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716154c5 BB |
1 | /*****************************************************************************\ |
2 | * Copyright (C) 2007-2010 Lawrence Livermore National Security, LLC. | |
3 | * Copyright (C) 2007 The Regents of the University of California. | |
4 | * Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER). | |
5 | * Written by Brian Behlendorf <behlendorf1@llnl.gov>. | |
715f6251 | 6 | * UCRL-CODE-235197 |
7 | * | |
716154c5 | 8 | * This file is part of the SPL, Solaris Porting Layer. |
3d6af2dd | 9 | * For details, see <http://zfsonlinux.org/>. |
716154c5 BB |
10 | * |
11 | * The SPL is free software; you can redistribute it and/or modify it | |
12 | * under the terms of the GNU General Public License as published by the | |
13 | * Free Software Foundation; either version 2 of the License, or (at your | |
14 | * option) any later version. | |
715f6251 | 15 | * |
716154c5 | 16 | * The SPL is distributed in the hope that it will be useful, but WITHOUT |
715f6251 | 17 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
18 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
19 | * for more details. | |
20 | * | |
21 | * You should have received a copy of the GNU General Public License along | |
716154c5 BB |
22 | * with the SPL. If not, see <http://www.gnu.org/licenses/>. |
23 | ***************************************************************************** | |
24 | * Solaris Porting Layer (SPL) Vnode Implementation. | |
25 | \*****************************************************************************/ | |
715f6251 | 26 | |
4b171585 | 27 | #include <sys/vnode.h> |
bbdc6ae4 | 28 | #include <linux/falloc.h> |
55abb092 | 29 | #include <spl-debug.h> |
937879f1 | 30 | |
b17edc10 BB |
31 | #ifdef SS_DEBUG_SUBSYS |
32 | #undef SS_DEBUG_SUBSYS | |
937879f1 | 33 | #endif |
34 | ||
b17edc10 | 35 | #define SS_DEBUG_SUBSYS SS_VNODE |
937879f1 | 36 | |
51a727e9 | 37 | vnode_t *rootdir = (vnode_t *)0xabcd1234; |
4b171585 | 38 | EXPORT_SYMBOL(rootdir); |
39 | ||
7afde631 | 40 | static spl_kmem_cache_t *vn_cache; |
41 | static spl_kmem_cache_t *vn_file_cache; | |
e4f1d29f | 42 | |
83c623aa | 43 | static DEFINE_SPINLOCK(vn_file_lock); |
e4f1d29f | 44 | static LIST_HEAD(vn_file_list); |
af828292 | 45 | |
12ff95ff BB |
46 | #ifdef HAVE_KERN_PATH_PARENT_HEADER |
47 | #ifndef HAVE_KERN_PATH_PARENT_SYMBOL | |
48 | kern_path_parent_t kern_path_parent_fn = SYMBOL_POISON; | |
49 | EXPORT_SYMBOL(kern_path_parent_fn); | |
50 | #endif /* HAVE_KERN_PATH_PARENT_SYMBOL */ | |
51 | #endif /* HAVE_KERN_PATH_PARENT_HEADER */ | |
52 | ||
bcb15891 YS |
53 | #ifdef HAVE_KERN_PATH_LOCKED |
54 | kern_path_locked_t kern_path_locked_fn = SYMBOL_POISON; | |
55 | #endif /* HAVE_KERN_PATH_LOCKED */ | |
56 | ||
4295b530 BB |
57 | vtype_t |
58 | vn_mode_to_vtype(mode_t mode) | |
4b171585 | 59 | { |
60 | if (S_ISREG(mode)) | |
61 | return VREG; | |
62 | ||
63 | if (S_ISDIR(mode)) | |
64 | return VDIR; | |
65 | ||
66 | if (S_ISCHR(mode)) | |
67 | return VCHR; | |
68 | ||
69 | if (S_ISBLK(mode)) | |
70 | return VBLK; | |
71 | ||
72 | if (S_ISFIFO(mode)) | |
73 | return VFIFO; | |
74 | ||
75 | if (S_ISLNK(mode)) | |
76 | return VLNK; | |
77 | ||
78 | if (S_ISSOCK(mode)) | |
79 | return VSOCK; | |
80 | ||
81 | if (S_ISCHR(mode)) | |
82 | return VCHR; | |
83 | ||
84 | return VNON; | |
4295b530 BB |
85 | } /* vn_mode_to_vtype() */ |
86 | EXPORT_SYMBOL(vn_mode_to_vtype); | |
87 | ||
88 | mode_t | |
89 | vn_vtype_to_mode(vtype_t vtype) | |
90 | { | |
91 | if (vtype == VREG) | |
92 | return S_IFREG; | |
93 | ||
94 | if (vtype == VDIR) | |
95 | return S_IFDIR; | |
96 | ||
97 | if (vtype == VCHR) | |
98 | return S_IFCHR; | |
99 | ||
100 | if (vtype == VBLK) | |
101 | return S_IFBLK; | |
102 | ||
103 | if (vtype == VFIFO) | |
104 | return S_IFIFO; | |
105 | ||
106 | if (vtype == VLNK) | |
107 | return S_IFLNK; | |
108 | ||
109 | if (vtype == VSOCK) | |
110 | return S_IFSOCK; | |
111 | ||
112 | return VNON; | |
113 | } /* vn_vtype_to_mode() */ | |
114 | EXPORT_SYMBOL(vn_vtype_to_mode); | |
4b171585 | 115 | |
af828292 | 116 | vnode_t * |
117 | vn_alloc(int flag) | |
118 | { | |
119 | vnode_t *vp; | |
b17edc10 | 120 | SENTRY; |
af828292 | 121 | |
122 | vp = kmem_cache_alloc(vn_cache, flag); | |
af828292 | 123 | if (vp != NULL) { |
e4f1d29f | 124 | vp->v_file = NULL; |
af828292 | 125 | vp->v_type = 0; |
126 | } | |
