Annotation of src/sys/ufs/ffs/ffs_vnops.c, Revision 1.124.2.1
1.124.2.1! tls 1: /* $NetBSD: ffs_vnops.c,v 1.125 2014/07/25 08:20:53 dholland 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>
1.124.2.1! tls 64: __KERNEL_RCSID(0, "$NetBSD: ffs_vnops.c,v 1.125 2014/07/25 08:20:53 dholland 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 */
1.124.2.1! tls 118: { &vop_fallocate_desc, genfs_eopnotsupp }, /* fallocate */
! 119: { &vop_fdiscard_desc, genfs_eopnotsupp }, /* fdiscard */
1.1 mycroft 120: { &vop_ioctl_desc, ufs_ioctl }, /* ioctl */
1.19 wrstuden 121: { &vop_fcntl_desc, ufs_fcntl }, /* fcntl */
1.9 mycroft 122: { &vop_poll_desc, ufs_poll }, /* poll */
1.50 jdolecek 123: { &vop_kqfilter_desc, genfs_kqfilter }, /* kqfilter */
1.12 fvdl 124: { &vop_revoke_desc, ufs_revoke }, /* revoke */
1.1 mycroft 125: { &vop_mmap_desc, ufs_mmap }, /* mmap */
126: { &vop_fsync_desc, ffs_fsync }, /* fsync */
127: { &vop_seek_desc, ufs_seek }, /* seek */
128: { &vop_remove_desc, ufs_remove }, /* remove */
129: { &vop_link_desc, ufs_link }, /* link */
130: { &vop_rename_desc, ufs_rename }, /* rename */
131: { &vop_mkdir_desc, ufs_mkdir }, /* mkdir */
132: { &vop_rmdir_desc, ufs_rmdir }, /* rmdir */
133: { &vop_symlink_desc, ufs_symlink }, /* symlink */
134: { &vop_readdir_desc, ufs_readdir }, /* readdir */
135: { &vop_readlink_desc, ufs_readlink }, /* readlink */
136: { &vop_abortop_desc, ufs_abortop }, /* abortop */
137: { &vop_inactive_desc, ufs_inactive }, /* inactive */
138: { &vop_reclaim_desc, ffs_reclaim }, /* reclaim */
1.113 hannken 139: { &vop_lock_desc, ufs_lock }, /* lock */
140: { &vop_unlock_desc, ufs_unlock }, /* unlock */
1.1 mycroft 141: { &vop_bmap_desc, ufs_bmap }, /* bmap */
142: { &vop_strategy_desc, ufs_strategy }, /* strategy */
143: { &vop_print_desc, ufs_print }, /* print */
1.113 hannken 144: { &vop_islocked_desc, ufs_islocked }, /* islocked */
1.1 mycroft 145: { &vop_pathconf_desc, ufs_pathconf }, /* pathconf */
146: { &vop_advlock_desc, ufs_advlock }, /* advlock */
1.8 mycroft 147: { &vop_bwrite_desc, vn_bwrite }, /* bwrite */
1.88 yamt 148: { &vop_getpages_desc, genfs_getpages }, /* getpages */
1.75 yamt 149: { &vop_putpages_desc, genfs_putpages }, /* putpages */
1.73 thorpej 150: { &vop_openextattr_desc, ffs_openextattr }, /* openextattr */
151: { &vop_closeextattr_desc, ffs_closeextattr }, /* closeextattr */
152: { &vop_getextattr_desc, ffs_getextattr }, /* getextattr */
153: { &vop_setextattr_desc, ffs_setextattr }, /* setextattr */
154: { &vop_listextattr_desc, ffs_listextattr }, /* listextattr */
155: { &vop_deleteextattr_desc, ffs_deleteextattr }, /* deleteextattr */
1.35 chs 156: { NULL, NULL }
1.1 mycroft 157: };
1.37 jdolecek 158: const struct vnodeopv_desc ffs_vnodeop_opv_desc =
1.1 mycroft 159: { &ffs_vnodeop_p, ffs_vnodeop_entries };
160:
1.74 xtraeme 161: int (**ffs_specop_p)(void *);
1.37 jdolecek 162: const struct vnodeopv_entry_desc ffs_specop_entries[] = {
1.1 mycroft 163: { &vop_default_desc, vn_default_error },
164: { &vop_lookup_desc, spec_lookup }, /* lookup */
165: { &vop_create_desc, spec_create }, /* create */
166: { &vop_mknod_desc, spec_mknod }, /* mknod */
167: { &vop_open_desc, spec_open }, /* open */
168: { &vop_close_desc, ufsspec_close }, /* close */
169: { &vop_access_desc, ufs_access }, /* access */
170: { &vop_getattr_desc, ufs_getattr }, /* getattr */
