Annotation of src/sys/ufs/ffs/ffs_vnops.c, Revision 1.120
1.120 ! manu 1: /* $NetBSD: ffs_vnops.c,v 1.119 2011/06/12 03:36:00 rmind Exp $ */
1.100 simonb 2:
3: /*-
1.109 ad 4: * Copyright (c) 2008, 2009 The NetBSD Foundation, Inc.
1.100 simonb 5: * All rights reserved.
6: *
7: * This code is derived from software contributed to The NetBSD Foundation
1.109 ad 8: * by Wasabi Systems, Inc, and by Andrew Doran.
1.100 simonb 9: *
10: * Redistribution and use in source and binary forms, with or without
11: * modification, are permitted provided that the following conditions
12: * are met:
13: * 1. Redistributions of source code must retain the above copyright
14: * notice, this list of conditions and the following disclaimer.
15: * 2. Redistributions in binary form must reproduce the above copyright
16: * notice, this list of conditions and the following disclaimer in the
17: * documentation and/or other materials provided with the distribution.
18: *
19: * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20: * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21: * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22: * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23: * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24: * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25: * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26: * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27: * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29: * POSSIBILITY OF SUCH DAMAGE.
30: */
1.3 cgd 31:
1.1 mycroft 32: /*
33: * Copyright (c) 1982, 1986, 1989, 1993
34: * The Regents of the University of California. All rights reserved.
35: *
36: * Redistribution and use in source and binary forms, with or without
37: * modification, are permitted provided that the following conditions
38: * are met:
39: * 1. Redistributions of source code must retain the above copyright
40: * notice, this list of conditions and the following disclaimer.
41: * 2. Redistributions in binary form must reproduce the above copyright
42: * notice, this list of conditions and the following disclaimer in the
43: * documentation and/or other materials provided with the distribution.
1.60 agc 44: * 3. Neither the name of the University nor the names of its contributors
1.1 mycroft 45: * may be used to endorse or promote products derived from this software
46: * without specific prior written permission.
47: *
48: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
49: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
50: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
51: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
52: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
53: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
54: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
55: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
56: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
57: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
58: * SUCH DAMAGE.
59: *
1.12 fvdl 60: * @(#)ffs_vnops.c 8.15 (Berkeley) 5/14/95
1.1 mycroft 61: */
1.44 lukem 62:
63: #include <sys/cdefs.h>
1.120 ! manu 64: __KERNEL_RCSID(0, "$NetBSD: ffs_vnops.c,v 1.119 2011/06/12 03:36:00 rmind Exp $");
1.100 simonb 65:
66: #if defined(_KERNEL_OPT)
67: #include "opt_ffs.h"
68: #include "opt_wapbl.h"
69: #endif
1.11 mrg 70:
1.1 mycroft 71: #include <sys/param.h>
72: #include <sys/systm.h>
73: #include <sys/resourcevar.h>
74: #include <sys/kernel.h>
75: #include <sys/file.h>
76: #include <sys/stat.h>
77: #include <sys/buf.h>
1.50 jdolecek 78: #include <sys/event.h>
1.1 mycroft 79: #include <sys/proc.h>
80: #include <sys/mount.h>
81: #include <sys/vnode.h>
1.16 thorpej 82: #include <sys/pool.h>
1.6 christos 83: #include <sys/signalvar.h>
1.80 elad 84: #include <sys/kauth.h>
1.100 simonb 85: #include <sys/wapbl.h>
1.84 hannken 86: #include <sys/fstrans.h>
1.1 mycroft 87:
1.8 mycroft 88: #include <miscfs/fifofs/fifo.h>
89: #include <miscfs/genfs/genfs.h>
1.1 mycroft 90: #include <miscfs/specfs/specdev.h>