127 | ||
b17edc10 | 128 | SRETURN(vp); |
af828292 | 129 | } /* vn_alloc() */ |
130 | EXPORT_SYMBOL(vn_alloc); | |
131 | ||
132 | void | |
133 | vn_free(vnode_t *vp) | |
134 | { | |
b17edc10 | 135 | SENTRY; |
af828292 | 136 | kmem_cache_free(vn_cache, vp); |
b17edc10 | 137 | SEXIT; |
af828292 | 138 | } /* vn_free() */ |
139 | EXPORT_SYMBOL(vn_free); | |
140 | ||
0b3cf046 | 141 | int |
af828292 | 142 | vn_open(const char *path, uio_seg_t seg, int flags, int mode, |
4b171585 | 143 | vnode_t **vpp, int x1, void *x2) |
0b3cf046 | 144 | { |
f7e8739c RC |
145 | struct file *fp; |
146 | struct kstat stat; | |
147 | int rc, saved_umask = 0; | |
4be55565 | 148 | gfp_t saved_gfp; |
0b3cf046 | 149 | vnode_t *vp; |
b17edc10 | 150 | SENTRY; |
0b3cf046 | 151 | |
937879f1 | 152 | ASSERT(flags & (FWRITE | FREAD)); |
153 | ASSERT(seg == UIO_SYSSPACE); | |
154 | ASSERT(vpp); | |
4b171585 | 155 | *vpp = NULL; |
156 | ||
157 | if (!(flags & FCREAT) && (flags & FWRITE)) | |
158 | flags |= FEXCL; | |
159 | ||
728b9dd8 | 160 | /* Note for filp_open() the two low bits must be remapped to mean: |
161 | * 01 - read-only -> 00 read-only | |
162 | * 10 - write-only -> 01 write-only | |
163 | * 11 - read-write -> 10 read-write | |
164 | */ | |
165 | flags--; | |
0b3cf046 | 166 | |
167 | if (flags & FCREAT) | |
4b171585 | 168 | saved_umask = xchg(¤t->fs->umask, 0); |
0b3cf046 | 169 | |
f7e8739c | 170 | fp = filp_open(path, flags, mode); |
0b3cf046 | 171 | |
172 | if (flags & FCREAT) | |
4b171585 | 173 | (void)xchg(¤t->fs->umask, saved_umask); |
0b3cf046 | 174 | |
f7e8739c | 175 | if (IS_ERR(fp)) |
b17edc10 | 176 | SRETURN(-PTR_ERR(fp)); |
0b3cf046 | 177 | |
f7e8739c | 178 | rc = vfs_getattr(fp->f_vfsmnt, fp->f_dentry, &stat); |
4b171585 | 179 | if (rc) { |
180 | filp_close(fp, 0); | |
b17edc10 | 181 | SRETURN(-rc); |
0b3cf046 | 182 | } |
183 | ||
af828292 | 184 | vp = vn_alloc(KM_SLEEP); |
4b171585 | 185 | if (!vp) { |
186 | filp_close(fp, 0); | |
b17edc10 | 187 | SRETURN(ENOMEM); |
4b171585 | 188 | } |
0b3cf046 | 189 | |
4be55565 LW |
190 | saved_gfp = mapping_gfp_mask(fp->f_mapping); |
191 | mapping_set_gfp_mask(fp->f_mapping, saved_gfp & ~(__GFP_IO|__GFP_FS)); | |
192 | ||
e4f1d29f | 193 | mutex_enter(&vp->v_lock); |
4295b530 | 194 | vp->v_type = vn_mode_to_vtype(stat.mode); |
e4f1d29f | 195 | vp->v_file = fp; |
4be55565 | 196 | vp->v_gfp_mask = saved_gfp; |
4b171585 | 197 | *vpp = vp; |
e4f1d29f | 198 | mutex_exit(&vp->v_lock); |
0b3cf046 | 199 | |
b17edc10 | 200 | SRETURN(0); |
4b171585 | 201 | } /* vn_open() */ |
202 | EXPORT_SYMBOL(vn_open); | |
0b3cf046 | 203 | |
0b3cf046 | 204 | int |
af828292 | 205 | vn_openat(const char *path, uio_seg_t seg, int flags, int mode, |
4b171585 | 206 | vnode_t **vpp, int x1, void *x2, vnode_t *vp, int fd) |
0b3cf046 | 207 | { |
4b171585 | 208 | char *realpath; |
12018327 | 209 | int len, rc; |
b17edc10 | 210 | SENTRY; |
0b3cf046 | 211 | |
937879f1 | 212 | ASSERT(vp == rootdir); |
0b3cf046 | 213 | |
12018327 | 214 | len = strlen(path) + 2; |
215 | realpath = kmalloc(len, GFP_KERNEL); | |
4b171585 | 216 | if (!realpath) |
b17edc10 | 217 | SRETURN(ENOMEM); |
0b3cf046 | 218 | |
12018327 | 219 | (void)snprintf(realpath, len, "/%s", path); |
4b171585 | 220 | rc = vn_open(realpath, seg, flags, mode, vpp, x1, x2); |
4b171585 | 221 | kfree(realpath); |
222 | ||
b17edc10 | 223 | SRETURN(rc); |
4b171585 | 224 | } /* vn_openat() */ |
225 | EXPORT_SYMBOL(vn_openat); | |
0b3cf046 | 226 | |
0b3cf046 | 227 | int |
4b171585 | 228 | vn_rdwr(uio_rw_t uio, vnode_t *vp, void *addr, ssize_t len, offset_t off, |
663e02a1 | 229 | uio_seg_t seg, int ioflag, rlim64_t x2, void *x3, ssize_t *residp) |
0b3cf046 | 230 | { |
4b171585 | 231 | loff_t offset; |
232 | mm_segment_t saved_fs; | |
233 | struct file *fp; | |
234 | int rc; | |
b17edc10 | 235 | SENTRY; |
4b171585 | 236 | |
937879f1 | 237 | ASSERT(uio == UIO_WRITE || uio == UIO_READ); |
238 | ASSERT(vp); | |
239 | ASSERT(vp->v_file); | |
240 | ASSERT(seg == UIO_SYSSPACE); | |
663e02a1 | 241 | ASSERT((ioflag & ~FAPPEND) == 0); |
937879f1 | 242 | ASSERT(x2 == RLIM64_INFINITY); |
4b171585 | 243 | |
e4f1d29f | 244 | fp = vp->v_file; |
4b171585 | 245 | |
663e02a1 RC |
246 | offset = off; |
247 | if (ioflag & FAPPEND) | |
248 | offset = fp->f_pos; | |
249 | ||
4b171585 | 250 | /* Writable user data segment must be briefly increased for this |
251 | * process so we can use the user space read call paths to write | |
