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-rw-r--r--fs/9p/vfs_inode.c753
1 files changed, 283 insertions, 470 deletions
diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c
index c76cd8fa3f6c..c602c0e054a2 100644
--- a/fs/9p/vfs_inode.c
+++ b/fs/9p/vfs_inode.c
@@ -34,10 +34,10 @@
34#include <linux/namei.h> 34#include <linux/namei.h>
35#include <linux/idr.h> 35#include <linux/idr.h>
36#include <linux/sched.h> 36#include <linux/sched.h>
37#include <net/9p/9p.h>
38#include <net/9p/client.h>
37 39
38#include "debug.h"
39#include "v9fs.h" 40#include "v9fs.h"
40#include "9p.h"
41#include "v9fs_vfs.h" 41#include "v9fs_vfs.h"
42#include "fid.h" 42#include "fid.h"
43 43
@@ -58,27 +58,27 @@ static int unixmode2p9mode(struct v9fs_session_info *v9ses, int mode)
58 int res; 58 int res;
59 res = mode & 0777; 59 res = mode & 0777;
60 if (S_ISDIR(mode)) 60 if (S_ISDIR(mode))
61 res |= V9FS_DMDIR; 61 res |= P9_DMDIR;
62 if (v9ses->extended) { 62 if (v9ses->extended) {
63 if (S_ISLNK(mode)) 63 if (S_ISLNK(mode))
64 res |= V9FS_DMSYMLINK; 64 res |= P9_DMSYMLINK;
65 if (v9ses->nodev == 0) { 65 if (v9ses->nodev == 0) {
66 if (S_ISSOCK(mode)) 66 if (S_ISSOCK(mode))
67 res |= V9FS_DMSOCKET; 67 res |= P9_DMSOCKET;
68 if (S_ISFIFO(mode)) 68 if (S_ISFIFO(mode))
69 res |= V9FS_DMNAMEDPIPE; 69 res |= P9_DMNAMEDPIPE;
70 if (S_ISBLK(mode)) 70 if (S_ISBLK(mode))
71 res |= V9FS_DMDEVICE; 71 res |= P9_DMDEVICE;
72 if (S_ISCHR(mode)) 72 if (S_ISCHR(mode))
73 res |= V9FS_DMDEVICE; 73 res |= P9_DMDEVICE;
74 } 74 }
75 75
76 if ((mode & S_ISUID) == S_ISUID) 76 if ((mode & S_ISUID) == S_ISUID)
77 res |= V9FS_DMSETUID; 77 res |= P9_DMSETUID;
78 if ((mode & S_ISGID) == S_ISGID) 78 if ((mode & S_ISGID) == S_ISGID)
79 res |= V9FS_DMSETGID; 79 res |= P9_DMSETGID;
80 if ((mode & V9FS_DMLINK)) 80 if ((mode & P9_DMLINK))
81 res |= V9FS_DMLINK; 81 res |= P9_DMLINK;
82 } 82 }
83 83
84 return res; 84 return res;
@@ -97,27 +97,27 @@ static int p9mode2unixmode(struct v9fs_session_info *v9ses, int mode)
97 97
98 res = mode & 0777; 98 res = mode & 0777;
99 99
100 if ((mode & V9FS_DMDIR) == V9FS_DMDIR) 100 if ((mode & P9_DMDIR) == P9_DMDIR)
101 res |= S_IFDIR; 101 res |= S_IFDIR;
102 else if ((mode & V9FS_DMSYMLINK) && (v9ses->extended)) 102 else if ((mode & P9_DMSYMLINK) && (v9ses->extended))
103 res |= S_IFLNK; 103 res |= S_IFLNK;
104 else if ((mode & V9FS_DMSOCKET) && (v9ses->extended) 104 else if ((mode & P9_DMSOCKET) && (v9ses->extended)
105 && (v9ses->nodev == 0)) 105 && (v9ses->nodev == 0))
106 res |= S_IFSOCK; 106 res |= S_IFSOCK;
107 else if ((mode & V9FS_DMNAMEDPIPE) && (v9ses->extended) 107 else if ((mode & P9_DMNAMEDPIPE) && (v9ses->extended)
108 && (v9ses->nodev == 0)) 108 && (v9ses->nodev == 0))
109 res |= S_IFIFO; 109 res |= S_IFIFO;
110 else if ((mode & V9FS_DMDEVICE) && (v9ses->extended) 110 else if ((mode & P9_DMDEVICE) && (v9ses->extended)
111 && (v9ses->nodev == 0)) 111 && (v9ses->nodev == 0))
112 res |= S_IFBLK; 112 res |= S_IFBLK;
113 else 113 else
114 res |= S_IFREG; 114 res |= S_IFREG;
115 115
116 if (v9ses->extended) { 116 if (v9ses->extended) {
117 if ((mode & V9FS_DMSETUID) == V9FS_DMSETUID) 117 if ((mode & P9_DMSETUID) == P9_DMSETUID)
118 res |= S_ISUID; 118 res |= S_ISUID;
119 119
120 if ((mode & V9FS_DMSETGID) == V9FS_DMSETGID) 120 if ((mode & P9_DMSETGID) == P9_DMSETGID)
121 res |= S_ISGID; 121 res |= S_ISGID;
122 } 122 }
123 123
@@ -132,26 +132,26 @@ int v9fs_uflags2omode(int uflags)
132 switch (uflags&3) { 132 switch (uflags&3) {
133 default: 133 default:
134 case O_RDONLY: 134 case O_RDONLY:
135 ret = V9FS_OREAD; 135 ret = P9_OREAD;
136 break; 136 break;
137 137
138 case O_WRONLY: 138 case O_WRONLY:
139 ret = V9FS_OWRITE; 139 ret = P9_OWRITE;
140 break; 140 break;
141 141
142 case O_RDWR: 142 case O_RDWR:
143 ret = V9FS_ORDWR; 143 ret = P9_ORDWR;
144 break; 144 break;
145 } 145 }
146 146
147 if (uflags & O_EXCL) 147 if (uflags & O_EXCL)
148 ret |= V9FS_OEXCL; 148 ret |= P9_OEXCL;
149 149
150 if (uflags & O_TRUNC) 150 if (uflags & O_TRUNC)
151 ret |= V9FS_OTRUNC; 151 ret |= P9_OTRUNC;
152 152
153 if (uflags & O_APPEND) 153 if (uflags & O_APPEND)
154 ret |= V9FS_OAPPEND; 154 ret |= P9_OAPPEND;
155 155
156 return ret; 156 return ret;
157} 157}
@@ -164,7 +164,7 @@ int v9fs_uflags2omode(int uflags)
164 */ 164 */
165 165
166static void 166static void
167v9fs_blank_wstat(struct v9fs_wstat *wstat) 167v9fs_blank_wstat(struct p9_wstat *wstat)
168{ 168{
169 wstat->type = ~0; 169 wstat->type = ~0;
170 wstat->dev = ~0; 170 wstat->dev = ~0;
@@ -197,7 +197,7 @@ struct inode *v9fs_get_inode(struct super_block *sb, int mode)
197 struct inode *inode; 197 struct inode *inode;
198 struct v9fs_session_info *v9ses = sb->s_fs_info; 198 struct v9fs_session_info *v9ses = sb->s_fs_info;
199 199
200 dprintk(DEBUG_VFS, "super block: %p mode: %o\n", sb, mode); 200 P9_DPRINTK(P9_DEBUG_VFS, "super block: %p mode: %o\n", sb, mode);
201 201
202 inode = new_inode(sb); 202 inode = new_inode(sb);
203 if (inode) { 203 if (inode) {