91:
92: #include <ufs/ufs/inode.h>
93: #include <ufs/ufs/dir.h>
94: #include <ufs/ufs/ufs_extern.h>
1.2 mycroft 95: #include <ufs/ufs/ufsmount.h>
1.100 simonb 96: #include <ufs/ufs/ufs_wapbl.h>
1.1 mycroft 97:
98: #include <ufs/ffs/fs.h>
99: #include <ufs/ffs/ffs_extern.h>
100:
1.49 chs 101: #include <uvm/uvm.h>
102:
1.1 mycroft 103: /* Global vfs data structures for ufs. */
1.74 xtraeme 104: int (**ffs_vnodeop_p)(void *);
1.37 jdolecek 105: const struct vnodeopv_entry_desc ffs_vnodeop_entries[] = {
1.1 mycroft 106: { &vop_default_desc, vn_default_error },
107: { &vop_lookup_desc, ufs_lookup }, /* lookup */
108: { &vop_create_desc, ufs_create }, /* create */
1.5 mycroft 109: { &vop_whiteout_desc, ufs_whiteout }, /* whiteout */
1.1 mycroft 110: { &vop_mknod_desc, ufs_mknod }, /* mknod */
111: { &vop_open_desc, ufs_open }, /* open */
112: { &vop_close_desc, ufs_close }, /* close */
113: { &vop_access_desc, ufs_access }, /* access */
114: { &vop_getattr_desc, ufs_getattr }, /* getattr */
115: { &vop_setattr_desc, ufs_setattr }, /* setattr */
116: { &vop_read_desc, ffs_read }, /* read */
117: { &vop_write_desc, ffs_write }, /* write */
118: { &vop_ioctl_desc, ufs_ioctl }, /* ioctl */
1.19 wrstuden 119: { &vop_fcntl_desc, ufs_fcntl }, /* fcntl */
1.9 mycroft 120: { &vop_poll_desc, ufs_poll }, /* poll */
1.50 jdolecek 121: { &vop_kqfilter_desc, genfs_kqfilter }, /* kqfilter */
1.12 fvdl 122: { &vop_revoke_desc, ufs_revoke }, /* revoke */
1.1 mycroft 123: { &vop_mmap_desc, ufs_mmap }, /* mmap */
124: { &vop_fsync_desc, ffs_fsync }, /* fsync */
125: { &vop_seek_desc, ufs_seek }, /* seek */
126: { &vop_remove_desc, ufs_remove }, /* remove */
127: { &vop_link_desc, ufs_link }, /* link */
128: { &vop_rename_desc, ufs_rename }, /* rename */
129: { &vop_mkdir_desc, ufs_mkdir }, /* mkdir */
130: { &vop_rmdir_desc, ufs_rmdir }, /* rmdir */
131: { &vop_symlink_desc, ufs_symlink }, /* symlink */
132: { &vop_readdir_desc, ufs_readdir }, /* readdir */
133: { &vop_readlink_desc, ufs_readlink }, /* readlink */
134: { &vop_abortop_desc, ufs_abortop }, /* abortop */
135: { &vop_inactive_desc, ufs_inactive }, /* inactive */
136: { &vop_reclaim_desc, ffs_reclaim }, /* reclaim */
1.113 hannken 137: { &vop_lock_desc, ufs_lock }, /* lock */
138: { &vop_unlock_desc, ufs_unlock }, /* unlock */
1.1 mycroft 139: { &vop_bmap_desc, ufs_bmap }, /* bmap */
140: { &vop_strategy_desc, ufs_strategy }, /* strategy */
141: { &vop_print_desc, ufs_print }, /* print */
1.113 hannken 142: { &vop_islocked_desc, ufs_islocked }, /* islocked */
1.1 mycroft 143: { &vop_pathconf_desc, ufs_pathconf }, /* pathconf */
144: { &vop_advlock_desc, ufs_advlock }, /* advlock */
1.8 mycroft 145: { &vop_bwrite_desc, vn_bwrite }, /* bwrite */
1.88 yamt 146: { &vop_getpages_desc, genfs_getpages }, /* getpages */
1.75 yamt 147: { &vop_putpages_desc, genfs_putpages }, /* putpages */
1.73 thorpej 148: { &vop_openextattr_desc, ffs_openextattr }, /* openextattr */
149: { &vop_closeextattr_desc, ffs_closeextattr }, /* closeextattr */
150: { &vop_getextattr_desc, ffs_getextattr }, /* getextattr */
151: { &vop_setextattr_desc, ffs_setextattr }, /* setextattr */
152: { &vop_listextattr_desc, ffs_listextattr }, /* listextattr */
153: { &vop_deleteextattr_desc, ffs_deleteextattr }, /* deleteextattr */
1.35 chs 154: { NULL, NULL }
1.1 mycroft 155: };
1.37 jdolecek 156: const struct vnodeopv_desc ffs_vnodeop_opv_desc =
1.1 mycroft 157: { &ffs_vnodeop_p, ffs_vnodeop_entries };
158:
1.74 xtraeme 159: int (**ffs_specop_p)(void *);
1.37 jdolecek 160: const struct vnodeopv_entry_desc ffs_specop_entries[] = {
1.1 mycroft 161: { &vop_default_desc, vn_default_error },
162: { &vop_lookup_desc, spec_lookup }, /* lookup */
163: { &vop_create_desc, spec_create }, /* create */
164: { &vop_mknod_desc, spec_mknod }, /* mknod */
165: { &vop_open_desc, spec_open }, /* open */
166: { &vop_close_desc, ufsspec_close }, /* close */
167: { &vop_access_desc, ufs_access }, /* access */
168: { &vop_getattr_desc, ufs_getattr }, /* getattr */
