| Start/ | End/ | |||
| True | False | - | Line | Source |
| 1 | /* | |||
| 2 | * fs/cifs/cifsfs.c | |||
| 3 | * | |||
| 4 | * Copyright (C) International Business Machines Corp., 2002,2004 | |||
| 5 | * Author(s): Steve French (sfrench@us.ibm.com) | |||
| 6 | * | |||
| 7 | * Common Internet FileSystem (CIFS) client | |||
| 8 | * | |||
| 9 | * This library is free software; you can redistribute it and/or modify | |||
| 10 | * it under the terms of the GNU Lesser General Public License as published | |||
| 11 | * by the Free Software Foundation; either version 2.1 of the License, or | |||
| 12 | * (at your option) any later version. | |||
| 13 | * | |||
| 14 | * This library is distributed in the hope that it will be useful, | |||
| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |||
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See | |||
| 17 | * the GNU Lesser General Public License for more details. | |||
| 18 | * | |||
| 19 | * You should have received a copy of the GNU Lesser General Public License | |||
| 20 | * along with this library; if not, write to the Free Software | |||
| 21 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |||
| 22 | */ | |||
| 23 | ||||
| 24 | /* Note that BB means BUGBUG (ie something to fix eventually) */ | |||
| 25 | ||||
| 26 | #include <linux/module.h> | |||
| 27 | #include <linux/fs.h> | |||
| 28 | #include <linux/mount.h> | |||
| 29 | #include <linux/slab.h> | |||
| 30 | #include <linux/init.h> | |||
| 31 | #include <linux/list.h> | |||
| 32 | #include <linux/seq_file.h> | |||
| 33 | #include <linux/vfs.h> | |||
| 34 | #include <linux/mempool.h> | |||
| 35 | #include <linux/delay.h> | |||
| 36 | #include "cifsfs.h" | |||
| 37 | #include "cifspdu.h" | |||
| 38 | #define DECLARE_GLOBALS_HERE | |||
| 39 | #include "cifsglob.h" | |||
| 40 | #include "cifsproto.h" | |||
| 41 | #include "cifs_debug.h" | |||
| 42 | #include "cifs_fs_sb.h" | |||
| 43 | #include <linux/mm.h> | |||
| 44 | #define CIFS_MAGIC_NUMBER 0xFF534D42 /* the first four bytes of SMB PDUs */ | |||
| 45 | ||||
| 46 | #ifdef CONFIG_CIFS_QUOTA | |||
| 47 | static struct quotactl_ops cifs_quotactl_ops; | |||
| 48 | #endif | |||
| 49 | ||||
| 50 | int cifsFYI = 0; | |||
| 51 | int cifsERROR = 1; | |||
| 52 | int traceSMB = 0; | |||
| 53 | unsigned int oplockEnabled = 1; | |||
| 54 | unsigned int experimEnabled = 0; | |||
| 55 | unsigned int linuxExtEnabled = 1; | |||
| 56 | unsigned int lookupCacheEnabled = 1; | |||
| 57 | unsigned int multiuser_mount = 0; | |||
| 58 | unsigned int extended_security = 0; | |||
| 59 | unsigned int ntlmv2_support = 0; | |||
| 60 | unsigned int sign_CIFS_PDUs = 1; | |||
| 61 | extern struct task_struct * oplockThread; /* remove sparse warning */ | |||
| 62 | struct task_struct * oplockThread = NULL; | |||
| 63 | extern struct task_struct * dnotifyThread; /* remove sparse warning */ | |||
