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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 BB |
8 | * This file is part of the SPL, Solaris Porting Layer. |
9 | * For details, see <http://github.com/behlendorf/spl/>. | |
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); | |
335 | } | |
336 | ||
337 | spl_inode_unlock(parent.dentry->d_inode); | |
338 | if (inode) | |
339 | iput(inode); /* truncate the inode here */ | |
340 | ||
341 | path_put(&parent); | |
342 | SRETURN(-rc); | |
343 | ||
344 | slashes: | |
345 | rc = !dentry->d_inode ? -ENOENT : | |
346 | S_ISDIR(dentry->d_inode->i_mode) ? -EISDIR : -ENOTDIR; | |
347 | SGOTO(exit1, rc); | |
348 | } /* vn_remove() */ | |
349 | EXPORT_SYMBOL(vn_remove); | |
350 | ||
351 | /* Based on do_rename() from linux/fs/namei.c */ | |
352 | int | |
353 | vn_rename(const char *oldname, const char *newname, int x1) | |
354 | { | |
355 | struct dentry *old_dir, *new_dir; | |
356 | struct dentry *old_dentry, *new_dentry; | |
357 | struct dentry *trap; | |
358 | struct path old_parent, new_parent; | |
359 | int rc = 0; | |
360 | SENTRY; | |
361 | ||
362 | old_dentry = spl_kern_path_locked(oldname, &old_parent); | |
363 | if (IS_ERR(old_dentry)) | |
364 | SGOTO(exit, rc = PTR_ERR(old_dentry)); | |
365 | ||
366 | spl_inode_unlock(old_parent.dentry->d_inode); | |
367 | ||
368 | new_dentry = spl_kern_path_locked(newname, &new_parent); | |
369 | if (IS_ERR(new_dentry)) | |
370 | SGOTO(exit2, rc = PTR_ERR(new_dentry)); | |
371 | ||
372 | spl_inode_unlock(new_parent.dentry->d_inode); | |
373 | ||
374 | rc = -EXDEV; | |
375 | if (old_parent.mnt != new_parent.mnt) | |
376 | SGOTO(exit3, rc); | |
377 | ||
378 | old_dir = old_parent.dentry; | |
379 | new_dir = new_parent.dentry; | |
380 | trap = lock_rename(new_dir, old_dir); | |
381 | ||
382 | /* source should not be ancestor of target */ | |
383 | rc = -EINVAL; | |
384 | if (old_dentry == trap) | |
385 | SGOTO(exit4, rc); | |
386 | ||
387 | /* target should not be an ancestor of source */ | |
388 | rc = -ENOTEMPTY; | |
389 | if (new_dentry == trap) | |
390 | SGOTO(exit4, rc); | |
391 | ||
392 | /* source must exist */ | |
393 | rc = -ENOENT; | |
394 | if (!old_dentry->d_inode) | |
395 | SGOTO(exit4, rc); | |
396 | ||
397 | /* unless the source is a directory trailing slashes give -ENOTDIR */ | |
398 | if (!S_ISDIR(old_dentry->d_inode->i_mode)) { | |
399 | rc = -ENOTDIR; | |
400 | if (old_dentry->d_name.name[old_dentry->d_name.len]) | |
401 | SGOTO(exit4, rc); | |
402 | if (new_dentry->d_name.name[new_dentry->d_name.len]) | |
403 | SGOTO(exit4, rc); | |
404 | } | |
405 | ||
406 | #ifdef HAVE_4ARGS_VFS_RENAME | |
407 | rc = vfs_rename(old_dir->d_inode, old_dentry, | |
408 | new_dir->d_inode, new_dentry); | |
409 | #else | |
410 | rc = vfs_rename(old_dir->d_inode, old_dentry, oldnd.nd_mnt, | |
411 | new_dir->d_inode, new_dentry, newnd.nd_mnt); | |
412 | #endif /* HAVE_4ARGS_VFS_RENAME */ | |
413 | exit4: | |