@@ -215,7 +215,8 @@ struct inode *v9fs_get_inode(struct super_block *sb, int mode)
215 case S_IFCHR: 215 case S_IFCHR:
216 case S_IFSOCK: 216 case S_IFSOCK:
217 if(!v9ses->extended) { 217 if(!v9ses->extended) {
218 dprintk(DEBUG_ERROR, "special files without extended mode\n"); 218 P9_DPRINTK(P9_DEBUG_ERROR,
219 "special files without extended mode\n");
219 return ERR_PTR(-EINVAL); 220 return ERR_PTR(-EINVAL);
220 } 221 }
221 init_special_inode(inode, inode->i_mode, 222 init_special_inode(inode, inode->i_mode,
@@ -227,7 +228,8 @@ struct inode *v9fs_get_inode(struct super_block *sb, int mode)
227 break; 228 break;
228 case S_IFLNK: 229 case S_IFLNK:
229 if(!v9ses->extended) { 230 if(!v9ses->extended) {
230 dprintk(DEBUG_ERROR, "extended modes used w/o 9P2000.u\n"); 231 P9_DPRINTK(P9_DEBUG_ERROR,
232 "extended modes used w/o 9P2000.u\n");
231 return ERR_PTR(-EINVAL); 233 return ERR_PTR(-EINVAL);
232 } 234 }
233 inode->i_op = &v9fs_symlink_inode_operations; 235 inode->i_op = &v9fs_symlink_inode_operations;
@@ -241,71 +243,19 @@ struct inode *v9fs_get_inode(struct super_block *sb, int mode)
241 inode->i_fop = &v9fs_dir_operations; 243 inode->i_fop = &v9fs_dir_operations;
242 break; 244 break;
243 default: 245 default:
244 dprintk(DEBUG_ERROR, "BAD mode 0x%x S_IFMT 0x%x\n", 246 P9_DPRINTK(P9_DEBUG_ERROR,
247 "BAD mode 0x%x S_IFMT 0x%x\n",
245 mode, mode & S_IFMT); 248 mode, mode & S_IFMT);
246 return ERR_PTR(-EINVAL); 249 return ERR_PTR(-EINVAL);
247 } 250 }
248 } else { 251 } else {
249 eprintk(KERN_WARNING, "Problem allocating inode\n"); 252 P9_EPRINTK(KERN_WARNING, "Problem allocating inode\n");
250 return ERR_PTR(-ENOMEM); 253 return ERR_PTR(-ENOMEM);
251 } 254 }
252 return inode; 255 return inode;
253} 256}
254 257
255static int 258/*
256v9fs_create(struct v9fs_session_info *v9ses, u32 pfid, char *name, u32 perm,
257 u8 mode, char *extension, u32 *fidp, struct v9fs_qid *qid, u32 *iounit)
258{
259 int fid;
260 int err;
261 struct v9fs_fcall *fcall;
262
263 fid = v9fs_get_idpool(&v9ses->fidpool);
264 if (fid < 0) {
265 eprintk(KERN_WARNING, "no free fids available\n");
266 return -ENOSPC;
267 }
268
269 err = v9fs_t_walk(v9ses, pfid, fid, NULL, &fcall);
270 if (err < 0) {
271 PRINT_FCALL_ERROR("clone error", fcall);
272 if (fcall && fcall->id == RWALK)
273 goto clunk_fid;
274 else
275 goto put_fid;
276 }
277 kfree(fcall);
278
279 err = v9fs_t_create(v9ses, fid, name, perm, mode, extension, &fcall);
280 if (err < 0) {
281 PRINT_FCALL_ERROR("create fails", fcall);
282 goto clunk_fid;
283 }
284
285 if (iounit)
286 *iounit = fcall->params.rcreate.iounit;
287
288 if (qid)
289 *qid = fcall->params.rcreate.qid;
290
291 if (fidp)
292 *fidp = fid;
293
294 kfree(fcall);
295 return 0;
296
297clunk_fid:
298 v9fs_t_clunk(v9ses, fid);
299 fid = V9FS_NOFID;
300
301put_fid:
302 if (fid != V9FS_NOFID)
303 v9fs_put_idpool(fid, &v9ses->fidpool);
304
305 kfree(fcall);
306 return err;
307}
308
309static struct v9fs_fid* 259static struct v9fs_fid*
310v9fs_clone_walk(struct v9fs_session_info *v9ses, u32 fid, struct dentry *dentry) 260v9fs_clone_walk(struct v9fs_session_info *v9ses, u32 fid, struct dentry *dentry)
311{ 261{
@@ -355,23 +305,25 @@ error:
355 kfree(fcall); 305 kfree(fcall);
356 return ERR_PTR(err); 306 return ERR_PTR(err);
357} 307}
308*/
358 309
359static struct inode * 310static struct inode *
360v9fs_inode_from_fid(struct v9fs_session_info *v9ses, u32 fid, 311v9fs_inode_from_fid(struct v9fs_session_info *v9ses, struct p9_fid *fid,
361 struct super_block *sb) 312 struct super_block *sb)
362{ 313{
363 int err, umode; 314 int err, umode;
364 struct inode *ret; 315 struct inode *ret;
365 struct v9fs_fcall *fcall; 316 struct p9_stat *st;
366 317
367 ret = NULL; 318 ret = NULL;
368 err = v9fs_t_stat(v9ses, fid, &fcall); 319 st = p9_client_stat(fid);
369 if (err) { 320 if (IS_ERR(st)) {
370 PRINT_FCALL_ERROR("stat error", fcall); 321 err = PTR_ERR(st);
322 st = NULL;
371 goto error; 323 goto error;
372 } 324 }
373 325
374 umode = p9mode2unixmode(v9ses, fcall->params.rstat.stat.mode); 326 umode = p9mode2unixmode(v9ses, st->mode);
375 ret = v9fs_get_inode(sb, umode); 327 ret = v9fs_get_inode(sb, umode);
376 if (IS_ERR(ret)) { 328 if (IS_ERR(ret)) {
377 err = PTR_ERR(ret); 329 err = PTR_ERR(ret);
@@ -379,12 +331,13 @@ v9fs_inode_from_fid(struct v9fs_session_info *v9ses, u32 fid,
379 goto error; 331 goto error;
380 } 332 }
381 333
382 v9fs_stat2inode(&fcall->params.rstat.stat, ret, sb); 334 v9fs_stat2inode(st, ret, sb);
383 kfree(fcall); 335 ret->i_ino = v9fs_qid2ino(&st->qid);
336 kfree(st);
384 return ret; 337 return ret;
385 338
386error: 339error:
387 kfree(fcall); 340 kfree(st);
388 if (ret) 341 if (ret)
389 iput(ret); 342 iput(ret);
390 343
@@ -401,43 +354,20 @@ error:
401 354
402static int v9fs_remove(struct inode *dir, struct dentry *file, int rmdir) 355static int v9fs_remove(struct inode *dir, struct dentry *file, int rmdir)
403{ 356{
404 struct v9fs_fcall *fcall = NULL; 357 struct inode *file_inode;