| 64 | struct task_struct * dnotifyThread = NULL; | |||
| 65 | unsigned int CIFSMaxBufSize = CIFS_MAX_MSGSIZE; | |||
| 0 | 0 | - | 66 | module_param(CIFSMaxBufSize, int, 0); |
| 0 | - | 66 | return ( & ( CIFSMaxBufSize ) ) | |
| 67 | MODULE_PARM_DESC(CIFSMaxBufSize,"Network buffer size (not including header). Default: 16384 Range: 8192 to 130048"); | |||
| 68 | unsigned int cifs_min_rcv = CIFS_MIN_RCV_POOL; | |||
| 0 | 0 | - | 69 | module_param(cifs_min_rcv, int, 0); |
| 0 | - | 69 | return ( & ( cifs_min_rcv ) ) | |
| 70 | MODULE_PARM_DESC(cifs_min_rcv,"Network buffers in pool. Default: 4 Range: 1 to 64"); | |||
| 71 | unsigned int cifs_min_small = 30; | |||
| 0 | 0 | - | 72 | module_param(cifs_min_small, int, 0); |
| 0 | - | 72 | return ( & ( cifs_min_small ) ) | |
| 73 | MODULE_PARM_DESC(cifs_min_small,"Small network buffers in pool. Default: 30 Range: 2 to 256"); | |||
| 74 | unsigned int cifs_max_pending = CIFS_MAX_REQ; | |||
| 0 | 0 | - | 75 | module_param(cifs_max_pending, int, 0); |
| 0 | - | 75 | return ( & ( cifs_max_pending ) ) | |
| 76 | MODULE_PARM_DESC(cifs_max_pending,"Simultaneous requests to server. Default: 50 Range: 2 to 256"); | |||
| 77 | ||||
| 78 | static DECLARE_COMPLETION(cifs_oplock_exited); | |||
| 79 | static DECLARE_COMPLETION(cifs_dnotify_exited); | |||
| 80 | ||||
| 81 | extern mempool_t *cifs_sm_req_poolp; | |||
| 82 | extern mempool_t *cifs_req_poolp; | |||
| 83 | extern mempool_t *cifs_mid_poolp; | |||
| 84 | ||||
| 85 | extern kmem_cache_t *cifs_oplock_cachep; | |||
| 86 | ||||
| 87 | static int | |||
| 0 | 0 | - | 88 | cifs_read_super(struct super_block *sb, void *data, |
| 89 | const char *devname, int silent) | |||
| 90 | { | |||
| 91 | struct inode *inode; | |||
| 92 | struct cifs_sb_info *cifs_sb; | |||
| 93 | int rc = 0; | |||
| 94 | ||||
| 95 | sb->s_flags |= MS_NODIRATIME; /* and probably even noatime */ | |||
| 96 | sb->s_fs_info = kmalloc(sizeof(struct cifs_sb_info),GFP_KERNEL); | |||
| 97 | cifs_sb = CIFS_SB(sb); | |||
| 0 | 0 | - | 98 | if(cifs_sb == NULL) |
| 0 | - | 99 | return -ENOMEM; | |
| 100 | else | |||
| 101 | memset(cifs_sb,0,sizeof(struct cifs_sb_info)); | |||
| 102 | ||||
| 103 | ||||
| 104 | rc = cifs_mount(sb, cifs_sb, data, devname); | |||
| 105 | ||||
| 0 | 0 | - | 106 | if (rc) { |
| 0 | 0 | - | 107 | if (!silent) |
| 0 | 0 | - | 108 | cERROR(1, |
| 0 | 0 | - | 108 | if (cifsERROR) |
| 109 | ("cifs_mount failed w/return code = %d", rc)); | |||
| 0 | - | 110 | goto out_mount_failed; | |
| 111 | } | |||
| 112 | ||||
| 113 | sb->s_magic = CIFS_MAGIC_NUMBER; | |||
| 114 | sb->s_op = &cifs_super_ops; | |||
| 115 | /* if(cifs_sb->tcon->ses->server->maxBuf > MAX_CIFS_HDR_SIZE + 512) | |||
| 116 | sb->s_blocksize = cifs_sb->tcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE; */ | |||
| 117 | #ifdef CONFIG_CIFS_QUOTA | |||