414 | unlock_rename(new_dir, old_dir); | |
415 | exit3: | |
416 | dput(new_dentry); | |
417 | path_put(&new_parent); | |
418 | exit2: | |
419 | dput(old_dentry); | |
420 | path_put(&old_parent); | |
421 | exit: | |
422 | SRETURN(-rc); | |
423 | } | |
424 | EXPORT_SYMBOL(vn_rename); | |
425 | ||
426 | #else | |
97735c39 BB |
427 | static struct dentry * |
428 | vn_lookup_hash(struct nameidata *nd) | |
4b171585 | 429 | { |
849c50e7 BB |
430 | return lookup_one_len((const char *)nd->last.name, |
431 | nd->nd_dentry, nd->last.len); | |
4b171585 | 432 | } /* lookup_hash() */ |
433 | ||
97735c39 BB |
434 | static void |
435 | vn_path_release(struct nameidata *nd) | |
57d86234 | 436 | { |
437 | dput(nd->nd_dentry); | |
438 | mntput(nd->nd_mnt); | |
439 | } | |
440 | ||
4b171585 | 441 | /* Modified do_unlinkat() from linux/fs/namei.c, only uses exported symbols */ |
442 | int | |
af828292 | 443 | vn_remove(const char *path, uio_seg_t seg, int flags) |
4b171585 | 444 | { |
445 | struct dentry *dentry; | |
446 | struct nameidata nd; | |
447 | struct inode *inode = NULL; | |
448 | int rc = 0; | |
b17edc10 | 449 | SENTRY; |
4b171585 | 450 | |
3d061e9d | 451 | ASSERT(seg == UIO_SYSSPACE); |
452 | ASSERT(flags == RMFILE); | |
2f5d55aa | 453 | |
b1cbc461 | 454 | rc = spl_kern_path_parent(path, &nd); |
4b171585 | 455 | if (rc) |
b17edc10 | 456 | SGOTO(exit, rc); |
4b171585 | 457 | |
458 | rc = -EISDIR; | |
459 | if (nd.last_type != LAST_NORM) | |
b17edc10 | 460 | SGOTO(exit1, rc); |
4b171585 | 461 | |
6bf4d76f | 462 | spl_inode_lock_nested(nd.nd_dentry->d_inode, I_MUTEX_PARENT); |
57d86234 | 463 | dentry = vn_lookup_hash(&nd); |
4b171585 | 464 | rc = PTR_ERR(dentry); |
465 | if (!IS_ERR(dentry)) { | |
466 | /* Why not before? Because we want correct rc value */ | |
467 | if (nd.last.name[nd.last.len]) | |
b17edc10 | 468 | SGOTO(slashes, rc); |
937879f1 | 469 | |
4b171585 | 470 | inode = dentry->d_inode; |
471 | if (inode) | |
472 | atomic_inc(&inode->i_count); | |
a093c6a4 | 473 | #ifdef HAVE_2ARGS_VFS_UNLINK |
57d86234 | 474 | rc = vfs_unlink(nd.nd_dentry->d_inode, dentry); |
a093c6a4 | 475 | #else |
21411161 | 476 | rc = vfs_unlink(nd.nd_dentry->d_inode, dentry, nd.nd_mnt); |
a093c6a4 | 477 | #endif /* HAVE_2ARGS_VFS_UNLINK */ |
4b171585 | 478 | exit2: |
479 | dput(dentry); | |
480 | } | |
6bf4d76f BB |
481 | |
482 | spl_inode_unlock(nd.nd_dentry->d_inode); | |
4b171585 | 483 | if (inode) |
484 | iput(inode); /* truncate the inode here */ | |
485 | exit1: | |
57d86234 | 486 | vn_path_release(&nd); |
4b171585 | 487 | exit: |
b17edc10 | 488 | SRETURN(-rc); |
4b171585 | 489 | |
490 | slashes: | |
491 | rc = !dentry->d_inode ? -ENOENT : | |
492 | S_ISDIR(dentry->d_inode->i_mode) ? -EISDIR : -ENOTDIR; | |
b17edc10 | 493 | SGOTO(exit2, rc); |
4b171585 | 494 | } /* vn_remove() */ |
495 | EXPORT_SYMBOL(vn_remove); | |
496 | ||
497 | /* Modified do_rename() from linux/fs/namei.c, only uses exported symbols */ | |
498 | int | |