405 struct super_block *sb = NULL; 358 struct v9fs_session_info *v9ses;
406 struct v9fs_session_info *v9ses = NULL; 359 struct p9_fid *v9fid;
407 struct v9fs_fid *v9fid = NULL;
408 struct inode *file_inode = NULL;
409 int fid = -1;
410 int result = 0;
411 360
412 dprintk(DEBUG_VFS, "inode: %p dentry: %p rmdir: %d\n", dir, file, 361 P9_DPRINTK(P9_DEBUG_VFS, "inode: %p dentry: %p rmdir: %d\n", dir, file,
413 rmdir); 362 rmdir);
414 363
415 file_inode = file->d_inode; 364 file_inode = file->d_inode;
416 sb = file_inode->i_sb;
417 v9ses = v9fs_inode2v9ses(file_inode); 365 v9ses = v9fs_inode2v9ses(file_inode);
418 v9fid = v9fs_fid_clone(file); 366 v9fid = v9fs_fid_clone(file);
419 if(IS_ERR(v9fid)) 367 if(IS_ERR(v9fid))
420 return PTR_ERR(v9fid); 368 return PTR_ERR(v9fid);
421 369
422 fid = v9fid->fid; 370 return p9_client_remove(v9fid);
423 if (fid < 0) {
424 dprintk(DEBUG_ERROR, "inode #%lu, no fid!\n",
425 file_inode->i_ino);
426 return -EBADF;
427 }
428
429 result = v9fs_t_remove(v9ses, fid, &fcall);
430 if (result < 0) {
431 PRINT_FCALL_ERROR("remove fails", fcall);
432 goto Error;
433 }
434
435 v9fs_put_idpool(fid, &v9ses->fidpool);
436 v9fs_fid_destroy(v9fid);
437
438Error:
439 kfree(fcall);
440 return result;
441} 371}
442 372
443static int 373static int
@@ -446,61 +376,59 @@ v9fs_open_created(struct inode *inode, struct file *file)
446 return 0; 376 return 0;
447} 377}
448 378
379
449/** 380/**
450 * v9fs_vfs_create - VFS hook to create files 381 * v9fs_create - Create a file
451 * @inode: directory inode that is being deleted 382 * @dentry: dentry that is being created
452 * @dentry: dentry that is being deleted 383 * @perm: create permissions
453 * @mode: create permissions 384 * @mode: open mode
454 * @nd: path information
455 * 385 *
456 */ 386 */
457 387static struct p9_fid *
458static int 388v9fs_create(struct v9fs_session_info *v9ses, struct inode *dir,
459v9fs_vfs_create(struct inode *dir, struct dentry *dentry, int mode, 389 struct dentry *dentry, char *extension, u32 perm, u8 mode)
460 struct nameidata *nd)
461{ 390{
462 int err; 391 int err;
463 u32 fid, perm, iounit; 392 char *name;
464 int flags; 393 struct p9_fid *dfid, *ofid, *fid;
465 struct v9fs_session_info *v9ses;
466 struct v9fs_fid *dfid, *vfid, *ffid;
467 struct inode *inode; 394 struct inode *inode;
468 struct v9fs_qid qid;
469 struct file *filp;
470 395
471 inode = NULL; 396 err = 0;
472 vfid = NULL; 397 ofid = NULL;
473 v9ses = v9fs_inode2v9ses(dir); 398 fid = NULL;
399 name = (char *) dentry->d_name.name;
474 dfid = v9fs_fid_clone(dentry->d_parent); 400 dfid = v9fs_fid_clone(dentry->d_parent);
475 if(IS_ERR(dfid)) { 401 if(IS_ERR(dfid)) {
476 err = PTR_ERR(dfid); 402 err = PTR_ERR(dfid);
403 dfid = NULL;
477 goto error; 404 goto error;
478 } 405 }
479 406
480 perm = unixmode2p9mode(v9ses, mode); 407 /* clone a fid to use for creation */
481 if (nd && nd->flags & LOOKUP_OPEN) 408 ofid = p9_client_walk(dfid, 0, NULL, 1);
482 flags = nd->intent.open.flags - 1; 409 if (IS_ERR(ofid)) {
483 else 410 err = PTR_ERR(ofid);
484 flags = O_RDWR; 411 ofid = NULL;
485 412 goto error;
486 err = v9fs_create(v9ses, dfid->fid, (char *) dentry->d_name.name, 413 }
487 perm, v9fs_uflags2omode(flags), NULL, &fid, &qid, &iounit);
488 414
489 if (err) 415 err = p9_client_fcreate(ofid, name, perm, mode, extension);
490 goto clunk_dfid; 416 if (err < 0)
417 goto error;
491 418
492 vfid = v9fs_clone_walk(v9ses, dfid->fid, dentry); 419 /* now walk from the parent so we can get unopened fid */
493 v9fs_fid_clunk(v9ses, dfid); 420 fid = p9_client_walk(dfid, 1, &name, 0);
494 if (IS_ERR(vfid)) { 421 if (IS_ERR(fid)) {
495 err = PTR_ERR(vfid); 422 err = PTR_ERR(fid);
496 vfid = NULL; 423 fid = NULL;
497 goto error; 424 goto error;
498 } 425 } else
426 dfid = NULL;
499 427
500 inode = v9fs_inode_from_fid(v9ses, vfid->fid, dir->i_sb); 428 /* instantiate inode and assign the unopened fid to the dentry */
429 inode = v9fs_inode_from_fid(v9ses, fid, dir->i_sb);
501 if (IS_ERR(inode)) { 430 if (IS_ERR(inode)) {
502 err = PTR_ERR(inode); 431 err = PTR_ERR(inode);
503 inode = NULL;
504 goto error; 432 goto error;
505 } 433 }
506 434
@@ -508,35 +436,78 @@ v9fs_vfs_create(struct inode *dir, struct dentry *dentry, int mode,
508 dentry->d_op = &v9fs_cached_dentry_operations; 436 dentry->d_op = &v9fs_cached_dentry_operations;
509 else 437 else
510 dentry->d_op = &v9fs_dentry_operations; 438 dentry->d_op = &v9fs_dentry_operations;
439
511 d_instantiate(dentry, inode); 440 d_instantiate(dentry, inode);
441 v9fs_fid_add(dentry, fid);
442 return ofid;
512 443
513 if (nd && nd->flags & LOOKUP_OPEN) { 444error:
514 ffid = v9fs_fid_create(v9ses, fid); 445 if (dfid)
515 if (!ffid) 446 p9_client_clunk(dfid);
516 return -ENOMEM; 447
448 if (ofid)
449 p9_client_clunk(ofid);
450
451 if (fid)
452 p9_client_clunk(fid);
453
454 return ERR_PTR(err);
455}
456
457/**
458 * v9fs_vfs_create - VFS hook to create files
459 * @inode: directory inode that is being created
460 * @dentry: dentry that is being deleted
