Commit | Line | Data |
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da7c5cc6 | 1 | /* |
7188ac27 KM |
2 | * Copyright (c) 1982, 1986, 1989 Regents of the University of California. |
3 | * All rights reserved. | |
da7c5cc6 | 4 | * |
b702c21d | 5 | * %sccs.include.redist.c% |
7188ac27 | 6 | * |
517ac0f1 | 7 | * @(#)ffs_vnops.c 7.92 (Berkeley) %G% |
a6673c09 KB |
8 | */ |
9 | ||
10 | #include <sys/param.h> | |
11 | #include <sys/systm.h> | |
a6673c09 KB |
12 | #include <sys/resourcevar.h> |
13 | #include <sys/kernel.h> | |
14 | #include <sys/file.h> | |
15 | #include <sys/stat.h> | |
16 | #include <sys/buf.h> | |
17 | #include <sys/proc.h> | |
18 | #include <sys/conf.h> | |
19 | #include <sys/mount.h> | |
20 | #include <sys/vnode.h> | |
a6673c09 KB |
21 | #include <sys/malloc.h> |
22 | ||
80e9de4e KM |
23 | #include <vm/vm.h> |
24 | ||
41d6cb49 KM |
25 | #include <miscfs/specfs/specdev.h> |
26 | #include <miscfs/fifofs/fifo.h> | |
27 | ||
a6673c09 KB |
28 | #include <ufs/ufs/lockf.h> |
29 | #include <ufs/ufs/quota.h> | |
30 | #include <ufs/ufs/inode.h> | |
31 | #include <ufs/ufs/dir.h> | |
32 | #include <ufs/ufs/ufs_extern.h> | |
33 | ||
34 | #include <ufs/ffs/fs.h> | |
35 | #include <ufs/ffs/ffs_extern.h> | |
36 | ||
37 | /* Global vfs data structures for ufs. */ | |
9342689a JH |
38 | int (**ffs_vnodeop_p)(); |
39 | struct vnodeopv_entry_desc ffs_vnodeop_entries[] = { | |
40 | { &vop_default_desc, vn_default_error }, | |
41 | { &vop_lookup_desc, ufs_lookup }, /* lookup */ | |
42 | { &vop_create_desc, ufs_create }, /* create */ | |
aef53d88 JH |
43 | { &vop_mknod_desc, ufs_mknod }, /* mknod */ |
44 | { &vop_open_desc, ufs_open }, /* open */ | |
45 | { &vop_close_desc, ufs_close }, /* close */ | |
9342689a JH |
46 | { &vop_access_desc, ufs_access }, /* access */ |
47 | { &vop_getattr_desc, ufs_getattr }, /* getattr */ | |
48 | { &vop_setattr_desc, ufs_setattr }, /* setattr */ | |
aef53d88 JH |
49 | { &vop_read_desc, ffs_read }, /* read */ |
50 | { &vop_write_desc, ffs_write }, /* write */ | |
51 | { &vop_ioctl_desc, ufs_ioctl }, /* ioctl */ | |
9342689a | 52 | { &vop_select_desc, ufs_select }, /* select */ |
aef53d88 JH |
53 | { &vop_mmap_desc, ufs_mmap }, /* mmap */ |
54 | { &vop_fsync_desc, ffs_fsync }, /* fsync */ | |
55 | { &vop_seek_desc, ufs_seek }, /* seek */ | |
9342689a | 56 | { &vop_remove_desc, ufs_remove }, /* remove */ |
aef53d88 | 57 | { &vop_link_desc, ufs_link }, /* link */ |
9342689a | 58 | { &vop_rename_desc, ufs_rename }, /* rename */ |
aef53d88 JH |
59 | { &vop_mkdir_desc, ufs_mkdir }, /* mkdir */ |
60 | { &vop_rmdir_desc, ufs_rmdir }, /* rmdir */ | |
9342689a JH |
61 | { &vop_symlink_desc, ufs_symlink }, /* symlink */ |
62 | { &vop_readdir_desc, ufs_readdir }, /* readdir */ | |
63 | { &vop_readlink_desc, ufs_readlink }, /* readlink */ | |
64 | { &vop_abortop_desc, ufs_abortop }, /* abortop */ | |
65 | { &vop_inactive_desc, ffs_inactive }, /* inactive */ | |