169: { &vop_setattr_desc, ufs_setattr }, /* setattr */
170: { &vop_read_desc, ufsspec_read }, /* read */
171: { &vop_write_desc, ufsspec_write }, /* write */
172: { &vop_ioctl_desc, spec_ioctl }, /* ioctl */
1.19 wrstuden 173: { &vop_fcntl_desc, ufs_fcntl }, /* fcntl */
1.9 mycroft 174: { &vop_poll_desc, spec_poll }, /* poll */
1.50 jdolecek 175: { &vop_kqfilter_desc, spec_kqfilter }, /* kqfilter */
1.12 fvdl 176: { &vop_revoke_desc, spec_revoke }, /* revoke */
1.1 mycroft 177: { &vop_mmap_desc, spec_mmap }, /* mmap */
1.118 hannken 178: { &vop_fsync_desc, ffs_spec_fsync }, /* fsync */
1.1 mycroft 179: { &vop_seek_desc, spec_seek }, /* seek */
180: { &vop_remove_desc, spec_remove }, /* remove */
181: { &vop_link_desc, spec_link }, /* link */
182: { &vop_rename_desc, spec_rename }, /* rename */
183: { &vop_mkdir_desc, spec_mkdir }, /* mkdir */
184: { &vop_rmdir_desc, spec_rmdir }, /* rmdir */
185: { &vop_symlink_desc, spec_symlink }, /* symlink */
186: { &vop_readdir_desc, spec_readdir }, /* readdir */
187: { &vop_readlink_desc, spec_readlink }, /* readlink */
188: { &vop_abortop_desc, spec_abortop }, /* abortop */
189: { &vop_inactive_desc, ufs_inactive }, /* inactive */
190: { &vop_reclaim_desc, ffs_reclaim }, /* reclaim */
1.113 hannken 191: { &vop_lock_desc, ufs_lock }, /* lock */
192: { &vop_unlock_desc, ufs_unlock }, /* unlock */
1.1 mycroft 193: { &vop_bmap_desc, spec_bmap }, /* bmap */
194: { &vop_strategy_desc, spec_strategy }, /* strategy */
195: { &vop_print_desc, ufs_print }, /* print */
1.113 hannken 196: { &vop_islocked_desc, ufs_islocked }, /* islocked */
1.1 mycroft 197: { &vop_pathconf_desc, spec_pathconf }, /* pathconf */
198: { &vop_advlock_desc, spec_advlock }, /* advlock */
1.8 mycroft 199: { &vop_bwrite_desc, vn_bwrite }, /* bwrite */
1.38 chs 200: { &vop_getpages_desc, spec_getpages }, /* getpages */
201: { &vop_putpages_desc, spec_putpages }, /* putpages */
1.73 thorpej 202: { &vop_openextattr_desc, ffs_openextattr }, /* openextattr */
203: { &vop_closeextattr_desc, ffs_closeextattr }, /* closeextattr */
204: { &vop_getextattr_desc, ffs_getextattr }, /* getextattr */
205: { &vop_setextattr_desc, ffs_setextattr }, /* setextattr */
206: { &vop_listextattr_desc, ffs_listextattr }, /* listextattr */
207: { &vop_deleteextattr_desc, ffs_deleteextattr }, /* deleteextattr */
1.35 chs 208: { NULL, NULL }
1.1 mycroft 209: };
1.37 jdolecek 210: const struct vnodeopv_desc ffs_specop_opv_desc =
1.1 mycroft 211: { &ffs_specop_p, ffs_specop_entries };
212:
1.74 xtraeme 213: int (**ffs_fifoop_p)(void *);
1.37 jdolecek 214: const struct vnodeopv_entry_desc ffs_fifoop_entries[] = {
1.1 mycroft 215: { &vop_default_desc, vn_default_error },
1.114 pooka 216: { &vop_lookup_desc, vn_fifo_bypass }, /* lookup */
217: { &vop_create_desc, vn_fifo_bypass }, /* create */
218: { &vop_mknod_desc, vn_fifo_bypass }, /* mknod */
219: { &vop_open_desc, vn_fifo_bypass }, /* open */
1.1 mycroft 220: { &vop_close_desc, ufsfifo_close }, /* close */
221: { &vop_access_desc, ufs_access }, /* access */
222: { &vop_getattr_desc, ufs_getattr }, /* getattr */
223: { &vop_setattr_desc, ufs_setattr }, /* setattr */
224: { &vop_read_desc, ufsfifo_read }, /* read */
225: { &vop_write_desc, ufsfifo_write }, /* write */
1.114 pooka 226: { &vop_ioctl_desc, vn_fifo_bypass }, /* ioctl */
1.19 wrstuden 227: { &vop_fcntl_desc, ufs_fcntl }, /* fcntl */
1.114 pooka 228: { &vop_poll_desc, vn_fifo_bypass }, /* poll */
229: { &vop_kqfilter_desc, vn_fifo_bypass }, /* kqfilter */
230: { &vop_revoke_desc, vn_fifo_bypass }, /* revoke */
231: { &vop_mmap_desc, vn_fifo_bypass }, /* mmap */
1.1 mycroft 232: { &vop_fsync_desc, ffs_fsync }, /* fsync */
1.114 pooka 233: { &vop_seek_desc, vn_fifo_bypass }, /* seek */
234: { &vop_remove_desc, vn_fifo_bypass }, /* remove */
235: { &vop_link_desc, vn_fifo_bypass }, /* link */
236: { &vop_rename_desc, vn_fifo_bypass }, /* rename */
237: { &vop_mkdir_desc, vn_fifo_bypass }, /* mkdir */
238: { &vop_rmdir_desc, vn_fifo_bypass }, /* rmdir */