461 * @mode: create permissions
462 * @nd: path information
463 *
464 */
517 465
466static int
467v9fs_vfs_create(struct inode *dir, struct dentry *dentry, int mode,
468 struct nameidata *nd)
469{
470 int err;
471 u32 perm;
472 int flags;
473 struct v9fs_session_info *v9ses;
474 struct p9_fid *fid;
475 struct file *filp;
476
477 err = 0;
478 fid = NULL;
479 v9ses = v9fs_inode2v9ses(dir);
480 perm = unixmode2p9mode(v9ses, mode);
481 if (nd && nd->flags & LOOKUP_OPEN)
482 flags = nd->intent.open.flags - 1;
483 else
484 flags = O_RDWR;
485
486 fid = v9fs_create(v9ses, dir, dentry, NULL, perm,
487 v9fs_uflags2omode(flags));
488 if (IS_ERR(fid)) {
489 err = PTR_ERR(fid);
490 fid = NULL;
491 goto error;
492 }
493
494 /* if we are opening a file, assign the open fid to the file */
495 if (nd && nd->flags & LOOKUP_OPEN) {
518 filp = lookup_instantiate_filp(nd, dentry, v9fs_open_created); 496 filp = lookup_instantiate_filp(nd, dentry, v9fs_open_created);
519 if (IS_ERR(filp)) { 497 if (IS_ERR(filp)) {
520 v9fs_fid_destroy(ffid); 498 err = PTR_ERR(filp);
521 return PTR_ERR(filp); 499 goto error;
522 } 500 }
523 501
524 ffid->rdir_pos = 0; 502 filp->private_data = fid;
525 ffid->rdir_fcall = NULL; 503 } else
526 ffid->fidopen = 1; 504 p9_client_clunk(fid);
527 ffid->iounit = iounit;
528 ffid->filp = filp;
529 filp->private_data = ffid;
530 }
531 505
532 return 0; 506 return 0;
533 507
534clunk_dfid:
535 v9fs_fid_clunk(v9ses, dfid);
536
537error: 508error:
538 if (vfid) 509 if (fid)
539 v9fs_fid_destroy(vfid); 510 p9_client_clunk(fid);
540 511
541 return err; 512 return err;
542} 513}
@@ -552,57 +523,23 @@ error:
552static int v9fs_vfs_mkdir(struct inode *dir, struct dentry *dentry, int mode) 523static int v9fs_vfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
553{ 524{
554 int err; 525 int err;
555 u32 fid, perm; 526 u32 perm;
556 struct v9fs_session_info *v9ses; 527 struct v9fs_session_info *v9ses;
557 struct v9fs_fid *dfid, *vfid; 528 struct p9_fid *fid;
558 struct inode *inode;
559 529
560 inode = NULL; 530 P9_DPRINTK(P9_DEBUG_VFS, "name %s\n", dentry->d_name.name);
561 vfid = NULL; 531 err = 0;
562 v9ses = v9fs_inode2v9ses(dir); 532 v9ses = v9fs_inode2v9ses(dir);
563 dfid = v9fs_fid_clone(dentry->d_parent);
564 if(IS_ERR(dfid)) {
565 err = PTR_ERR(dfid);
566 goto error;
567 }
568
569 perm = unixmode2p9mode(v9ses, mode | S_IFDIR); 533 perm = unixmode2p9mode(v9ses, mode | S_IFDIR);
570 534 fid = v9fs_create(v9ses, dir, dentry, NULL, perm, P9_OREAD);
571 err = v9fs_create(v9ses, dfid->fid, (char *) dentry->d_name.name, 535 if (IS_ERR(fid)) {
572 perm, V9FS_OREAD, NULL, &fid, NULL, NULL); 536 err = PTR_ERR(fid);
573 537 fid = NULL;
574 if (err) {
575 dprintk(DEBUG_ERROR, "create error %d\n", err);
576 goto clean_up_dfid;
577 } 538 }
578 539
579 vfid = v9fs_clone_walk(v9ses, dfid->fid, dentry); 540 if (fid)
580 if (IS_ERR(vfid)) { 541 p9_client_clunk(fid);
581 err = PTR_ERR(vfid);
582 vfid = NULL;
583 goto clean_up_dfid;
584 }
585 542
586 v9fs_fid_clunk(v9ses, dfid);
587 inode = v9fs_inode_from_fid(v9ses, vfid->fid, dir->i_sb);
588 if (IS_ERR(inode)) {
589 err = PTR_ERR(inode);
590 inode = NULL;
591 v9fs_fid_destroy(vfid);
592 goto error;
593 }
594
595 if(v9ses->cache)
596 dentry->d_op = &v9fs_cached_dentry_operations;
597 else
598 dentry->d_op = &v9fs_dentry_operations;
599 d_instantiate(dentry, inode);
600 return 0;
601
602clean_up_dfid:
603 v9fs_fid_clunk(v9ses, dfid);
604
605error:
606 return err; 543 return err;
607} 544}
608 545
@@ -619,104 +556,54 @@ static struct dentry *v9fs_vfs_lookup(struct inode *dir, struct dentry *dentry,
619{ 556{
620 struct super_block *sb; 557 struct super_block *sb;
621 struct v9fs_session_info *v9ses; 558 struct v9fs_session_info *v9ses;
622 struct v9fs_fid *dirfid; 559 struct p9_fid *dfid, *fid;
623 struct v9fs_fid *fid;
624 struct inode *inode; 560 struct inode *inode;
625 struct v9fs_fcall *fcall = NULL; 561 char *name;
626 int dirfidnum = -1;
627 int newfid = -1;
628 int result = 0; 562 int result = 0;
629 563
630 dprintk(DEBUG_VFS, "dir: %p dentry: (%s) %p nameidata: %p\n", 564 P9_DPRINTK(P9_DEBUG_VFS, "dir: %p dentry: (%s) %p nameidata: %p\n",
631 dir, dentry->d_name.name, dentry, nameidata); 565 dir, dentry->d_name.name, dentry, nameidata);
632 566
633 sb = dir->i_sb; 567 sb = dir->i_sb;
634 v9ses = v9fs_inode2v9ses(dir); 568 v9ses = v9fs_inode2v9ses(dir);
635 dirfid = v9fs_fid_lookup(dentry->d_parent); 569 dfid = v9fs_fid_lookup(dentry->d_parent);
636 570 if (IS_ERR(dfid))
637 if(IS_ERR(dirfid)) 571 return ERR_PTR(PTR_ERR(dfid));
638 return ERR_PTR(PTR_ERR(dirfid)); 572
639 573 name = (char *) dentry->d_name.name;
640 dirfidnum = dirfid->fid; 574 fid = p9_client_walk(dfid, 1, &name, 1);
641 575 if (IS_ERR(fid)) {
642 newfid = v9fs_get_idpool(&v9ses->fidpool); 576 result = PTR_ERR(fid);
643 if (newfid < 0) {
644 eprintk(KERN_WARNING, "newfid fails!\n");
645 result = -ENOSPC;
646 goto Release_Dirfid;
647 }
648
649 result = v9fs_t_walk(v9ses, dirfidnum, newfid,