171: { &vop_setattr_desc, ufs_setattr }, /* setattr */
172: { &vop_read_desc, ufsspec_read }, /* read */
173: { &vop_write_desc, ufsspec_write }, /* write */
1.124.2.1! tls 174: { &vop_fallocate_desc, spec_fallocate }, /* fallocate */
! 175: { &vop_fdiscard_desc, spec_fdiscard }, /* fdiscard */
1.1 mycroft 176: { &vop_ioctl_desc, spec_ioctl }, /* ioctl */
1.19 wrstuden 177: { &vop_fcntl_desc, ufs_fcntl }, /* fcntl */
1.9 mycroft 178: { &vop_poll_desc, spec_poll }, /* poll */
1.50 jdolecek 179: { &vop_kqfilter_desc, spec_kqfilter }, /* kqfilter */
1.12 fvdl 180: { &vop_revoke_desc, spec_revoke }, /* revoke */
1.1 mycroft 181: { &vop_mmap_desc, spec_mmap }, /* mmap */
1.118 hannken 182: { &vop_fsync_desc, ffs_spec_fsync }, /* fsync */
1.1 mycroft 183: { &vop_seek_desc, spec_seek }, /* seek */
184: { &vop_remove_desc, spec_remove }, /* remove */
185: { &vop_link_desc, spec_link }, /* link */
186: { &vop_rename_desc, spec_rename }, /* rename */
187: { &vop_mkdir_desc, spec_mkdir }, /* mkdir */
188: { &vop_rmdir_desc, spec_rmdir }, /* rmdir */
189: { &vop_symlink_desc, spec_symlink }, /* symlink */
190: { &vop_readdir_desc, spec_readdir }, /* readdir */
191: { &vop_readlink_desc, spec_readlink }, /* readlink */
192: { &vop_abortop_desc, spec_abortop }, /* abortop */
193: { &vop_inactive_desc, ufs_inactive }, /* inactive */
194: { &vop_reclaim_desc, ffs_reclaim }, /* reclaim */
1.113 hannken 195: { &vop_lock_desc, ufs_lock }, /* lock */
196: { &vop_unlock_desc, ufs_unlock }, /* unlock */
1.1 mycroft 197: { &vop_bmap_desc, spec_bmap }, /* bmap */
198: { &vop_strategy_desc, spec_strategy }, /* strategy */
199: { &vop_print_desc, ufs_print }, /* print */
1.113 hannken 200: { &vop_islocked_desc, ufs_islocked }, /* islocked */
1.1 mycroft 201: { &vop_pathconf_desc, spec_pathconf }, /* pathconf */
202: { &vop_advlock_desc, spec_advlock }, /* advlock */
1.8 mycroft 203: { &vop_bwrite_desc, vn_bwrite }, /* bwrite */
1.38 chs 204: { &vop_getpages_desc, spec_getpages }, /* getpages */
205: { &vop_putpages_desc, spec_putpages }, /* putpages */
1.73 thorpej 206: { &vop_openextattr_desc, ffs_openextattr }, /* openextattr */
207: { &vop_closeextattr_desc, ffs_closeextattr }, /* closeextattr */
208: { &vop_getextattr_desc, ffs_getextattr }, /* getextattr */
209: { &vop_setextattr_desc, ffs_setextattr }, /* setextattr */
210: { &vop_listextattr_desc, ffs_listextattr }, /* listextattr */
211: { &vop_deleteextattr_desc, ffs_deleteextattr }, /* deleteextattr */
1.35 chs 212: { NULL, NULL }
1.1 mycroft 213: };
1.37 jdolecek 214: const struct vnodeopv_desc ffs_specop_opv_desc =
1.1 mycroft 215: { &ffs_specop_p, ffs_specop_entries };
216:
1.74 xtraeme 217: int (**ffs_fifoop_p)(void *);
1.37 jdolecek 218: const struct vnodeopv_entry_desc ffs_fifoop_entries[] = {
1.1 mycroft 219: { &vop_default_desc, vn_default_error },
1.114 pooka 220: { &vop_lookup_desc, vn_fifo_bypass }, /* lookup */
221: { &vop_create_desc, vn_fifo_bypass }, /* create */
222: { &vop_mknod_desc, vn_fifo_bypass }, /* mknod */
223: { &vop_open_desc, vn_fifo_bypass }, /* open */
1.1 mycroft 224: { &vop_close_desc, ufsfifo_close }, /* close */
225: { &vop_access_desc, ufs_access }, /* access */
226: { &vop_getattr_desc, ufs_getattr }, /* getattr */
227: { &vop_setattr_desc, ufs_setattr }, /* setattr */
228: { &vop_read_desc, ufsfifo_read }, /* read */
229: { &vop_write_desc, ufsfifo_write }, /* write */