239: { &vop_symlink_desc, vn_fifo_bypass }, /* symlink */
240: { &vop_readdir_desc, vn_fifo_bypass }, /* readdir */
241: { &vop_readlink_desc, vn_fifo_bypass }, /* readlink */
242: { &vop_abortop_desc, vn_fifo_bypass }, /* abortop */
1.1 mycroft 243: { &vop_inactive_desc, ufs_inactive }, /* inactive */
244: { &vop_reclaim_desc, ffs_reclaim }, /* reclaim */
1.113 hannken 245: { &vop_lock_desc, ufs_lock }, /* lock */
246: { &vop_unlock_desc, ufs_unlock }, /* unlock */
1.114 pooka 247: { &vop_bmap_desc, vn_fifo_bypass }, /* bmap */
248: { &vop_strategy_desc, vn_fifo_bypass }, /* strategy */
1.1 mycroft 249: { &vop_print_desc, ufs_print }, /* print */
1.113 hannken 250: { &vop_islocked_desc, ufs_islocked }, /* islocked */
1.114 pooka 251: { &vop_pathconf_desc, vn_fifo_bypass }, /* pathconf */
252: { &vop_advlock_desc, vn_fifo_bypass }, /* advlock */
1.8 mycroft 253: { &vop_bwrite_desc, vn_bwrite }, /* bwrite */
1.114 pooka 254: { &vop_putpages_desc, vn_fifo_bypass }, /* putpages */
1.73 thorpej 255: { &vop_openextattr_desc, ffs_openextattr }, /* openextattr */
256: { &vop_closeextattr_desc, ffs_closeextattr }, /* closeextattr */
257: { &vop_getextattr_desc, ffs_getextattr }, /* getextattr */
258: { &vop_setextattr_desc, ffs_setextattr }, /* setextattr */
259: { &vop_listextattr_desc, ffs_listextattr }, /* listextattr */
260: { &vop_deleteextattr_desc, ffs_deleteextattr }, /* deleteextattr */
1.35 chs 261: { NULL, NULL }
1.1 mycroft 262: };
1.37 jdolecek 263: const struct vnodeopv_desc ffs_fifoop_opv_desc =
1.1 mycroft 264: { &ffs_fifoop_p, ffs_fifoop_entries };
265:
266: #include <ufs/ufs/ufs_readwrite.c>
1.20 fvdl 267:
1.33 fvdl 268: int
1.118 hannken 269: ffs_spec_fsync(void *v)
270: {
271: struct vop_fsync_args /* {
272: struct vnode *a_vp;
273: kauth_cred_t a_cred;
274: int a_flags;
275: off_t a_offlo;
276: off_t a_offhi;
277: struct lwp *a_l;
278: } */ *ap = v;
279: int error, flags, uflags;
280: struct vnode *vp;
281: struct mount *mp;
282:
283: flags = ap->a_flags;
284: uflags = UPDATE_CLOSE | ((flags & FSYNC_WAIT) ? UPDATE_WAIT : 0);
285: vp = ap->a_vp;
286: mp = vp->v_mount;
287:
288: fstrans_start(mp, FSTRANS_LAZY);
289:
290: error = spec_fsync(v);
291: if (error)
292: goto out;
293:
294: #ifdef WAPBL
295: if (mp && mp->mnt_wapbl) {
296: /*
297: * Don't bother writing out metadata if the syncer is
298: * making the request. We will let the sync vnode
299: * write it out in a single burst through a call to
300: * VFS_SYNC().
301: */
302: if ((flags & (FSYNC_DATAONLY | FSYNC_LAZY)) != 0)
303: goto out;
304: if ((VTOI(vp)->i_flag & (IN_ACCESS | IN_CHANGE | IN_UPDATE
305: | IN_MODIFY | IN_MODIFIED | IN_ACCESSED)) != 0) {
306: error = UFS_WAPBL_BEGIN(mp);
307: if (error != 0)
308: goto out;
309: error = ffs_update(vp, NULL, NULL, uflags);
310: UFS_WAPBL_END(mp);
311: }
312: goto out;
313: }
314: #endif /* WAPBL */
315:
316: error = ffs_update(vp, NULL, NULL, uflags);
317:
318: out:
319: fstrans_done(mp);
320: return error;
321: }
322:
323: int
1.70 thorpej 324: ffs_fsync(void *v)
1.33 fvdl 325: {
326: struct vop_fsync_args /* {
327: struct vnode *a_vp;
1.80 elad 328: kauth_cred_t a_cred;
1.33 fvdl 329: int a_flags;
1.46 chs 330: off_t a_offlo;
331: off_t a_offhi;
1.77 christos 332: struct lwp *a_l;
1.33 fvdl 333: } */ *ap = v;
1.35 chs 334: struct buf *bp;
1.94 ad 335: int num, error, i;
1.33 fvdl 336: struct indir ia[NIADDR + 1];
337: int bsize;
1.45 simonb 338: daddr_t blk_high;
1.33 fvdl 339: struct vnode *vp;
1.100 simonb 340: struct mount *mp;
1.33 fvdl 341:
1.84 hannken 342: vp = ap->a_vp;
1.117 hannken 343: mp = vp->v_mount;
1.84 hannken 344:
1.117 hannken 345: fstrans_start(mp, FSTRANS_LAZY);
1.111 ad 346: if ((ap->a_offlo == 0 && ap->a_offhi == 0) || (vp->v_type != VREG)) {
347: error = ffs_full_fsync(vp, ap->a_flags);
1.84 hannken 348: goto out;
349: }
1.33 fvdl 350:
1.117 hannken 351: bsize = mp->mnt_stat.f_iosize;
1.33 fvdl 352: blk_high = ap->a_offhi / bsize;
353: if (ap->a_offhi % bsize != 0)
354: blk_high++;
355:
356: /*
1.35 chs 357: * First, flush all pages in range.