499 | vn_rename(const char *oldname, const char *newname, int x1) | |
500 | { | |
a093c6a4 BB |
501 | struct dentry *old_dir, *new_dir; |
502 | struct dentry *old_dentry, *new_dentry; | |
503 | struct dentry *trap; | |
4b171585 | 504 | struct nameidata oldnd, newnd; |
505 | int rc = 0; | |
b17edc10 | 506 | SENTRY; |
4b171585 | 507 | |
b1cbc461 | 508 | rc = spl_kern_path_parent(oldname, &oldnd); |
4b171585 | 509 | if (rc) |
b17edc10 | 510 | SGOTO(exit, rc); |
4b171585 | 511 | |
b1cbc461 | 512 | rc = spl_kern_path_parent(newname, &newnd); |
4b171585 | 513 | if (rc) |
b17edc10 | 514 | SGOTO(exit1, rc); |
4b171585 | 515 | |
516 | rc = -EXDEV; | |
57d86234 | 517 | if (oldnd.nd_mnt != newnd.nd_mnt) |
b17edc10 | 518 | SGOTO(exit2, rc); |
4b171585 | 519 | |
57d86234 | 520 | old_dir = oldnd.nd_dentry; |
4b171585 | 521 | rc = -EBUSY; |
522 | if (oldnd.last_type != LAST_NORM) | |
b17edc10 | 523 | SGOTO(exit2, rc); |
4b171585 | 524 | |
57d86234 | 525 | new_dir = newnd.nd_dentry; |
4b171585 | 526 | if (newnd.last_type != LAST_NORM) |
b17edc10 | 527 | SGOTO(exit2, rc); |
4b171585 | 528 | |
529 | trap = lock_rename(new_dir, old_dir); | |
530 | ||
57d86234 | 531 | old_dentry = vn_lookup_hash(&oldnd); |
4b171585 | 532 | |
533 | rc = PTR_ERR(old_dentry); | |
534 | if (IS_ERR(old_dentry)) | |
b17edc10 | 535 | SGOTO(exit3, rc); |
4b171585 | 536 | |
537 | /* source must exist */ | |
538 | rc = -ENOENT; | |
539 | if (!old_dentry->d_inode) | |
b17edc10 | 540 | SGOTO(exit4, rc); |
4b171585 | 541 | |
542 | /* unless the source is a directory trailing slashes give -ENOTDIR */ | |
543 | if (!S_ISDIR(old_dentry->d_inode->i_mode)) { | |
544 | rc = -ENOTDIR; | |
545 | if (oldnd.last.name[oldnd.last.len]) | |
b17edc10 | 546 | SGOTO(exit4, rc); |
4b171585 | 547 | if (newnd.last.name[newnd.last.len]) |
b17edc10 | 548 | SGOTO(exit4, rc); |
4b171585 | 549 | } |
550 | ||
551 | /* source should not be ancestor of target */ | |
552 | rc = -EINVAL; | |
553 | if (old_dentry == trap) | |
b17edc10 | 554 | SGOTO(exit4, rc); |
4b171585 | 555 | |
57d86234 | 556 | new_dentry = vn_lookup_hash(&newnd); |
4b171585 | 557 | rc = PTR_ERR(new_dentry); |
558 | if (IS_ERR(new_dentry)) | |
b17edc10 | 559 | SGOTO(exit4, rc); |
4b171585 | 560 | |
561 | /* target should not be an ancestor of source */ | |
562 | rc = -ENOTEMPTY; | |
563 | if (new_dentry == trap) | |
b17edc10 | 564 | SGOTO(exit5, rc); |
4b171585 | 565 | |
a093c6a4 | 566 | #ifdef HAVE_4ARGS_VFS_RENAME |
4b171585 | 567 | rc = vfs_rename(old_dir->d_inode, old_dentry, |
568 | new_dir->d_inode, new_dentry); | |
a093c6a4 | 569 | #else |
21411161 BB |
570 | rc = vfs_rename(old_dir->d_inode, old_dentry, oldnd.nd_mnt, |
571 | new_dir->d_inode, new_dentry, newnd.nd_mnt); | |
a093c6a4 | 572 | #endif /* HAVE_4ARGS_VFS_RENAME */ |
4b171585 | 573 | exit5: |
574 | dput(new_dentry); | |
575 | exit4: | |
576 | dput(old_dentry); | |
577 | exit3: | |
578 | unlock_rename(new_dir, old_dir); | |
579 | exit2: | |
57d86234 | 580 | vn_path_release(&newnd); |