1.124.2.1! tls 230: { &vop_fallocate_desc, vn_fifo_bypass }, /* fallocate */
! 231: { &vop_fdiscard_desc, vn_fifo_bypass }, /* fdiscard */
1.114 pooka 232: { &vop_ioctl_desc, vn_fifo_bypass }, /* ioctl */
1.19 wrstuden 233: { &vop_fcntl_desc, ufs_fcntl }, /* fcntl */
1.114 pooka 234: { &vop_poll_desc, vn_fifo_bypass }, /* poll */
235: { &vop_kqfilter_desc, vn_fifo_bypass }, /* kqfilter */
236: { &vop_revoke_desc, vn_fifo_bypass }, /* revoke */
237: { &vop_mmap_desc, vn_fifo_bypass }, /* mmap */
1.1 mycroft 238: { &vop_fsync_desc, ffs_fsync }, /* fsync */
1.114 pooka 239: { &vop_seek_desc, vn_fifo_bypass }, /* seek */
240: { &vop_remove_desc, vn_fifo_bypass }, /* remove */
241: { &vop_link_desc, vn_fifo_bypass }, /* link */
242: { &vop_rename_desc, vn_fifo_bypass }, /* rename */
243: { &vop_mkdir_desc, vn_fifo_bypass }, /* mkdir */
244: { &vop_rmdir_desc, vn_fifo_bypass }, /* rmdir */
245: { &vop_symlink_desc, vn_fifo_bypass }, /* symlink */
246: { &vop_readdir_desc, vn_fifo_bypass }, /* readdir */
247: { &vop_readlink_desc, vn_fifo_bypass }, /* readlink */
248: { &vop_abortop_desc, vn_fifo_bypass }, /* abortop */
1.1 mycroft 249: { &vop_inactive_desc, ufs_inactive }, /* inactive */
250: { &vop_reclaim_desc, ffs_reclaim }, /* reclaim */
1.113 hannken 251: { &vop_lock_desc, ufs_lock }, /* lock */
252: { &vop_unlock_desc, ufs_unlock }, /* unlock */
1.114 pooka 253: { &vop_bmap_desc, vn_fifo_bypass }, /* bmap */
254: { &vop_strategy_desc, vn_fifo_bypass }, /* strategy */
1.1 mycroft 255: { &vop_print_desc, ufs_print }, /* print */
1.113 hannken 256: { &vop_islocked_desc, ufs_islocked }, /* islocked */
1.114 pooka 257: { &vop_pathconf_desc, vn_fifo_bypass }, /* pathconf */
258: { &vop_advlock_desc, vn_fifo_bypass }, /* advlock */
1.8 mycroft 259: { &vop_bwrite_desc, vn_bwrite }, /* bwrite */
1.114 pooka 260: { &vop_putpages_desc, vn_fifo_bypass }, /* putpages */
1.73 thorpej 261: { &vop_openextattr_desc, ffs_openextattr }, /* openextattr */
262: { &vop_closeextattr_desc, ffs_closeextattr }, /* closeextattr */
263: { &vop_getextattr_desc, ffs_getextattr }, /* getextattr */
264: { &vop_setextattr_desc, ffs_setextattr }, /* setextattr */
265: { &vop_listextattr_desc, ffs_listextattr }, /* listextattr */
266: { &vop_deleteextattr_desc, ffs_deleteextattr }, /* deleteextattr */
1.35 chs 267: { NULL, NULL }
1.1 mycroft 268: };
1.37 jdolecek 269: const struct vnodeopv_desc ffs_fifoop_opv_desc =
1.1 mycroft 270: { &ffs_fifoop_p, ffs_fifoop_entries };
271:
272: #include <ufs/ufs/ufs_readwrite.c>
1.20 fvdl 273:
1.33 fvdl 274: int
1.118 hannken 275: ffs_spec_fsync(void *v)
276: {
277: struct vop_fsync_args /* {
278: struct vnode *a_vp;
279: kauth_cred_t a_cred;
280: int a_flags;
281: off_t a_offlo;
282: off_t a_offhi;
283: struct lwp *a_l;
284: } */ *ap = v;
285: int error, flags, uflags;
286: struct vnode *vp;
287: struct mount *mp;
288:
289: flags = ap->a_flags;
290: uflags = UPDATE_CLOSE | ((flags & FSYNC_WAIT) ? UPDATE_WAIT : 0);
291: vp = ap->a_vp;
292: mp = vp->v_mount;
293:
294: fstrans_start(mp, FSTRANS_LAZY);
295:
296: error = spec_fsync(v);
297: if (error)
298: goto out;
299:
300: #ifdef WAPBL
301: if (mp && mp->mnt_wapbl) {
302: /*
303: * Don't bother writing out metadata if the syncer is
304: * making the request. We will let the sync vnode
305: * write it out in a single burst through a call to
306: * VFS_SYNC().