1.33 fvdl 358: */
1.35 chs 359:
1.119 rmind 360: mutex_enter(vp->v_interlock);
1.64 dbj 361: error = VOP_PUTPAGES(vp, trunc_page(ap->a_offlo),
362: round_page(ap->a_offhi), PGO_CLEANIT |
363: ((ap->a_flags & FSYNC_WAIT) ? PGO_SYNCIO : 0));
364: if (error) {
1.84 hannken 365: goto out;
1.39 chs 366: }
1.33 fvdl 367:
1.100 simonb 368: #ifdef WAPBL
1.117 hannken 369: KASSERT(vp->v_type == VREG);
1.100 simonb 370: if (mp->mnt_wapbl) {
1.110 ad 371: /*
372: * Don't bother writing out metadata if the syncer is
373: * making the request. We will let the sync vnode
374: * write it out in a single burst through a call to
375: * VFS_SYNC().
376: */
377: if ((ap->a_flags & (FSYNC_DATAONLY | FSYNC_LAZY)) != 0) {
1.117 hannken 378: fstrans_done(mp);
1.100 simonb 379: return 0;
380: }
381: error = 0;
382: if (vp->v_tag == VT_UFS && VTOI(vp)->i_flag &
383: (IN_ACCESS | IN_CHANGE | IN_UPDATE | IN_MODIFY |
384: IN_MODIFIED | IN_ACCESSED)) {
385: error = UFS_WAPBL_BEGIN(mp);
386: if (error) {
1.117 hannken 387: fstrans_done(mp);
1.100 simonb 388: return error;
389: }
1.112 ad 390: error = ffs_update(vp, NULL, NULL, UPDATE_CLOSE |
391: ((ap->a_flags & FSYNC_WAIT) ? UPDATE_WAIT : 0));
1.100 simonb 392: UFS_WAPBL_END(mp);
393: }
1.110 ad 394: if (error || (ap->a_flags & FSYNC_NOLOG) != 0) {
1.117 hannken 395: fstrans_done(mp);
1.100 simonb 396: return error;
397: }
398: error = wapbl_flush(mp->mnt_wapbl, 0);
1.117 hannken 399: fstrans_done(mp);
1.100 simonb 400: return error;
401: }
402: #endif /* WAPBL */
403:
1.33 fvdl 404: /*
1.35 chs 405: * Then, flush indirect blocks.
1.33 fvdl 406: */
1.35 chs 407:
1.61 kleink 408: if (blk_high >= NDADDR) {
1.33 fvdl 409: error = ufs_getlbns(vp, blk_high, ia, &num);
1.94 ad 410: if (error)
1.84 hannken 411: goto out;
1.94 ad 412:
413: mutex_enter(&bufcache_lock);
1.33 fvdl 414: for (i = 0; i < num; i++) {
1.94 ad 415: if ((bp = incore(vp, ia[i].in_lbn)) == NULL)
416: continue;
417: if ((bp->b_cflags & BC_BUSY) != 0 ||
418: (bp->b_oflags & BO_DELWRI) == 0)
419: continue;
420: bp->b_cflags |= BC_BUSY | BC_VFLUSH;
421: mutex_exit(&bufcache_lock);
422: bawrite(bp);
423: mutex_enter(&bufcache_lock);
1.33 fvdl 424: }
1.94 ad 425: mutex_exit(&bufcache_lock);
1.33 fvdl 426: }
427:
428: if (ap->a_flags & FSYNC_WAIT) {
1.119 rmind 429: mutex_enter(vp->v_interlock);
1.94 ad 430: while (vp->v_numoutput > 0)
1.119 rmind 431: cv_wait(&vp->v_cv, vp->v_interlock);
432: mutex_exit(vp->v_interlock);
1.33 fvdl 433: }
434:
1.112 ad 435: error = ffs_update(vp, NULL, NULL, UPDATE_CLOSE |
436: (((ap->a_flags & (FSYNC_WAIT | FSYNC_DATAONLY)) == FSYNC_WAIT)
437: ? UPDATE_WAIT : 0));
1.67 wrstuden 438:
439: if (error == 0 && ap->a_flags & FSYNC_CACHE) {
440: int l = 0;
441: VOP_IOCTL(VTOI(vp)->i_devvp, DIOCCACHESYNC, &l, FWRITE,
1.93 pooka 442: curlwp->l_cred);
1.67 wrstuden 443: }
444:
1.84 hannken 445: out:
1.117 hannken 446: fstrans_done(mp);
1.67 wrstuden 447: return error;
1.33 fvdl 448: }
449:
1.20 fvdl 450: /*
1.110 ad 451: * Synch an open file. Called for VOP_FSYNC().
