4 * Copyright (c) International Business Machines Corp., 2002,2008
5 * Author(s): Steve French (sfrench@us.ibm.com)
7 * This library is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU Lesser General Public License as published
9 * by the Free Software Foundation; either version 2.1 of the License, or
10 * (at your option) any later version.
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
15 * the GNU Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public License
18 * along with this library; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 #include <linux/nls.h>
29 *****************************************************************
31 *****************************************************************
34 extern struct smb_hdr *cifs_buf_get(void);
35 extern void cifs_buf_release(void *);
36 extern struct smb_hdr *cifs_small_buf_get(void);
37 extern void cifs_small_buf_release(void *);
38 extern int smb_send(struct TCP_Server_Info *, struct smb_hdr *,
39 unsigned int /* length */);
40 extern unsigned int _GetXid(void);
41 extern void _FreeXid(unsigned int);
44 int __xid = (int)_GetXid(); \
45 cFYI(1, "CIFS VFS: in %s as Xid: %d with uid: %d", \
46 __func__, __xid, current_fsuid()); \
50 #define FreeXid(curr_xid) \
53 cFYI(1, "CIFS VFS: leaving %s (xid = %d) rc = %d", \
54 __func__, curr_xid, (int)rc); \
56 extern int init_cifs_idmap(void);
57 extern void exit_cifs_idmap(void);
58 extern void cifs_destroy_idmaptrees(void);
59 extern char *build_path_from_dentry(struct dentry *);
60 extern char *cifs_build_path_to_root(struct smb_vol *vol,
61 struct cifs_sb_info *cifs_sb,
62 struct cifs_tcon *tcon);
63 extern char *build_wildcard_path_from_dentry(struct dentry *direntry);
64 extern char *cifs_compose_mount_options(const char *sb_mountdata,
65 const char *fullpath, const struct dfs_info3_param *ref,
67 /* extern void renew_parental_timestamps(struct dentry *direntry);*/
68 extern struct mid_q_entry *AllocMidQEntry(const struct smb_hdr *smb_buffer,
69 struct TCP_Server_Info *server);
70 extern void DeleteMidQEntry(struct mid_q_entry *midEntry);
71 extern int cifs_call_async(struct TCP_Server_Info *server, struct kvec *iov,
72 unsigned int nvec, mid_receive_t *receive,
73 mid_callback_t *callback, void *cbdata,
75 extern int SendReceive(const unsigned int /* xid */ , struct cifs_ses *,
76 struct smb_hdr * /* input */ ,
77 struct smb_hdr * /* out */ ,
78 int * /* bytes returned */ , const int long_op);
79 extern int SendReceiveNoRsp(const unsigned int xid, struct cifs_ses *ses,
80 char *in_buf, int flags);
81 extern int cifs_check_receive(struct mid_q_entry *mid,
82 struct TCP_Server_Info *server, bool log_error);
83 extern int SendReceive2(const unsigned int /* xid */ , struct cifs_ses *,
84 struct kvec *, int /* nvec to send */,
85 int * /* type of buf returned */ , const int flags);
86 extern int SendReceiveBlockingLock(const unsigned int xid,
87 struct cifs_tcon *ptcon,
88 struct smb_hdr *in_buf ,
89 struct smb_hdr *out_buf,
91 extern void cifs_add_credits(struct TCP_Server_Info *server,
92 const unsigned int add);
93 extern void cifs_set_credits(struct TCP_Server_Info *server, const int val);
94 extern int checkSMB(char *buf, unsigned int length);
95 extern bool is_valid_oplock_break(char *, struct TCP_Server_Info *);
96 extern bool backup_cred(struct cifs_sb_info *);
97 extern bool is_size_safe_to_change(struct cifsInodeInfo *, __u64 eof);
98 extern void cifs_update_eof(struct cifsInodeInfo *cifsi, loff_t offset,
99 unsigned int bytes_written);