252 | * in to memory allocated by the kernel. */ | |
253 | saved_fs = get_fs(); | |
254 | set_fs(get_ds()); | |
255 | ||
256 | if (uio & UIO_WRITE) | |
257 | rc = vfs_write(fp, addr, len, &offset); | |
258 | else | |
259 | rc = vfs_read(fp, addr, len, &offset); | |
260 | ||
261 | set_fs(saved_fs); | |
f3989ed3 | 262 | fp->f_pos = offset; |
4b171585 | 263 | |
264 | if (rc < 0) | |
b17edc10 | 265 | SRETURN(-rc); |
0b3cf046 | 266 | |
4b171585 | 267 | if (residp) { |
268 | *residp = len - rc; | |
0b3cf046 | 269 | } else { |
4b171585 | 270 | if (rc != len) |
b17edc10 | 271 | SRETURN(EIO); |
0b3cf046 | 272 | } |
273 | ||
b17edc10 | 274 | SRETURN(0); |
4b171585 | 275 | } /* vn_rdwr() */ |
276 | EXPORT_SYMBOL(vn_rdwr); | |
277 | ||
278 | int | |
2f5d55aa | 279 | vn_close(vnode_t *vp, int flags, int x1, int x2, void *x3, void *x4) |
4b171585 | 280 | { |
281 | int rc; | |
b17edc10 | 282 | SENTRY; |
4b171585 | 283 | |
937879f1 | 284 | ASSERT(vp); |
285 | ASSERT(vp->v_file); | |
4b171585 | 286 | |
4be55565 | 287 | mapping_set_gfp_mask(vp->v_file->f_mapping, vp->v_gfp_mask); |
97735c39 BB |
288 | rc = filp_close(vp->v_file, 0); |
289 | vn_free(vp); | |
4b171585 | 290 | |
b17edc10 | 291 | SRETURN(-rc); |
4b171585 | 292 | } /* vn_close() */ |
293 | EXPORT_SYMBOL(vn_close); | |
294 | ||
97735c39 BB |
295 | /* vn_seek() does not actually seek it only performs bounds checking on the |
296 | * proposed seek. We perform minimal checking and allow vn_rdwr() to catch | |
297 | * anything more serious. */ | |
298 | int | |
47995fa6 | 299 | vn_seek(vnode_t *vp, offset_t ooff, offset_t *noffp, void *ct) |
97735c39 BB |
300 | { |
301 | return ((*noffp < 0 || *noffp > MAXOFFSET_T) ? EINVAL : 0); | |
302 | } | |
303 | EXPORT_SYMBOL(vn_seek); | |
304 | ||
bcb15891 YS |
305 | #ifdef HAVE_KERN_PATH_LOCKED |
306 | /* Based on do_unlinkat() from linux/fs/namei.c */ | |
307 | int | |
308 | vn_remove(const char *path, uio_seg_t seg, int flags) | |
309 | { | |
310 | struct dentry *dentry; | |
311 | struct path parent; | |
312 | struct inode *inode = NULL; | |
313 | int rc = 0; | |
314 | SENTRY; | |
315 | ||
316 | ASSERT(seg == UIO_SYSSPACE); | |
317 | ASSERT(flags == RMFILE); | |
318 | ||
319 | dentry = spl_kern_path_locked(path, &parent); | |
320 | rc = PTR_ERR(dentry); | |
321 | if (!IS_ERR(dentry)) { | |
322 | if (parent.dentry->d_name.name[parent.dentry->d_name.len]) | |
323 | SGOTO(slashes, rc = 0); | |
324 | ||
325 | inode = dentry->d_inode; | |
326 | if (!inode) | |
327 | SGOTO(slashes, rc = 0); | |
328 | ||
329 | if (inode) | |
330 | ihold(inode); | |
331 | ||
332 | rc = vfs_unlink(parent.dentry->d_inode, dentry); | |
333 | exit1: | |
334 | dput(dentry); | |
053678f3 BB |
335 | } else { |
336 | return (-rc); | |
bcb15891 YS |
337 | } |
338 | ||
339 | spl_inode_unlock(parent.dentry->d_inode); | |
340 | if (inode) | |
341 | iput(inode); /* truncate the inode here */ | |
342 | ||
343 | path_put(&parent); | |
344 | SRETURN(-rc); | |
345 | ||
346 | slashes: | |
347 | rc = !dentry->d_inode ? -ENOENT : | |
348 | S_ISDIR(dentry->d_inode->i_mode) ? -EISDIR : -ENOTDIR; | |
349 | SGOTO(exit1, rc); | |
350 | } /* vn_remove() */ | |
351 | EXPORT_SYMBOL(vn_remove); | |
352 | ||
353 | /* Based on do_rename() from linux/fs/namei.c */ | |
354 | int | |
355 | vn_rename(const char *oldname, const char *newname, int x1) | |
356 | { | |
357 | struct dentry *old_dir, *new_dir; | |
358 | struct dentry *old_dentry, *new_dentry; | |
359 | struct dentry *trap; | |
360 | struct path old_parent, new_parent; | |
361 | int rc = 0; | |
362 | SENTRY; | |
363 | ||
364 | old_dentry = spl_kern_path_locked(oldname, &old_parent); | |
365 | if (IS_ERR(old_dentry)) | |
366 | SGOTO(exit, rc = PTR_ERR(old_dentry)); | |
367 | ||
368 | spl_inode_unlock(old_parent.dentry->d_inode); | |
369 | ||
370 | new_dentry = spl_kern_path_locked(newname, &new_parent); | |
371 | if (IS_ERR(new_dentry)) | |
372 | SGOTO(exit2, rc = PTR_ERR(new_dentry)); | |
373 | ||
374 | spl_inode_unlock(new_parent.dentry->d_inode); | |
375 | ||
376 | rc = -EXDEV; | |
377 | if (old_parent.mnt != new_parent.mnt) | |
378 | SGOTO(exit3, rc); | |
379 | ||
380 | old_dir = old_parent.dentry; | |
381 | new_dir = new_parent.dentry; | |
382 | trap = lock_rename(new_dir, old_dir); | |
383 | ||
384 | /* source should not be ancestor of target */ | |
385 | rc = -EINVAL; | |
386 | if (old_dentry == trap) | |