307: */
308: if ((flags & (FSYNC_DATAONLY | FSYNC_LAZY)) != 0)
309: goto out;
310: if ((VTOI(vp)->i_flag & (IN_ACCESS | IN_CHANGE | IN_UPDATE
311: | IN_MODIFY | IN_MODIFIED | IN_ACCESSED)) != 0) {
312: error = UFS_WAPBL_BEGIN(mp);
313: if (error != 0)
314: goto out;
315: error = ffs_update(vp, NULL, NULL, uflags);
316: UFS_WAPBL_END(mp);
317: }
318: goto out;
319: }
320: #endif /* WAPBL */
321:
322: error = ffs_update(vp, NULL, NULL, uflags);
323:
324: out:
325: fstrans_done(mp);
326: return error;
327: }
328:
329: int
1.70 thorpej 330: ffs_fsync(void *v)
1.33 fvdl 331: {
332: struct vop_fsync_args /* {
333: struct vnode *a_vp;
1.80 elad 334: kauth_cred_t a_cred;
1.33 fvdl 335: int a_flags;
1.46 chs 336: off_t a_offlo;
337: off_t a_offhi;
1.77 christos 338: struct lwp *a_l;
1.33 fvdl 339: } */ *ap = v;
1.35 chs 340: struct buf *bp;
1.94 ad 341: int num, error, i;
1.122 dholland 342: struct indir ia[UFS_NIADDR + 1];
1.33 fvdl 343: int bsize;
1.45 simonb 344: daddr_t blk_high;
1.33 fvdl 345: struct vnode *vp;
1.100 simonb 346: struct mount *mp;
1.33 fvdl 347:
1.84 hannken 348: vp = ap->a_vp;
1.117 hannken 349: mp = vp->v_mount;
1.84 hannken 350:
1.117 hannken 351: fstrans_start(mp, FSTRANS_LAZY);
1.111 ad 352: if ((ap->a_offlo == 0 && ap->a_offhi == 0) || (vp->v_type != VREG)) {
353: error = ffs_full_fsync(vp, ap->a_flags);
1.84 hannken 354: goto out;
355: }
1.33 fvdl 356:
1.117 hannken 357: bsize = mp->mnt_stat.f_iosize;
1.33 fvdl 358: blk_high = ap->a_offhi / bsize;
359: if (ap->a_offhi % bsize != 0)
360: blk_high++;
361:
362: /*
1.35 chs 363: * First, flush all pages in range.
1.33 fvdl 364: */
1.35 chs 365:
1.119 rmind 366: mutex_enter(vp->v_interlock);
1.64 dbj 367: error = VOP_PUTPAGES(vp, trunc_page(ap->a_offlo),
368: round_page(ap->a_offhi), PGO_CLEANIT |
369: ((ap->a_flags & FSYNC_WAIT) ? PGO_SYNCIO : 0));
370: if (error) {
1.84 hannken 371: goto out;
1.39 chs 372: }
1.33 fvdl 373:
1.100 simonb 374: #ifdef WAPBL
1.117 hannken 375: KASSERT(vp->v_type == VREG);
1.100 simonb 376: if (mp->mnt_wapbl) {
1.110 ad 377: /*
378: * Don't bother writing out metadata if the syncer is
379: * making the request. We will let the sync vnode
380: * write it out in a single burst through a call to
381: * VFS_SYNC().