66 | { &vop_reclaim_desc, ufs_reclaim }, /* reclaim */ | |
aef53d88 | 67 | { &vop_lock_desc, ufs_lock }, /* lock */ |
9342689a | 68 | { &vop_unlock_desc, ufs_unlock }, /* unlock */ |
aef53d88 | 69 | { &vop_bmap_desc, ffs_bmap }, /* bmap */ |
9342689a | 70 | { &vop_strategy_desc, ufs_strategy }, /* strategy */ |
aef53d88 | 71 | { &vop_print_desc, ufs_print }, /* print */ |
9342689a JH |
72 | { &vop_islocked_desc, ufs_islocked }, /* islocked */ |
73 | { &vop_advlock_desc, ufs_advlock }, /* advlock */ | |
74 | { &vop_blkatoff_desc, ffs_blkatoff }, /* blkatoff */ | |
9342689a | 75 | { &vop_valloc_desc, ffs_valloc }, /* valloc */ |
aef53d88 | 76 | { &vop_vfree_desc, ffs_vfree }, /* vfree */ |
9342689a JH |
77 | { &vop_truncate_desc, ffs_truncate }, /* truncate */ |
78 | { &vop_update_desc, ffs_update }, /* update */ | |
36c34e72 | 79 | { &vop_bwrite_desc, vn_bwrite }, |
9342689a | 80 | { (struct vnodeop_desc*)NULL, (int(*)())NULL } |
a6673c09 | 81 | }; |
9342689a JH |
82 | struct vnodeopv_desc ffs_vnodeop_opv_desc = |
83 | { &ffs_vnodeop_p, ffs_vnodeop_entries }; | |
528f664c | 84 | |
9342689a JH |
85 | int (**ffs_specop_p)(); |
86 | struct vnodeopv_entry_desc ffs_specop_entries[] = { | |
87 | { &vop_default_desc, vn_default_error }, | |
88 | { &vop_lookup_desc, spec_lookup }, /* lookup */ | |
89 | { &vop_create_desc, spec_create }, /* create */ | |
90 | { &vop_mknod_desc, spec_mknod }, /* mknod */ | |
aef53d88 | 91 | { &vop_open_desc, spec_open }, /* open */ |
9342689a JH |
92 | { &vop_close_desc, ufsspec_close }, /* close */ |
93 | { &vop_access_desc, ufs_access }, /* access */ | |
94 | { &vop_getattr_desc, ufs_getattr }, /* getattr */ | |
95 | { &vop_setattr_desc, ufs_setattr }, /* setattr */ | |
96 | { &vop_read_desc, ufsspec_read }, /* read */ | |
97 | { &vop_write_desc, ufsspec_write }, /* write */ | |
98 | { &vop_ioctl_desc, spec_ioctl }, /* ioctl */ | |
99 | { &vop_select_desc, spec_select }, /* select */ | |
aef53d88 | 100 | { &vop_mmap_desc, spec_mmap }, /* mmap */ |
06337661 | 101 | { &vop_fsync_desc, ffs_fsync }, /* fsync */ |
aef53d88 | 102 | { &vop_seek_desc, spec_seek }, /* seek */ |
9342689a | 103 | { &vop_remove_desc, spec_remove }, /* remove */ |
aef53d88 | 104 | { &vop_link_desc, spec_link }, /* link */ |
9342689a JH |
105 | { &vop_rename_desc, spec_rename }, /* rename */ |
106 | { &vop_mkdir_desc, spec_mkdir }, /* mkdir */ | |
107 | { &vop_rmdir_desc, spec_rmdir }, /* rmdir */ | |
108 | { &vop_symlink_desc, spec_symlink }, /* symlink */ | |
109 | { &vop_readdir_desc, spec_readdir }, /* readdir */ | |
110 | { &vop_readlink_desc, spec_readlink }, /* readlink */ | |
111 | { &vop_abortop_desc, spec_abortop }, /* abortop */ | |
112 | { &vop_inactive_desc, ffs_inactive }, /* inactive */ | |
113 | { &vop_reclaim_desc, ufs_reclaim }, /* reclaim */ | |
aef53d88 | 114 | { &vop_lock_desc, ufs_lock }, /* lock */ |