100 extern struct cifsFileInfo *find_writable_file(struct cifsInodeInfo *, bool);
101 extern struct cifsFileInfo *find_readable_file(struct cifsInodeInfo *, bool);
102 extern unsigned int smbCalcSize(struct smb_hdr *ptr);
103 extern int decode_negTokenInit(unsigned char *security_blob, int length,
104 struct TCP_Server_Info *server);
105 extern int cifs_convert_address(struct sockaddr *dst, const char *src, int len);
106 extern int cifs_set_port(struct sockaddr *addr, const unsigned short int port);
107 extern int cifs_fill_sockaddr(struct sockaddr *dst, const char *src, int len,
108 const unsigned short int port);
109 extern int map_smb_to_linux_error(char *buf, bool logErr);
110 extern void header_assemble(struct smb_hdr *, char /* command */ ,
111 const struct cifs_tcon *, int /* length of
112 fixed section (word count) in two byte units */);
113 extern int small_smb_init_no_tc(const int smb_cmd, const int wct,
114 struct cifs_ses *ses,
116 extern int CIFS_SessSetup(unsigned int xid, struct cifs_ses *ses,
117 const struct nls_table *nls_cp);
118 extern __u64 GetNextMid(struct TCP_Server_Info *server);
119 extern struct timespec cifs_NTtimeToUnix(__le64 utc_nanoseconds_since_1601);
120 extern u64 cifs_UnixTimeToNT(struct timespec);
121 extern struct timespec cnvrtDosUnixTm(__le16 le_date, __le16 le_time,
123 extern void cifs_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock);
125 extern struct cifsFileInfo *cifs_new_fileinfo(__u16 fileHandle,
126 struct file *file, struct tcon_link *tlink,
128 extern int cifs_posix_open(char *full_path, struct inode **pinode,
129 struct super_block *sb,
130 int mode, unsigned int f_flags,
131 __u32 *poplock, __u16 *pnetfid, int xid);
132 void cifs_fill_uniqueid(struct super_block *sb, struct cifs_fattr *fattr);
133 extern void cifs_unix_basic_to_fattr(struct cifs_fattr *fattr,
134 FILE_UNIX_BASIC_INFO *info,
135 struct cifs_sb_info *cifs_sb);
136 extern void cifs_fattr_to_inode(struct inode *inode, struct cifs_fattr *fattr);
137 extern struct inode *cifs_iget(struct super_block *sb,
138 struct cifs_fattr *fattr);
140 extern int cifs_get_file_info(struct file *filp);
141 extern int cifs_get_inode_info(struct inode **pinode,
142 const unsigned char *search_path,
143 FILE_ALL_INFO *pfile_info,
144 struct super_block *sb, int xid, const __u16 *pfid);
145 extern int cifs_get_file_info_unix(struct file *filp);
146 extern int cifs_get_inode_info_unix(struct inode **pinode,
147 const unsigned char *search_path,
148 struct super_block *sb, int xid);
149 extern int cifs_acl_to_fattr(struct cifs_sb_info *cifs_sb,
150 struct cifs_fattr *fattr, struct inode *inode,
151 const char *path, const __u16 *pfid);
152 extern int id_mode_to_cifs_acl(struct inode *inode, const char *path, __u64,
154 extern struct cifs_ntsd *get_cifs_acl(struct cifs_sb_info *, struct inode *,
155 const char *, u32 *);
156 extern int set_cifs_acl(struct cifs_ntsd *, __u32, struct inode *,
159 extern void dequeue_mid(struct mid_q_entry *mid, bool malformed);
160 extern int cifs_read_from_socket(struct TCP_Server_Info *server, char *buf,
161 unsigned int to_read);
162 extern int cifs_readv_from_socket(struct TCP_Server_Info *server,
163 struct kvec *iov_orig, unsigned int nr_segs,
164 unsigned int to_read);
165 extern void cifs_setup_cifs_sb(struct smb_vol *pvolume_info,
166 struct cifs_sb_info *cifs_sb);
167 extern int cifs_match_super(struct super_block *, void *);
168 extern void cifs_cleanup_volume_info(struct smb_vol *pvolume_info);
169 extern struct smb_vol *cifs_get_volume_info(char *mount_data,