4b171585 | 581 | exit1: |
57d86234 | 582 | vn_path_release(&oldnd); |
4b171585 | 583 | exit: |
b17edc10 | 584 | SRETURN(-rc); |
0b3cf046 | 585 | } |
4b171585 | 586 | EXPORT_SYMBOL(vn_rename); |
bcb15891 | 587 | #endif /* HAVE_KERN_PATH_LOCKED */ |
0b3cf046 | 588 | |
4b171585 | 589 | int |
36e6f861 | 590 | vn_getattr(vnode_t *vp, vattr_t *vap, int flags, void *x3, void *x4) |
0b3cf046 | 591 | { |
4b171585 | 592 | struct file *fp; |
dcd9cb5a | 593 | struct kstat stat; |
4b171585 | 594 | int rc; |
b17edc10 | 595 | SENTRY; |
4b171585 | 596 | |
937879f1 | 597 | ASSERT(vp); |
598 | ASSERT(vp->v_file); | |
599 | ASSERT(vap); | |
4b171585 | 600 | |
e4f1d29f | 601 | fp = vp->v_file; |
4b171585 | 602 | |
603 | rc = vfs_getattr(fp->f_vfsmnt, fp->f_dentry, &stat); | |
604 | if (rc) | |
b17edc10 | 605 | SRETURN(-rc); |
4b171585 | 606 | |
4295b530 | 607 | vap->va_type = vn_mode_to_vtype(stat.mode); |
4b171585 | 608 | vap->va_mode = stat.mode; |
609 | vap->va_uid = stat.uid; | |
610 | vap->va_gid = stat.gid; | |
611 | vap->va_fsid = 0; | |
612 | vap->va_nodeid = stat.ino; | |
613 | vap->va_nlink = stat.nlink; | |
614 | vap->va_size = stat.size; | |
47995fa6 | 615 | vap->va_blksize = stat.blksize; |
dcd9cb5a BB |
616 | vap->va_atime = stat.atime; |
617 | vap->va_mtime = stat.mtime; | |
618 | vap->va_ctime = stat.ctime; | |
4b171585 | 619 | vap->va_rdev = stat.rdev; |
dcd9cb5a | 620 | vap->va_nblocks = stat.blocks; |
4b171585 | 621 | |
dcd9cb5a | 622 | SRETURN(0); |
0b3cf046 | 623 | } |
4b171585 | 624 | EXPORT_SYMBOL(vn_getattr); |
625 | ||
2f5d55aa | 626 | int vn_fsync(vnode_t *vp, int flags, void *x3, void *x4) |
4b171585 | 627 | { |
36e6f861 | 628 | int datasync = 0; |
b17edc10 | 629 | SENTRY; |
36e6f861 | 630 | |
937879f1 | 631 | ASSERT(vp); |
632 | ASSERT(vp->v_file); | |
4b171585 | 633 | |
36e6f861 | 634 | if (flags & FDSYNC) |
635 | datasync = 1; | |
636 | ||
b17edc10 | 637 | SRETURN(-spl_filp_fsync(vp->v_file, datasync)); |
4b171585 | 638 | } /* vn_fsync() */ |
639 | EXPORT_SYMBOL(vn_fsync); | |
af828292 | 640 | |
bbdc6ae4 ED |
641 | int vn_space(vnode_t *vp, int cmd, struct flock *bfp, int flag, |
642 | offset_t offset, void *x6, void *x7) | |
643 | { | |
644 | int error = EOPNOTSUPP; | |
645 | SENTRY; | |
646 | ||
647 | if (cmd != F_FREESP || bfp->l_whence != 0) | |
648 | SRETURN(EOPNOTSUPP); | |
649 | ||
650 | ASSERT(vp); | |
651 | ASSERT(vp->v_file); | |
652 | ASSERT(bfp->l_start >= 0 && bfp->l_len > 0); | |
653 | ||
654 | #ifdef FALLOC_FL_PUNCH_HOLE | |
655 | if (vp->v_file->f_op->fallocate) { | |
656 | error = -vp->v_file->f_op->fallocate(vp->v_file, | |
657 | FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE, | |
658 | bfp->l_start, bfp->l_len); | |
659 | if (!error) | |
660 | SRETURN(0); | |
661 | } | |
662 | #endif | |
663 | ||
664 | #ifdef HAVE_INODE_TRUNCATE_RANGE | |
665 | if (vp->v_file->f_dentry && vp->v_file->f_dentry->d_inode && | |
666 | vp->v_file->f_dentry->d_inode->i_op && | |