9342689a | 115 | { &vop_unlock_desc, ufs_unlock }, /* unlock */ |
aef53d88 | 116 | { &vop_bmap_desc, spec_bmap }, /* bmap */ |
9342689a | 117 | { &vop_strategy_desc, spec_strategy }, /* strategy */ |
aef53d88 | 118 | { &vop_print_desc, ufs_print }, /* print */ |
9342689a JH |
119 | { &vop_islocked_desc, ufs_islocked }, /* islocked */ |
120 | { &vop_advlock_desc, spec_advlock }, /* advlock */ | |
121 | { &vop_blkatoff_desc, spec_blkatoff }, /* blkatoff */ | |
9342689a | 122 | { &vop_valloc_desc, spec_valloc }, /* valloc */ |
bccabe5d | 123 | { &vop_vfree_desc, ffs_vfree }, /* vfree */ |
9342689a JH |
124 | { &vop_truncate_desc, spec_truncate }, /* truncate */ |
125 | { &vop_update_desc, ffs_update }, /* update */ | |
36c34e72 | 126 | { &vop_bwrite_desc, vn_bwrite }, |
9342689a | 127 | { (struct vnodeop_desc*)NULL, (int(*)())NULL } |
9d5097aa | 128 | }; |
9342689a JH |
129 | struct vnodeopv_desc ffs_specop_opv_desc = |
130 | { &ffs_specop_p, ffs_specop_entries }; | |
9d5097aa KM |
131 | |
132 | #ifdef FIFO | |
9342689a JH |
133 | int (**ffs_fifoop_p)(); |
134 | struct vnodeopv_entry_desc ffs_fifoop_entries[] = { | |
135 | { &vop_default_desc, vn_default_error }, | |
136 | { &vop_lookup_desc, fifo_lookup }, /* lookup */ | |
137 | { &vop_create_desc, fifo_create }, /* create */ | |
138 | { &vop_mknod_desc, fifo_mknod }, /* mknod */ | |
aef53d88 | 139 | { &vop_open_desc, fifo_open }, /* open */ |
9342689a JH |
140 | { &vop_close_desc, ufsfifo_close }, /* close */ |
141 | { &vop_access_desc, ufs_access }, /* access */ | |
142 | { &vop_getattr_desc, ufs_getattr }, /* getattr */ | |
143 | { &vop_setattr_desc, ufs_setattr }, /* setattr */ | |
144 | { &vop_read_desc, ufsfifo_read }, /* read */ | |
145 | { &vop_write_desc, ufsfifo_write }, /* write */ | |
146 | { &vop_ioctl_desc, fifo_ioctl }, /* ioctl */ | |
147 | { &vop_select_desc, fifo_select }, /* select */ | |
aef53d88 | 148 | { &vop_mmap_desc, fifo_mmap }, /* mmap */ |
06337661 | 149 | { &vop_fsync_desc, ffs_fsync }, /* fsync */ |
aef53d88 | 150 | { &vop_seek_desc, fifo_seek }, /* seek */ |
9342689a | 151 | { &vop_remove_desc, fifo_remove }, /* remove */ |
aef53d88 | 152 | { &vop_link_desc, fifo_link }, /* link */ |
9342689a JH |
153 | { &vop_rename_desc, fifo_rename }, /* rename */ |
154 | { &vop_mkdir_desc, fifo_mkdir }, /* mkdir */ | |
155 | { &vop_rmdir_desc, fifo_rmdir }, /* rmdir */ | |
156 | { &vop_symlink_desc, fifo_symlink }, /* symlink */ | |
157 | { &vop_readdir_desc, fifo_readdir }, /* readdir */ | |
158 | { &vop_readlink_desc, fifo_readlink }, /* readlink */ | |
159 | { &vop_abortop_desc, fifo_abortop }, /* abortop */ | |
160 | { &vop_inactive_desc, ffs_inactive }, /* inactive */ | |
161 | { &vop_reclaim_desc, ufs_reclaim }, /* reclaim */ | |
aef53d88 | 162 | { &vop_lock_desc, ufs_lock }, /* lock */ |
9342689a | 163 | { &vop_unlock_desc, ufs_unlock }, /* unlock */ |
aef53d88 | 164 | { &vop_bmap_desc, fifo_bmap }, /* bmap */ |