1.20 fvdl 452: */
453: /* ARGSUSED */
1.94 ad 454: int
455: ffs_full_fsync(struct vnode *vp, int flags)
1.20 fvdl 456: {
1.118 hannken 457: int error, i, uflags;
1.99 ad 458: struct mount *mp;
459:
1.118 hannken 460: KASSERT(vp->v_tag == VT_UFS);
1.110 ad 461: KASSERT(VTOI(vp) != NULL);
1.118 hannken 462: KASSERT(vp->v_type != VCHR && vp->v_type != VBLK);
1.110 ad 463:
1.99 ad 464: error = 0;
1.118 hannken 465: uflags = UPDATE_CLOSE | ((flags & FSYNC_WAIT) ? UPDATE_WAIT : 0);
1.24 fvdl 466:
1.110 ad 467: mp = vp->v_mount;
1.105 ad 468:
1.35 chs 469: /*
1.110 ad 470: * Flush all dirty data associated with the vnode.
1.20 fvdl 471: */
1.118 hannken 472: if (vp->v_type == VREG) {
1.101 oster 473: int pflags = PGO_ALLPAGES | PGO_CLEANIT;
474:
475: if ((flags & FSYNC_WAIT))
476: pflags |= PGO_SYNCIO;
1.118 hannken 477: if (fstrans_getstate(mp) == FSTRANS_SUSPENDING)
1.101 oster 478: pflags |= PGO_FREE;
1.119 rmind 479: mutex_enter(vp->v_interlock);
1.101 oster 480: error = VOP_PUTPAGES(vp, 0, 0, pflags);
1.99 ad 481: if (error)
1.39 chs 482: return error;
1.100 simonb 483: }
484:
485: #ifdef WAPBL
486: if (mp && mp->mnt_wapbl) {
1.110 ad 487: /*
488: * Don't bother writing out metadata if the syncer is
489: * making the request. We will let the sync vnode
490: * write it out in a single burst through a call to
491: * VFS_SYNC().
492: */
493: if ((flags & (FSYNC_DATAONLY | FSYNC_LAZY)) != 0)
494: return 0;
1.100 simonb 495:
1.110 ad 496: if ((VTOI(vp)->i_flag & (IN_ACCESS | IN_CHANGE | IN_UPDATE
1.109 ad 497: | IN_MODIFY | IN_MODIFIED | IN_ACCESSED)) != 0) {
1.100 simonb 498: error = UFS_WAPBL_BEGIN(mp);
499: if (error)
500: return error;
1.118 hannken 501: error = ffs_update(vp, NULL, NULL, uflags);
1.100 simonb 502: UFS_WAPBL_END(mp);
503: }
1.110 ad 504: if (error || (flags & FSYNC_NOLOG) != 0)
1.100 simonb 505: return error;
1.106 ad 506:
1.100 simonb 507: /*
508: * Don't flush the log if the vnode being flushed
509: * contains no dirty buffers that could be in the log.
510: */
1.109 ad 511: if (!LIST_EMPTY(&vp->v_dirtyblkhd)) {
1.100 simonb 512: error = wapbl_flush(mp->mnt_wapbl, 0);
513: if (error)
514: return error;
515: }
516:
1.109 ad 517: if ((flags & FSYNC_WAIT) != 0) {
1.119 rmind 518: mutex_enter(vp->v_interlock);
1.110 ad 519: while (vp->v_numoutput != 0)
1.119 rmind 520: cv_wait(&vp->v_cv, vp->v_interlock);
521: mutex_exit(vp->v_interlock);
1.100 simonb 522: }
523:
524: return error;
525: }
526: #endif /* WAPBL */
1.35 chs 527:
1.118 hannken 528: error = vflushbuf(vp, (flags & FSYNC_WAIT) != 0);
529: if (error == 0)
530: error = ffs_update(vp, NULL, NULL, uflags);
1.109 ad 531: if (error == 0 && (flags & FSYNC_CACHE) != 0) {
1.118 hannken 532: i = 1;
1.110 ad 533: (void)VOP_IOCTL(VTOI(vp)->i_devvp, DIOCCACHESYNC, &i, FWRITE,
534: kauth_cred_get());
1.67 wrstuden 535: }
536:
537: return error;
1.20 fvdl 538: }
1.1 mycroft 539:
540: /*
541: * Reclaim an inode so that it can be used for other purposes.