387 | SGOTO(exit4, rc); | |
388 | ||
389 | /* target should not be an ancestor of source */ | |
390 | rc = -ENOTEMPTY; | |
391 | if (new_dentry == trap) | |
392 | SGOTO(exit4, rc); | |
393 | ||
394 | /* source must exist */ | |
395 | rc = -ENOENT; | |
396 | if (!old_dentry->d_inode) | |
397 | SGOTO(exit4, rc); | |
398 | ||
399 | /* unless the source is a directory trailing slashes give -ENOTDIR */ | |
400 | if (!S_ISDIR(old_dentry->d_inode->i_mode)) { | |
401 | rc = -ENOTDIR; | |
402 | if (old_dentry->d_name.name[old_dentry->d_name.len]) | |
403 | SGOTO(exit4, rc); | |
404 | if (new_dentry->d_name.name[new_dentry->d_name.len]) | |
405 | SGOTO(exit4, rc); | |
406 | } | |
407 | ||
408 | #ifdef HAVE_4ARGS_VFS_RENAME | |
409 | rc = vfs_rename(old_dir->d_inode, old_dentry, | |
410 | new_dir->d_inode, new_dentry); | |
411 | #else | |
412 | rc = vfs_rename(old_dir->d_inode, old_dentry, oldnd.nd_mnt, | |
413 | new_dir->d_inode, new_dentry, newnd.nd_mnt); | |
414 | #endif /* HAVE_4ARGS_VFS_RENAME */ | |
415 | exit4: | |
416 | unlock_rename(new_dir, old_dir); | |
417 | exit3: | |
418 | dput(new_dentry); | |
419 | path_put(&new_parent); | |
420 | exit2: | |
421 | dput(old_dentry); | |
422 | path_put(&old_parent); | |
423 | exit: | |
424 | SRETURN(-rc); | |
425 | } | |
426 | EXPORT_SYMBOL(vn_rename); | |
427 | ||
428 | #else | |
97735c39 BB |
429 | static struct dentry * |
430 | vn_lookup_hash(struct nameidata *nd) | |
4b171585 | 431 | { |
849c50e7 BB |
432 | return lookup_one_len((const char *)nd->last.name, |
433 | nd->nd_dentry, nd->last.len); | |
4b171585 | 434 | } /* lookup_hash() */ |
435 | ||
97735c39 BB |
436 | static void |
437 | vn_path_release(struct nameidata *nd) | |
57d86234 | 438 | { |
439 | dput(nd->nd_dentry); | |
440 | mntput(nd->nd_mnt); | |
441 | } | |
442 | ||
4b171585 | 443 | /* Modified do_unlinkat() from linux/fs/namei.c, only uses exported symbols */ |
444 | int | |
af828292 | 445 | vn_remove(const char *path, uio_seg_t seg, int flags) |
4b171585 | 446 | { |
447 | struct dentry *dentry; | |
448 | struct nameidata nd; | |
449 | struct inode *inode = NULL; | |
450 | int rc = 0; | |
b17edc10 | 451 | SENTRY; |
4b171585 | 452 | |
3d061e9d | 453 | ASSERT(seg == UIO_SYSSPACE); |
454 | ASSERT(flags == RMFILE); | |
2f5d55aa | 455 | |
b1cbc461 | 456 | rc = spl_kern_path_parent(path, &nd); |
4b171585 | 457 | if (rc) |
b17edc10 | 458 | SGOTO(exit, rc); |
4b171585 | 459 | |
460 | rc = -EISDIR; | |
461 | if (nd.last_type != LAST_NORM) | |
b17edc10 | 462 | SGOTO(exit1, rc); |
4b171585 | 463 | |
6bf4d76f | 464 | spl_inode_lock_nested(nd.nd_dentry->d_inode, I_MUTEX_PARENT); |
57d86234 | 465 | dentry = vn_lookup_hash(&nd); |
4b171585 | 466 | rc = PTR_ERR(dentry); |
467 | if (!IS_ERR(dentry)) { | |
468 | /* Why not before? Because we want correct rc value */ | |
469 | if (nd.last.name[nd.last.len]) | |
b17edc10 | 470 | SGOTO(slashes, rc); |
937879f1 | 471 | |
4b171585 | 472 | inode = dentry->d_inode; |
473 | if (inode) | |
474 | atomic_inc(&inode->i_count); | |
a093c6a4 | 475 | #ifdef HAVE_2ARGS_VFS_UNLINK |
57d86234 | 476 | rc = vfs_unlink(nd.nd_dentry->d_inode, dentry); |
a093c6a4 | 477 | #else |
21411161 | 478 | rc = vfs_unlink(nd.nd_dentry->d_inode, dentry, nd.nd_mnt); |
a093c6a4 | 479 | #endif /* HAVE_2ARGS_VFS_UNLINK */ |
4b171585 | 480 | exit2: |
481 | dput(dentry); | |
482 | } | |
6bf4d76f BB |
483 | |
484 | spl_inode_unlock(nd.nd_dentry->d_inode); | |
4b171585 | 485 | if (inode) |
486 | iput(inode); /* truncate the inode here */ | |
487 | exit1: | |
57d86234 | 488 | vn_path_release(&nd); |
4b171585 | 489 | exit: |
b17edc10 | 490 | SRETURN(-rc); |
4b171585 | 491 | |
492 | slashes: | |
493 | rc = !dentry->d_inode ? -ENOENT : | |
494 | S_ISDIR(dentry->d_inode->i_mode) ? -EISDIR : -ENOTDIR; | |
b17edc10 | 495 | SGOTO(exit2, rc); |
4b171585 | 496 | } /* vn_remove() */ |
497 | EXPORT_SYMBOL(vn_remove); | |
498 | ||
499 | /* Modified do_rename() from linux/fs/namei.c, only uses exported symbols */ | |
500 | int | |
501 | vn_rename(const char *oldname, const char *newname, int x1) | |
502 | { | |
a093c6a4 BB |
503 | struct dentry *old_dir, *new_dir; |
504 | struct dentry *old_dentry, *new_dentry; | |
505 | struct dentry *trap; | |
4b171585 | 506 | struct nameidata oldnd, newnd; |
507 | int rc = 0; | |
b17edc10 | 508 | SENTRY; |
4b171585 | 509 | |
b1cbc461 | 510 | rc = spl_kern_path_parent(oldname, &oldnd); |
