdelphijstatic int 1025170808Sdelphijtmpfs_mkdir(struct vop_mkdir_args *v) 1026170808Sdelphij{ 1027170808Sdelphij struct vnode *dvp = v->a_dvp; 1028170808Sdelphij struct vnode **vpp = v->a_vpp; 1029170808Sdelphij struct componentname *cnp = v->a_cnp; 1030170808Sdelphij struct vattr *vap = v->a_vap; 1031170808Sdelphij 1032170808Sdelphij MPASS(vap->va_type == VDIR); 1033170808Sdelphij 1034170808Sdelphij return tmpfs_alloc_file(dvp, vpp, vap, cnp, NULL); 1035170808Sdelphij} 1036170808Sdelphij 1037171069Sdelphijstatic int 1038170808Sdelphijtmpfs_rmdir(struct vop_rmdir_args *v) 1039170808Sdelphij{ 1040170808Sdelphij struct vnode *dvp = v->a_dvp; 1041170808Sdelphij struct vnode *vp = v->a_vp; 1042170808Sdelphij 1043170808Sdelphij int error; 1044170808Sdelphij struct tmpfs_dirent *de; 1045170808Sdelphij struct tmpfs_mount *tmp; 1046170808Sdelphij struct tmpfs_node *dnode; 1047170808Sdelphij struct tmpfs_node *node; 1048170808Sdelphij 1049176559Sattilio MPASS(VOP_ISLOCKED(dvp)); 1050176559Sattilio MPASS(VOP_ISLOCKED(vp)); 1051170808Sdelphij 1052170808Sdelphij tmp = VFS_TO_TMPFS(dvp->v_mount); 1053170808Sdelphij dnode = VP_TO_TMPFS_DIR(dvp); 1054170808Sdelphij node = VP_TO_TMPFS_DIR(vp); 1055170808Sdelphij 1056171070Sdelphij /* Directories with more than two entries ('.' and '..') cannot be 1057171070Sdelphij * removed. */ 1058171070Sdelphij if (node->tn_size > 0) { 1059171070Sdelphij error = ENOTEMPTY; 1060171070Sdelphij goto out; 1061171070Sdelphij } 1062170808Sdelphij 1063170808Sdelphij if ((dnode->tn_flags & APPEND) 1064170808Sdelphij || (node->tn_flags & (NOUNLINK | IMMUTABLE | APPEND))) { 1065170808Sdelphij error = EPERM; 1066170808Sdelphij goto out; 1067170808Sdelphij } 1068170808Sdelphij 1069171070Sdelphij /* This invariant holds only if we are not trying to remove "..". 1070171070Sdelphij * We checked for that above so this is safe now. */ 1071170808Sdelphij MPASS(node->tn_dir.tn_parent == dnode); 1072170808Sdelphij 1073170808Sdelphij /* Get the directory entry associated with node (vp). This was 1074170808Sdelphij * filled by tmpfs_lookup while looking up the entry. */ 1075188318Skib de = tmpfs_dir_lookup(dnode, node, v->a_cnp); 1076170808Sdelphij MPASS(TMPFS_DIRENT_MATCHES(de, 1077170808Sdelphij v->a_cnp->cn_nameptr, 1078170808Sdelphij v->a_cnp->cn_namelen)); 1079170808Sdelphij 1080170808Sdelphij /* Check flags to see if we are allowed to remove the directory. */ 1081170808Sdelphij if (dnode->tn_flags & APPEND 1082170808Sdelphij || node->tn_flags & (NOUNLINK | IMMUTABLE | APPEND)) { 1083170808Sdelphij error = EPERM; 1084170808Sdelphij goto out; 1085170808Sdelphij } 1086170808Sdelphij 1087197953Sdelphij 1088170808Sdelphij /* Detach the directory entry from the directory (dnode). */ 1089170808Sdelphij tmpfs_dir_detach(dvp, de); 1090211598Sed if (v->a_cnp->cn_flags & DOWHITEOUT) 1091211598Sed tmpfs_dir_whiteout_add(dvp, v->a_cnp); 1092170808Sdelphij 1093197953Sdelphij /* No vnode should be allocated for this entry from this point */ 1094197953Sdelphij TMPFS_NODE_LOCK(node); 1095197953Sdelphij TMPFS_ASSERT_ELOCKED(node); 1096170808Sdelphij node->tn_links--; 