108 	struct v9fs_session_info *v9ses = root->d_sb->s_fs_info;  in v9fs_show_options()  local
110 	if (v9ses->debug)  in v9fs_show_options()
111 		seq_printf(m, ",debug=%x", v9ses->debug);  in v9fs_show_options()
112 	if (!uid_eq(v9ses->dfltuid, V9FS_DEFUID))  in v9fs_show_options()
114 			   from_kuid_munged(&init_user_ns, v9ses->dfltuid));  in v9fs_show_options()
115 	if (!gid_eq(v9ses->dfltgid, V9FS_DEFGID))  in v9fs_show_options()
117 			   from_kgid_munged(&init_user_ns, v9ses->dfltgid));  in v9fs_show_options()
118 	if (v9ses->afid != ~0)  in v9fs_show_options()
119 		seq_printf(m, ",afid=%u", v9ses->afid);  in v9fs_show_options()
120 	if (strcmp(v9ses->uname, V9FS_DEFUSER) != 0)  in v9fs_show_options()
121 		seq_printf(m, ",uname=%s", v9ses->uname);  in v9fs_show_options()
122 	if (strcmp(v9ses->aname, V9FS_DEFANAME) != 0)  in v9fs_show_options()
123 		seq_printf(m, ",aname=%s", v9ses->aname);  in v9fs_show_options()
124 	if (v9ses->nodev)  in v9fs_show_options()
126 	if (v9ses->cache)  in v9fs_show_options()
127 		seq_printf(m, ",%s", v9fs_cache_modes[v9ses->cache]);  in v9fs_show_options()
129 	if (v9ses->cachetag && v9ses->cache == CACHE_FSCACHE)  in v9fs_show_options()
130 		seq_printf(m, ",cachetag=%s", v9ses->cachetag);  in v9fs_show_options()
133 	switch (v9ses->flags & V9FS_ACCESS_MASK) {  in v9fs_show_options()
145 			   from_kuid_munged(&init_user_ns, v9ses->uid));  in v9fs_show_options()
149 	if (v9ses->flags & V9FS_POSIX_ACL)  in v9fs_show_options()
152 	return p9_show_client_options(m, v9ses->clnt);  in v9fs_show_options()
162 static int v9fs_parse_options(struct v9fs_session_info *v9ses, char *opts)  in v9fs_parse_options()  argument
172 	v9ses->afid = ~0;  in v9fs_parse_options()
173 	v9ses->debug = 0;  in v9fs_parse_options()
174 	v9ses->cache = CACHE_NONE;  in v9fs_parse_options()
176 	v9ses->cachetag = NULL;  in v9fs_parse_options()
178 	v9ses->session_lock_timeout = P9_LOCK_TIMEOUT;  in v9fs_parse_options()
203 				v9ses->debug = option;  in v9fs_parse_options()
218 			v9ses->dfltuid = make_kuid(current_user_ns(), option);  in v9fs_parse_options()
219 			if (!uid_valid(v9ses->dfltuid)) {  in v9fs_parse_options()
233 			v9ses->dfltgid = make_kgid(current_user_ns(), option);  in v9fs_parse_options()
234 			if (!gid_valid(v9ses->dfltgid)) {  in v9fs_parse_options()
247 				v9ses->afid = option;  in v9fs_parse_options()
251 			kfree(v9ses->uname);  in v9fs_parse_options()
252 			v9ses->uname = match_strdup(&args[0]);  in v9fs_parse_options()
253 			if (!v9ses->uname) {  in v9fs_parse_options()
259 			kfree(v9ses->aname);  in v9fs_parse_options()
260 			v9ses->aname = match_strdup(&args[0]);  in v9fs_parse_options()
261 			if (!v9ses->aname) {  in v9fs_parse_options()
267 			v9ses->nodev = 1;  in v9fs_parse_options()
270 			v9ses->cache = CACHE_LOOSE;  in v9fs_parse_options()
273 			v9ses->cache = CACHE_FSCACHE;  in v9fs_parse_options()
276 			v9ses->cache = CACHE_MMAP;  in v9fs_parse_options()
280 			kfree(v9ses->cachetag);  in v9fs_parse_options()
281 			v9ses->cachetag = match_strdup(&args[0]);  in v9fs_parse_options()
282 			if (!v9ses->cachetag) {  in v9fs_parse_options()
300 				v9ses->cache = r;  in v9fs_parse_options()
314 			v9ses->flags &= ~V9FS_ACCESS_MASK;  in v9fs_parse_options()
316 				v9ses->flags |= V9FS_ACCESS_USER;  in v9fs_parse_options()
318 				v9ses->flags |= V9FS_ACCESS_ANY;  in v9fs_parse_options()
320 				v9ses->flags |= V9FS_ACCESS_CLIENT;  in v9fs_parse_options()
323 				v9ses->flags |= V9FS_ACCESS_SINGLE;  in v9fs_parse_options()
332 				v9ses->uid = make_kuid(current_user_ns(), uid);  in v9fs_parse_options()
333 				if (!uid_valid(v9ses->uid)) {  in v9fs_parse_options()
344 			v9ses->flags |= V9FS_POSIX_ACL;  in v9fs_parse_options()
365 			v9ses->session_lock_timeout = (long)option * HZ;  in v9fs_parse_options()
387 struct p9_fid *v9fs_session_init(struct v9fs_session_info *v9ses,  in v9fs_session_init()  argument
393 	v9ses->uname = kstrdup(V9FS_DEFUSER, GFP_KERNEL);  in v9fs_session_init()