542: */
543: int
1.70 thorpej 544: ffs_reclaim(void *v)
1.6 christos 545: {
1.1 mycroft 546: struct vop_reclaim_args /* {
547: struct vnode *a_vp;
1.77 christos 548: struct lwp *a_l;
1.6 christos 549: } */ *ap = v;
1.26 augustss 550: struct vnode *vp = ap->a_vp;
1.56 fvdl 551: struct inode *ip = VTOI(vp);
1.84 hannken 552: struct mount *mp = vp->v_mount;
1.56 fvdl 553: struct ufsmount *ump = ip->i_ump;
1.94 ad 554: void *data;
1.1 mycroft 555: int error;
556:
1.87 hannken 557: fstrans_start(mp, FSTRANS_LAZY);
1.115 hannken 558: /*
559: * The inode must be freed and updated before being removed
560: * from its hash chain. Other threads trying to gain a hold
561: * on the inode will be stalled because it is locked (VI_XLOCK).
562: */
563: error = UFS_WAPBL_BEGIN(mp);
564: if (error) {
565: fstrans_done(mp);
566: return error;
567: }
1.116 hannken 568: if (ip->i_nlink <= 0 && ip->i_omode != 0 &&
569: (vp->v_mount->mnt_flag & MNT_RDONLY) == 0)
1.115 hannken 570: ffs_vfree(vp, ip->i_number, ip->i_omode);
571: UFS_WAPBL_END(mp);
1.93 pooka 572: if ((error = ufs_reclaim(vp)) != 0) {
1.84 hannken 573: fstrans_done(mp);
1.1 mycroft 574: return (error);
1.84 hannken 575: }
1.57 fvdl 576: if (ip->i_din.ffs1_din != NULL) {
577: if (ump->um_fstype == UFS1)
1.95 ad 578: pool_cache_put(ffs_dinode1_cache, ip->i_din.ffs1_din);
1.57 fvdl 579: else
1.95 ad 580: pool_cache_put(ffs_dinode2_cache, ip->i_din.ffs2_din);
1.57 fvdl 581: }
1.16 thorpej 582: /*
1.94 ad 583: * To interlock with ffs_sync().
584: */
585: genfs_node_destroy(vp);
1.119 rmind 586: mutex_enter(vp->v_interlock);
1.94 ad 587: data = vp->v_data;
588: vp->v_data = NULL;
1.119 rmind 589: mutex_exit(vp->v_interlock);
1.94 ad 590:
591: /*
1.16 thorpej 592: * XXX MFS ends up here, too, to free an inode. Should we create
593: * XXX a separate pool for MFS inodes?
594: */
1.95 ad 595: pool_cache_put(ffs_inode_cache, data);
1.84 hannken 596: fstrans_done(mp);
1.1 mycroft 597: return (0);
1.35 chs 598: }
599:
600: /*
601: * Return the last logical file offset that should be written for this file
602: * if we're doing a write that ends at "size".
603: */
1.39 chs 604:
605: void
1.83 christos 606: ffs_gop_size(struct vnode *vp, off_t size, off_t *eobp, int flags)
1.35 chs 607: {
1.39 chs 608: struct inode *ip = VTOI(vp);
1.35 chs 609: struct fs *fs = ip->i_fs;
1.52 fvdl 610: daddr_t olbn, nlbn;
1.55 perseant 611:
1.56 fvdl 612: olbn = lblkno(fs, ip->i_size);
1.39 chs 613: nlbn = lblkno(fs, size);
1.35 chs 614: if (nlbn < NDADDR && olbn <= nlbn) {
1.39 chs 615: *eobp = fragroundup(fs, size);
1.35 chs 616: } else {
1.39 chs 617: *eobp = blkroundup(fs, size);
1.35 chs 618: }
1.1 mycroft 619: }
1.73 thorpej 620:
621: int
622: ffs_openextattr(void *v)
623: {
624: struct vop_openextattr_args /* {
625: struct vnode *a_vp;
1.80 elad 626: kauth_cred_t a_cred;
1.73 thorpej 627: struct proc *a_p;
628: } */ *ap = v;
629: struct inode *ip = VTOI(ap->a_vp);
630: struct fs *fs = ip->i_fs;
631:
632: /* Not supported for UFS1 file systems. */
633: if (fs->fs_magic == FS_UFS1_MAGIC)
634: return (EOPNOTSUPP);
635:
636: /* XXX Not implemented for UFS2 file systems. */
637: return (EOPNOTSUPP);
638: }
639:
640: int
641: ffs_closeextattr(void *v)
642: {
643: struct vop_closeextattr_args /* {
644: struct vnode *a_vp;
645: int a_commit;
1.80 elad 646: kauth_cred_t a_cred;
1.73 thorpej 647: struct proc *a_p;
648: } */ *ap = v;
649: struct inode *ip = VTOI(ap->a_vp);
650: struct fs *fs = ip->i_fs;
651:
652: /* Not supported for UFS1 file systems. */
