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Commit | Line | Data |
---|---|---|
1da177e4 | 1 | /* |
6d66f5cd | 2 | * fs/sysfs/bin.c - sysfs binary file implementation |
1da177e4 LT |
3 | * |
4 | * Copyright (c) 2003 Patrick Mochel | |
5 | * Copyright (c) 2003 Matthew Wilcox | |
6 | * Copyright (c) 2004 Silicon Graphics, Inc. | |
6d66f5cd TH |
7 | * Copyright (c) 2007 SUSE Linux Products GmbH |
8 | * Copyright (c) 2007 Tejun Heo <teheo@suse.de> | |
9 | * | |
10 | * This file is released under the GPLv2. | |
11 | * | |
12 | * Please see Documentation/filesystems/sysfs.txt for more information. | |
1da177e4 LT |
13 | */ |
14 | ||
15 | #undef DEBUG | |
16 | ||
17 | #include <linux/errno.h> | |
18 | #include <linux/fs.h> | |
995982ca | 19 | #include <linux/kernel.h> |
1da177e4 LT |
20 | #include <linux/kobject.h> |
21 | #include <linux/module.h> | |
22 | #include <linux/slab.h> | |
869512ab | 23 | #include <linux/mutex.h> |
e0edd3c6 | 24 | #include <linux/mm.h> |
060cc749 | 25 | #include <linux/uaccess.h> |
1da177e4 LT |
26 | |
27 | #include "sysfs.h" | |
28 | ||
e0edd3c6 EB |
29 | /* |
30 | * There's one bin_buffer for each open file. | |
31 | * | |
32 | * filp->private_data points to bin_buffer and | |
33 | * sysfs_dirent->s_bin_attr.buffers points to a the bin_buffer s | |
34 | * sysfs_dirent->s_bin_attr.buffers is protected by sysfs_bin_lock | |
35 | */ | |
36 | static DEFINE_MUTEX(sysfs_bin_lock); | |
37 | ||
eb361653 | 38 | struct bin_buffer { |
e0edd3c6 EB |
39 | struct mutex mutex; |
40 | void *buffer; | |
41 | int mmapped; | |
f0f37e2f | 42 | const struct vm_operations_struct *vm_ops; |
e0edd3c6 EB |
43 | struct file *file; |
44 | struct hlist_node list; | |
eb361653 TH |
45 | }; |
46 | ||
1da177e4 | 47 | static int |
2c3c8bea | 48 | fill_read(struct file *file, char *buffer, loff_t off, size_t count) |
1da177e4 | 49 | { |
2c3c8bea | 50 | struct sysfs_dirent *attr_sd = file->f_path.dentry->d_fsdata; |
b1fc3d61 TH |
51 | struct bin_attribute *attr = attr_sd->s_bin_attr.bin_attr; |
52 | struct kobject *kobj = attr_sd->s_parent->s_dir.kobj; | |
0ab66088 TH |
53 | int rc; |
54 | ||
55 | /* need attr_sd for attr, its parent for kobj */ | |
e72ceb8c | 56 | if (!sysfs_get_active(attr_sd)) |
0ab66088 | 57 | return -ENODEV; |
1da177e4 | 58 | |
0ab66088 TH |
59 | rc = -EIO; |
60 | if (attr->read) | |
2c3c8bea | 61 | rc = attr->read(file, kobj, attr, buffer, off, count); |
1da177e4 | 62 | |
e72ceb8c | 63 | sysfs_put_active(attr_sd); |
0ab66088 TH |
64 | |
65 | return rc; | |
1da177e4 LT |
66 | } |
67 | ||
68 | static ssize_t | |
93e3cd82 | 69 | read(struct file *file, char __user *userbuf, size_t bytes, loff_t *off) |
1da177e4 | 70 | { |
eb361653 | 71 | struct bin_buffer *bb = file->private_data; |
496ad9aa | 72 | int size = file_inode(file)->i_size; |
1da177e4 | 73 | loff_t offs = *off; |
93e3cd82 | 74 | int count = min_t(size_t, bytes, PAGE_SIZE); |
b31ca3f5 | 75 | char *temp; |
1da177e4 | 76 | |
4503efd0 GKH |
77 | if (!bytes) |