9342689a | 165 | { &vop_strategy_desc, fifo_strategy }, /* strategy */ |
aef53d88 | 166 | { &vop_print_desc, ufs_print }, /* print */ |
9342689a JH |
167 | { &vop_islocked_desc, ufs_islocked }, /* islocked */ |
168 | { &vop_advlock_desc, fifo_advlock }, /* advlock */ | |
169 | { &vop_blkatoff_desc, fifo_blkatoff }, /* blkatoff */ | |
9342689a | 170 | { &vop_valloc_desc, fifo_valloc }, /* valloc */ |
bccabe5d | 171 | { &vop_vfree_desc, ffs_vfree }, /* vfree */ |
9342689a JH |
172 | { &vop_truncate_desc, fifo_truncate }, /* truncate */ |
173 | { &vop_update_desc, ffs_update }, /* update */ | |
36c34e72 | 174 | { &vop_bwrite_desc, vn_bwrite }, |
9342689a | 175 | { (struct vnodeop_desc*)NULL, (int(*)())NULL } |
9d5097aa | 176 | }; |
9342689a JH |
177 | struct vnodeopv_desc ffs_fifoop_opv_desc = |
178 | { &ffs_fifoop_p, ffs_fifoop_entries }; | |
9d5097aa KM |
179 | #endif /* FIFO */ |
180 | ||
d67a03eb | 181 | |
b373e060 KM |
182 | /* |
183 | * Vnode op for reading. | |
184 | */ | |
185 | /* ARGSUSED */ | |
cc1475d2 | 186 | ffs_read(ap) |
06337661 KM |
187 | struct vop_read_args /* { |
188 | struct vnode *a_vp; | |
189 | struct uio *a_uio; | |
190 | int a_ioflag; | |
191 | struct ucred *a_cred; | |
192 | } */ *ap; | |
b373e060 | 193 | { |
cc1475d2 KM |
194 | register struct vnode *vp = ap->a_vp; |
195 | register struct inode *ip = VTOI(vp); | |
196 | register struct uio *uio = ap->a_uio; | |
b373e060 KM |
197 | register struct fs *fs; |
198 | struct buf *bp; | |
199 | daddr_t lbn, bn, rablock; | |
b7077901 | 200 | off_t diff; |
1ca49178 KM |
201 | int rasize, error = 0; |
202 | long size, n, on; | |
b373e060 | 203 | |
5b169cb7 | 204 | #ifdef DIAGNOSTIC |
b7077901 | 205 | int type; |
cc1475d2 | 206 | if (uio->uio_rw != UIO_READ) |
a6673c09 | 207 | panic("ffs_read mode"); |
b373e060 KM |
208 | type = ip->i_mode & IFMT; |
209 | if (type != IFDIR && type != IFREG && type != IFLNK) | |
a6673c09 | 210 | panic("ffs_read type"); |
517ac0f1 | 211 | if (type == IFLNK && (int)ip->i_size < vp->v_mount->mnt_maxsymlinklen) |
1c985e53 | 212 | panic("read short symlink"); |
5b169cb7 | 213 | #endif |
cc1475d2 | 214 | if (uio->uio_resid == 0) |
b373e060 | 215 | return (0); |
cc1475d2 | 216 | fs = ip->i_fs; |
3d2d8c1a KM |
217 | if ((u_quad_t)uio->uio_offset > fs->fs_maxfilesize) |
218 | return (EFBIG); | |
b373e060 | 219 | ip->i_flag |= IACC; |
b373e060 | 220 | do { |
cc1475d2 KM |
221 | lbn = lblkno(fs, uio->uio_offset); |
222 | on = blkoff(fs, uio->uio_offset); | |
ffbb1df8 | 223 | n = min((unsigned)(fs->fs_bsize - on), uio->uio_resid); |
cc1475d2 | 224 | diff = ip->i_size - uio->uio_offset; |
b373e060 KM |
225 | if (diff <= 0) |
226 | return (0); | |
227 | if (diff < n) | |
228 | n = diff; | |
b373e060 | 229 | size = blksize(fs, ip, lbn); |
e16fa59e | 230 | rablock = lbn + 1; |
cc1475d2 | 231 | if (vp->v_lastr + 1 == lbn && |
38f21582 KM |
232 | lblktosize(fs, rablock) < ip->i_size) { |