170 const char *devname);
171 extern int cifs_mount(struct cifs_sb_info *, struct smb_vol *);
172 extern void cifs_umount(struct cifs_sb_info *);
174 #if IS_ENABLED(CONFIG_CIFS_DFS_UPCALL)
175 extern void cifs_dfs_release_automount_timer(void);
176 #else /* ! IS_ENABLED(CONFIG_CIFS_DFS_UPCALL) */
177 #define cifs_dfs_release_automount_timer() do { } while (0)
178 #endif /* ! IS_ENABLED(CONFIG_CIFS_DFS_UPCALL) */
180 void cifs_proc_init(void);
181 void cifs_proc_clean(void);
183 extern int cifs_negotiate_protocol(unsigned int xid,
184 struct cifs_ses *ses);
185 extern int cifs_setup_session(unsigned int xid, struct cifs_ses *ses,
186 struct nls_table *nls_info);
187 extern int CIFSSMBNegotiate(unsigned int xid, struct cifs_ses *ses);
189 extern int CIFSTCon(unsigned int xid, struct cifs_ses *ses,
190 const char *tree, struct cifs_tcon *tcon,
191 const struct nls_table *);
193 extern int CIFSFindFirst(const int xid, struct cifs_tcon *tcon,
194 const char *searchName, const struct nls_table *nls_codepage,
195 __u16 *searchHandle, __u16 search_flags,
196 struct cifs_search_info *psrch_inf,
197 int map, const char dirsep);
199 extern int CIFSFindNext(const int xid, struct cifs_tcon *tcon,
200 __u16 searchHandle, __u16 search_flags,
201 struct cifs_search_info *psrch_inf);
203 extern int CIFSFindClose(const int, struct cifs_tcon *tcon,
204 const __u16 search_handle);
206 extern int CIFSSMBQFileInfo(const int xid, struct cifs_tcon *tcon,
207 u16 netfid, FILE_ALL_INFO *pFindData);
208 extern int CIFSSMBQPathInfo(const int xid, struct cifs_tcon *tcon,
209 const unsigned char *searchName,
210 FILE_ALL_INFO *findData,
211 int legacy /* whether to use old info level */,
212 const struct nls_table *nls_codepage, int remap);
213 extern int SMBQueryInformation(const int xid, struct cifs_tcon *tcon,
214 const unsigned char *searchName,
215 FILE_ALL_INFO *findData,
216 const struct nls_table *nls_codepage, int remap);
218 extern int CIFSSMBUnixQFileInfo(const int xid, struct cifs_tcon *tcon,
219 u16 netfid, FILE_UNIX_BASIC_INFO *pFindData);
220 extern int CIFSSMBUnixQPathInfo(const int xid,
221 struct cifs_tcon *tcon,
222 const unsigned char *searchName,
223 FILE_UNIX_BASIC_INFO *pFindData,
224 const struct nls_table *nls_codepage, int remap);
226 extern int CIFSGetDFSRefer(const int xid, struct cifs_ses *ses,
227 const unsigned char *searchName,
228 struct dfs_info3_param **target_nodes,
229 unsigned int *number_of_nodes_in_array,
230 const struct nls_table *nls_codepage, int remap);
232 extern int get_dfs_path(int xid, struct cifs_ses *pSesInfo,
233 const char *old_path,
234 const struct nls_table *nls_codepage,
235 unsigned int *pnum_referrals,
236 struct dfs_info3_param **preferrals,
238 extern void reset_cifs_unix_caps(int xid, struct cifs_tcon *tcon,
239 struct cifs_sb_info *cifs_sb,
240 struct smb_vol *vol);
241 extern int CIFSSMBQFSInfo(const int xid, struct cifs_tcon *tcon,
242 struct kstatfs *FSData);
243 extern int SMBOldQFSInfo(const int xid, struct cifs_tcon *tcon,
244 struct kstatfs *FSData);
245 extern int CIFSSMBSetFSUnixInfo(const int xid, struct cifs_tcon *tcon,
248 extern int CIFSSMBQFSAttributeInfo(const int xid,
249 struct cifs_tcon *tcon);
250 extern int CIFSSMBQFSDeviceInfo(const int xid, struct cifs_tcon *tcon);
251 extern int CIFSSMBQFSUnixInfo(const int xid, struct cifs_tcon *tcon);
252 extern int CIFSSMBQFSPosixInfo(const int xid, struct cifs_tcon *tcon,
253 struct kstatfs *FSData);
255 extern int CIFSSMBSetPathInfo(const int xid, struct cifs_tcon *tcon,