4b171585 | 511 | if (rc) |
b17edc10 | 512 | SGOTO(exit, rc); |
4b171585 | 513 | |
b1cbc461 | 514 | rc = spl_kern_path_parent(newname, &newnd); |
4b171585 | 515 | if (rc) |
b17edc10 | 516 | SGOTO(exit1, rc); |
4b171585 | 517 | |
518 | rc = -EXDEV; | |
57d86234 | 519 | if (oldnd.nd_mnt != newnd.nd_mnt) |
b17edc10 | 520 | SGOTO(exit2, rc); |
4b171585 | 521 | |
57d86234 | 522 | old_dir = oldnd.nd_dentry; |
4b171585 | 523 | rc = -EBUSY; |
524 | if (oldnd.last_type != LAST_NORM) | |
b17edc10 | 525 | SGOTO(exit2, rc); |
4b171585 | 526 | |
57d86234 | 527 | new_dir = newnd.nd_dentry; |
4b171585 | 528 | if (newnd.last_type != LAST_NORM) |
b17edc10 | 529 | SGOTO(exit2, rc); |
4b171585 | 530 | |
531 | trap = lock_rename(new_dir, old_dir); | |
532 | ||
57d86234 | 533 | old_dentry = vn_lookup_hash(&oldnd); |
4b171585 | 534 | |
535 | rc = PTR_ERR(old_dentry); | |
536 | if (IS_ERR(old_dentry)) | |
b17edc10 | 537 | SGOTO(exit3, rc); |
4b171585 | 538 | |
539 | /* source must exist */ | |
540 | rc = -ENOENT; | |
541 | if (!old_dentry->d_inode) | |
b17edc10 | 542 | SGOTO(exit4, rc); |
4b171585 | 543 | |
544 | /* unless the source is a directory trailing slashes give -ENOTDIR */ | |
545 | if (!S_ISDIR(old_dentry->d_inode->i_mode)) { | |
546 | rc = -ENOTDIR; | |
547 | if (oldnd.last.name[oldnd.last.len]) | |
b17edc10 | 548 | SGOTO(exit4, rc); |
4b171585 | 549 | if (newnd.last.name[newnd.last.len]) |
b17edc10 | 550 | SGOTO(exit4, rc); |
4b171585 | 551 | } |
552 | ||
553 | /* source should not be ancestor of target */ | |
554 | rc = -EINVAL; | |
555 | if (old_dentry == trap) | |
b17edc10 | 556 | SGOTO(exit4, rc); |
4b171585 | 557 | |
57d86234 | 558 | new_dentry = vn_lookup_hash(&newnd); |
4b171585 | 559 | rc = PTR_ERR(new_dentry); |
560 | if (IS_ERR(new_dentry)) | |
b17edc10 | 561 | SGOTO(exit4, rc); |
4b171585 | 562 | |
563 | /* target should not be an ancestor of source */ | |
564 | rc = -ENOTEMPTY; | |
565 | if (new_dentry == trap) | |
b17edc10 | 566 | SGOTO(exit5, rc); |
4b171585 | 567 | |
a093c6a4 | 568 | #ifdef HAVE_4ARGS_VFS_RENAME |
4b171585 | 569 | rc = vfs_rename(old_dir->d_inode, old_dentry, |
570 | new_dir->d_inode, new_dentry); | |
a093c6a4 | 571 | #else |
21411161 BB |
572 | rc = vfs_rename(old_dir->d_inode, old_dentry, oldnd.nd_mnt, |
573 | new_dir->d_inode, new_dentry, newnd.nd_mnt); | |
a093c6a4 | 574 | #endif /* HAVE_4ARGS_VFS_RENAME */ |
4b171585 | 575 | exit5: |
576 | dput(new_dentry); | |
577 | exit4: | |
578 | dput(old_dentry); | |
579 | exit3: | |
580 | unlock_rename(new_dir, old_dir); | |
581 | exit2: | |
57d86234 | 582 | vn_path_release(&newnd); |
4b171585 | 583 | exit1: |
57d86234 | 584 | vn_path_release(&oldnd); |
4b171585 | 585 | exit: |
b17edc10 | 586 | SRETURN(-rc); |
0b3cf046 | 587 | } |
4b171585 | 588 | EXPORT_SYMBOL(vn_rename); |
bcb15891 | 589 | #endif /* HAVE_KERN_PATH_LOCKED */ |
0b3cf046 | 590 | |
4b171585 | 591 | int |
36e6f861 | 592 | vn_getattr(vnode_t *vp, vattr_t *vap, int flags, void *x3, void *x4) |
0b3cf046 | 593 | { |
4b171585 | 594 | struct file *fp; |
dcd9cb5a | 595 | struct kstat stat; |
4b171585 | 596 | int rc; |
b17edc10 | 597 | SENTRY; |
4b171585 | 598 | |
937879f1 | 599 | ASSERT(vp); |
600 | ASSERT(vp->v_file); | |
601 | ASSERT(vap); | |
4b171585 | 602 | |
e4f1d29f | 603 | fp = vp->v_file; |
4b171585 | 604 | |
605 | rc = vfs_getattr(fp->f_vfsmnt, fp->f_dentry, &stat); | |
606 | if (rc) | |
b17edc10 | 607 | SRETURN(-rc); |
4b171585 | 608 | |
4295b530 | 609 | vap->va_type = vn_mode_to_vtype(stat.mode); |
4b171585 | 610 | vap->va_mode = stat.mode; |
611 | vap->va_uid = stat.uid; | |
612 | vap->va_gid = stat.gid; | |
613 | vap->va_fsid = 0; | |
614 | vap->va_nodeid = stat.ino; | |
615 | vap->va_nlink = stat.nlink; | |
616 | vap->va_size = stat.size; | |
47995fa6 | 617 | vap->va_blksize = stat.blksize; |
dcd9cb5a BB |
618 | vap->va_atime = stat.atime; |
619 | vap->va_mtime = stat.mtime; | |
620 | vap->va_ctime = stat.ctime; | |
4b171585 | 621 | vap->va_rdev = stat.rdev; |
dcd9cb5a | 622 | vap->va_nblocks = stat.blocks; |
4b171585 | 623 | |
dcd9cb5a | 624 | SRETURN(0); |
0b3cf046 | 625 | } |
4b171585 | 626 | EXPORT_SYMBOL(vn_getattr); |
627 | ||
2f5d55aa | 628 | int vn_fsync(vnode_t *vp, int flags, void *x3, void *x4) |
4b171585 | 629 | { |
36e6f861 | 630 | int datasync = 0; |
b17edc10 | 631 | SENTRY; |
36e6f861 | 632 | |
937879f1 | 633 | ASSERT(vp); |
634 | ASSERT(vp->v_file); | |