394 	if (!v9ses->uname)  in v9fs_session_init()
397 	v9ses->aname = kstrdup(V9FS_DEFANAME, GFP_KERNEL);  in v9fs_session_init()
398 	if (!v9ses->aname)  in v9fs_session_init()
400 	init_rwsem(&v9ses->rename_sem);  in v9fs_session_init()
402 	v9ses->uid = INVALID_UID;  in v9fs_session_init()
403 	v9ses->dfltuid = V9FS_DEFUID;  in v9fs_session_init()
404 	v9ses->dfltgid = V9FS_DEFGID;  in v9fs_session_init()
406 	v9ses->clnt = p9_client_create(dev_name, data);  in v9fs_session_init()
407 	if (IS_ERR(v9ses->clnt)) {  in v9fs_session_init()
408 		rc = PTR_ERR(v9ses->clnt);  in v9fs_session_init()
413 	v9ses->flags = V9FS_ACCESS_USER;  in v9fs_session_init()
415 	if (p9_is_proto_dotl(v9ses->clnt)) {  in v9fs_session_init()
416 		v9ses->flags = V9FS_ACCESS_CLIENT;  in v9fs_session_init()
417 		v9ses->flags |= V9FS_PROTO_2000L;  in v9fs_session_init()
418 	} else if (p9_is_proto_dotu(v9ses->clnt)) {  in v9fs_session_init()
419 		v9ses->flags |= V9FS_PROTO_2000U;  in v9fs_session_init()
422 	rc = v9fs_parse_options(v9ses, data);  in v9fs_session_init()
426 	v9ses->maxdata = v9ses->clnt->msize - P9_IOHDRSZ;  in v9fs_session_init()
428 	if (!v9fs_proto_dotl(v9ses) &&  in v9fs_session_init()
429 	    ((v9ses->flags & V9FS_ACCESS_MASK) == V9FS_ACCESS_CLIENT)) {  in v9fs_session_init()
434 		v9ses->flags &= ~V9FS_ACCESS_MASK;  in v9fs_session_init()
435 		v9ses->flags |= V9FS_ACCESS_USER;  in v9fs_session_init()
439 	if (!(v9fs_proto_dotu(v9ses) || v9fs_proto_dotl(v9ses)) &&  in v9fs_session_init()
440 		((v9ses->flags&V9FS_ACCESS_MASK) == V9FS_ACCESS_USER)) {  in v9fs_session_init()
442 		v9ses->flags &= ~V9FS_ACCESS_MASK;  in v9fs_session_init()
443 		v9ses->flags |= V9FS_ACCESS_ANY;  in v9fs_session_init()
444 		v9ses->uid = INVALID_UID;  in v9fs_session_init()
446 	if (!v9fs_proto_dotl(v9ses) ||  in v9fs_session_init()
447 		!((v9ses->flags & V9FS_ACCESS_MASK) == V9FS_ACCESS_CLIENT)) {  in v9fs_session_init()
452 		v9ses->flags &= ~V9FS_ACL_MASK;  in v9fs_session_init()
455 	fid = p9_client_attach(v9ses->clnt, NULL, v9ses->uname, INVALID_UID,  in v9fs_session_init()
456 							v9ses->aname);  in v9fs_session_init()
463 	if ((v9ses->flags & V9FS_ACCESS_MASK) == V9FS_ACCESS_SINGLE)  in v9fs_session_init()
464 		fid->uid = v9ses->uid;  in v9fs_session_init()
470 	v9fs_cache_session_get_cookie(v9ses);  in v9fs_session_init()
473 	list_add(&v9ses->slist, &v9fs_sessionlist);  in v9fs_session_init()
480 	kfree(v9ses->cachetag);  in v9fs_session_init()
482 	p9_client_destroy(v9ses->clnt);  in v9fs_session_init()
484 	kfree(v9ses->uname);  in v9fs_session_init()
485 	kfree(v9ses->aname);  in v9fs_session_init()
495 void v9fs_session_close(struct v9fs_session_info *v9ses)  in v9fs_session_close()  argument
497 	if (v9ses->clnt) {  in v9fs_session_close()
498 		p9_client_destroy(v9ses->clnt);  in v9fs_session_close()
499 		v9ses->clnt = NULL;  in v9fs_session_close()
503 	if (v9ses->fscache)  in v9fs_session_close()
504 		v9fs_cache_session_put_cookie(v9ses);  in v9fs_session_close()
505 	kfree(v9ses->cachetag);  in v9fs_session_close()
507 	kfree(v9ses->uname);  in v9fs_session_close()
508 	kfree(v9ses->aname);  in v9fs_session_close()
511 	list_del(&v9ses->slist);  in v9fs_session_close()
522 void v9fs_session_cancel(struct v9fs_session_info *v9ses) {  in v9fs_session_cancel()  argument
523 	p9_debug(P9_DEBUG_ERROR, "cancel session %p\n", v9ses);  in v9fs_session_cancel()
524 	p9_client_disconnect(v9ses->clnt);  in v9fs_session_cancel()
534 void v9fs_session_begin_cancel(struct v9fs_session_info *v9ses)  in v9fs_session_begin_cancel()  argument
536 	p9_debug(P9_DEBUG_ERROR, "begin cancel session %p\n", v9ses);  in v9fs_session_begin_cancel()
537 	p9_client_begin_disconnect(v9ses->clnt);  in v9fs_session_begin_cancel()
556 	struct v9fs_session_info *v9ses;  in caches_show()  local
559 	list_for_each_entry(v9ses, &v9fs_sessionlist, slist) {  in caches_show()
560 		if (v9ses->cachetag) {  in caches_show()
561 			n = snprintf(buf, limit, "%s\n", v9ses->cachetag);  in caches_show()