382: */
383: if ((ap->a_flags & (FSYNC_DATAONLY | FSYNC_LAZY)) != 0) {
1.117 hannken 384: fstrans_done(mp);
1.100 simonb 385: return 0;
386: }
387: error = 0;
388: if (vp->v_tag == VT_UFS && VTOI(vp)->i_flag &
389: (IN_ACCESS | IN_CHANGE | IN_UPDATE | IN_MODIFY |
390: IN_MODIFIED | IN_ACCESSED)) {
391: error = UFS_WAPBL_BEGIN(mp);
392: if (error) {
1.117 hannken 393: fstrans_done(mp);
1.100 simonb 394: return error;
395: }
1.112 ad 396: error = ffs_update(vp, NULL, NULL, UPDATE_CLOSE |
397: ((ap->a_flags & FSYNC_WAIT) ? UPDATE_WAIT : 0));
1.100 simonb 398: UFS_WAPBL_END(mp);
399: }
1.110 ad 400: if (error || (ap->a_flags & FSYNC_NOLOG) != 0) {
1.117 hannken 401: fstrans_done(mp);
1.100 simonb 402: return error;
403: }
404: error = wapbl_flush(mp->mnt_wapbl, 0);
1.117 hannken 405: fstrans_done(mp);
1.100 simonb 406: return error;
407: }
408: #endif /* WAPBL */
409:
1.33 fvdl 410: /*
1.35 chs 411: * Then, flush indirect blocks.
1.33 fvdl 412: */
1.35 chs 413:
1.122 dholland 414: if (blk_high >= UFS_NDADDR) {
1.33 fvdl 415: error = ufs_getlbns(vp, blk_high, ia, &num);
1.94 ad 416: if (error)
1.84 hannken 417: goto out;
1.94 ad 418:
419: mutex_enter(&bufcache_lock);
1.33 fvdl 420: for (i = 0; i < num; i++) {
1.94 ad 421: if ((bp = incore(vp, ia[i].in_lbn)) == NULL)
422: continue;
423: if ((bp->b_cflags & BC_BUSY) != 0 ||
424: (bp->b_oflags & BO_DELWRI) == 0)
425: continue;
426: bp->b_cflags |= BC_BUSY | BC_VFLUSH;
427: mutex_exit(&bufcache_lock);
428: bawrite(bp);
429: mutex_enter(&bufcache_lock);
1.33 fvdl 430: }
1.94 ad 431: mutex_exit(&bufcache_lock);
1.33 fvdl 432: }
433:
434: if (ap->a_flags & FSYNC_WAIT) {
1.119 rmind 435: mutex_enter(vp->v_interlock);
1.94 ad 436: while (vp->v_numoutput > 0)
1.119 rmind 437: cv_wait(&vp->v_cv, vp->v_interlock);
438: mutex_exit(vp->v_interlock);
1.33 fvdl 439: }
440:
1.112 ad 441: error = ffs_update(vp, NULL, NULL, UPDATE_CLOSE |
442: (((ap->a_flags & (FSYNC_WAIT | FSYNC_DATAONLY)) == FSYNC_WAIT)
443: ? UPDATE_WAIT : 0));
1.67 wrstuden 444:
445: if (error == 0 && ap->a_flags & FSYNC_CACHE) {
446: int l = 0;
447: VOP_IOCTL(VTOI(vp)->i_devvp, DIOCCACHESYNC, &l, FWRITE,
1.93 pooka 448: curlwp->l_cred);
1.67 wrstuden 449: }
450:
1.84 hannken 451: out:
1.117 hannken 452: fstrans_done(mp);
1.67 wrstuden 453: return error;
1.33 fvdl 454: }
455:
1.20 fvdl 456: /*
1.110 ad 457: * Synch an open file. Called for VOP_FSYNC().
1.20 fvdl 458: */
459: /* ARGSUSED */
1.94 ad 460: int
461: ffs_full_fsync(struct vnode *vp, int flags)
1.20 fvdl 462: {
1.118 hannken 463: int error, i, uflags;
1.99 ad 464:
1.118 hannken 465: KASSERT(vp->v_tag == VT_UFS);
1.110 ad 466: KASSERT(VTOI(vp) != NULL);
1.118 hannken 467: KASSERT(vp->v_type != VCHR && vp->v_type != VBLK);
1.110 ad 468:
1.118 hannken 469: uflags = UPDATE_CLOSE | ((flags & FSYNC_WAIT) ? UPDATE_WAIT : 0);
1.24 fvdl 470:
1.121 chs 471: #ifdef WAPBL
472: struct mount *mp = vp->v_mount;
473: if (mp && mp->mnt_wapbl) {
1.105 ad 474:
1.121 chs 475: /*
476: * Flush all dirty data associated with the vnode.