| 118 | sb->s_qcop = &cifs_quotactl_ops; | |||
| 119 | #endif | |||
| 120 | sb->s_blocksize = CIFS_MAX_MSGSIZE; | |||
| 121 | sb->s_blocksize_bits = 14; /* default 2**14 = CIFS_MAX_MSGSIZE */ | |||
| 122 | inode = iget(sb, ROOT_I); | |||
| 123 | ||||
| 0 | 0 | - | 124 | if (!inode) { |
| 125 | rc = -ENOMEM; | |||
| 0 | - | 126 | goto out_no_root; | |
| 127 | } | |||
| 128 | ||||
| 129 | sb->s_root = d_alloc_root(inode); | |||
| 130 | ||||
| 0 | 0 | - | 131 | if (!sb->s_root) { |
| 132 | rc = -ENOMEM; | |||
| 0 | - | 133 | goto out_no_root; | |
| 134 | } | |||
| 135 | ||||
| 0 | - | 136 | return 0; | |
| 137 | ||||
| 138 | out_no_root: | |||
| 0 | 0 | - | 139 | cERROR(1, ("cifs_read_super: get root inode failed")); |
| 0 | 0 | - | 139 | if (cifsERROR) |
| 0 | 0 | - | 140 | if (inode) |
| 141 | iput(inode); | |||
| 142 | ||||
| 143 | out_mount_failed: | |||
| 0 | 0 | - | 144 | if(cifs_sb) { |
| 0 | 0 | - | 145 | if(cifs_sb->local_nls) |
| 146 | unload_nls(cifs_sb->local_nls); | |||
| 147 | kfree(cifs_sb); | |||
| 148 | } | |||
| 0 | - | 149 | return rc; | |
| 150 | } | |||
| 151 | ||||
| 152 | static void | |||
| 0 | 0 | - | 153 | cifs_put_super(struct super_block *sb) |
| 154 | { | |||
| 155 | int rc = 0; | |||
| 156 | struct cifs_sb_info *cifs_sb; | |||
| 157 | ||||
| 0 | 0 | - | 158 | cFYI(1, ("In cifs_put_super")); |
| 0 | 0 | - | 158 | if (cifsFYI & 0x01) |
| 159 | cifs_sb = CIFS_SB(sb); | |||
| 0 | 0 | - | 160 | if(cifs_sb == NULL) { |
| 0 | 0 | - | 161 | cFYI(1,("Empty cifs superblock info passed to unmount")); |
| 0 | 0 | - | 161 | if (cifsFYI & 0x01) |
| 0 | - | 162 | return; | |
| 163 | } | |||
| 164 | rc = cifs_umount(sb, cifs_sb); | |||
| 0 | 0 | - | 165 | if (rc) { |
| 0 | 0 | - | 166 | cERROR(1, ("cifs_umount failed with return code %d", rc)); |
| 0 | 0 | - | 166 | if (cifsERROR) |
| 167 | } | |||
| 168 | unload_nls(cifs_sb->local_nls); | |||
| 169 | kfree(cifs_sb); | |||
| 0 | - | 170 | return; | |
| 171 | } | |||
| 172 | ||||
| 173 | static int | |||
| 0 | 0 | - | 174 | cifs_statfs(struct super_block *sb, struct kstatfs *buf) |
| 175 | { | |||
| 176 | int xid; | |||
| 177 | int rc = -EOPNOTSUPP; | |||
| 178 | struct cifs_sb_info *cifs_sb; | |||
| 179 | struct cifsTconInfo *pTcon; | |||
| 180 | ||||
| 0 | 0 | - | 181 | xid = GetXid(); |
| 0 | 0 | - | 181 | if (cifsFYI & 0x01) |
| 182 | ||||
| 183 | cifs_sb = CIFS_SB(sb); | |||
| 184 | pTcon = cifs_sb->tcon; | |||
| 185 | ||||
| 186 | buf->f_type = CIFS_MAGIC_NUMBER; | |||
| 187 | ||||
| 188 | /* instead could get the real value via SMB_QUERY_FS_ATTRIBUTE_INFO */ | |||
| 189 | buf->f_namelen = PATH_MAX; /* PATH_MAX may be too long - it would | |||
| 190 | presumably be total path, but note | |||
| 191 | that some servers (includinng Samba 3) | |||
| 192 | have a shorter maximum path */ | |||
| 193 | buf->f_files = 0; /* undefined */ | |||