78 | return 0; | |
79 | ||
1da177e4 LT |
80 | if (size) { |
81 | if (offs > size) | |
82 | return 0; | |
83 | if (offs + count > size) | |
84 | count = size - offs; | |
85 | } | |
86 | ||
b31ca3f5 NP |
87 | temp = kmalloc(count, GFP_KERNEL); |
88 | if (!temp) | |
89 | return -ENOMEM; | |
90 | ||
eb361653 TH |
91 | mutex_lock(&bb->mutex); |
92 | ||
2c3c8bea | 93 | count = fill_read(file, bb->buffer, offs, count); |
b31ca3f5 NP |
94 | if (count < 0) { |
95 | mutex_unlock(&bb->mutex); | |
96 | goto out_free; | |
97 | } | |
1da177e4 | 98 | |
b31ca3f5 NP |
99 | memcpy(temp, bb->buffer, count); |
100 | ||
101 | mutex_unlock(&bb->mutex); | |
102 | ||
103 | if (copy_to_user(userbuf, temp, count)) { | |
eb361653 | 104 | count = -EFAULT; |
b31ca3f5 | 105 | goto out_free; |
eb361653 | 106 | } |
1da177e4 | 107 | |
93e3cd82 | 108 | pr_debug("offs = %lld, *off = %lld, count = %d\n", offs, *off, count); |
1da177e4 LT |
109 | |
110 | *off = offs + count; | |
111 | ||
b31ca3f5 NP |
112 | out_free: |
113 | kfree(temp); | |
1da177e4 LT |
114 | return count; |
115 | } | |
116 | ||
117 | static int | |
2c3c8bea | 118 | flush_write(struct file *file, char *buffer, loff_t offset, size_t count) |
1da177e4 | 119 | { |
2c3c8bea | 120 | struct sysfs_dirent *attr_sd = file->f_path.dentry->d_fsdata; |
b1fc3d61 TH |
121 | struct bin_attribute *attr = attr_sd->s_bin_attr.bin_attr; |
122 | struct kobject *kobj = attr_sd->s_parent->s_dir.kobj; | |
0ab66088 TH |
123 | int rc; |
124 | ||
125 | /* need attr_sd for attr, its parent for kobj */ | |
e72ceb8c | 126 | if (!sysfs_get_active(attr_sd)) |
0ab66088 | 127 | return -ENODEV; |
1da177e4 | 128 | |
0ab66088 TH |
129 | rc = -EIO; |
130 | if (attr->write) | |
2c3c8bea | 131 | rc = attr->write(file, kobj, attr, buffer, offset, count); |
1da177e4 | 132 | |
e72ceb8c | 133 | sysfs_put_active(attr_sd); |
0ab66088 TH |
134 | |
135 | return rc; | |
1da177e4 LT |
136 | } |
137 | ||
93e3cd82 TH |
138 | static ssize_t write(struct file *file, const char __user *userbuf, |
139 | size_t bytes, loff_t *off) | |
1da177e4 | 140 | { |
eb361653 | 141 | struct bin_buffer *bb = file->private_data; |
496ad9aa | 142 | int size = file_inode(file)->i_size; |
1da177e4 | 143 | loff_t offs = *off; |
93e3cd82 | 144 | int count = min_t(size_t, bytes, PAGE_SIZE); |
b31ca3f5 | 145 | char *temp; |
1da177e4 | 146 | |
4503efd0 GKH |
147 | if (!bytes) |
148 | return 0; | |
149 | ||
1da177e4 LT |
150 | if (size) { |
151 | if (offs > size) | |
152 | return 0; | |
153 | if (offs + count > size) | |
154 | count = size - offs; | |
155 | } | |
156 | ||
1c8542c7 LZ |
157 | temp = memdup_user(userbuf, count); |
158 | if (IS_ERR(temp)) | |
159 | return PTR_ERR(temp); | |
1da177e4 | 160 | |
b31ca3f5 NP |
161 | mutex_lock(&bb->mutex); |
162 | ||
163 | memcpy(bb->buffer, temp, count); | |
164 | ||
2c3c8bea | 165 | count = flush_write(file, bb->buffer, offs, count); |
b31ca3f5 NP |
166 | mutex_unlock(&bb->mutex); |
167 | ||
1da177e4 LT |
168 | if (count > 0) |