477: */
478: if (vp->v_type == VREG) {
479: int pflags = PGO_ALLPAGES | PGO_CLEANIT;
1.101 oster 480:
1.121 chs 481: if ((flags & FSYNC_LAZY))
482: pflags |= PGO_LAZY;
483: if ((flags & FSYNC_WAIT))
484: pflags |= PGO_SYNCIO;
485: if (fstrans_getstate(mp) == FSTRANS_SUSPENDING)
486: pflags |= PGO_FREE;
487: mutex_enter(vp->v_interlock);
488: error = VOP_PUTPAGES(vp, 0, 0, pflags);
489: if (error)
490: return error;
491: }
1.100 simonb 492:
1.110 ad 493: /*
494: * Don't bother writing out metadata if the syncer is
495: * making the request. We will let the sync vnode
496: * write it out in a single burst through a call to
497: * VFS_SYNC().
498: */
499: if ((flags & (FSYNC_DATAONLY | FSYNC_LAZY)) != 0)
500: return 0;
1.100 simonb 501:
1.110 ad 502: if ((VTOI(vp)->i_flag & (IN_ACCESS | IN_CHANGE | IN_UPDATE
1.109 ad 503: | IN_MODIFY | IN_MODIFIED | IN_ACCESSED)) != 0) {
1.100 simonb 504: error = UFS_WAPBL_BEGIN(mp);
505: if (error)
506: return error;
1.118 hannken 507: error = ffs_update(vp, NULL, NULL, uflags);
1.100 simonb 508: UFS_WAPBL_END(mp);
1.121 chs 509: } else {
510: error = 0;
1.100 simonb 511: }
1.110 ad 512: if (error || (flags & FSYNC_NOLOG) != 0)
1.100 simonb 513: return error;
1.106 ad 514:
1.100 simonb 515: /*
516: * Don't flush the log if the vnode being flushed
517: * contains no dirty buffers that could be in the log.
518: */
1.109 ad 519: if (!LIST_EMPTY(&vp->v_dirtyblkhd)) {
1.100 simonb 520: error = wapbl_flush(mp->mnt_wapbl, 0);
521: if (error)
522: return error;
523: }
524:
1.109 ad 525: if ((flags & FSYNC_WAIT) != 0) {
1.119 rmind 526: mutex_enter(vp->v_interlock);
1.110 ad 527: while (vp->v_numoutput != 0)
1.119 rmind 528: cv_wait(&vp->v_cv, vp->v_interlock);
529: mutex_exit(vp->v_interlock);
1.100 simonb 530: }
531:
532: return error;
533: }
534: #endif /* WAPBL */
1.35 chs 535:
1.121 chs 536: error = vflushbuf(vp, flags);
1.118 hannken 537: if (error == 0)
538: error = ffs_update(vp, NULL, NULL, uflags);
1.109 ad 539: if (error == 0 && (flags & FSYNC_CACHE) != 0) {
1.118 hannken 540: i = 1;
1.110 ad 541: (void)VOP_IOCTL(VTOI(vp)->i_devvp, DIOCCACHESYNC, &i, FWRITE,
542: kauth_cred_get());
1.67 wrstuden 543: }
544:
545: return error;
1.20 fvdl 546: }
1.1 mycroft 547:
548: /*
549: * Reclaim an inode so that it can be used for other purposes.
550: */
551: int
1.70 thorpej 552: ffs_reclaim(void *v)
1.6 christos 553: {
1.1 mycroft 554: struct vop_reclaim_args /* {
555: struct vnode *a_vp;
1.77 christos 556: struct lwp *a_l;
1.6 christos 557: } */ *ap = v;
1.26 augustss 558: struct vnode *vp = ap->a_vp;
1.56 fvdl 559: struct inode *ip = VTOI(vp);
1.84 hannken 560: struct mount *mp = vp->v_mount;
1.56 fvdl 561: struct ufsmount *ump = ip->i_ump;
1.94 ad 562: void *data;
1.1 mycroft 563: int error;
564:
1.87 hannken 565: fstrans_start(mp, FSTRANS_LAZY);
1.115 hannken 566: /*
567: * The inode must be freed and updated before being removed
568: * from its hash chain. Other threads trying to gain a hold
1.124 hannken 569: * or lock on the inode will be stalled.