| 194 | buf->f_ffree = 0; /* unlimited */ | |||
| 195 | ||||
| 196 | #ifdef CONFIG_CIFS_EXPERIMENTAL | |||
| 197 | /* BB we could add a second check for a QFS Unix capability bit */ | |||
| 198 | /* BB FIXME check CIFS_POSIX_EXTENSIONS Unix cap first FIXME BB */ | |||
| 199 | if ((pTcon->ses->capabilities & CAP_UNIX) && (CIFS_POSIX_EXTENSIONS & | |||
| 200 | le64_to_cpu(pTcon->fsUnixInfo.Capability))) | |||
| 201 | rc = CIFSSMBQFSPosixInfo(xid, pTcon, buf); | |||
| 202 | ||||
| 203 | /* Only need to call the old QFSInfo if failed | |||
| 204 | on newer one */ | |||
| 205 | if(rc) | |||
| 206 | #endif /* CIFS_EXPERIMENTAL */ | |||
| 207 | rc = CIFSSMBQFSInfo(xid, pTcon, buf); | |||
| 208 | ||||
| 209 | /* Old Windows servers do not support level 103, retry with level | |||
| 210 | one if old server failed the previous call */ | |||
| 0 | 0 | - | 211 | if(rc) |
| 212 | rc = SMBOldQFSInfo(xid, pTcon, buf); | |||
| 213 | /* | |||
| 214 | int f_type; | |||
| 215 | __fsid_t f_fsid; | |||
| 216 | int f_namelen; */ | |||
| 217 | /* BB get from info in tcon struct at mount time call to QFSAttrInfo */ | |||
| 0 | 0 | - | 218 | FreeXid(xid); |
| 0 | 0 | - | 218 | if (cifsFYI & 0x01) |
| 0 | - | 219 | return 0; /* always return success? what if volume is no | |
| 220 | longer available? */ | |||
| 221 | } | |||
| 222 | ||||
| 0 | 0 | - | 223 | static int cifs_permission(struct inode * inode, int mask, struct nameidata *nd) |
| 224 | { | |||
| 225 | struct cifs_sb_info *cifs_sb; | |||
| 226 | ||||
| 227 | cifs_sb = CIFS_SB(inode->i_sb); | |||
| 228 | ||||
| 0 | 0 | - | 229 | if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_PERM) { |
| 0 | - | 230 | return 0; | |
| 231 | } else /* file mode might have been restricted at mount time | |||
| 232 | on the client (above and beyond ACL on servers) for | |||
| 233 | servers which do not support setting and viewing mode bits, | |||
| 234 | so allowing client to check permissions is useful */ | |||
| 0 | - | 235 | return generic_permission(inode, mask, NULL); | |
| 236 | } | |||
| 237 | ||||
| 238 | static kmem_cache_t *cifs_inode_cachep; | |||
| 239 | static kmem_cache_t *cifs_req_cachep; | |||
| 240 | static kmem_cache_t *cifs_mid_cachep; | |||
| 241 | kmem_cache_t *cifs_oplock_cachep; | |||
| 242 | static kmem_cache_t *cifs_sm_req_cachep; | |||
| 243 | mempool_t *cifs_sm_req_poolp; | |||
| 244 | mempool_t *cifs_req_poolp; | |||
| 245 | mempool_t *cifs_mid_poolp; | |||
| 246 | ||||
| 247 | static struct inode * | |||
| 0 | 0 | - | 248 | cifs_alloc_inode(struct super_block *sb) |
| 249 | { | |||
| 250 | struct cifsInodeInfo *cifs_inode; | |||
| 251 | cifs_inode = kmem_cache_alloc(cifs_inode_cachep, SLAB_KERNEL); | |||
| 0 | 0 | - | 252 | if (!cifs_inode) |
| 0 | - | 253 | return NULL; | |
| 254 | cifs_inode->cifsAttrs = 0x20; /* default */ | |||
| 255 | atomic_set(&cifs_inode->inUse, 0); | |||