1097197953Sdelphij node->tn_dir.tn_parent = NULL; 1098170808Sdelphij node->tn_status |= TMPFS_NODE_ACCESSED | TMPFS_NODE_CHANGED | \ 1099170808Sdelphij TMPFS_NODE_MODIFIED; 1100197953Sdelphij 1101197953Sdelphij TMPFS_NODE_UNLOCK(node); 1102197953Sdelphij 1103197953Sdelphij TMPFS_NODE_LOCK(dnode); 1104197953Sdelphij TMPFS_ASSERT_ELOCKED(dnode); 1105197953Sdelphij dnode->tn_links--; 1106197953Sdelphij dnode->tn_status |= TMPFS_NODE_ACCESSED | \ 1107170808Sdelphij TMPFS_NODE_CHANGED | TMPFS_NODE_MODIFIED; 1108197953Sdelphij TMPFS_NODE_UNLOCK(dnode); 1109170808Sdelphij 1110171070Sdelphij cache_purge(dvp); 1111170808Sdelphij cache_purge(vp); 1112170808Sdelphij 1113170808Sdelphij /* Free the directory entry we just deleted. Note that the node 1114170808Sdelphij * referred by it will not be removed until the vnode is really 1115170808Sdelphij * reclaimed. */ 1116245115Sgleb tmpfs_free_dirent(tmp, de); 1117170808Sdelphij 1118170808Sdelphij /* Release the deleted vnode (will destroy the node, notify 1119170808Sdelphij * interested parties and clean it from the cache). */ 1120170808Sdelphij 1121170808Sdelphij dnode->tn_status |= TMPFS_NODE_CHANGED; 1122170808Sdelphij tmpfs_update(dvp); 1123170808Sdelphij 1124170808Sdelphij error = 0; 1125170808Sdelphij 1126170808Sdelphijout: 1127170808Sdelphij return error; 1128170808Sdelphij} 1129170808Sdelphij 1130171069Sdelphijstatic int 1131170808Sdelphijtmpfs_symlink(struct vop_symlink_args *v) 1132170808Sdelphij{ 1133170808Sdelphij struct vnode *dvp = v->a_dvp; 1134170808Sdelphij struct vnode **vpp = v->a_vpp; 1135170808Sdelphij struct componentname *cnp = v->a_cnp; 1136170808Sdelphij struct vattr *vap = v->a_vap; 1137170808Sdelphij char *target = v->a_target; 1138170808Sdelphij 1139170808Sdelphij#ifdef notyet /* XXX FreeBSD BUG: kern_symlink is not setting VLNK */ 1140170808Sdelphij MPASS(vap->va_type == VLNK); 1141170808Sdelphij#else 1142170808Sdelphij vap->va_type = VLNK; 1143170808Sdelphij#endif 1144170808Sdelphij 1145170808Sdelphij return tmpfs_alloc_file(dvp, vpp, vap, cnp, target); 1146170808Sdelphij} 1147170808Sdelphij 1148171069Sdelphijstatic int 1149170808Sdelphijtmpfs_readdir(struct vop_readdir_args *v) 1150170808Sdelphij{ 1151170808Sdelphij struct vnode *vp = v->a_vp; 1152170808Sdelphij struct uio *uio = v->a_uio; 1153170808Sdelphij int *eofflag = v->a_eofflag; 1154170808Sdelphij u_long **cookies = v->a_cookies; 1155170808Sdelphij int *ncookies = v->a_ncookies; 1156170808Sdelphij 1157170808Sdelphij int error; 1158245115Sgleb ssize_t startresid; 1159263946Sbdrewery int maxcookies; 1160170808Sdelphij struct tmpfs_node *node; 1161170808Sdelphij 1162170808Sdelphij /* This operation only makes sense on directory nodes. */ 1163171802Sdelphij if (vp->v_type != VDIR) 1164171802Sdelphij return ENOTDIR; 1165170808Sdelphij 1166263946Sbdrewery maxcookies = 0; 1167170808Sdelphij node = VP_TO_TMPFS_DIR(vp); 1168170808Sdelphij 1169245115Sgleb startresid = uio->uio_resid; 1170170808Sdelphij 1171263946Sbdrewery /* Allocate cookies for NFS and compat modules. */ 1172245115Sgleb if (cookies != NULL && ncookies != NULL) { 