1.115 hannken 570: */
571: error = UFS_WAPBL_BEGIN(mp);
572: if (error) {
573: fstrans_done(mp);
574: return error;
575: }
1.116 hannken 576: if (ip->i_nlink <= 0 && ip->i_omode != 0 &&
577: (vp->v_mount->mnt_flag & MNT_RDONLY) == 0)
1.115 hannken 578: ffs_vfree(vp, ip->i_number, ip->i_omode);
579: UFS_WAPBL_END(mp);
1.93 pooka 580: if ((error = ufs_reclaim(vp)) != 0) {
1.84 hannken 581: fstrans_done(mp);
1.1 mycroft 582: return (error);
1.84 hannken 583: }
1.57 fvdl 584: if (ip->i_din.ffs1_din != NULL) {
585: if (ump->um_fstype == UFS1)
1.95 ad 586: pool_cache_put(ffs_dinode1_cache, ip->i_din.ffs1_din);
1.57 fvdl 587: else
1.95 ad 588: pool_cache_put(ffs_dinode2_cache, ip->i_din.ffs2_din);
1.57 fvdl 589: }
1.16 thorpej 590: /*
1.94 ad 591: * To interlock with ffs_sync().
592: */
593: genfs_node_destroy(vp);
1.119 rmind 594: mutex_enter(vp->v_interlock);
1.94 ad 595: data = vp->v_data;
596: vp->v_data = NULL;
1.119 rmind 597: mutex_exit(vp->v_interlock);
1.94 ad 598:
599: /*
1.16 thorpej 600: * XXX MFS ends up here, too, to free an inode. Should we create
601: * XXX a separate pool for MFS inodes?
602: */
1.95 ad 603: pool_cache_put(ffs_inode_cache, data);
1.84 hannken 604: fstrans_done(mp);
1.1 mycroft 605: return (0);
1.35 chs 606: }
607:
608: /*
609: * Return the last logical file offset that should be written for this file
610: * if we're doing a write that ends at "size".
611: */
1.39 chs 612:
613: void
1.83 christos 614: ffs_gop_size(struct vnode *vp, off_t size, off_t *eobp, int flags)
1.35 chs 615: {
1.39 chs 616: struct inode *ip = VTOI(vp);
1.35 chs 617: struct fs *fs = ip->i_fs;
1.52 fvdl 618: daddr_t olbn, nlbn;
1.55 perseant 619:
1.123 dholland 620: olbn = ffs_lblkno(fs, ip->i_size);
621: nlbn = ffs_lblkno(fs, size);
1.122 dholland 622: if (nlbn < UFS_NDADDR && olbn <= nlbn) {
1.123 dholland 623: *eobp = ffs_fragroundup(fs, size);
1.35 chs 624: } else {
1.123 dholland 625: *eobp = ffs_blkroundup(fs, size);
1.35 chs 626: }
1.1 mycroft 627: }
1.73 thorpej 628:
629: int
630: ffs_openextattr(void *v)
631: {
632: struct vop_openextattr_args /* {
633: struct vnode *a_vp;
1.80 elad 634: kauth_cred_t a_cred;
1.73 thorpej 635: struct proc *a_p;
636: } */ *ap = v;
637: struct inode *ip = VTOI(ap->a_vp);
638: struct fs *fs = ip->i_fs;
639:
640: /* Not supported for UFS1 file systems. */
641: if (fs->fs_magic == FS_UFS1_MAGIC)
642: return (EOPNOTSUPP);
643:
644: /* XXX Not implemented for UFS2 file systems. */
645: return (EOPNOTSUPP);
646: }
647:
648: int
649: ffs_closeextattr(void *v)
650: {
651: struct vop_closeextattr_args /* {
652: struct vnode *a_vp;
653: int a_commit;
1.80 elad 654: kauth_cred_t a_cred;
1.73 thorpej 655: struct proc *a_p;
656: } */ *ap = v;
657: struct inode *ip = VTOI(ap->a_vp);
658: struct fs *fs = ip->i_fs;
659:
660: /* Not supported for UFS1 file systems. */
661: if (fs->fs_magic == FS_UFS1_MAGIC)
662: return (EOPNOTSUPP);
663:
664: /* XXX Not implemented for UFS2 file systems. */
665: return (EOPNOTSUPP);
666: }
667:
668: int
669: ffs_getextattr(void *v)
670: {
671: struct vop_getextattr_args /* {
672: struct vnode *a_vp;
673: int a_attrnamespace;
674: const char *a_name;