4b171585 | 635 | |
36e6f861 | 636 | if (flags & FDSYNC) |
637 | datasync = 1; | |
638 | ||
b17edc10 | 639 | SRETURN(-spl_filp_fsync(vp->v_file, datasync)); |
4b171585 | 640 | } /* vn_fsync() */ |
641 | EXPORT_SYMBOL(vn_fsync); | |
af828292 | 642 | |
bbdc6ae4 ED |
643 | int vn_space(vnode_t *vp, int cmd, struct flock *bfp, int flag, |
644 | offset_t offset, void *x6, void *x7) | |
645 | { | |
646 | int error = EOPNOTSUPP; | |
647 | SENTRY; | |
648 | ||
649 | if (cmd != F_FREESP || bfp->l_whence != 0) | |
650 | SRETURN(EOPNOTSUPP); | |
651 | ||
652 | ASSERT(vp); | |
653 | ASSERT(vp->v_file); | |
654 | ASSERT(bfp->l_start >= 0 && bfp->l_len > 0); | |
655 | ||
656 | #ifdef FALLOC_FL_PUNCH_HOLE | |
1c7b3eaf BB |
657 | /* |
658 | * When supported by the underlying file system preferentially | |
659 | * use the fallocate() callback to preallocate the space. | |
660 | */ | |
661 | error = -spl_filp_fallocate(vp->v_file, | |
662 | FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE, | |
663 | bfp->l_start, bfp->l_len); | |
664 | if (error == 0) | |
665 | SRETURN(0); | |
bbdc6ae4 ED |
666 | #endif |
667 | ||
668 | #ifdef HAVE_INODE_TRUNCATE_RANGE | |
669 | if (vp->v_file->f_dentry && vp->v_file->f_dentry->d_inode && | |
670 | vp->v_file->f_dentry->d_inode->i_op && | |
671 | vp->v_file->f_dentry->d_inode->i_op->truncate_range) { | |
672 | off_t end = bfp->l_start + bfp->l_len; | |
673 | /* | |
674 | * Judging from the code in shmem_truncate_range(), | |
675 | * it seems the kernel expects the end offset to be | |
676 | * inclusive and aligned to the end of a page. | |
677 | */ | |
678 | if (end % PAGE_SIZE != 0) { | |
679 | end &= ~(off_t)(PAGE_SIZE - 1); | |
680 | if (end <= bfp->l_start) | |
681 | SRETURN(0); | |
682 | } | |
683 | --end; | |
684 | ||
685 | vp->v_file->f_dentry->d_inode->i_op->truncate_range( | |
686 | vp->v_file->f_dentry->d_inode, | |
687 | bfp->l_start, end | |
688 | ); | |
689 | SRETURN(0); | |
690 | } | |
691 | #endif | |
692 | ||
693 | SRETURN(error); | |
694 | } | |
695 | EXPORT_SYMBOL(vn_space); | |
696 | ||
e4f1d29f | 697 | /* Function must be called while holding the vn_file_lock */ |
698 | static file_t * | |
699 | file_find(int fd) | |
700 | { | |
701 | file_t *fp; | |
702 | ||
937879f1 | 703 | ASSERT(spin_is_locked(&vn_file_lock)); |
e4f1d29f | 704 | |
705 | list_for_each_entry(fp, &vn_file_list, f_list) { | |
763b2f3b | 706 | if (fd == fp->f_fd && fp->f_task == current) { |
937879f1 | 707 | ASSERT(atomic_read(&fp->f_ref) != 0); |
e4f1d29f | 708 | return fp; |
709 | } | |
710 | } | |
711 | ||
712 | return NULL; | |
713 | } /* file_find() */ | |
714 | ||
715 | file_t * | |
716 | vn_getf(int fd) | |
717 | { | |
718 | struct kstat stat; | |
719 | struct file *lfp; | |
720 | file_t *fp; | |
721 | vnode_t *vp; | |
937879f1 | 722 | int rc = 0; |
b17edc10 | 723 | SENTRY; |
e4f1d29f | 724 | |
725 | /* Already open just take an extra reference */ | |
726 | spin_lock(&vn_file_lock); | |
727 | ||
728 | fp = file_find(fd); | |
729 | if (fp) { | |
730 | atomic_inc(&fp->f_ref); | |
731 | spin_unlock(&vn_file_lock); | |
b17edc10 | 732 | SRETURN(fp); |
e4f1d29f | 733 | } |
734 | ||
735 | spin_unlock(&vn_file_lock); | |
736 | ||
737 | /* File was not yet opened create the object and setup */ | |
4afaaefa | 738 | fp = kmem_cache_alloc(vn_file_cache, KM_SLEEP); |
e4f1d29f | 739 | if (fp == NULL) |
b17edc10 | 740 | SGOTO(out, rc); |
e4f1d29f | 741 | |
742 | mutex_enter(&fp->f_lock); | |
743 | ||
744 | fp->f_fd = fd; | |
763b2f3b | 745 | fp->f_task = current; |
e4f1d29f | 746 | fp->f_offset = 0; |
747 | atomic_inc(&fp->f_ref); | |
748 | ||
749 | lfp = fget(fd); | |
750 | if (lfp == NULL) | |
b17edc10 | 751 | SGOTO(out_mutex, rc); |
e4f1d29f | 752 | |
753 | vp = vn_alloc(KM_SLEEP); | |
754 | if (vp == NULL) | |
b17edc10 | 755 | SGOTO(out_fget, rc); |
e4f1d29f | 756 | |
757 | if (vfs_getattr(lfp->f_vfsmnt, lfp->f_dentry, &stat)) | |
b17edc10 | 758 | SGOTO(out_vnode, rc); |
e4f1d29f | 759 | |
760 | mutex_enter(&vp->v_lock); | |
4295b530 | 761 | vp->v_type = vn_mode_to_vtype(stat.mode); |
e4f1d29f | 762 | vp->v_file = lfp; |
763 | mutex_exit(&vp->v_lock); | |
764 | ||
765 | fp->f_vnode = vp; | |
766 | fp->f_file = lfp; | |
767 | ||
768 | /* Put it on the tracking list */ | |
769 | spin_lock(&vn_file_lock); | |
770 | list_add(&fp->f_list, &vn_file_list); | |
771 | spin_unlock(&vn_file_lock); | |
772 | ||