667 | vp->v_file->f_dentry->d_inode->i_op->truncate_range) { | |
668 | off_t end = bfp->l_start + bfp->l_len; | |
669 | /* | |
670 | * Judging from the code in shmem_truncate_range(), | |
671 | * it seems the kernel expects the end offset to be | |
672 | * inclusive and aligned to the end of a page. | |
673 | */ | |
674 | if (end % PAGE_SIZE != 0) { | |
675 | end &= ~(off_t)(PAGE_SIZE - 1); | |
676 | if (end <= bfp->l_start) | |
677 | SRETURN(0); | |
678 | } | |
679 | --end; | |
680 | ||
681 | vp->v_file->f_dentry->d_inode->i_op->truncate_range( | |
682 | vp->v_file->f_dentry->d_inode, | |
683 | bfp->l_start, end | |
684 | ); | |
685 | SRETURN(0); | |
686 | } | |
687 | #endif | |
688 | ||
689 | SRETURN(error); | |
690 | } | |
691 | EXPORT_SYMBOL(vn_space); | |
692 | ||
e4f1d29f | 693 | /* Function must be called while holding the vn_file_lock */ |
694 | static file_t * | |
695 | file_find(int fd) | |
696 | { | |
697 | file_t *fp; | |
698 | ||
937879f1 | 699 | ASSERT(spin_is_locked(&vn_file_lock)); |
e4f1d29f | 700 | |
701 | list_for_each_entry(fp, &vn_file_list, f_list) { | |
763b2f3b | 702 | if (fd == fp->f_fd && fp->f_task == current) { |
937879f1 | 703 | ASSERT(atomic_read(&fp->f_ref) != 0); |
e4f1d29f | 704 | return fp; |
705 | } | |
706 | } | |
707 | ||
708 | return NULL; | |
709 | } /* file_find() */ | |
710 | ||
711 | file_t * | |
712 | vn_getf(int fd) | |
713 | { | |
714 | struct kstat stat; | |
715 | struct file *lfp; | |
716 | file_t *fp; | |
717 | vnode_t *vp; | |
937879f1 | 718 | int rc = 0; |
b17edc10 | 719 | SENTRY; |
e4f1d29f | 720 | |
721 | /* Already open just take an extra reference */ | |
722 | spin_lock(&vn_file_lock); | |
723 | ||
724 | fp = file_find(fd); | |
725 | if (fp) { | |
726 | atomic_inc(&fp->f_ref); | |
727 | spin_unlock(&vn_file_lock); | |
b17edc10 | 728 | SRETURN(fp); |
e4f1d29f | 729 | } |
730 | ||
731 | spin_unlock(&vn_file_lock); | |
732 | ||
733 | /* File was not yet opened create the object and setup */ | |
4afaaefa | 734 | fp = kmem_cache_alloc(vn_file_cache, KM_SLEEP); |
e4f1d29f | 735 | if (fp == NULL) |
b17edc10 | 736 | SGOTO(out, rc); |
e4f1d29f | 737 | |
738 | mutex_enter(&fp->f_lock); | |
739 | ||
740 | fp->f_fd = fd; | |
763b2f3b | 741 | fp->f_task = current; |
e4f1d29f | 742 | fp->f_offset = 0; |
743 | atomic_inc(&fp->f_ref); | |
744 | ||
745 | lfp = fget(fd); | |
746 | if (lfp == NULL) | |
b17edc10 | 747 | SGOTO(out_mutex, rc); |
e4f1d29f | 748 | |
749 | vp = vn_alloc(KM_SLEEP); | |
750 | if (vp == NULL) | |
b17edc10 | 751 | SGOTO(out_fget, rc); |
e4f1d29f | 752 | |
753 | if (vfs_getattr(lfp->f_vfsmnt, lfp->f_dentry, &stat)) | |
b17edc10 | 754 | SGOTO(out_vnode, rc); |
e4f1d29f | 755 | |
756 | mutex_enter(&vp->v_lock); | |
4295b530 | 757 | vp->v_type = vn_mode_to_vtype(stat.mode); |
e4f1d29f | 758 | vp->v_file = lfp; |
759 | mutex_exit(&vp->v_lock); | |
760 | ||
761 | fp->f_vnode = vp; | |
762 | fp->f_file = lfp; | |
763 | ||
764 | /* Put it on the tracking list */ | |
765 | spin_lock(&vn_file_lock); | |