233 | rasize = blksize(fs, ip, rablock); | |
cc1475d2 | 234 | error = breadn(vp, lbn, size, &rablock, |
38f21582 KM |
235 | &rasize, 1, NOCRED, &bp); |
236 | } else | |
cc1475d2 KM |
237 | error = bread(vp, lbn, size, NOCRED, &bp); |
238 | vp->v_lastr = lbn; | |
ffbb1df8 | 239 | n = min(n, size - bp->b_resid); |
b373e060 KM |
240 | if (error) { |
241 | brelse(bp); | |
242 | return (error); | |
243 | } | |
cc1475d2 KM |
244 | error = uiomove(bp->b_un.b_addr + on, (int)n, uio); |
245 | if (n + on == fs->fs_bsize || uio->uio_offset == ip->i_size) | |
b373e060 KM |
246 | bp->b_flags |= B_AGE; |
247 | brelse(bp); | |
cc1475d2 | 248 | } while (error == 0 && uio->uio_resid > 0 && n != 0); |
b373e060 KM |
249 | return (error); |
250 | } | |
251 | ||
252 | /* | |
253 | * Vnode op for writing. | |
254 | */ | |
cc1475d2 | 255 | ffs_write(ap) |
06337661 KM |
256 | struct vop_write_args /* { |
257 | struct vnode *a_vp; | |
258 | struct uio *a_uio; | |
259 | int a_ioflag; | |
260 | struct ucred *a_cred; | |
261 | } */ *ap; | |
b373e060 | 262 | { |
406c9a0d | 263 | register struct vnode *vp = ap->a_vp; |
cc1475d2 | 264 | register struct uio *uio = ap->a_uio; |
406c9a0d | 265 | register struct inode *ip = VTOI(vp); |
b373e060 | 266 | register struct fs *fs; |
cc1475d2 KM |
267 | struct proc *p = uio->uio_procp; |
268 | int ioflag = ap->a_ioflag; | |
d056f176 | 269 | struct timeval tv; |
b373e060 KM |
270 | struct buf *bp; |
271 | daddr_t lbn, bn; | |
0308fc84 | 272 | off_t osize; |
8986c97c KM |
273 | int n, on, flags; |
274 | int size, resid, error = 0; | |
b373e060 | 275 | |
5b169cb7 | 276 | #ifdef DIAGNOSTIC |
cc1475d2 | 277 | if (uio->uio_rw != UIO_WRITE) |
a6673c09 | 278 | panic("ffs_write mode"); |
5b169cb7 | 279 | #endif |
406c9a0d | 280 | switch (vp->v_type) { |
b373e060 | 281 | case VREG: |
cc1475d2 KM |
282 | if (ioflag & IO_APPEND) |
283 | uio->uio_offset = ip->i_size; | |
b373e060 KM |
284 | /* fall through */ |
285 | case VLNK: | |
286 | break; | |
287 | ||
288 | case VDIR: | |
cc1475d2 | 289 | if ((ioflag & IO_SYNC) == 0) |
a6673c09 | 290 | panic("ffs_write nonsync dir write"); |
b373e060 KM |
291 | break; |
292 | ||
293 | default: | |
a6673c09 | 294 | panic("ffs_write type"); |
b373e060 | 295 | } |
cc1475d2 | 296 | if (uio->uio_resid == 0) |
b373e060 | 297 | return (0); |
c2dc2eb9 | 298 | fs = ip->i_fs; |
592a05b4 KM |
299 | if (uio->uio_offset < 0 || |
300 | (u_quad_t)uio->uio_offset + uio->uio_resid > fs->fs_maxfilesize) | |
c2dc2eb9 | 301 | return (EFBIG); |
b373e060 KM |
302 | /* |
303 | * Maybe this should be above the vnode op call, but so long as | |
304 | * file servers have no limits, i don't think it matters | |
305 | */ | |
406c9a0d | 306 | if (vp->v_type == VREG && p && |
cc1475d2 | 307 | uio->uio_offset + uio->uio_resid > |
c6f5111d MK |
308 | p->p_rlimit[RLIMIT_FSIZE].rlim_cur) { |
309 | psignal(p, SIGXFSZ); | |
b373e060 KM |
310 | return (EFBIG); |