773 | mutex_exit(&fp->f_lock); | |
b17edc10 | 774 | SRETURN(fp); |
e4f1d29f | 775 | |
776 | out_vnode: | |
e4f1d29f | 777 | vn_free(vp); |
778 | out_fget: | |
e4f1d29f | 779 | fput(lfp); |
780 | out_mutex: | |
e4f1d29f | 781 | mutex_exit(&fp->f_lock); |
782 | kmem_cache_free(vn_file_cache, fp); | |
783 | out: | |
b17edc10 | 784 | SRETURN(NULL); |
e4f1d29f | 785 | } /* getf() */ |
786 | EXPORT_SYMBOL(getf); | |
787 | ||
788 | static void releasef_locked(file_t *fp) | |
789 | { | |
937879f1 | 790 | ASSERT(fp->f_file); |
791 | ASSERT(fp->f_vnode); | |
e4f1d29f | 792 | |
793 | /* Unlinked from list, no refs, safe to free outside mutex */ | |
794 | fput(fp->f_file); | |
795 | vn_free(fp->f_vnode); | |
796 | ||
797 | kmem_cache_free(vn_file_cache, fp); | |
798 | } | |
799 | ||
800 | void | |
801 | vn_releasef(int fd) | |
802 | { | |
803 | file_t *fp; | |
b17edc10 | 804 | SENTRY; |
e4f1d29f | 805 | |
806 | spin_lock(&vn_file_lock); | |
807 | fp = file_find(fd); | |
808 | if (fp) { | |
809 | atomic_dec(&fp->f_ref); | |
810 | if (atomic_read(&fp->f_ref) > 0) { | |
811 | spin_unlock(&vn_file_lock); | |
b17edc10 | 812 | SEXIT; |
e4f1d29f | 813 | return; |
814 | } | |
815 | ||
816 | list_del(&fp->f_list); | |
817 | releasef_locked(fp); | |
818 | } | |
819 | spin_unlock(&vn_file_lock); | |
820 | ||
b17edc10 | 821 | SEXIT; |
e4f1d29f | 822 | return; |
823 | } /* releasef() */ | |
824 | EXPORT_SYMBOL(releasef); | |
825 | ||
51a727e9 BB |
826 | #ifndef HAVE_SET_FS_PWD |
827 | # ifdef HAVE_2ARGS_SET_FS_PWD | |
828 | /* Used from 2.6.25 - 2.6.31+ */ | |
829 | void | |
830 | set_fs_pwd(struct fs_struct *fs, struct path *path) | |
831 | { | |
9b2048c2 BB |
832 | struct path old_pwd; |
833 | ||
834 | # ifdef HAVE_FS_STRUCT_SPINLOCK | |
835 | spin_lock(&fs->lock); | |
836 | old_pwd = fs->pwd; | |
837 | fs->pwd = *path; | |
838 | path_get(path); | |
839 | spin_unlock(&fs->lock); | |
840 | # else | |
841 | write_lock(&fs->lock); | |
842 | old_pwd = fs->pwd; | |
843 | fs->pwd = *path; | |
844 | path_get(path); | |
845 | write_unlock(&fs->lock); | |
846 | # endif /* HAVE_FS_STRUCT_SPINLOCK */ | |
847 | ||
848 | if (old_pwd.dentry) | |
849 | path_put(&old_pwd); | |
51a727e9 BB |
850 | } |
851 | # else | |
852 | /* Used from 2.6.11 - 2.6.24 */ | |
853 | void | |
854 | set_fs_pwd(struct fs_struct *fs, struct vfsmount *mnt, struct dentry *dentry) | |
855 | { | |
856 | struct dentry *old_pwd; | |
857 | struct vfsmount *old_pwdmnt; | |
858 | ||
859 | write_lock(&fs->lock); | |
860 | old_pwd = fs->pwd; | |
861 | old_pwdmnt = fs->pwdmnt; | |
862 | fs->pwdmnt = mntget(mnt); | |
863 | fs->pwd = dget(dentry); | |
864 | write_unlock(&fs->lock); | |
865 | ||
866 | if (old_pwd) { | |
867 | dput(old_pwd); | |
868 | mntput(old_pwdmnt); | |
869 | } | |
870 | } | |
871 | # endif /* HAVE_2ARGS_SET_FS_PWD */ | |
872 | #endif /* HAVE_SET_FS_PWD */ | |
873 | ||
874 | int | |
875 | vn_set_pwd(const char *filename) | |
876 | { | |
7119bf70 | 877 | #if defined(HAVE_2ARGS_SET_FS_PWD) && defined(HAVE_USER_PATH_DIR) |
51a727e9 | 878 | struct path path; |
82a358d9 BB |
879 | #else |
880 | struct nameidata nd; | |
881 | #endif /* HAVE_2ARGS_SET_FS_PWD */ | |
882 | mm_segment_t saved_fs; | |
51a727e9 | 883 | int rc; |
b17edc10 | 884 | SENTRY; |
51a727e9 | 885 | |
82a358d9 BB |
886 | /* |
887 | * user_path_dir() and __user_walk() both expect 'filename' to be | |
888 | * a user space address so we must briefly increase the data segment | |
889 | * size to ensure strncpy_from_user() does not fail with -EFAULT. | |
890 | */ | |
891 | saved_fs = get_fs(); | |
892 | set_fs(get_ds()); | |
893 | ||
894 | #ifdef HAVE_2ARGS_SET_FS_PWD | |
7119bf70 | 895 | # ifdef HAVE_USER_PATH_DIR |
51a727e9 BB |
896 | rc = user_path_dir(filename, &path); |
897 | if (rc) | |
b17edc10 | 898 | SGOTO(out, rc); |
51a727e9 BB |
899 | |
900 | rc = inode_permission(path.dentry->d_inode, MAY_EXEC | MAY_ACCESS); | |
901 | if (rc) | |
b17edc10 | 902 | SGOTO(dput_and_out, rc); |
51a727e9 BB |
903 | |
904 | set_fs_pwd(current->fs, &path); | |
905 | ||
906 | dput_and_out: | |
907 | path_put(&path); | |
7119bf70 BB |
908 | # else |
909 | rc = __user_walk(filename, | |
910 | LOOKUP_FOLLOW|LOOKUP_DIRECTORY|LOOKUP_CHDIR, &nd); | |
911 | if (rc) | |
b17edc10 | 912 | SGOTO(out, rc); |
7119bf70 BB |
913 | |
914 | rc = vfs_permission(&nd, MAY_EXEC); | |
915 | if (rc) | |
b17edc10 | 916 | SGOTO(dput_and_out, rc); |
7119bf70 BB |