| 256 | cifs_inode->time = 0; | |||
| 257 | /* Until the file is open and we have gotten oplock | |||
| 258 | info back from the server, can not assume caching of | |||
| 259 | file data or metadata */ | |||
| 260 | cifs_inode->clientCanCacheRead = FALSE; | |||
| 261 | cifs_inode->clientCanCacheAll = FALSE; | |||
| 262 | cifs_inode->vfs_inode.i_blksize = CIFS_MAX_MSGSIZE; | |||
| 263 | cifs_inode->vfs_inode.i_blkbits = 14; /* 2**14 = CIFS_MAX_MSGSIZE */ | |||
| 264 | cifs_inode->vfs_inode.i_flags = S_NOATIME | S_NOCMTIME; | |||
| 265 | INIT_LIST_HEAD(&cifs_inode->openFileList); | |||
| 0 | - | 266 | return &cifs_inode->vfs_inode; | |
| 267 | } | |||
| 268 | ||||
| 269 | static void | |||
| 0 | 0 | - | 270 | cifs_destroy_inode(struct inode *inode) |
| 271 | { | |||
| 272 | kmem_cache_free(cifs_inode_cachep, CIFS_I(inode)); | |||
| 273 | } | |||
| 274 | ||||
| 275 | /* | |||
| 276 | * cifs_show_options() is for displaying mount options in /proc/mounts. | |||
| 277 | * Not all settable options are displayed but most of the important | |||
| 278 | * ones are. | |||
| 279 | */ | |||
| 280 | static int | |||
| 0 | 0 | - | 281 | cifs_show_options(struct seq_file *s, struct vfsmount *m) |
| 282 | { | |||
| 283 | struct cifs_sb_info *cifs_sb; | |||
| 284 | ||||
| 285 | cifs_sb = CIFS_SB(m->mnt_sb); | |||
| 286 | ||||
| 0 | 0 | - | 287 | if (cifs_sb) { |
| 0 | 0 | - | 288 | if (cifs_sb->tcon) { |
| 289 | seq_printf(s, ",unc=%s", cifs_sb->tcon->treeName); | |||
| 0 | 0 | - | 290 | if (cifs_sb->tcon->ses) { |
| 0 | 0 | - | 291 | if (cifs_sb->tcon->ses->userName) |
| 292 | seq_printf(s, ",username=%s", | |||
| 293 | cifs_sb->tcon->ses->userName); | |||
| 0 | 0 | - | 294 | if(cifs_sb->tcon->ses->domainName) |
| 295 | seq_printf(s, ",domain=%s", | |||
| 296 | cifs_sb->tcon->ses->domainName); | |||
| 297 | } | |||
| 298 | } | |||
| 299 | seq_printf(s, ",rsize=%d",cifs_sb->rsize); | |||
| 300 | seq_printf(s, ",wsize=%d",cifs_sb->wsize); | |||
| 301 | } | |||
| 0 | - | 302 | return 0; | |
| 303 | } | |||
| 304 | ||||
| 305 | #ifdef CONFIG_CIFS_QUOTA | |||
| 306 | int cifs_xquota_set(struct super_block * sb, int quota_type, qid_t qid, | |||
| 307 | struct fs_disk_quota * pdquota) | |||
| 308 | { | |||
| 309 | int xid; | |||
| 310 | int rc = 0; | |||
| 311 | struct cifs_sb_info *cifs_sb = CIFS_SB(sb); | |||
| 312 | struct cifsTconInfo *pTcon; | |||
| 313 | ||||
| 314 | if(cifs_sb) | |||
| 315 | pTcon = cifs_sb->tcon; | |||
| 316 | else | |||
| 317 | return -EIO; | |||
| 318 | ||||
| 319 | ||||
| 320 | xid = GetXid(); | |||
| 321 | if(pTcon) { | |||
| 322 | cFYI(1,("set type: 0x%x id: %d",quota_type,qid)); | |||
| 323 | } else { | |||
| 324 | return -EIO; | |||
| 325 | } | |||
| 326 | ||||
| 327 | FreeXid(xid); | |||
| 328 | return rc; | |||
| 329 | } | |||
| 330 | ||||
| 331 | int cifs_xquota_get(struct super_block * sb, int quota_type, qid_t qid, | |||