1173263946Sbdrewery maxcookies = howmany(node->tn_size, 1174263946Sbdrewery sizeof(struct tmpfs_dirent)) + 2; 1175263946Sbdrewery *cookies = malloc(maxcookies * sizeof(**cookies), M_TEMP, 1176263946Sbdrewery M_WAITOK); 1177245115Sgleb *ncookies = 0; 1178171862Sdelphij } 1179171862Sdelphij 1180263946Sbdrewery if (cookies == NULL) 1181245115Sgleb error = tmpfs_dir_getdents(node, uio, 0, NULL, NULL); 1182245115Sgleb else 1183263946Sbdrewery error = tmpfs_dir_getdents(node, uio, maxcookies, *cookies, 1184263946Sbdrewery ncookies); 1185170808Sdelphij 1186263946Sbdrewery /* Buffer was filled without hitting EOF. */ 1187245115Sgleb if (error == EJUSTRETURN) 1188245115Sgleb error = (uio->uio_resid != startresid) ? 0 : EINVAL; 1189171862Sdelphij 1190295897Smarkj if (error != 0 && cookies != NULL && ncookies != NULL) { 1191245115Sgleb free(*cookies, M_TEMP); 1192295897Smarkj *cookies = NULL; 1193295897Smarkj *ncookies = 0; 1194295897Smarkj } 1195171862Sdelphij 1196170808Sdelphij if (eofflag != NULL) 1197170808Sdelphij *eofflag = 1198170808Sdelphij (error == 0 && uio->uio_offset == TMPFS_DIRCOOKIE_EOF); 1199170808Sdelphij 1200170808Sdelphij return error; 1201170808Sdelphij} 1202170808Sdelphij 1203171069Sdelphijstatic int 1204170808Sdelphijtmpfs_readlink(struct vop_readlink_args *v) 1205170808Sdelphij{ 1206170808Sdelphij struct vnode *vp = v->a_vp; 1207170808Sdelphij struct uio *uio = v->a_uio; 1208170808Sdelphij 1209170808Sdelphij int error; 1210170808Sdelphij struct tmpfs_node *node; 1211170808Sdelphij 1212170808Sdelphij MPASS(uio->uio_offset == 0); 1213170808Sdelphij MPASS(vp->v_type == VLNK); 1214170808Sdelphij 1215170808Sdelphij node = VP_TO_TMPFS_NODE(vp); 1216170808Sdelphij 1217170808Sdelphij error = uiomove(node->tn_link, MIN(node->tn_size, uio->uio_resid), 1218170808Sdelphij uio); 1219170808Sdelphij node->tn_status |= TMPFS_NODE_ACCESSED; 1220170808Sdelphij 1221170808Sdelphij return error; 1222170808Sdelphij} 1223170808Sdelphij 1224171069Sdelphijstatic int 1225170808Sdelphijtmpfs_inactive(struct vop_inactive_args *v) 1226170808Sdelphij{ 1227278571Skib struct vnode *vp; 1228170808Sdelphij struct tmpfs_node *node; 1229170808Sdelphij 1230278571Skib vp = v->a_vp; 1231170808Sdelphij node = VP_TO_TMPFS_NODE(vp); 1232170808Sdelphij if (node->tn_links == 0) 1233234607Strasz vrecycle(vp); 1234278571Skib else 1235278571Skib tmpfs_check_mtime(vp); 1236278571Skib return (0); 1237170808Sdelphij} 1238170808Sdelphij 1239170808Sdelphijint 1240170808Sdelphijtmpfs_reclaim(struct vop_reclaim_args *v) 1241170808Sdelphij{ 1242170808Sdelphij struct vnode *vp = v->a_vp; 1243170808Sdelphij 1244170808Sdelphij struct tmpfs_mount *tmp; 1245170808Sdelphij struct tmpfs_node *node; 1246170808Sdelphij 1247170808Sdelphij node = VP_TO_TMPFS_NODE(vp); 1248170808Sdelphij tmp = VFS_TO_TMPFS(vp->v_mount); 1249171070Sdelphij 1250250189Skib if (vp->v_type == VREG) 1251250189Skib tmpfs_destroy_vobject(vp, node->tn_reg.tn_aobj); 1252250190Skib else 1253250190Skib vnode_destroy_vobject(vp); 1254250030Skib vp->v_object = NULL; 1255170808Sdelphij cache_purge(vp); 1256197953Sdelphij 1257197953Sdelphij