917 | |
918 | set_fs_pwd(current->fs, &nd.path); | |
919 | ||
920 | dput_and_out: | |
921 | path_put(&nd.path); | |
922 | # endif /* HAVE_USER_PATH_DIR */ | |
51a727e9 | 923 | #else |
51a727e9 BB |
924 | rc = __user_walk(filename, |
925 | LOOKUP_FOLLOW|LOOKUP_DIRECTORY|LOOKUP_CHDIR, &nd); | |
926 | if (rc) | |
b17edc10 | 927 | SGOTO(out, rc); |
51a727e9 BB |
928 | |
929 | rc = vfs_permission(&nd, MAY_EXEC); | |
930 | if (rc) | |
b17edc10 | 931 | SGOTO(dput_and_out, rc); |
51a727e9 BB |
932 | |
933 | set_fs_pwd(current->fs, nd.nd_mnt, nd.nd_dentry); | |
934 | ||
935 | dput_and_out: | |
936 | vn_path_release(&nd); | |
937 | #endif /* HAVE_2ARGS_SET_FS_PWD */ | |
938 | out: | |
82a358d9 BB |
939 | set_fs(saved_fs); |
940 | ||
b17edc10 | 941 | SRETURN(-rc); |
51a727e9 BB |
942 | } /* vn_set_pwd() */ |
943 | EXPORT_SYMBOL(vn_set_pwd); | |
944 | ||
af828292 | 945 | static int |
946 | vn_cache_constructor(void *buf, void *cdrarg, int kmflags) | |
947 | { | |
948 | struct vnode *vp = buf; | |
949 | ||
950 | mutex_init(&vp->v_lock, NULL, MUTEX_DEFAULT, NULL); | |
951 | ||
952 | return (0); | |
953 | } /* vn_cache_constructor() */ | |
954 | ||
955 | static void | |
956 | vn_cache_destructor(void *buf, void *cdrarg) | |
957 | { | |
958 | struct vnode *vp = buf; | |
959 | ||
960 | mutex_destroy(&vp->v_lock); | |
961 | } /* vn_cache_destructor() */ | |
962 | ||
e4f1d29f | 963 | static int |
964 | vn_file_cache_constructor(void *buf, void *cdrarg, int kmflags) | |
965 | { | |
966 | file_t *fp = buf; | |
967 | ||
968 | atomic_set(&fp->f_ref, 0); | |
969 | mutex_init(&fp->f_lock, NULL, MUTEX_DEFAULT, NULL); | |
4e62fd41 | 970 | INIT_LIST_HEAD(&fp->f_list); |
e4f1d29f | 971 | |
972 | return (0); | |
973 | } /* file_cache_constructor() */ | |
974 | ||
975 | static void | |
976 | vn_file_cache_destructor(void *buf, void *cdrarg) | |
977 | { | |
978 | file_t *fp = buf; | |
979 | ||
980 | mutex_destroy(&fp->f_lock); | |
981 | } /* vn_file_cache_destructor() */ | |
982 | ||
12ff95ff BB |
983 | int spl_vn_init_kallsyms_lookup(void) |
984 | { | |
985 | #ifdef HAVE_KERN_PATH_PARENT_HEADER | |
986 | #ifndef HAVE_KERN_PATH_PARENT_SYMBOL | |
987 | kern_path_parent_fn = (kern_path_parent_t) | |
988 | spl_kallsyms_lookup_name("kern_path_parent"); | |
989 | if (!kern_path_parent_fn) { | |
990 | printk(KERN_ERR "Error: Unknown symbol kern_path_parent\n"); | |
991 | return -EFAULT; | |
992 | } | |
993 | #endif /* HAVE_KERN_PATH_PARENT_SYMBOL */ | |
994 | #endif /* HAVE_KERN_PATH_PARENT_HEADER */ | |
995 | ||
bcb15891 YS |
996 | #ifdef HAVE_KERN_PATH_LOCKED |
997 | kern_path_locked_fn = (kern_path_locked_t) | |
998 | spl_kallsyms_lookup_name("kern_path_locked"); | |
999 | if (!kern_path_locked_fn) { | |
1000 | printk(KERN_ERR "Error: Unknown symbol kern_path_locked\n"); | |
1001 | return -EFAULT; | |
1002 | } | |
1003 | #endif | |
1004 | ||
12ff95ff BB |
1005 | return (0); |
1006 | } | |
1007 | ||
af828292 | 1008 | int |
12ff95ff | 1009 | spl_vn_init(void) |
af828292 | 1010 | { |
b17edc10 | 1011 | SENTRY; |
57d86234 | 1012 | vn_cache = kmem_cache_create("spl_vn_cache", |
1013 | sizeof(struct vnode), 64, | |
5d86345d | 1014 | vn_cache_constructor, |
1015 | vn_cache_destructor, | |
a5b40eed | 1016 | NULL, NULL, NULL, KMC_KMEM); |
e4f1d29f | 1017 | |
1018 | vn_file_cache = kmem_cache_create("spl_vn_file_cache", | |
1019 | sizeof(file_t), 64, | |
1020 | vn_file_cache_constructor, | |
1021 | vn_file_cache_destructor, | |
a5b40eed | 1022 | NULL, NULL, NULL, KMC_KMEM); |
b17edc10 | 1023 | SRETURN(0); |
af828292 | 1024 | } /* vn_init() */ |
1025 | ||
1026 | void | |
12ff95ff | 1027 | spl_vn_fini(void) |
af828292 | 1028 | { |
e4f1d29f | 1029 | file_t *fp, *next_fp; |
2fb9b26a | 1030 | int leaked = 0; |
b17edc10 | 1031 | SENTRY; |
e4f1d29f | 1032 | |
1033 | spin_lock(&vn_file_lock); | |
1034 | ||
1035 | list_for_each_entry_safe(fp, next_fp, &vn_file_list, f_list) { | |
1036 | list_del(&fp->f_list); | |
1037 | releasef_locked(fp); | |
1038 | leaked++; | |
1039 | } | |
1040 | ||
e4f1d29f | 1041 | spin_unlock(&vn_file_lock); |
1042 | ||
1043 | if (leaked > 0) | |
b17edc10 | 1044 | SWARN("Warning %d files leaked\n", leaked); |
e4f1d29f | 1045 | |
2371321e | 1046 | kmem_cache_destroy(vn_file_cache); |
2fb9b26a | 1047 | kmem_cache_destroy(vn_cache); |
e4f1d29f | 1048 | |
b17edc10 | 1049 | SEXIT; |
e4f1d29f | 1050 | return; |
af828292 | 1051 | } /* vn_fini() */ |