| 332 | struct fs_disk_quota * pdquota) | |||
| 333 | { | |||
| 334 | int xid; | |||
| 335 | int rc = 0; | |||
| 336 | struct cifs_sb_info *cifs_sb = CIFS_SB(sb); | |||
| 337 | struct cifsTconInfo *pTcon; | |||
| 338 | ||||
| 339 | if(cifs_sb) | |||
| 340 | pTcon = cifs_sb->tcon; | |||
| 341 | else | |||
| 342 | return -EIO; | |||
| 343 | ||||
| 344 | xid = GetXid(); | |||
| 345 | if(pTcon) { | |||
| 346 | cFYI(1,("set type: 0x%x id: %d",quota_type,qid)); | |||
| 347 | } else { | |||
| 348 | rc = -EIO; | |||
| 349 | } | |||
| 350 | ||||
| 351 | FreeXid(xid); | |||
| 352 | return rc; | |||
| 353 | } | |||
| 354 | ||||
| 355 | int cifs_xstate_set(struct super_block * sb, unsigned int flags, int operation) | |||
| 356 | { | |||
| 357 | int xid; | |||
| 358 | int rc = 0; | |||
| 359 | struct cifs_sb_info *cifs_sb = CIFS_SB(sb); | |||
| 360 | struct cifsTconInfo *pTcon; | |||
| 361 | ||||
| 362 | if(cifs_sb) | |||
| 363 | pTcon = cifs_sb->tcon; | |||
| 364 | else | |||
| 365 | return -EIO; | |||
| 366 | ||||
| 367 | xid = GetXid(); | |||
| 368 | if(pTcon) { | |||
| 369 | cFYI(1,("flags: 0x%x operation: 0x%x",flags,operation)); | |||
| 370 | } else { | |||
| 371 | rc = -EIO; | |||
| 372 | } | |||
| 373 | ||||
| 374 | FreeXid(xid); | |||
| 375 | return rc; | |||
| 376 | } | |||
| 377 | ||||
| 378 | int cifs_xstate_get(struct super_block * sb, struct fs_quota_stat *qstats) | |||
| 379 | { | |||
| 380 | int xid; | |||
| 381 | int rc = 0; | |||
| 382 | struct cifs_sb_info *cifs_sb = CIFS_SB(sb); | |||
| 383 | struct cifsTconInfo *pTcon; | |||
| 384 | ||||
| 385 | if(cifs_sb) { | |||
| 386 | pTcon = cifs_sb->tcon; | |||
| 387 | } else { | |||
| 388 | return -EIO; | |||
| 389 | } | |||
| 390 | xid = GetXid(); | |||
| 391 | if(pTcon) { | |||
| 392 | cFYI(1,("pqstats %p",qstats)); | |||
| 393 | } else { | |||
| 394 | rc = -EIO; | |||
| 395 | } | |||
| 396 | ||||
| 397 | FreeXid(xid); | |||
| 398 | return rc; | |||
| 399 | } | |||
| 400 | ||||
| 401 | static struct quotactl_ops cifs_quotactl_ops = { | |||
| 402 | .set_xquota = cifs_xquota_set, | |||
| 403 | .get_xquota = cifs_xquota_set, | |||
| 404 | .set_xstate = cifs_xstate_set, | |||
| 405 | .get_xstate = cifs_xstate_get, | |||
| 406 | }; | |||
| 407 | #endif | |||
| 408 | ||||
| 409 | #ifdef CONFIG_CIFS_EXPERIMENTAL | |||
| 410 | static void cifs_umount_begin(struct super_block * sblock) | |||
| 411 | { | |||
| 412 | struct cifs_sb_info *cifs_sb; | |||
| 413 | struct cifsTconInfo * tcon; | |||
| 414 | ||||
| 415 | cifs_sb = CIFS_SB(sblock); | |||
| 416 | if(cifs_sb == NULL) | |||
| 417 | return; | |||
| 418 | ||||
| 419 | tcon = cifs_sb->tcon; | |||
| 420 | if(tcon == NULL) | |||
| 421 | return; | |||
| 422 | down(&tcon->tconSem); | |||
| 423 | if (atomic_read(&tcon->useCount) == 1) | |||
| 424 | tcon->tidStatus = CifsExiting; | |||