256 const char *fileName, const FILE_BASIC_INFO *data,
257 const struct nls_table *nls_codepage,
258 int remap_special_chars);
259 extern int CIFSSMBSetFileInfo(const int xid, struct cifs_tcon *tcon,
260 const FILE_BASIC_INFO *data, __u16 fid,
261 __u32 pid_of_opener);
262 extern int CIFSSMBSetFileDisposition(const int xid, struct cifs_tcon *tcon,
263 bool delete_file, __u16 fid, __u32 pid_of_opener);
265 extern int CIFSSMBSetAttrLegacy(int xid, struct cifs_tcon *tcon,
266 char *fileName, __u16 dos_attributes,
267 const struct nls_table *nls_codepage);
268 #endif /* possibly unneeded function */
269 extern int CIFSSMBSetEOF(const int xid, struct cifs_tcon *tcon,
270 const char *fileName, __u64 size,
271 bool setAllocationSizeFlag,
272 const struct nls_table *nls_codepage,
273 int remap_special_chars);
274 extern int CIFSSMBSetFileSize(const int xid, struct cifs_tcon *tcon,
275 __u64 size, __u16 fileHandle, __u32 opener_pid,
278 struct cifs_unix_set_info_args {
288 extern int CIFSSMBUnixSetFileInfo(const int xid, struct cifs_tcon *tcon,
289 const struct cifs_unix_set_info_args *args,
290 u16 fid, u32 pid_of_opener);
292 extern int CIFSSMBUnixSetPathInfo(const int xid, struct cifs_tcon *pTcon,
294 const struct cifs_unix_set_info_args *args,
295 const struct nls_table *nls_codepage,
296 int remap_special_chars);
298 extern int CIFSSMBMkDir(const int xid, struct cifs_tcon *tcon,
300 const struct nls_table *nls_codepage,
301 int remap_special_chars);
302 extern int CIFSSMBRmDir(const int xid, struct cifs_tcon *tcon,
303 const char *name, const struct nls_table *nls_codepage,
304 int remap_special_chars);
305 extern int CIFSPOSIXDelFile(const int xid, struct cifs_tcon *tcon,
306 const char *name, __u16 type,
307 const struct nls_table *nls_codepage,
308 int remap_special_chars);
309 extern int CIFSSMBDelFile(const int xid, struct cifs_tcon *tcon,
311 const struct nls_table *nls_codepage,
312 int remap_special_chars);
313 extern int CIFSSMBRename(const int xid, struct cifs_tcon *tcon,
314 const char *fromName, const char *toName,
315 const struct nls_table *nls_codepage,
316 int remap_special_chars);
317 extern int CIFSSMBRenameOpenFile(const int xid, struct cifs_tcon *pTcon,
318 int netfid, const char *target_name,
319 const struct nls_table *nls_codepage,
320 int remap_special_chars);
321 extern int CIFSCreateHardLink(const int xid,
322 struct cifs_tcon *tcon,
323 const char *fromName, const char *toName,
324 const struct nls_table *nls_codepage,
325 int remap_special_chars);
326 extern int CIFSUnixCreateHardLink(const int xid,
327 struct cifs_tcon *tcon,
328 const char *fromName, const char *toName,
329 const struct nls_table *nls_codepage,
330 int remap_special_chars);
331 extern int CIFSUnixCreateSymLink(const int xid,
332 struct cifs_tcon *tcon,
333 const char *fromName, const char *toName,
334 const struct nls_table *nls_codepage);
335 extern int CIFSSMBUnixQuerySymLink(const int xid,
336 struct cifs_tcon *tcon,
337 const unsigned char *searchName, char **syminfo,
338 const struct nls_table *nls_codepage);
339 #ifdef CONFIG_CIFS_SYMLINK_EXPERIMENTAL
340 extern int CIFSSMBQueryReparseLinkInfo(const int xid,
341 struct cifs_tcon *tcon,
342 const unsigned char *searchName,
343 char *symlinkinfo, const int buflen, __u16 fid,
344 const struct nls_table *nls_codepage);
345 #endif /* temporarily unused until cifs_symlink fixed */
346 extern int CIFSSMBOpen(const int xid, struct cifs_tcon *tcon,
347 const char *fileName, const int disposition,
348 const int access_flags, const int omode,