650 (char *)dentry->d_name.name, &fcall);
651
652 up(&dirfid->lock);
653
654 if (result < 0) {
655 if (fcall && fcall->id == RWALK)
656 v9fs_t_clunk(v9ses, newfid);
657 else
658 v9fs_put_idpool(newfid, &v9ses->fidpool);
659
660 if (result == -ENOENT) { 577 if (result == -ENOENT) {
661 d_add(dentry, NULL); 578 d_add(dentry, NULL);
662 dprintk(DEBUG_VFS,
663 "Return negative dentry %p count %d\n",
664 dentry, atomic_read(&dentry->d_count));
665 kfree(fcall);
666 return NULL; 579 return NULL;
667 } 580 }
668 dprintk(DEBUG_ERROR, "walk error:%d\n", result);
669 goto FreeFcall;
670 }
671 kfree(fcall);
672
673 result = v9fs_t_stat(v9ses, newfid, &fcall);
674 if (result < 0) {
675 dprintk(DEBUG_ERROR, "stat error\n");
676 goto FreeFcall;
677 }
678
679 inode = v9fs_get_inode(sb, p9mode2unixmode(v9ses,
680 fcall->params.rstat.stat.mode));
681 581
682 if (IS_ERR(inode) && (PTR_ERR(inode) == -ENOSPC)) { 582 return ERR_PTR(result);
683 eprintk(KERN_WARNING, "inode alloc failes, returns %ld\n",
684 PTR_ERR(inode));
685
686 result = -ENOSPC;
687 goto FreeFcall;
688 } 583 }
689 584
690 inode->i_ino = v9fs_qid2ino(&fcall->params.rstat.stat.qid); 585 inode = v9fs_inode_from_fid(v9ses, fid, dir->i_sb);
691 586 if (IS_ERR(inode)) {
692 fid = v9fs_fid_create(v9ses, newfid); 587 result = PTR_ERR(inode);
693 if (fid == NULL) { 588 inode = NULL;
694 dprintk(DEBUG_ERROR, "couldn't insert\n"); 589 goto error;
695 result = -ENOMEM;
696 goto FreeFcall;
697 } 590 }
698 591
699 result = v9fs_fid_insert(fid, dentry); 592 result = v9fs_fid_add(dentry, fid);
700 if (result < 0) 593 if (result < 0)
701 goto FreeFcall; 594 goto error;
702 595
703 fid->qid = fcall->params.rstat.stat.qid;
704 v9fs_stat2inode(&fcall->params.rstat.stat, inode, inode->i_sb);
705 if((fid->qid.version)&&(v9ses->cache)) 596 if((fid->qid.version)&&(v9ses->cache))
706 dentry->d_op = &v9fs_cached_dentry_operations; 597 dentry->d_op = &v9fs_cached_dentry_operations;
707 else 598 else
708 dentry->d_op = &v9fs_dentry_operations; 599 dentry->d_op = &v9fs_dentry_operations;
709 600
710 d_add(dentry, inode); 601 d_add(dentry, inode);
711 kfree(fcall);
712
713 return NULL; 602 return NULL;
714 603
715Release_Dirfid: 604error:
716 up(&dirfid->lock); 605 if (fid)
717 606 p9_client_clunk(fid);
718FreeFcall:
719 kfree(fcall);
720 607
721 return ERR_PTR(result); 608 return ERR_PTR(result);
722} 609}
@@ -758,73 +645,54 @@ static int
758v9fs_vfs_rename(struct inode *old_dir, struct dentry *old_dentry, 645v9fs_vfs_rename(struct inode *old_dir, struct dentry *old_dentry,
759 struct inode *new_dir, struct dentry *new_dentry) 646 struct inode *new_dir, struct dentry *new_dentry)
760{ 647{
761 struct inode *old_inode = old_dentry->d_inode; 648 struct inode *old_inode;
762 struct v9fs_session_info *v9ses = v9fs_inode2v9ses(old_inode); 649 struct v9fs_session_info *v9ses;
763 struct v9fs_fid *oldfid = v9fs_fid_lookup(old_dentry); 650 struct p9_fid *oldfid;
764 struct v9fs_fid *olddirfid; 651 struct p9_fid *olddirfid;
765 struct v9fs_fid *newdirfid; 652 struct p9_fid *newdirfid;
766 struct v9fs_wstat wstat; 653 struct p9_wstat wstat;
767 struct v9fs_fcall *fcall = NULL; 654 int retval;
768 int fid = -1;
769 int olddirfidnum = -1;
770 int newdirfidnum = -1;
771 int retval = 0;
772
773 dprintk(DEBUG_VFS, "\n");
774 655
656 P9_DPRINTK(P9_DEBUG_VFS, "\n");
657 retval = 0;
658 old_inode = old_dentry->d_inode;
659 v9ses = v9fs_inode2v9ses(old_inode);
660 oldfid = v9fs_fid_lookup(old_dentry);
775 if(IS_ERR(oldfid)) 661 if(IS_ERR(oldfid))
776 return PTR_ERR(oldfid); 662 return PTR_ERR(oldfid);
777 663
778 olddirfid = v9fs_fid_clone(old_dentry->d_parent); 664 olddirfid = v9fs_fid_clone(old_dentry->d_parent);
779 if(IS_ERR(olddirfid)) { 665 if(IS_ERR(olddirfid)) {
780 retval = PTR_ERR(olddirfid); 666 retval = PTR_ERR(olddirfid);
781 goto Release_lock; 667 goto done;
782 } 668 }
783 669
784 newdirfid = v9fs_fid_clone(new_dentry->d_parent); 670 newdirfid = v9fs_fid_clone(new_dentry->d_parent);
785 if(IS_ERR(newdirfid)) { 671 if(IS_ERR(newdirfid)) {
786 retval = PTR_ERR(newdirfid); 672 retval = PTR_ERR(newdirfid);
787 goto Clunk_olddir; 673 goto clunk_olddir;
788 } 674 }
789 675
790 /* 9P can only handle file rename in the same directory */ 676 /* 9P can only handle file rename in the same directory */
791 if (memcmp(&olddirfid->qid, &newdirfid->qid, sizeof(newdirfid->qid))) { 677 if (memcmp(&olddirfid->qid, &newdirfid->qid, sizeof(newdirfid->qid))) {
792 dprintk(DEBUG_ERROR, "old dir and new dir are different\n"); 678 P9_DPRINTK(P9_DEBUG_ERROR,
679 "old dir and new dir are different\n");
793 retval = -EXDEV; 680 retval = -EXDEV;
794 goto Clunk_newdir; 681 goto clunk_newdir;
795 }
796
797 fid = oldfid->fid;
798 olddirfidnum = olddirfid->fid;
799 newdirfidnum = newdirfid->fid;
800
801 if (fid < 0) {
802 dprintk(DEBUG_ERROR, "no fid for old file #%lu\n",
803 old_inode->i_ino);
804 retval = -EBADF;
805 goto Clunk_newdir;
806 } 682 }
807 683
808 v9fs_blank_wstat(&wstat); 684 v9fs_blank_wstat(&wstat);