766 | list_add(&fp->f_list, &vn_file_list); | |
767 | spin_unlock(&vn_file_lock); | |
768 | ||
769 | mutex_exit(&fp->f_lock); | |
b17edc10 | 770 | SRETURN(fp); |
e4f1d29f | 771 | |
772 | out_vnode: | |
e4f1d29f | 773 | vn_free(vp); |
774 | out_fget: | |
e4f1d29f | 775 | fput(lfp); |
776 | out_mutex: | |
e4f1d29f | 777 | mutex_exit(&fp->f_lock); |
778 | kmem_cache_free(vn_file_cache, fp); | |
779 | out: | |
b17edc10 | 780 | SRETURN(NULL); |
e4f1d29f | 781 | } /* getf() */ |
782 | EXPORT_SYMBOL(getf); | |
783 | ||
784 | static void releasef_locked(file_t *fp) | |
785 | { | |
937879f1 | 786 | ASSERT(fp->f_file); |
787 | ASSERT(fp->f_vnode); | |
e4f1d29f | 788 | |
789 | /* Unlinked from list, no refs, safe to free outside mutex */ | |
790 | fput(fp->f_file); | |
791 | vn_free(fp->f_vnode); | |
792 | ||
793 | kmem_cache_free(vn_file_cache, fp); | |
794 | } | |
795 | ||
796 | void | |
797 | vn_releasef(int fd) | |
798 | { | |
799 | file_t *fp; | |
b17edc10 | 800 | SENTRY; |
e4f1d29f | 801 | |
802 | spin_lock(&vn_file_lock); | |
803 | fp = file_find(fd); | |
804 | if (fp) { | |
805 | atomic_dec(&fp->f_ref); | |
806 | if (atomic_read(&fp->f_ref) > 0) { | |
807 | spin_unlock(&vn_file_lock); | |
b17edc10 | 808 | SEXIT; |
e4f1d29f | 809 | return; |
810 | } | |
811 | ||
812 | list_del(&fp->f_list); | |
813 | releasef_locked(fp); | |
814 | } | |
815 | spin_unlock(&vn_file_lock); | |
816 | ||
b17edc10 | 817 | SEXIT; |
e4f1d29f | 818 | return; |
819 | } /* releasef() */ | |
820 | EXPORT_SYMBOL(releasef); | |
821 | ||
51a727e9 BB |
822 | #ifndef HAVE_SET_FS_PWD |
823 | # ifdef HAVE_2ARGS_SET_FS_PWD | |
824 | /* Used from 2.6.25 - 2.6.31+ */ | |
825 | void | |
826 | set_fs_pwd(struct fs_struct *fs, struct path *path) | |
827 | { | |
9b2048c2 BB |
828 | struct path old_pwd; |
829 | ||
830 | # ifdef HAVE_FS_STRUCT_SPINLOCK | |
831 | spin_lock(&fs->lock); | |
832 | old_pwd = fs->pwd; | |
833 | fs->pwd = *path; | |
834 | path_get(path); | |
835 | spin_unlock(&fs->lock); | |
836 | # else | |
837 | write_lock(&fs->lock); | |
838 | old_pwd = fs->pwd; | |
839 | fs->pwd = *path; | |
840 | path_get(path); | |
841 | write_unlock(&fs->lock); | |
842 | # endif /* HAVE_FS_STRUCT_SPINLOCK */ | |
843 | ||
844 | if (old_pwd.dentry) | |
845 | path_put(&old_pwd); | |
51a727e9 BB |
846 | } |
847 | # else | |
848 | /* Used from 2.6.11 - 2.6.24 */ | |
849 | void | |
850 | set_fs_pwd(struct fs_struct *fs, struct vfsmount *mnt, struct dentry *dentry) | |
851 | { | |
852 | struct dentry *old_pwd; | |
853 | struct vfsmount *old_pwdmnt; | |
854 | ||
855 | write_lock(&fs->lock); | |
856 | old_pwd = fs->pwd; | |
857 | old_pwdmnt = fs->pwdmnt; | |
858 | fs->pwdmnt = mntget(mnt); | |
859 | fs->pwd = dget(dentry); | |
860 | write_unlock(&fs->lock); | |
861 | ||
862 | if (old_pwd) { | |
863 | dput(old_pwd); | |
864 | mntput(old_pwdmnt); | |
865 | } | |
866 | } | |
867 | # endif /* HAVE_2ARGS_SET_FS_PWD */ | |
868 | #endif /* HAVE_SET_FS_PWD */ | |