349 __u16 *netfid, int *pOplock, FILE_ALL_INFO *,
350 const struct nls_table *nls_codepage, int remap);
351 extern int SMBLegacyOpen(const int xid, struct cifs_tcon *tcon,
352 const char *fileName, const int disposition,
353 const int access_flags, const int omode,
354 __u16 *netfid, int *pOplock, FILE_ALL_INFO *,
355 const struct nls_table *nls_codepage, int remap);
356 extern int CIFSPOSIXCreate(const int xid, struct cifs_tcon *tcon,
357 u32 posix_flags, __u64 mode, __u16 *netfid,
358 FILE_UNIX_BASIC_INFO *pRetData,
359 __u32 *pOplock, const char *name,
360 const struct nls_table *nls_codepage, int remap);
361 extern int CIFSSMBClose(const int xid, struct cifs_tcon *tcon,
362 const int smb_file_id);
364 extern int CIFSSMBFlush(const int xid, struct cifs_tcon *tcon,
365 const int smb_file_id);
367 extern int CIFSSMBRead(const int xid, struct cifs_io_parms *io_parms,
368 unsigned int *nbytes, char **buf,
369 int *return_buf_type);
370 extern int CIFSSMBWrite(const int xid, struct cifs_io_parms *io_parms,
371 unsigned int *nbytes, const char *buf,
372 const char __user *ubuf, const int long_op);
373 extern int CIFSSMBWrite2(const int xid, struct cifs_io_parms *io_parms,
374 unsigned int *nbytes, struct kvec *iov, const int nvec,
376 extern int CIFSGetSrvInodeNumber(const int xid, struct cifs_tcon *tcon,
377 const unsigned char *searchName, __u64 *inode_number,
378 const struct nls_table *nls_codepage,
379 int remap_special_chars);
381 extern int cifs_lockv(const int xid, struct cifs_tcon *tcon, const __u16 netfid,
382 const __u8 lock_type, const __u32 num_unlock,
383 const __u32 num_lock, LOCKING_ANDX_RANGE *buf);
384 extern int CIFSSMBLock(const int xid, struct cifs_tcon *tcon,
385 const __u16 netfid, const __u32 netpid, const __u64 len,
386 const __u64 offset, const __u32 numUnlock,
387 const __u32 numLock, const __u8 lockType,
388 const bool waitFlag, const __u8 oplock_level);
389 extern int CIFSSMBPosixLock(const int xid, struct cifs_tcon *tcon,
390 const __u16 smb_file_id, const __u32 netpid,
391 const int get_flag, const __u64 len, struct file_lock *,
392 const __u16 lock_type, const bool waitFlag);
393 extern int CIFSSMBTDis(const int xid, struct cifs_tcon *tcon);
394 extern int CIFSSMBEcho(struct TCP_Server_Info *server);
395 extern int CIFSSMBLogoff(const int xid, struct cifs_ses *ses);
397 extern struct cifs_ses *sesInfoAlloc(void);
398 extern void sesInfoFree(struct cifs_ses *);
399 extern struct cifs_tcon *tconInfoAlloc(void);
400 extern void tconInfoFree(struct cifs_tcon *);
402 extern int cifs_sign_smb(struct smb_hdr *, struct TCP_Server_Info *, __u32 *);
403 extern int cifs_sign_smb2(struct kvec *iov, int n_vec, struct TCP_Server_Info *,
405 extern int cifs_verify_signature(struct kvec *iov, unsigned int nr_iov,
406 struct TCP_Server_Info *server,
407 __u32 expected_sequence_number);
408 extern int SMBNTencrypt(unsigned char *, unsigned char *, unsigned char *,
409 const struct nls_table *);
410 extern int setup_ntlm_response(struct cifs_ses *, const struct nls_table *);
411 extern int setup_ntlmv2_rsp(struct cifs_ses *, const struct nls_table *);
412 extern int cifs_crypto_shash_allocate(struct TCP_Server_Info *);
413 extern void cifs_crypto_shash_release(struct TCP_Server_Info *);
414 extern int calc_seckey(struct cifs_ses *);
416 #ifdef CONFIG_CIFS_WEAK_PW_HASH
417 extern int calc_lanman_hash(const char *password, const char *cryptkey,
418 bool encrypt, char *lnm_session_key);
419 #endif /* CIFS_WEAK_PW_HASH */
420 #ifdef CONFIG_CIFS_DNOTIFY_EXPERIMENTAL /* unused temporarily */