809 wstat.muid = v9ses->name; 685 wstat.muid = v9ses->name;
810 wstat.name = (char *) new_dentry->d_name.name; 686 wstat.name = (char *) new_dentry->d_name.name;
687 retval = p9_client_wstat(oldfid, &wstat);
811 688
812 retval = v9fs_t_wstat(v9ses, fid, &wstat, &fcall); 689clunk_newdir:
690 p9_client_clunk(olddirfid);
813 691
814 if (retval < 0) 692clunk_olddir:
815 PRINT_FCALL_ERROR("wstat error", fcall); 693 p9_client_clunk(newdirfid);
816
817 kfree(fcall);
818
819Clunk_newdir:
820 v9fs_fid_clunk(v9ses, newdirfid);
821
822Clunk_olddir:
823 v9fs_fid_clunk(v9ses, olddirfid);
824
825Release_lock:
826 up(&oldfid->lock);
827 694
695done:
828 return retval; 696 return retval;
829} 697}
830 698
@@ -840,28 +708,27 @@ static int
840v9fs_vfs_getattr(struct vfsmount *mnt, struct dentry *dentry, 708v9fs_vfs_getattr(struct vfsmount *mnt, struct dentry *dentry,
841 struct kstat *stat) 709 struct kstat *stat)
842{ 710{
843 struct v9fs_fcall *fcall = NULL; 711 int err;
844 struct v9fs_session_info *v9ses = v9fs_inode2v9ses(dentry->d_inode); 712 struct v9fs_session_info *v9ses;
845 struct v9fs_fid *fid = v9fs_fid_clone(dentry); 713 struct p9_fid *fid;
846 int err = -EPERM; 714 struct p9_stat *st;
847 715
848 dprintk(DEBUG_VFS, "dentry: %p\n", dentry); 716 P9_DPRINTK(P9_DEBUG_VFS, "dentry: %p\n", dentry);
849 if(IS_ERR(fid)) 717 err = -EPERM;
718 v9ses = v9fs_inode2v9ses(dentry->d_inode);
719 fid = v9fs_fid_lookup(dentry);
720 if (IS_ERR(fid))
850 return PTR_ERR(fid); 721 return PTR_ERR(fid);
851 722
852 err = v9fs_t_stat(v9ses, fid->fid, &fcall); 723 st = p9_client_stat(fid);
724 if (IS_ERR(st))
725 return PTR_ERR(st);
853 726
854 if (err < 0) 727 v9fs_stat2inode(st, dentry->d_inode, dentry->d_inode->i_sb);
855 dprintk(DEBUG_ERROR, "stat error\n");
856 else {
857 v9fs_stat2inode(&fcall->params.rstat.stat, dentry->d_inode,
858 dentry->d_inode->i_sb);
859 generic_fillattr(dentry->d_inode, stat); 728 generic_fillattr(dentry->d_inode, stat);
860 }
861 729
862 kfree(fcall); 730 kfree(st);
863 v9fs_fid_clunk(v9ses, fid); 731 return 0;
864 return err;
865} 732}
866 733
867/** 734/**
@@ -873,13 +740,15 @@ v9fs_vfs_getattr(struct vfsmount *mnt, struct dentry *dentry,
873 740
874static int v9fs_vfs_setattr(struct dentry *dentry, struct iattr *iattr) 741static int v9fs_vfs_setattr(struct dentry *dentry, struct iattr *iattr)
875{ 742{
876 struct v9fs_session_info *v9ses = v9fs_inode2v9ses(dentry->d_inode); 743 int retval;
877 struct v9fs_fid *fid = v9fs_fid_clone(dentry); 744 struct v9fs_session_info *v9ses;
878 struct v9fs_fcall *fcall = NULL; 745 struct p9_fid *fid;
879 struct v9fs_wstat wstat; 746 struct p9_wstat wstat;
880 int res = -EPERM;
881 747
882 dprintk(DEBUG_VFS, "\n"); 748 P9_DPRINTK(P9_DEBUG_VFS, "\n");
749 retval = -EPERM;
750 v9ses = v9fs_inode2v9ses(dentry->d_inode);
751 fid = v9fs_fid_lookup(dentry);
883 if(IS_ERR(fid)) 752 if(IS_ERR(fid))
884 return PTR_ERR(fid); 753 return PTR_ERR(fid);
885 754
@@ -904,17 +773,11 @@ static int v9fs_vfs_setattr(struct dentry *dentry, struct iattr *iattr)
904 wstat.n_gid = iattr->ia_gid; 773 wstat.n_gid = iattr->ia_gid;
905 } 774 }
906 775
907 res = v9fs_t_wstat(v9ses, fid->fid, &wstat, &fcall); 776 retval = p9_client_wstat(fid, &wstat);
777 if (retval >= 0)
778 retval = inode_setattr(dentry->d_inode, iattr);
908 779
909 if (res < 0) 780 return retval;
910 PRINT_FCALL_ERROR("wstat error", fcall);
911
912 kfree(fcall);
913 if (res >= 0)
914 res = inode_setattr(dentry->d_inode, iattr);
915
916 v9fs_fid_clunk(v9ses, fid);
917 return res;
918} 781}
919 782
920/** 783/**
@@ -926,7 +789,7 @@ static int v9fs_vfs_setattr(struct dentry *dentry, struct iattr *iattr)
926 */ 789 */
927 790
928void 791void
929v9fs_stat2inode(struct v9fs_stat *stat, struct inode *inode, 792v9fs_stat2inode(struct p9_stat *stat, struct inode *inode,
930 struct super_block *sb) 793 struct super_block *sb)
931{ 794{
932 int n; 795 int n;
@@ -967,8 +830,9 @@ v9fs_stat2inode(struct v9fs_stat *stat, struct inode *inode,
967 case 'b': 830 case 'b':
968 break; 831 break;
969 default: 832 default:
970 dprintk(DEBUG_ERROR, "Unknown special type %c (%.*s)\n", 833 P9_DPRINTK(P9_DEBUG_ERROR,
971 type, stat->extension.len, stat->extension.str); 834 "Unknown special type %c (%.*s)\n", type,
835 stat->extension.len, stat->extension.str);
972 }; 836 };
973 inode->i_rdev = MKDEV(major, minor); 837 inode->i_rdev = MKDEV(major, minor);
974 } else 838 } else
@@ -976,8 +840,8 @@ v9fs_stat2inode(struct v9fs_stat *stat, struct inode *inode,
976 840
977 inode->i_size = stat->length; 841 inode->i_size = stat->length;
978 842
979 inode->i_blocks = 843 /* not real number of blocks, but 512 byte ones ... */
980 (inode->i_size + sb->s_blocksize - 1) >> sb->s_blocksize_bits; 844 inode->i_blocks = (inode->i_size + 512 - 1) >> 9;
981} 845}
982 846
983/** 847/**
@@ -987,7 +851,7 @@ v9fs_stat2inode(struct v9fs_stat *stat, struct inode *inode,
987 * BUG: potential for inode number collisions? 851 * BUG: potential for inode number collisions?