169 | *off = offs + count; | |
eb361653 | 170 | |
d5ce5b40 | 171 | kfree(temp); |
1da177e4 LT |
172 | return count; |
173 | } | |
174 | ||
e0edd3c6 EB |
175 | static void bin_vma_open(struct vm_area_struct *vma) |
176 | { | |
177 | struct file *file = vma->vm_file; | |
178 | struct bin_buffer *bb = file->private_data; | |
179 | struct sysfs_dirent *attr_sd = file->f_path.dentry->d_fsdata; | |
180 | ||
38f49a51 | 181 | if (!bb->vm_ops) |
e0edd3c6 EB |
182 | return; |
183 | ||
e72ceb8c | 184 | if (!sysfs_get_active(attr_sd)) |
e0edd3c6 EB |
185 | return; |
186 | ||
38f49a51 EB |
187 | if (bb->vm_ops->open) |
188 | bb->vm_ops->open(vma); | |
e0edd3c6 | 189 | |
e72ceb8c | 190 | sysfs_put_active(attr_sd); |
e0edd3c6 EB |
191 | } |
192 | ||
e0edd3c6 EB |
193 | static int bin_fault(struct vm_area_struct *vma, struct vm_fault *vmf) |
194 | { | |
195 | struct file *file = vma->vm_file; | |
196 | struct bin_buffer *bb = file->private_data; | |
197 | struct sysfs_dirent *attr_sd = file->f_path.dentry->d_fsdata; | |
198 | int ret; | |
199 | ||
38f49a51 | 200 | if (!bb->vm_ops) |
e0edd3c6 EB |
201 | return VM_FAULT_SIGBUS; |
202 | ||
e72ceb8c | 203 | if (!sysfs_get_active(attr_sd)) |
e0edd3c6 EB |
204 | return VM_FAULT_SIGBUS; |
205 | ||
38f49a51 EB |
206 | ret = VM_FAULT_SIGBUS; |
207 | if (bb->vm_ops->fault) | |
208 | ret = bb->vm_ops->fault(vma, vmf); | |
e0edd3c6 | 209 | |
e72ceb8c | 210 | sysfs_put_active(attr_sd); |
e0edd3c6 EB |
211 | return ret; |
212 | } | |
213 | ||
851a039c | 214 | static int bin_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf) |
e0edd3c6 EB |
215 | { |
216 | struct file *file = vma->vm_file; | |
217 | struct bin_buffer *bb = file->private_data; | |
218 | struct sysfs_dirent *attr_sd = file->f_path.dentry->d_fsdata; | |
219 | int ret; | |
220 | ||
095160ae | 221 | if (!bb->vm_ops) |
851a039c | 222 | return VM_FAULT_SIGBUS; |
e0edd3c6 | 223 | |
e72ceb8c | 224 | if (!sysfs_get_active(attr_sd)) |
851a039c | 225 | return VM_FAULT_SIGBUS; |
e0edd3c6 | 226 | |
38f49a51 EB |
227 | ret = 0; |
228 | if (bb->vm_ops->page_mkwrite) | |
229 | ret = bb->vm_ops->page_mkwrite(vma, vmf); | |
14ae417c JK |
230 | else |
231 | file_update_time(file); | |
e0edd3c6 | 232 | |
e72ceb8c | 233 | sysfs_put_active(attr_sd); |
e0edd3c6 EB |
234 | return ret; |
235 | } | |
236 | ||
237 | static int bin_access(struct vm_area_struct *vma, unsigned long addr, | |
238 | void *buf, int len, int write) | |
239 | { | |
240 | struct file *file = vma->vm_file; | |
241 | struct bin_buffer *bb = file->private_data; | |
242 | struct sysfs_dirent *attr_sd = file->f_path.dentry->d_fsdata; | |
243 | int ret; | |
244 | ||
38f49a51 | 245 | if (!bb->vm_ops) |
e0edd3c6 EB |
246 | return -EINVAL; |
247 | ||
e72ceb8c | 248 | if (!sysfs_get_active(attr_sd)) |
e0edd3c6 EB |
249 | return -EINVAL; |
250 | ||
38f49a51 EB |
251 | ret = -EINVAL; |
252 | if (bb->vm_ops->access) | |
253 | ret = bb->vm_ops->access(vma, addr, buf, len, write); | |
e0edd3c6 | 254 | |