421 extern int CIFSSMBNotify(const int xid, struct cifs_tcon *tcon,
422 const int notify_subdirs, const __u16 netfid,
423 __u32 filter, struct file *file, int multishot,
424 const struct nls_table *nls_codepage);
425 #endif /* was needed for dnotify, and will be needed for inotify when VFS fix */
426 extern int CIFSSMBCopy(int xid,
427 struct cifs_tcon *source_tcon,
428 const char *fromName,
429 const __u16 target_tid,
430 const char *toName, const int flags,
431 const struct nls_table *nls_codepage,
432 int remap_special_chars);
433 extern ssize_t CIFSSMBQAllEAs(const int xid, struct cifs_tcon *tcon,
434 const unsigned char *searchName,
435 const unsigned char *ea_name, char *EAData,
436 size_t bufsize, const struct nls_table *nls_codepage,
437 int remap_special_chars);
438 extern int CIFSSMBSetEA(const int xid, struct cifs_tcon *tcon,
439 const char *fileName, const char *ea_name,
440 const void *ea_value, const __u16 ea_value_len,
441 const struct nls_table *nls_codepage, int remap_special_chars);
442 extern int CIFSSMBGetCIFSACL(const int xid, struct cifs_tcon *tcon,
443 __u16 fid, struct cifs_ntsd **acl_inf, __u32 *buflen);
444 extern int CIFSSMBSetCIFSACL(const int, struct cifs_tcon *, __u16,
445 struct cifs_ntsd *, __u32, int);
446 extern int CIFSSMBGetPosixACL(const int xid, struct cifs_tcon *tcon,
447 const unsigned char *searchName,
448 char *acl_inf, const int buflen, const int acl_type,
449 const struct nls_table *nls_codepage, int remap_special_chars);
450 extern int CIFSSMBSetPosixACL(const int xid, struct cifs_tcon *tcon,
451 const unsigned char *fileName,
452 const char *local_acl, const int buflen, const int acl_type,
453 const struct nls_table *nls_codepage, int remap_special_chars);
454 extern int CIFSGetExtAttr(const int xid, struct cifs_tcon *tcon,
455 const int netfid, __u64 *pExtAttrBits, __u64 *pMask);
456 extern void cifs_autodisable_serverino(struct cifs_sb_info *cifs_sb);
457 extern bool CIFSCouldBeMFSymlink(const struct cifs_fattr *fattr);
458 extern int CIFSCheckMFSymlink(struct cifs_fattr *fattr,
459 const unsigned char *path,
460 struct cifs_sb_info *cifs_sb, int xid);
461 extern int mdfour(unsigned char *, unsigned char *, int);
462 extern int E_md4hash(const unsigned char *passwd, unsigned char *p16,
463 const struct nls_table *codepage);
464 extern int SMBencrypt(unsigned char *passwd, const unsigned char *c8,
467 /* asynchronous read support */
468 struct cifs_readdata {
469 struct kref refcount;
470 struct list_head list;
471 struct completion done;
472 struct cifsFileInfo *cfile;
473 struct address_space *mapping;
478 struct list_head pages;
479 struct work_struct work;
480 int (*marshal_iov) (struct cifs_readdata *rdata,
481 unsigned int remaining);
486 void cifs_readdata_release(struct kref *refcount);
487 int cifs_async_readv(struct cifs_readdata *rdata);
489 /* asynchronous write support */
490 struct cifs_writedata {
491 struct kref refcount;
492 struct list_head list;
493 struct completion done;
494 enum writeback_sync_modes sync_mode;
495 struct work_struct work;
496 struct cifsFileInfo *cfile;
501 void (*marshal_iov) (struct kvec *iov,
502 struct cifs_writedata *wdata);
503 unsigned int nr_pages;
504 struct page *pages[1];
507 int cifs_async_writev(struct cifs_writedata *wdata);
508 void cifs_writev_complete(struct work_struct *work);
509 struct cifs_writedata *cifs_writedata_alloc(unsigned int nr_pages,
510 work_func_t complete);
511 void cifs_writedata_release(struct kref *refcount);
513 #endif /* _CIFSPROTO_H */