653: if (fs->fs_magic == FS_UFS1_MAGIC)
654: return (EOPNOTSUPP);
655:
656: /* XXX Not implemented for UFS2 file systems. */
657: return (EOPNOTSUPP);
658: }
659:
660: int
661: ffs_getextattr(void *v)
662: {
663: struct vop_getextattr_args /* {
664: struct vnode *a_vp;
665: int a_attrnamespace;
666: const char *a_name;
667: struct uio *a_uio;
668: size_t *a_size;
1.80 elad 669: kauth_cred_t a_cred;
1.73 thorpej 670: struct proc *a_p;
671: } */ *ap = v;
1.84 hannken 672: struct vnode *vp = ap->a_vp;
673: struct inode *ip = VTOI(vp);
1.73 thorpej 674: struct fs *fs = ip->i_fs;
675:
676: if (fs->fs_magic == FS_UFS1_MAGIC) {
677: #ifdef UFS_EXTATTR
1.84 hannken 678: int error;
679:
1.87 hannken 680: fstrans_start(vp->v_mount, FSTRANS_SHARED);
1.84 hannken 681: error = ufs_getextattr(ap);
682: fstrans_done(vp->v_mount);
683: return error;
1.73 thorpej 684: #else
685: return (EOPNOTSUPP);
686: #endif
687: }
688:
689: /* XXX Not implemented for UFS2 file systems. */
690: return (EOPNOTSUPP);
691: }
692:
693: int
694: ffs_setextattr(void *v)
695: {
696: struct vop_setextattr_args /* {
697: struct vnode *a_vp;
698: int a_attrnamespace;
699: const char *a_name;
700: struct uio *a_uio;
1.80 elad 701: kauth_cred_t a_cred;
1.73 thorpej 702: struct proc *a_p;
703: } */ *ap = v;
1.84 hannken 704: struct vnode *vp = ap->a_vp;
705: struct inode *ip = VTOI(vp);
1.73 thorpej 706: struct fs *fs = ip->i_fs;
707:
708: if (fs->fs_magic == FS_UFS1_MAGIC) {
709: #ifdef UFS_EXTATTR
1.84 hannken 710: int error;
711:
1.87 hannken 712: fstrans_start(vp->v_mount, FSTRANS_SHARED);
1.84 hannken 713: error = ufs_setextattr(ap);
714: fstrans_done(vp->v_mount);
715: return error;
1.73 thorpej 716: #else
717: return (EOPNOTSUPP);
718: #endif
719: }
720:
721: /* XXX Not implemented for UFS2 file systems. */
722: return (EOPNOTSUPP);
723: }
724:
725: int
726: ffs_listextattr(void *v)
727: {
728: struct vop_listextattr_args /* {
729: struct vnode *a_vp;
730: int a_attrnamespace;
731: struct uio *a_uio;
732: size_t *a_size;
1.80 elad 733: kauth_cred_t a_cred;
1.73 thorpej 734: struct proc *a_p;
735: } */ *ap = v;
736: struct inode *ip = VTOI(ap->a_vp);
737: struct fs *fs = ip->i_fs;
738:
1.120 ! manu 739: if (fs->fs_magic == FS_UFS1_MAGIC) {
! 740: #ifdef UFS_EXTATTR
! 741: struct vnode *vp = ap->a_vp;
! 742: int error;
! 743:
! 744: fstrans_start(vp->v_mount, FSTRANS_SHARED);
! 745: error = ufs_listextattr(ap);
! 746: fstrans_done(vp->v_mount);
! 747: return error;
! 748: #else
1.73 thorpej 749: return (EOPNOTSUPP);
1.120 ! manu 750: #endif
! 751: }
1.73 thorpej 752:
753: /* XXX Not implemented for UFS2 file systems. */
754: return (EOPNOTSUPP);
755: }
756:
757: int
758: ffs_deleteextattr(void *v)
759: {
760: struct vop_deleteextattr_args /* {
761: struct vnode *a_vp;
762: int a_attrnamespace;
1.80 elad 763: kauth_cred_t a_cred;
1.73 thorpej 764: struct proc *a_p;
765: } */ *ap = v;
1.84 hannken 766: struct vnode *vp = ap->a_vp;
767: struct inode *ip = VTOI(vp);
1.73 thorpej 768: struct fs *fs = ip->i_fs;
769:
770: if (fs->fs_magic == FS_UFS1_MAGIC) {
771: #ifdef UFS_EXTATTR
1.84 hannken 772: int error;
773:
1.87 hannken 774: fstrans_start(vp->v_mount, FSTRANS_SHARED);
1.84 hannken 775: error = ufs_deleteextattr(ap);
776: fstrans_done(vp->v_mount);
777: return error;
1.73 thorpej 778: #else
779: return (EOPNOTSUPP);
780: #endif
781: }
782:
783: /* XXX Not implemented for UFS2 file systems. */
784: return (EOPNOTSUPP);
785: }
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