311 | } | |
cc1475d2 | 312 | resid = uio->uio_resid; |
b373e060 | 313 | osize = ip->i_size; |
e16fa59e | 314 | flags = 0; |
cc1475d2 | 315 | if (ioflag & IO_SYNC) |
e16fa59e | 316 | flags = B_SYNC; |
b373e060 | 317 | do { |
cc1475d2 KM |
318 | lbn = lblkno(fs, uio->uio_offset); |
319 | on = blkoff(fs, uio->uio_offset); | |
ffbb1df8 | 320 | n = min((unsigned)(fs->fs_bsize - on), uio->uio_resid); |
b373e060 | 321 | if (n < fs->fs_bsize) |
e16fa59e | 322 | flags |= B_CLRBUF; |
b373e060 | 323 | else |
e16fa59e | 324 | flags &= ~B_CLRBUF; |
e1b76915 | 325 | if (error = ffs_balloc(ip, lbn, on + n, ap->a_cred, &bp, flags)) |
b373e060 | 326 | break; |
e16fa59e | 327 | bn = bp->b_blkno; |
cc1475d2 KM |
328 | if (uio->uio_offset + n > ip->i_size) { |
329 | ip->i_size = uio->uio_offset + n; | |
406c9a0d | 330 | vnode_pager_setsize(vp, (u_long)ip->i_size); |
8986c97c | 331 | } |
b373e060 | 332 | size = blksize(fs, ip, lbn); |
406c9a0d | 333 | (void) vnode_pager_uncache(vp); |
ffbb1df8 | 334 | n = min(n, size - bp->b_resid); |
cc1475d2 KM |
335 | error = uiomove(bp->b_un.b_addr + on, n, uio); |
336 | if (ioflag & IO_SYNC) | |
b373e060 KM |
337 | (void) bwrite(bp); |
338 | else if (n + on == fs->fs_bsize) { | |
339 | bp->b_flags |= B_AGE; | |
340 | bawrite(bp); | |
341 | } else | |
342 | bdwrite(bp); | |
343 | ip->i_flag |= IUPD|ICHG; | |
e1b76915 | 344 | if (ap->a_cred->cr_uid != 0) |
b373e060 | 345 | ip->i_mode &= ~(ISUID|ISGID); |
cc1475d2 KM |
346 | } while (error == 0 && uio->uio_resid > 0 && n != 0); |
347 | if (error && (ioflag & IO_UNIT)) { | |
06337661 KM |
348 | (void)VOP_TRUNCATE(vp, osize, ioflag & IO_SYNC, ap->a_cred, |
349 | uio->uio_procp); | |
cc1475d2 KM |
350 | uio->uio_offset -= resid - uio->uio_resid; |
351 | uio->uio_resid = resid; | |
b373e060 | 352 | } |
d056f176 KM |
353 | if (!error && (ioflag & IO_SYNC)) { |
354 | tv = time; | |
355 | error = VOP_UPDATE(vp, &tv, &tv, 1); | |
356 | } | |
b373e060 KM |
357 | return (error); |
358 | } | |
359 | ||
4f083fd7 | 360 | /* |
7188ac27 | 361 | * Synch an open file. |
4f083fd7 | 362 | */ |
7188ac27 | 363 | /* ARGSUSED */ |
a6673c09 | 364 | int |
cc1475d2 | 365 | ffs_fsync(ap) |
06337661 KM |
366 | struct vop_fsync_args /* { |
367 | struct vnode *a_vp; | |
368 | struct ucred *a_cred; | |
369 | int a_waitfor; | |
370 | struct proc *a_p; | |
371 | } */ *ap; | |
528f664c | 372 | { |
06337661 KM |
373 | register struct vnode *vp = ap->a_vp; |
374 | struct inode *ip = VTOI(vp); | |
375 | register struct buf *bp; | |
d056f176 | 376 | struct timeval tv; |
06337661 KM |
377 | struct buf *nbp; |
378 | int s; | |
7188ac27 | 379 | |
06337661 KM |
380 | /* |
381 | * Flush all dirty buffers associated with a vnode. | |
382 | */ | |
383 | loop: | |
384 | s = splbio(); | |
385 | for (bp = vp->v_dirtyblkhd; bp; bp = nbp) { | |
386 | nbp = bp->b_blockf; | |
387 | if ((bp->b_flags & B_BUSY)) | |
388 | continue; | |