e72ceb8c | 255 | sysfs_put_active(attr_sd); |
e0edd3c6 EB |
256 | return ret; |
257 | } | |
258 | ||
095160ae HD |
259 | #ifdef CONFIG_NUMA |
260 | static int bin_set_policy(struct vm_area_struct *vma, struct mempolicy *new) | |
261 | { | |
262 | struct file *file = vma->vm_file; | |
263 | struct bin_buffer *bb = file->private_data; | |
264 | struct sysfs_dirent *attr_sd = file->f_path.dentry->d_fsdata; | |
265 | int ret; | |
266 | ||
38f49a51 | 267 | if (!bb->vm_ops) |
095160ae HD |
268 | return 0; |
269 | ||
e72ceb8c | 270 | if (!sysfs_get_active(attr_sd)) |
095160ae HD |
271 | return -EINVAL; |
272 | ||
38f49a51 EB |
273 | ret = 0; |
274 | if (bb->vm_ops->set_policy) | |
275 | ret = bb->vm_ops->set_policy(vma, new); | |
095160ae | 276 | |
e72ceb8c | 277 | sysfs_put_active(attr_sd); |
095160ae HD |
278 | return ret; |
279 | } | |
280 | ||
281 | static struct mempolicy *bin_get_policy(struct vm_area_struct *vma, | |
282 | unsigned long addr) | |
283 | { | |
284 | struct file *file = vma->vm_file; | |
285 | struct bin_buffer *bb = file->private_data; | |
286 | struct sysfs_dirent *attr_sd = file->f_path.dentry->d_fsdata; | |
287 | struct mempolicy *pol; | |
288 | ||
38f49a51 | 289 | if (!bb->vm_ops) |
095160ae HD |
290 | return vma->vm_policy; |
291 | ||
e72ceb8c | 292 | if (!sysfs_get_active(attr_sd)) |
095160ae HD |
293 | return vma->vm_policy; |
294 | ||
38f49a51 EB |
295 | pol = vma->vm_policy; |
296 | if (bb->vm_ops->get_policy) | |
297 | pol = bb->vm_ops->get_policy(vma, addr); | |
095160ae | 298 | |
e72ceb8c | 299 | sysfs_put_active(attr_sd); |
095160ae HD |
300 | return pol; |
301 | } | |
302 | ||
303 | static int bin_migrate(struct vm_area_struct *vma, const nodemask_t *from, | |
304 | const nodemask_t *to, unsigned long flags) | |
305 | { | |
306 | struct file *file = vma->vm_file; | |
307 | struct bin_buffer *bb = file->private_data; | |
308 | struct sysfs_dirent *attr_sd = file->f_path.dentry->d_fsdata; | |
309 | int ret; | |
310 | ||
38f49a51 | 311 | if (!bb->vm_ops) |
095160ae HD |
312 | return 0; |
313 | ||
e72ceb8c | 314 | if (!sysfs_get_active(attr_sd)) |
095160ae HD |
315 | return 0; |
316 | ||
38f49a51 EB |
317 | ret = 0; |
318 | if (bb->vm_ops->migrate) | |
319 | ret = bb->vm_ops->migrate(vma, from, to, flags); | |
095160ae | 320 | |
e72ceb8c | 321 | sysfs_put_active(attr_sd); |
095160ae HD |
322 | return ret; |
323 | } | |
324 | #endif | |
325 | ||
f0f37e2f | 326 | static const struct vm_operations_struct bin_vm_ops = { |
e0edd3c6 | 327 | .open = bin_vma_open, |
e0edd3c6 EB |
328 | .fault = bin_fault, |
329 | .page_mkwrite = bin_page_mkwrite, | |
330 | .access = bin_access, | |
095160ae HD |
331 | #ifdef CONFIG_NUMA |
332 | .set_policy = bin_set_policy, | |
333 | .get_policy = bin_get_policy, | |
334 | .migrate = bin_migrate, | |
335 | #endif | |
e0edd3c6 EB |
336 | }; |
337 | ||
1da177e4 LT |
338 | static int mmap(struct file *file, struct vm_area_struct *vma) |
339 | { | |
eb361653 | 340 | struct bin_buffer *bb = file->private_data; |