675: struct uio *a_uio;
676: size_t *a_size;
1.80 elad 677: kauth_cred_t a_cred;
1.73 thorpej 678: struct proc *a_p;
679: } */ *ap = v;
1.84 hannken 680: struct vnode *vp = ap->a_vp;
681: struct inode *ip = VTOI(vp);
1.73 thorpej 682: struct fs *fs = ip->i_fs;
683:
684: if (fs->fs_magic == FS_UFS1_MAGIC) {
685: #ifdef UFS_EXTATTR
1.84 hannken 686: int error;
687:
1.87 hannken 688: fstrans_start(vp->v_mount, FSTRANS_SHARED);
1.84 hannken 689: error = ufs_getextattr(ap);
690: fstrans_done(vp->v_mount);
691: return error;
1.73 thorpej 692: #else
693: return (EOPNOTSUPP);
694: #endif
695: }
696:
697: /* XXX Not implemented for UFS2 file systems. */
698: return (EOPNOTSUPP);
699: }
700:
701: int
702: ffs_setextattr(void *v)
703: {
704: struct vop_setextattr_args /* {
705: struct vnode *a_vp;
706: int a_attrnamespace;
707: const char *a_name;
708: struct uio *a_uio;
1.80 elad 709: kauth_cred_t a_cred;
1.73 thorpej 710: struct proc *a_p;
711: } */ *ap = v;
1.84 hannken 712: struct vnode *vp = ap->a_vp;
713: struct inode *ip = VTOI(vp);
1.73 thorpej 714: struct fs *fs = ip->i_fs;
715:
716: if (fs->fs_magic == FS_UFS1_MAGIC) {
717: #ifdef UFS_EXTATTR
1.84 hannken 718: int error;
719:
1.87 hannken 720: fstrans_start(vp->v_mount, FSTRANS_SHARED);
1.84 hannken 721: error = ufs_setextattr(ap);
722: fstrans_done(vp->v_mount);
723: return error;
1.73 thorpej 724: #else
725: return (EOPNOTSUPP);
726: #endif
727: }
728:
729: /* XXX Not implemented for UFS2 file systems. */
730: return (EOPNOTSUPP);
731: }
732:
733: int
734: ffs_listextattr(void *v)
735: {
736: struct vop_listextattr_args /* {
737: struct vnode *a_vp;
738: int a_attrnamespace;
739: struct uio *a_uio;
740: size_t *a_size;
1.80 elad 741: kauth_cred_t a_cred;
1.73 thorpej 742: struct proc *a_p;
743: } */ *ap = v;
744: struct inode *ip = VTOI(ap->a_vp);
745: struct fs *fs = ip->i_fs;
746:
1.120 manu 747: if (fs->fs_magic == FS_UFS1_MAGIC) {
748: #ifdef UFS_EXTATTR
749: struct vnode *vp = ap->a_vp;
750: int error;
751:
752: fstrans_start(vp->v_mount, FSTRANS_SHARED);
753: error = ufs_listextattr(ap);
754: fstrans_done(vp->v_mount);
755: return error;
756: #else
1.73 thorpej 757: return (EOPNOTSUPP);
1.120 manu 758: #endif
759: }
1.73 thorpej 760:
761: /* XXX Not implemented for UFS2 file systems. */
762: return (EOPNOTSUPP);
763: }
764:
765: int
766: ffs_deleteextattr(void *v)
767: {
768: struct vop_deleteextattr_args /* {
769: struct vnode *a_vp;
770: int a_attrnamespace;
1.80 elad 771: kauth_cred_t a_cred;
1.73 thorpej 772: struct proc *a_p;
773: } */ *ap = v;
1.84 hannken 774: struct vnode *vp = ap->a_vp;
775: struct inode *ip = VTOI(vp);
1.73 thorpej 776: struct fs *fs = ip->i_fs;
777:
778: if (fs->fs_magic == FS_UFS1_MAGIC) {
779: #ifdef UFS_EXTATTR
1.84 hannken 780: int error;
781:
1.87 hannken 782: fstrans_start(vp->v_mount, FSTRANS_SHARED);
1.84 hannken 783: error = ufs_deleteextattr(ap);
784: fstrans_done(vp->v_mount);
785: return error;
1.73 thorpej 786: #else
787: return (EOPNOTSUPP);
788: #endif
789: }
790:
791: /* XXX Not implemented for UFS2 file systems. */
792: return (EOPNOTSUPP);
793: }
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