| 425 | up(&tcon->tconSem); | |||
| 426 | ||||
| 427 | /* cancel_brl_requests(tcon); */ | |||
| 428 | /* cancel_notify_requests(tcon); */ | |||
| 429 | if(tcon->ses && tcon->ses->server) | |||
| 430 | { | |||
| 431 | cFYI(1,("wake up tasks now - umount begin not complete")); | |||
| 432 | wake_up_all(&tcon->ses->server->request_q); | |||
| 433 | wake_up_all(&tcon->ses->server->response_q); | |||
| 434 | msleep(1); /* yield */ | |||
| 435 | /* we have to kick the requests once more */ | |||
| 436 | wake_up_all(&tcon->ses->server->response_q); | |||
| 437 | msleep(1); | |||
| 438 | } | |||
| 439 | /* BB FIXME - finish add checks for tidStatus BB */ | |||
| 440 | ||||
| 441 | return; | |||
| 442 | } | |||
| 443 | #endif | |||
| 444 | ||||
| 0 | 0 | - | 445 | static int cifs_remount(struct super_block *sb, int *flags, char *data) |
| 446 | { | |||
| 447 | *flags |= MS_NODIRATIME; | |||
| 0 | - | 448 | return 0; | |
| 449 | } | |||
| 450 | ||||
| 451 | struct super_operations cifs_super_ops = { | |||
| 452 | .read_inode = cifs_read_inode, | |||
| 453 | .put_super = cifs_put_super, | |||
| 454 | .statfs = cifs_statfs, | |||
| 455 | .alloc_inode = cifs_alloc_inode, | |||
| 456 | .destroy_inode = cifs_destroy_inode, | |||
| 457 | /* .drop_inode = generic_delete_inode, | |||
| 458 | .delete_inode = cifs_delete_inode, *//* Do not need the above two functions | |||
| 459 | unless later we add lazy close of inodes or unless the kernel forgets to call | |||
| 460 | us with the same number of releases (closes) as opens */ | |||
| 461 | .show_options = cifs_show_options, | |||
| 462 | #ifdef CONFIG_CIFS_EXPERIMENTAL | |||
| 463 | .umount_begin = cifs_umount_begin, | |||
| 464 | #endif | |||
| 465 | .remount_fs = cifs_remount, | |||
| 466 | }; | |||
| 467 | ||||
| 468 | static struct super_block * | |||
| 0 | 0 | - | 469 | cifs_get_sb(struct file_system_type *fs_type, |
| 470 | int flags, const char *dev_name, void *data) | |||
| 471 | { | |||
| 472 | int rc; | |||
| 473 | struct super_block *sb = sget(fs_type, NULL, set_anon_super, NULL); | |||
| 474 | ||||
| 0 | 0 | - | 475 | cFYI(1, ("Devname: %s flags: %d ", dev_name, flags)); |
| 0 | 0 | - | 475 | if (cifsFYI & 0x01) |
| 476 | ||||
| 0 | 0 | - | 477 | if (IS_ERR(sb)) |
| 0 | - | 478 | return sb; | |
| 479 | ||||
| 480 | sb->s_flags = flags; | |||
| 481 | ||||
| 482 | rc = cifs_read_super(sb, data, dev_name, flags & MS_VERBOSE ? 1 : 0); | |||
| 0 | 0 | - | 482 | ternary-?: flags & 32768 |
| 0 | 0 | - | 483 | if (rc) { |
| 484 | up_write(&sb->s_umount); | |||
| 485 | deactivate_super(sb); | |||
| 0 | - | 486 | return ERR_PTR(rc); | |
| 487 | } | |||
| 488 | sb->s_flags |= MS_ACTIVE; | |||
| 0 | - | 489 | return sb; | |
| 490 | } | |||
| 491 | ||||
| 0 | 0 | - | 492 | static ssize_t cifs_file_writev(struct file *file, const struct iovec *iov, |
| 493 | unsigned long nr_segs, loff_t *ppos) | |||