3e519038 | 341 | struct sysfs_dirent *attr_sd = file->f_path.dentry->d_fsdata; |
b1fc3d61 TH |
342 | struct bin_attribute *attr = attr_sd->s_bin_attr.bin_attr; |
343 | struct kobject *kobj = attr_sd->s_parent->s_dir.kobj; | |
eb361653 | 344 | int rc; |
1da177e4 | 345 | |
eb361653 | 346 | mutex_lock(&bb->mutex); |
0ab66088 TH |
347 | |
348 | /* need attr_sd for attr, its parent for kobj */ | |
e0edd3c6 | 349 | rc = -ENODEV; |
e72ceb8c | 350 | if (!sysfs_get_active(attr_sd)) |
e0edd3c6 | 351 | goto out_unlock; |
0ab66088 TH |
352 | |
353 | rc = -EINVAL; | |
e0edd3c6 EB |
354 | if (!attr->mmap) |
355 | goto out_put; | |
0ab66088 | 356 | |
2c3c8bea | 357 | rc = attr->mmap(file, kobj, attr, vma); |
e0edd3c6 EB |
358 | if (rc) |
359 | goto out_put; | |
0ab66088 | 360 | |
095160ae HD |
361 | /* |
362 | * PowerPC's pci_mmap of legacy_mem uses shmem_zero_setup() | |
363 | * to satisfy versions of X which crash if the mmap fails: that | |
364 | * substitutes a new vm_file, and we don't then want bin_vm_ops. | |
365 | */ | |
366 | if (vma->vm_file != file) | |
e0edd3c6 EB |
367 | goto out_put; |
368 | ||
e0edd3c6 | 369 | rc = -EINVAL; |
095160ae | 370 | if (bb->mmapped && bb->vm_ops != vma->vm_ops) |
e0edd3c6 | 371 | goto out_put; |
e0edd3c6 | 372 | |
a6849fa1 EB |
373 | /* |
374 | * It is not possible to successfully wrap close. | |
375 | * So error if someone is trying to use close. | |
376 | */ | |
377 | rc = -EINVAL; | |
378 | if (vma->vm_ops && vma->vm_ops->close) | |
379 | goto out_put; | |
380 | ||
e0edd3c6 EB |
381 | rc = 0; |
382 | bb->mmapped = 1; | |
095160ae HD |
383 | bb->vm_ops = vma->vm_ops; |
384 | vma->vm_ops = &bin_vm_ops; | |
e0edd3c6 | 385 | out_put: |
e72ceb8c | 386 | sysfs_put_active(attr_sd); |
e0edd3c6 | 387 | out_unlock: |
eb361653 TH |
388 | mutex_unlock(&bb->mutex); |
389 | ||
390 | return rc; | |
1da177e4 LT |
391 | } |
392 | ||
1b18dc2b | 393 | static int open(struct inode *inode, struct file *file) |
1da177e4 | 394 | { |
3e519038 | 395 | struct sysfs_dirent *attr_sd = file->f_path.dentry->d_fsdata; |
b1fc3d61 | 396 | struct bin_attribute *attr = attr_sd->s_bin_attr.bin_attr; |
eb361653 | 397 | struct bin_buffer *bb = NULL; |
0ab66088 | 398 | int error; |
1da177e4 | 399 | |
078ce640 | 400 | /* binary file operations requires both @sd and its parent */ |
e72ceb8c | 401 | if (!sysfs_get_active(attr_sd)) |
0ab66088 | 402 | return -ENODEV; |
1da177e4 | 403 | |
1da177e4 LT |
404 | error = -EACCES; |
405 | if ((file->f_mode & FMODE_WRITE) && !(attr->write || attr->mmap)) | |
7b595756 | 406 | goto err_out; |
1da177e4 | 407 | if ((file->f_mode & FMODE_READ) && !(attr->read || attr->mmap)) |
7b595756 | 408 | goto err_out; |
1da177e4 LT |
409 | |
410 | error = -ENOMEM; | |
eb361653 TH |
411 | bb = kzalloc(sizeof(*bb), GFP_KERNEL); |
412 | if (!bb) | |
7b595756 | 413 | goto err_out; |
1da177e4 | 414 | |
eb361653 TH |
415 | bb->buffer = kmalloc(PAGE_SIZE, GFP_KERNEL); |
416 | if (!bb->buffer) | |