389 | if ((bp->b_flags & B_DELWRI) == 0) | |
390 | panic("ffs_fsync: not dirty"); | |
391 | bremfree(bp); | |
392 | bp->b_flags |= B_BUSY; | |
393 | splx(s); | |
394 | /* | |
395 | * Wait for I/O associated with indirect blocks to complete, | |
396 | * since there is no way to quickly wait for them below. | |
397 | */ | |
398 | if (bp->b_vp == vp || ap->a_waitfor == MNT_NOWAIT) | |
399 | (void) bawrite(bp); | |
400 | else | |
401 | (void) bwrite(bp); | |
402 | goto loop; | |
403 | } | |
404 | if (ap->a_waitfor == MNT_WAIT) { | |
405 | while (vp->v_numoutput) { | |
406 | vp->v_flag |= VBWAIT; | |
407 | sleep((caddr_t)&vp->v_numoutput, PRIBIO + 1); | |
408 | } | |
409 | #ifdef DIAGNOSTIC | |
410 | if (vp->v_dirtyblkhd) { | |
411 | vprint("ffs_fsync: dirty", vp); | |
412 | goto loop; | |
413 | } | |
414 | #endif | |
415 | } | |
416 | splx(s); | |
d056f176 KM |
417 | tv = time; |
418 | return (VOP_UPDATE(ap->a_vp, &tv, &tv, ap->a_waitfor == MNT_WAIT)); | |
9d5097aa KM |
419 | } |
420 | ||
421 | /* | |
422 | * Last reference to an inode, write the inode out and if necessary, | |
423 | * truncate and deallocate the file. | |
424 | */ | |
425 | int | |
cc1475d2 | 426 | ffs_inactive(ap) |
06337661 KM |
427 | struct vop_inactive_args /* { |
428 | struct vnode *a_vp; | |
429 | } */ *ap; | |
9d5097aa | 430 | { |
cc1475d2 KM |
431 | register struct vnode *vp = ap->a_vp; |
432 | register struct inode *ip = VTOI(vp); | |
d056f176 | 433 | struct timeval tv; |
9d5097aa KM |
434 | int mode, error; |
435 | extern int prtactive; | |
436 | ||
cc1475d2 KM |
437 | if (prtactive && vp->v_usecount != 0) |
438 | vprint("ffs_inactive: pushing active", vp); | |
9d5097aa KM |
439 | |
440 | /* Get rid of inodes related to stale file handles. */ | |
9d5097aa | 441 | if (ip->i_mode == 0) { |
cc1475d2 KM |
442 | if ((vp->v_flag & VXLOCK) == 0) |
443 | vgone(vp); | |
9d5097aa KM |
444 | return (0); |
445 | } | |
446 | ||
447 | error = 0; | |
448 | ILOCK(ip); | |
cc1475d2 | 449 | if (ip->i_nlink <= 0 && (vp->v_mount->mnt_flag & MNT_RDONLY) == 0) { |
9d5097aa KM |
450 | #ifdef QUOTA |
451 | if (!getinoquota(ip)) | |
452 | (void)chkiq(ip, -1, NOCRED, 0); | |
453 | #endif | |
06337661 | 454 | error = VOP_TRUNCATE(vp, (off_t)0, 0, NOCRED, NULL); |
9d5097aa KM |
455 | mode = ip->i_mode; |
456 | ip->i_mode = 0; | |
457 | ip->i_rdev = 0; | |
458 | ip->i_flag |= IUPD|ICHG; | |
cc1475d2 | 459 | VOP_VFREE(vp, ip->i_number, mode); |
9d5097aa | 460 | } |
d056f176 KM |
461 | if (ip->i_flag&(IUPD|IACC|ICHG|IMOD)) { |
462 | tv = time; | |
463 | VOP_UPDATE(vp, &tv, &tv, 0); | |
464 | } | |
9d5097aa KM |
465 | IUNLOCK(ip); |
466 | ip->i_flag = 0; | |
467 | /* | |
468 | * If we are done with the inode, reclaim it | |
469 | * so that it can be reused immediately. | |
470 | */ | |
cc1475d2 KM |
471 | if (vp->v_usecount == 0 && ip->i_mode == 0) |
472 | vgone(vp); | |
9d5097aa | 473 | return (error); |
4f083fd7 | 474 | } |