869 | ||
870 | int | |
871 | vn_set_pwd(const char *filename) | |
872 | { | |
7119bf70 | 873 | #if defined(HAVE_2ARGS_SET_FS_PWD) && defined(HAVE_USER_PATH_DIR) |
51a727e9 | 874 | struct path path; |
82a358d9 BB |
875 | #else |
876 | struct nameidata nd; | |
877 | #endif /* HAVE_2ARGS_SET_FS_PWD */ | |
878 | mm_segment_t saved_fs; | |
51a727e9 | 879 | int rc; |
b17edc10 | 880 | SENTRY; |
51a727e9 | 881 | |
82a358d9 BB |
882 | /* |
883 | * user_path_dir() and __user_walk() both expect 'filename' to be | |
884 | * a user space address so we must briefly increase the data segment | |
885 | * size to ensure strncpy_from_user() does not fail with -EFAULT. | |
886 | */ | |
887 | saved_fs = get_fs(); | |
888 | set_fs(get_ds()); | |
889 | ||
890 | #ifdef HAVE_2ARGS_SET_FS_PWD | |
7119bf70 | 891 | # ifdef HAVE_USER_PATH_DIR |
51a727e9 BB |
892 | rc = user_path_dir(filename, &path); |
893 | if (rc) | |
b17edc10 | 894 | SGOTO(out, rc); |
51a727e9 BB |
895 | |
896 | rc = inode_permission(path.dentry->d_inode, MAY_EXEC | MAY_ACCESS); | |
897 | if (rc) | |
b17edc10 | 898 | SGOTO(dput_and_out, rc); |
51a727e9 BB |
899 | |
900 | set_fs_pwd(current->fs, &path); | |
901 | ||
902 | dput_and_out: | |
903 | path_put(&path); | |
7119bf70 BB |
904 | # else |
905 | rc = __user_walk(filename, | |
906 | LOOKUP_FOLLOW|LOOKUP_DIRECTORY|LOOKUP_CHDIR, &nd); | |
907 | if (rc) | |
b17edc10 | 908 | SGOTO(out, rc); |
7119bf70 BB |
909 | |
910 | rc = vfs_permission(&nd, MAY_EXEC); | |
911 | if (rc) | |
b17edc10 | 912 | SGOTO(dput_and_out, rc); |
7119bf70 BB |
913 | |
914 | set_fs_pwd(current->fs, &nd.path); | |
915 | ||
916 | dput_and_out: | |
917 | path_put(&nd.path); | |
918 | # endif /* HAVE_USER_PATH_DIR */ | |
51a727e9 | 919 | #else |
51a727e9 BB |
920 | rc = __user_walk(filename, |
921 | LOOKUP_FOLLOW|LOOKUP_DIRECTORY|LOOKUP_CHDIR, &nd); | |
922 | if (rc) | |
b17edc10 | 923 | SGOTO(out, rc); |
51a727e9 BB |
924 | |
925 | rc = vfs_permission(&nd, MAY_EXEC); | |
926 | if (rc) | |
b17edc10 | 927 | SGOTO(dput_and_out, rc); |
51a727e9 BB |
928 | |
929 | set_fs_pwd(current->fs, nd.nd_mnt, nd.nd_dentry); | |
930 | ||
931 | dput_and_out: | |
932 | vn_path_release(&nd); | |
933 | #endif /* HAVE_2ARGS_SET_FS_PWD */ | |
934 | out: | |
82a358d9 BB |
935 | set_fs(saved_fs); |
936 | ||
b17edc10 | 937 | SRETURN(-rc); |
51a727e9 BB |
938 | } /* vn_set_pwd() */ |
939 | EXPORT_SYMBOL(vn_set_pwd); | |
940 | ||
af828292 | 941 | static int |
942 | vn_cache_constructor(void *buf, void *cdrarg, int kmflags) | |
943 | { | |
944 | struct vnode *vp = buf; | |
945 | ||
946 | mutex_init(&vp->v_lock, NULL, MUTEX_DEFAULT, NULL); | |
947 | ||
948 | return (0); | |
949 | } /* vn_cache_constructor() */ | |
950 | ||
951 | static void | |
952 | vn_cache_destructor(void *buf, void *cdrarg) | |
953 | { | |
954 | struct vnode *vp = buf; | |
955 | ||
956 | mutex_destroy(&vp->v_lock); | |
957 | } /* vn_cache_destructor() */ | |
958 | ||
e4f1d29f | 959 | static int |