7b595756 | 417 | goto err_out; |
eb361653 TH |
418 | |
419 | mutex_init(&bb->mutex); | |
e0edd3c6 | 420 | bb->file = file; |
eb361653 TH |
421 | file->private_data = bb; |
422 | ||
e0edd3c6 EB |
423 | mutex_lock(&sysfs_bin_lock); |
424 | hlist_add_head(&bb->list, &attr_sd->s_bin_attr.buffers); | |
425 | mutex_unlock(&sysfs_bin_lock); | |
426 | ||
078ce640 | 427 | /* open succeeded, put active references */ |
e72ceb8c | 428 | sysfs_put_active(attr_sd); |
0ab66088 | 429 | return 0; |
1da177e4 | 430 | |
7b595756 | 431 | err_out: |
e72ceb8c | 432 | sysfs_put_active(attr_sd); |
0ab66088 | 433 | kfree(bb); |
1da177e4 LT |
434 | return error; |
435 | } | |
436 | ||
1b18dc2b | 437 | static int release(struct inode *inode, struct file *file) |
1da177e4 | 438 | { |
eb361653 | 439 | struct bin_buffer *bb = file->private_data; |
1da177e4 | 440 | |
e0edd3c6 EB |
441 | mutex_lock(&sysfs_bin_lock); |
442 | hlist_del(&bb->list); | |
443 | mutex_unlock(&sysfs_bin_lock); | |
444 | ||
eb361653 TH |
445 | kfree(bb->buffer); |
446 | kfree(bb); | |
1da177e4 LT |
447 | return 0; |
448 | } | |
449 | ||
4b6f5d20 | 450 | const struct file_operations bin_fops = { |
1da177e4 LT |
451 | .read = read, |
452 | .write = write, | |
453 | .mmap = mmap, | |
454 | .llseek = generic_file_llseek, | |
455 | .open = open, | |
456 | .release = release, | |
457 | }; | |
458 | ||
e0edd3c6 EB |
459 | |
460 | void unmap_bin_file(struct sysfs_dirent *attr_sd) | |
461 | { | |
462 | struct bin_buffer *bb; | |
e0edd3c6 EB |
463 | |
464 | if (sysfs_type(attr_sd) != SYSFS_KOBJ_BIN_ATTR) | |
465 | return; | |
466 | ||
467 | mutex_lock(&sysfs_bin_lock); | |
468 | ||
b67bfe0d | 469 | hlist_for_each_entry(bb, &attr_sd->s_bin_attr.buffers, list) { |
496ad9aa | 470 | struct inode *inode = file_inode(bb->file); |
e0edd3c6 EB |
471 | |
472 | unmap_mapping_range(inode->i_mapping, 0, 0, 1); | |
473 | } | |
474 | ||
475 | mutex_unlock(&sysfs_bin_lock); | |
476 | } | |
477 | ||
1da177e4 LT |
478 | /** |
479 | * sysfs_create_bin_file - create binary file for object. | |
480 | * @kobj: object. | |
481 | * @attr: attribute descriptor. | |
1da177e4 | 482 | */ |
66ecb92b PC |
483 | int sysfs_create_bin_file(struct kobject *kobj, |
484 | const struct bin_attribute *attr) | |
1da177e4 | 485 | { |
608e266a | 486 | BUG_ON(!kobj || !kobj->sd || !attr); |
1da177e4 | 487 | |
608e266a | 488 | return sysfs_add_file(kobj->sd, &attr->attr, SYSFS_KOBJ_BIN_ATTR); |
1da177e4 | 489 | } |
1b866757 | 490 | EXPORT_SYMBOL_GPL(sysfs_create_bin_file); |
1da177e4 LT |
491 | |
492 | /** | |
493 | * sysfs_remove_bin_file - remove binary file for object. | |
494 | * @kobj: object. | |
495 | * @attr: attribute descriptor. | |
1da177e4 | 496 | */ |
66ecb92b PC |
497 | void sysfs_remove_bin_file(struct kobject *kobj, |
498 | const struct bin_attribute *attr) | |
1da177e4 | 499 | { |
3ff195b0 | 500 | sysfs_hash_and_remove(kobj->sd, NULL, attr->attr.name); |
1da177e4 | 501 | } |
1da177e4 | 502 | EXPORT_SYMBOL_GPL(sysfs_remove_bin_file); |