| 494 | { | |||
| 495 | struct inode *inode = file->f_dentry->d_inode; | |||
| 496 | ssize_t written; | |||
| 497 | ||||
| 498 | written = generic_file_writev(file, iov, nr_segs, ppos); | |||
| 0 | 0 | - | 499 | if (!CIFS_I(inode)->clientCanCacheAll) |
| 500 | filemap_fdatawrite(inode->i_mapping); | |||
| 0 | - | 501 | return written; | |
| 502 | } | |||
| 503 | ||||
| 0 | 0 | - | 504 | static ssize_t cifs_file_aio_write(struct kiocb *iocb, const char __user *buf, |
| 505 | size_t count, loff_t pos) | |||
| 506 | { | |||
| 507 | struct inode *inode = iocb->ki_filp->f_dentry->d_inode; | |||
| 508 | ssize_t written; | |||
| 509 | ||||
| 510 | written = generic_file_aio_write(iocb, buf, count, pos); | |||
| 0 | 0 | - | 511 | if (!CIFS_I(inode)->clientCanCacheAll) |
| 512 | filemap_fdatawrite(inode->i_mapping); | |||
| 0 | - | 513 | return written; | |
| 514 | } | |||
| 515 | ||||
| 0 | 0 | - | 516 | static loff_t cifs_llseek(struct file *file, loff_t offset, int origin) |
| 517 | { | |||
| 518 | /* origin == SEEK_END => we must revalidate the cached file length */ | |||
| 0 | 0 | - | 519 | if (origin == 2) { |
| 520 | int retval = cifs_revalidate(file->f_dentry); | |||
| 0 | 0 | - | 521 | if (retval < 0) |
| 0 | - | 522 | return (loff_t)retval; | |
| 523 | } | |||
| 0 | - | 524 | return remote_llseek(file, offset, origin); | |
| 525 | } | |||
| 526 | ||||
| 527 | static struct file_system_type cifs_fs_type = { | |||
| 528 | .owner = THIS_MODULE, | |||
| 529 | .name = "cifs", | |||
| 530 | .get_sb = cifs_get_sb, | |||
| 531 | .kill_sb = kill_anon_super, | |||
| 532 | /* .fs_flags */ | |||
| 533 | }; | |||
| 534 | struct inode_operations cifs_dir_inode_ops = { | |||
| 535 | .create = cifs_create, | |||
| 536 | .lookup = cifs_lookup, | |||
| 537 | .getattr = cifs_getattr, | |||
| 538 | .unlink = cifs_unlink, | |||
| 539 | .link = cifs_hardlink, | |||
| 540 | .mkdir = cifs_mkdir, | |||
| 541 | .rmdir = cifs_rmdir, | |||
| 542 | .rename = cifs_rename, | |||
| 543 | .permission = cifs_permission, | |||
| 544 | /* revalidate:cifs_revalidate, */ | |||
| 545 | .setattr = cifs_setattr, | |||
| 546 | .symlink = cifs_symlink, | |||
| 547 | .mknod = cifs_mknod, | |||
| 548 | #ifdef CONFIG_CIFS_XATTR | |||
| 549 | .setxattr = cifs_setxattr, | |||
| 550 | .getxattr = cifs_getxattr, | |||
| 551 | .listxattr = cifs_listxattr, | |||
| 552 | .removexattr = cifs_removexattr, | |||
| 553 | #endif | |||
| 554 | }; | |||
| 555 | ||||
| 556 | struct inode_operations cifs_file_inode_ops = { | |||
| 557 | /* revalidate:cifs_revalidate, */ | |||
| 558 | .setattr = cifs_setattr, | |||
| 559 | .getattr = cifs_getattr, /* do we need this anymore? */ | |||
| 560 | .rename = cifs_rename, | |||
| 561 | .permission = cifs_permission, | |||
| 562 | #ifdef CONFIG_CIFS_XATTR | |||
| 563 | .setxattr = cifs_setxattr, | |||
| < | ||||