988 */ 852 */
989 853
990ino_t v9fs_qid2ino(struct v9fs_qid *qid) 854ino_t v9fs_qid2ino(struct p9_qid *qid)
991{ 855{
992 u64 path = qid->path + 2; 856 u64 path = qid->path + 2;
993 ino_t i = 0; 857 ino_t i = 0;
@@ -1010,56 +874,46 @@ ino_t v9fs_qid2ino(struct v9fs_qid *qid)
1010 874
1011static int v9fs_readlink(struct dentry *dentry, char *buffer, int buflen) 875static int v9fs_readlink(struct dentry *dentry, char *buffer, int buflen)
1012{ 876{
1013 int retval = -EPERM; 877 int retval;
1014 878
1015 struct v9fs_fcall *fcall = NULL; 879 struct v9fs_session_info *v9ses;
1016 struct v9fs_session_info *v9ses = v9fs_inode2v9ses(dentry->d_inode); 880 struct p9_fid *fid;
1017 struct v9fs_fid *fid = v9fs_fid_clone(dentry); 881 struct p9_stat *st;
1018 882
883 P9_DPRINTK(P9_DEBUG_VFS, " %s\n", dentry->d_name.name);
884 retval = -EPERM;
885 v9ses = v9fs_inode2v9ses(dentry->d_inode);
886 fid = v9fs_fid_lookup(dentry);
1019 if(IS_ERR(fid)) 887 if(IS_ERR(fid))
1020 return PTR_ERR(fid); 888 return PTR_ERR(fid);
1021 889
1022 if (!v9ses->extended) { 890 if (!v9ses->extended)
1023 retval = -EBADF; 891 return -EBADF;
1024 dprintk(DEBUG_ERROR, "not extended\n");
1025 goto ClunkFid;
1026 }
1027
1028 dprintk(DEBUG_VFS, " %s\n", dentry->d_name.name);
1029 retval = v9fs_t_stat(v9ses, fid->fid, &fcall);
1030
1031 if (retval < 0) {
1032 dprintk(DEBUG_ERROR, "stat error\n");
1033 goto FreeFcall;
1034 }
1035 892
1036 if (!fcall) { 893 st = p9_client_stat(fid);
1037 retval = -EIO; 894 if (IS_ERR(st))
1038 goto ClunkFid; 895 return PTR_ERR(st);
1039 }
1040 896
1041 if (!(fcall->params.rstat.stat.mode & V9FS_DMSYMLINK)) { 897 if (!(st->mode & P9_DMSYMLINK)) {
1042 retval = -EINVAL; 898 retval = -EINVAL;
1043 goto FreeFcall; 899 goto done;
1044 } 900 }
1045 901
1046 /* copy extension buffer into buffer */ 902 /* copy extension buffer into buffer */
1047 if (fcall->params.rstat.stat.extension.len < buflen) 903 if (st->extension.len < buflen)
1048 buflen = fcall->params.rstat.stat.extension.len + 1; 904 buflen = st->extension.len + 1;
1049 905
1050 memmove(buffer, fcall->params.rstat.stat.extension.str, buflen - 1); 906 memmove(buffer, st->extension.str, buflen - 1);
1051 buffer[buflen-1] = 0; 907 buffer[buflen-1] = 0;
1052 908
1053 dprintk(DEBUG_ERROR, "%s -> %.*s (%s)\n", dentry->d_name.name, fcall->params.rstat.stat.extension.len, 909 P9_DPRINTK(P9_DEBUG_VFS,
1054 fcall->params.rstat.stat.extension.str, buffer); 910 "%s -> %.*s (%s)\n", dentry->d_name.name, st->extension.len,
1055 retval = buflen; 911 st->extension.str, buffer);
1056 912
1057FreeFcall: 913 retval = buflen;
1058 kfree(fcall);
1059
1060ClunkFid:
1061 v9fs_fid_clunk(v9ses, fid);
1062 914
915done:
916 kfree(st);
1063 return retval; 917 return retval;
1064} 918}
1065 919
@@ -1084,14 +938,14 @@ static int v9fs_vfs_readlink(struct dentry *dentry, char __user * buffer,
1084 if (buflen > PATH_MAX) 938 if (buflen > PATH_MAX)
1085 buflen = PATH_MAX; 939 buflen = PATH_MAX;
1086 940
1087 dprintk(DEBUG_VFS, " dentry: %s (%p)\n", dentry->d_iname, dentry); 941 P9_DPRINTK(P9_DEBUG_VFS, " dentry: %s (%p)\n", dentry->d_iname, dentry);
1088 942
1089 retval = v9fs_readlink(dentry, link, buflen); 943 retval = v9fs_readlink(dentry, link, buflen);
1090 944
1091 if (retval > 0) { 945 if (retval > 0) {
1092 if ((ret = copy_to_user(buffer, link, retval)) != 0) { 946 if ((ret = copy_to_user(buffer, link, retval)) != 0) {
1093 dprintk(DEBUG_ERROR, "problem copying to user: %d\n", 947 P9_DPRINTK(P9_DEBUG_ERROR,
1094 ret); 948 "problem copying to user: %d\n", ret);
1095 retval = ret; 949 retval = ret;
1096 } 950 }
1097 } 951 }
@@ -1112,7 +966,7 @@ static void *v9fs_vfs_follow_link(struct dentry *dentry, struct nameidata *nd)
1112 int len = 0; 966 int len = 0;
1113 char *link = __getname(); 967 char *link = __getname();
1114 968
1115 dprintk(DEBUG_VFS, "%s n", dentry->d_name.name); 969 P9_DPRINTK(P9_DEBUG_VFS, "%s n", dentry->d_name.name);
1116 970
1117 if (!link) 971 if (!link)
1118 link = ERR_PTR(-ENOMEM); 972 link = ERR_PTR(-ENOMEM);
@@ -1141,7 +995,7 @@ static void v9fs_vfs_put_link(struct dentry *dentry, struct nameidata *nd, void
1141{ 995{
1142 char *s = nd_get_link(nd); 996 char *s = nd_get_link(nd);
1143 997
1144 dprintk(DEBUG_VFS, " %s %s\n", dentry->d_name.name, s); 998 P9_DPRINTK(P9_DEBUG_VFS, " %s %s\n", dentry->d_name.name, s);
1145 if (!IS_ERR(s)) 999 if (!IS_ERR(s))
1146 __putname(s); 1000 __putname(s);
1147} 1001}
@@ -1149,66 +1003,24 @@ static void v9fs_vfs_put_link(struct dentry *dentry, struct nameidata *nd, void