TMPFS_NODE_LOCK(node); 1258197953Sdelphij TMPFS_ASSERT_ELOCKED(node); 1259170808Sdelphij tmpfs_free_vp(vp); 1260170808Sdelphij 1261170808Sdelphij /* If the node referenced by this vnode was deleted by the user, 1262170808Sdelphij * we must free its associated data structures (now that the vnode 1263170808Sdelphij * is being reclaimed). */ 1264197953Sdelphij if (node->tn_links == 0 && 1265197953Sdelphij (node->tn_vpstate & TMPFS_VNODE_ALLOCATING) == 0) { 1266197953Sdelphij node->tn_vpstate = TMPFS_VNODE_DOOMED; 1267197953Sdelphij TMPFS_NODE_UNLOCK(node); 1268170808Sdelphij tmpfs_free_node(tmp, node); 1269197953Sdelphij } else 1270197953Sdelphij TMPFS_NODE_UNLOCK(node); 1271170808Sdelphij 1272170808Sdelphij MPASS(vp->v_data == NULL); 1273170808Sdelphij return 0; 1274170808Sdelphij} 1275170808Sdelphij 1276171069Sdelphijstatic int 1277170808Sdelphijtmpfs_print(struct vop_print_args *v) 1278170808Sdelphij{ 1279170808Sdelphij struct vnode *vp = v->a_vp; 1280170808Sdelphij 1281170808Sdelphij struct tmpfs_node *node; 1282170808Sdelphij 1283170808Sdelphij node = VP_TO_TMPFS_NODE(vp); 1284170808Sdelphij 1285248610Spjd printf("tag VT_TMPFS, tmpfs_node %p, flags 0x%lx, links %d\n", 1286170808Sdelphij node, node->tn_flags, node->tn_links); 1287231669Stijl printf("\tmode 0%o, owner %d, group %d, size %jd, status 0x%x\n", 1288170808Sdelphij node->tn_mode, node->tn_uid, node->tn_gid, 1289231669Stijl (intmax_t)node->tn_size, node->tn_status); 1290170808Sdelphij 1291170808Sdelphij if (vp->v_type == VFIFO) 1292170808Sdelphij fifo_printinfo(vp); 1293170808Sdelphij 1294170808Sdelphij printf("\n"); 1295170808Sdelphij 1296170808Sdelphij return 0; 1297170808Sdelphij} 1298170808Sdelphij 1299171069Sdelphijstatic int 1300170808Sdelphijtmpfs_pathconf(struct vop_pathconf_args *v) 1301170808Sdelphij{ 1302170808Sdelphij int name = v->a_name; 1303170808Sdelphij register_t *retval = v->a_retval; 1304170808Sdelphij 1305170808Sdelphij int error; 1306170808Sdelphij 1307170808Sdelphij error = 0; 1308170808Sdelphij 1309170808Sdelphij switch (name) { 1310170808Sdelphij case _PC_LINK_MAX: 1311170808Sdelphij *retval = LINK_MAX; 1312170808Sdelphij break; 1313170808Sdelphij 1314170808Sdelphij case _PC_NAME_MAX: 1315170808Sdelphij *retval = NAME_MAX; 1316170808Sdelphij break; 1317170808Sdelphij 1318170808Sdelphij case _PC_PATH_MAX: 1319170808Sdelphij *retval = PATH_MAX; 1320170808Sdelphij break; 1321170808Sdelphij 1322170808Sdelphij case _PC_PIPE_BUF: 1323170808Sdelphij *retval = PIPE_BUF; 1324170808Sdelphij break; 1325170808Sdelphij 1326170808Sdelphij case _PC_CHOWN_RESTRICTED: 1327170808Sdelphij *retval = 1; 1328170808Sdelphij break; 1329170808Sdelphij 1330170808Sdelphij case _PC_NO_TRUNC: 1331170808Sdelphij *retval = 1; 1332170808Sdelphij break; 1333170808Sdelphij 1334170808Sdelphij case _PC_SYNC_IO: 1335170808Sdelphij *retval = 1; 1336170808Sdelphij break; 1337170808Sdelphij 1338170808Sdelphij case _PC_FILESIZEBITS: 1339170808Sdelphij *retval = 0; /* XXX Don't know which value should I return. */ 1340170808Sdelphij break; 1341170808Sdelphij 1342170808Sdelphij default: 1343170808Sdelphij error = EINVAL; 1344170808Sdelphij } 1345170808Sdelphij 1346170808Sdelphij return error; 1347170808Sdelphij} 1348170808Sdelphij 1349171069Sdelphijstatic int 1350170808Sdelphijtmpfs_vptofh(struct vop_vptofh_args *ap) 1351170808Sdelphij{ 1352170808Sdelphij struct tmpfs_fid *tfhp; 1353170808Sdelphij struct tmpfs_node *node; 1354170808Sdelphij 1355170808Sdelphij tfhp = (struct tmpfs_fid *)ap->a_fhp; 1356170808Sdelphij node = VP_TO_TMPFS_NODE(ap->a_vp); 1357170808Sdelphij 1358170808Sdelphij tfhp->tf_len = sizeof(struct tmpfs_fid); 1359170808Sdelphij tfhp->tf_id = node->tn_id; 1360170808Sdelphij tfhp->tf_gen = node->tn_gen; 1361171070Sdelphij 1362170808Sdelphij return (0); 1363170808Sdelphij} 1364171069Sdelphij 1365211598Sedstatic int 1366211598Sedtmpfs_whiteout(struct vop_whiteout_args *ap) 1367211598Sed{ 1368211598Sed struct vnode *dvp = ap->a_dvp; 1369211598Sed struct componentname *cnp = ap->a_cnp; 1370211598Sed struct tmpfs_dirent *de; 1371211598Sed 1372211598Sed switch (ap->a_flags) { 1373211598Sed case LOOKUP: 1374211598Sed return (0); 1375211598Sed case CREATE: 1376211598Sed de = tmpfs_dir_lookup(VP_TO_TMPFS_DIR(dvp), NULL, cnp); 1377211598Sed if (de != NULL) 1378211598Sed return (de->td_node == NULL ? 0 : EEXIST); 1379211598Sed return (tmpfs_dir_whiteout_add(dvp, cnp)); 1380211598Sed case DELETE: 1381211598Sed tmpfs_dir_whiteout_remove(dvp, cnp); 1382211598Sed return (0); 1383211598Sed default: 1384211598Sed panic("tmpfs_whiteout: unknown op"); 1385211598Sed } 1386211598Sed} 1387211598Sed 1388171069Sdelphij/* 1389171069Sdelphij * vnode operations vector used for files stored in a tmpfs file system. 1390171069Sdelphij */ 1391171069Sdelphijstruct vop_vector tmpfs_vnodeop_entries = { 1392171069Sdelphij .vop_default = &default_vnodeops, 1393171069Sdelphij .vop_lookup = vfs_cache_lookup, 1394171069Sdelphij .vop_cachedlookup = tmpfs_lookup, 1395171069Sdelphij .vop_create = tmpfs_create, 1396171069Sdelphij .vop_mknod = tmpfs_mknod, 1397171069Sdelphij .vop_open = tmpfs_open, 1398171069Sdelphij .vop_close = tmpfs_close, 1399171069Sdelphij .vop_access = tmpfs_access, 1400171069Sdelphij .vop_getattr = tmpfs_getattr, 1401171069Sdelphij .vop_setattr = tmpfs_setattr, 1402171069Sdelphij .vop_read = tmpfs_read, 1403171069Sdelphij .vop_write = tmpfs_write, 1404171069Sdelphij .vop_fsync = tmpfs_fsync, 1405171069Sdelphij .vop_remove = tmpfs_remove, 1406171069Sdelphij .vop_link = tmpfs_link, 1407171069Sdelphij .vop_rename = tmpfs_rename, 1408171069Sdelphij .vop_mkdir = tmpfs_mkdir, 1409171069Sdelphij .vop_rmdir = tmpfs_rmdir, 1410171069Sdelphij .vop_symlink = tmpfs_symlink, 1411171069Sdelphij .vop_readdir = tmpfs_readdir, 1412171069Sdelphij .vop_readlink = tmpfs_readlink, 1413171069Sdelphij .vop_inactive = tmpfs_inactive, 1414171069Sdelphij .vop_reclaim = tmpfs_reclaim, 1415171069Sdelphij .vop_print = tmpfs_print, 1416171069Sdelphij .vop_pathconf = tmpfs_pathconf, 1417171069Sdelphij .vop_vptofh = tmpfs_vptofh, 1418211598Sed .vop_whiteout = tmpfs_whiteout, 1419171069Sdelphij .vop_bmap = VOP_EOPNOTSUPP, 1420171069Sdelphij}; 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