960 | vn_file_cache_constructor(void *buf, void *cdrarg, int kmflags) | |
961 | { | |
962 | file_t *fp = buf; | |
963 | ||
964 | atomic_set(&fp->f_ref, 0); | |
965 | mutex_init(&fp->f_lock, NULL, MUTEX_DEFAULT, NULL); | |
4e62fd41 | 966 | INIT_LIST_HEAD(&fp->f_list); |
e4f1d29f | 967 | |
968 | return (0); | |
969 | } /* file_cache_constructor() */ | |
970 | ||
971 | static void | |
972 | vn_file_cache_destructor(void *buf, void *cdrarg) | |
973 | { | |
974 | file_t *fp = buf; | |
975 | ||
976 | mutex_destroy(&fp->f_lock); | |
977 | } /* vn_file_cache_destructor() */ | |
978 | ||
12ff95ff BB |
979 | int spl_vn_init_kallsyms_lookup(void) |
980 | { | |
981 | #ifdef HAVE_KERN_PATH_PARENT_HEADER | |
982 | #ifndef HAVE_KERN_PATH_PARENT_SYMBOL | |
983 | kern_path_parent_fn = (kern_path_parent_t) | |
984 | spl_kallsyms_lookup_name("kern_path_parent"); | |
985 | if (!kern_path_parent_fn) { | |
986 | printk(KERN_ERR "Error: Unknown symbol kern_path_parent\n"); | |
987 | return -EFAULT; | |
988 | } | |
989 | #endif /* HAVE_KERN_PATH_PARENT_SYMBOL */ | |
990 | #endif /* HAVE_KERN_PATH_PARENT_HEADER */ | |
991 | ||
bcb15891 YS |
992 | #ifdef HAVE_KERN_PATH_LOCKED |
993 | kern_path_locked_fn = (kern_path_locked_t) | |
994 | spl_kallsyms_lookup_name("kern_path_locked"); | |
995 | if (!kern_path_locked_fn) { | |
996 | printk(KERN_ERR "Error: Unknown symbol kern_path_locked\n"); | |
997 | return -EFAULT; | |
998 | } | |
999 | #endif | |
1000 | ||
12ff95ff BB |
1001 | return (0); |
1002 | } | |
1003 | ||
af828292 | 1004 | int |
12ff95ff | 1005 | spl_vn_init(void) |
af828292 | 1006 | { |
b17edc10 | 1007 | SENTRY; |
57d86234 | 1008 | vn_cache = kmem_cache_create("spl_vn_cache", |
1009 | sizeof(struct vnode), 64, | |
5d86345d | 1010 | vn_cache_constructor, |
1011 | vn_cache_destructor, | |
a5b40eed | 1012 | NULL, NULL, NULL, KMC_KMEM); |
e4f1d29f | 1013 | |
1014 | vn_file_cache = kmem_cache_create("spl_vn_file_cache", | |
1015 | sizeof(file_t), 64, | |
1016 | vn_file_cache_constructor, | |
1017 | vn_file_cache_destructor, | |
a5b40eed | 1018 | NULL, NULL, NULL, KMC_KMEM); |
b17edc10 | 1019 | SRETURN(0); |
af828292 | 1020 | } /* vn_init() */ |
1021 | ||
1022 | void | |
12ff95ff | 1023 | spl_vn_fini(void) |
af828292 | 1024 | { |
e4f1d29f | 1025 | file_t *fp, *next_fp; |
2fb9b26a | 1026 | int leaked = 0; |
b17edc10 | 1027 | SENTRY; |
e4f1d29f | 1028 | |
1029 | spin_lock(&vn_file_lock); | |
1030 | ||
1031 | list_for_each_entry_safe(fp, next_fp, &vn_file_list, f_list) { | |
1032 | list_del(&fp->f_list); | |
1033 | releasef_locked(fp); | |
1034 | leaked++; | |
1035 | } | |
1036 | ||
e4f1d29f | 1037 | spin_unlock(&vn_file_lock); |
1038 | ||
1039 | if (leaked > 0) | |
b17edc10 | 1040 | SWARN("Warning %d files leaked\n", leaked); |
e4f1d29f | 1041 | |
2371321e | 1042 | kmem_cache_destroy(vn_file_cache); |
2fb9b26a | 1043 | kmem_cache_destroy(vn_cache); |
e4f1d29f | 1044 | |
b17edc10 | 1045 | SEXIT; |
e4f1d29f | 1046 | return; |
af828292 | 1047 | } /* vn_fini() */ |