1149static int v9fs_vfs_mkspecial(struct inode *dir, struct dentry *dentry, 1003static int v9fs_vfs_mkspecial(struct inode *dir, struct dentry *dentry,
1150 int mode, const char *extension) 1004 int mode, const char *extension)
1151{ 1005{
1152 int err; 1006 u32 perm;
1153 u32 fid, perm;
1154 struct v9fs_session_info *v9ses; 1007 struct v9fs_session_info *v9ses;
1155 struct v9fs_fid *dfid, *vfid = NULL; 1008 struct p9_fid *fid;
1156 struct inode *inode = NULL;
1157 1009
1158 v9ses = v9fs_inode2v9ses(dir); 1010 v9ses = v9fs_inode2v9ses(dir);
1159 if (!v9ses->extended) { 1011 if (!v9ses->extended) {
1160 dprintk(DEBUG_ERROR, "not extended\n"); 1012 P9_DPRINTK(P9_DEBUG_ERROR, "not extended\n");
1161 return -EPERM; 1013 return -EPERM;
1162 } 1014 }
1163 1015
1164 dfid = v9fs_fid_clone(dentry->d_parent);
1165 if(IS_ERR(dfid)) {
1166 err = PTR_ERR(dfid);
1167 goto error;
1168 }
1169
1170 perm = unixmode2p9mode(v9ses, mode); 1016 perm = unixmode2p9mode(v9ses, mode);
1017 fid = v9fs_create(v9ses, dir, dentry, (char *) extension, perm,
1018 P9_OREAD);
1019 if (IS_ERR(fid))
1020 return PTR_ERR(fid);
1171 1021
1172 err = v9fs_create(v9ses, dfid->fid, (char *) dentry->d_name.name, 1022 p9_client_clunk(fid);
1173 perm, V9FS_OREAD, (char *) extension, &fid, NULL, NULL);
1174
1175 if (err)
1176 goto clunk_dfid;
1177
1178 err = v9fs_t_clunk(v9ses, fid);
1179 if (err)
1180 goto clunk_dfid;
1181
1182 vfid = v9fs_clone_walk(v9ses, dfid->fid, dentry);
1183 if (IS_ERR(vfid)) {
1184 err = PTR_ERR(vfid);
1185 vfid = NULL;
1186 goto clunk_dfid;
1187 }
1188
1189 inode = v9fs_inode_from_fid(v9ses, vfid->fid, dir->i_sb);
1190 if (IS_ERR(inode)) {
1191 err = PTR_ERR(inode);
1192 inode = NULL;
1193 goto free_vfid;
1194 }
1195
1196 if(v9ses->cache)
1197 dentry->d_op = &v9fs_cached_dentry_operations;
1198 else
1199 dentry->d_op = &v9fs_dentry_operations;
1200 d_instantiate(dentry, inode);
1201 return 0; 1023 return 0;
1202
1203free_vfid:
1204 v9fs_fid_destroy(vfid);
1205
1206clunk_dfid:
1207 v9fs_fid_clunk(v9ses, dfid);
1208
1209error:
1210 return err;
1211
1212} 1024}
1213 1025
1214/** 1026/**
@@ -1224,8 +1036,8 @@ error:
1224static int 1036static int
1225v9fs_vfs_symlink(struct inode *dir, struct dentry *dentry, const char *symname) 1037v9fs_vfs_symlink(struct inode *dir, struct dentry *dentry, const char *symname)
1226{ 1038{
1227 dprintk(DEBUG_VFS, " %lu,%s,%s\n", dir->i_ino, dentry->d_name.name, 1039 P9_DPRINTK(P9_DEBUG_VFS, " %lu,%s,%s\n", dir->i_ino,
1228 symname); 1040 dentry->d_name.name, symname);
1229 1041
1230 return v9fs_vfs_mkspecial(dir, dentry, S_IFLNK, symname); 1042 return v9fs_vfs_mkspecial(dir, dentry, S_IFLNK, symname);
1231} 1043}
@@ -1247,11 +1059,11 @@ v9fs_vfs_link(struct dentry *old_dentry, struct inode *dir,
1247 struct dentry *dentry) 1059 struct dentry *dentry)
1248{ 1060{
1249 int retval; 1061 int retval;
1250 struct v9fs_session_info *v9ses = v9fs_inode2v9ses(dir); 1062 struct p9_fid *oldfid;
1251 struct v9fs_fid *oldfid;
1252 char *name; 1063 char *name;
1253 1064
1254 dprintk(DEBUG_VFS, " %lu,%s,%s\n", dir->i_ino, dentry->d_name.name, 1065 P9_DPRINTK(P9_DEBUG_VFS,
1066 " %lu,%s,%s\n", dir->i_ino, dentry->d_name.name,
1255 old_dentry->d_name.name); 1067 old_dentry->d_name.name);
1256 1068
1257 oldfid = v9fs_fid_clone(old_dentry); 1069 oldfid = v9fs_fid_clone(old_dentry);
@@ -1265,11 +1077,11 @@ v9fs_vfs_link(struct dentry *old_dentry, struct inode *dir,
1265 } 1077 }
1266 1078
1267 sprintf(name, "%d\n", oldfid->fid); 1079 sprintf(name, "%d\n", oldfid->fid);
1268 retval = v9fs_vfs_mkspecial(dir, dentry, V9FS_DMLINK, name); 1080 retval = v9fs_vfs_mkspecial(dir, dentry, P9_DMLINK, name);
1269 __putname(name); 1081 __putname(name);
1270 1082
1271clunk_fid: 1083clunk_fid:
1272 v9fs_fid_clunk(v9ses, oldfid); 1084 p9_client_clunk(oldfid);
1273 return retval; 1085 return retval;
1274} 1086}
1275 1087
@@ -1288,7 +1100,8 @@ v9fs_vfs_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t rdev)
1288 int retval; 1100 int retval;
1289 char *name; 1101 char *name;
1290 1102
1291 dprintk(DEBUG_VFS, " %lu,%s mode: %x MAJOR: %u MINOR: %u\n", dir->i_ino, 1103 P9_DPRINTK(P9_DEBUG_VFS,
1104 " %lu,%s mode: %x MAJOR: %u MINOR: %u\n", dir->i_ino,
1292 dentry->d_name.name, mode, MAJOR(rdev), MINOR(rdev)); 1105 dentry->d_name.name, mode, MAJOR(rdev), MINOR(rdev));
1293 1106
1294 if (!new_valid_dev(rdev)) 1107 if (!new_valid_dev(rdev))
generated by cgit v1.2.2 (git 2.25.0) at 2024-09-20 12:34:15 -0400