69 inline int p9_is_proto_dotl(struct p9_client *clnt)  in p9_is_proto_dotl()  argument
71 	return clnt->proto_version == p9_proto_2000L;  in p9_is_proto_dotl()
75 inline int p9_is_proto_dotu(struct p9_client *clnt)  in p9_is_proto_dotu()  argument
77 	return clnt->proto_version == p9_proto_2000u;  in p9_is_proto_dotu()
81 int p9_show_client_options(struct seq_file *m, struct p9_client *clnt)  in p9_show_client_options()  argument
83 	if (clnt->msize != 8192)  in p9_show_client_options()
84 		seq_printf(m, ",msize=%u", clnt->msize);  in p9_show_client_options()
85 	seq_printf(m, ",trans=%s", clnt->trans_mod->name);  in p9_show_client_options()
87 	switch (clnt->proto_version) {  in p9_show_client_options()
99 	if (clnt->trans_mod->show_options)  in p9_show_client_options()
100 		return clnt->trans_mod->show_options(m, clnt);  in p9_show_client_options()
147 static int parse_opts(char *opts, struct p9_client *clnt)  in parse_opts()  argument
156 	clnt->proto_version = p9_proto_2000L;  in parse_opts()
157 	clnt->msize = 8192;  in parse_opts()
184 			clnt->msize = option;  in parse_opts()
195 			v9fs_put_trans(clnt->trans_mod);  in parse_opts()
196 			clnt->trans_mod = v9fs_get_trans_by_name(s);  in parse_opts()
197 			if (clnt->trans_mod == NULL) {  in parse_opts()
205 			clnt->proto_version = p9_proto_legacy;  in parse_opts()
219 				clnt->proto_version = r;  in parse_opts()
229 		v9fs_put_trans(clnt->trans_mod);  in parse_opts()
906 static struct p9_fid *p9_fid_create(struct p9_client *clnt)  in p9_fid_create()  argument
911 	p9_debug(P9_DEBUG_FID, "clnt %p\n", clnt);  in p9_fid_create()
919 	fid->clnt = clnt;  in p9_fid_create()
924 	spin_lock_irq(&clnt->lock);  in p9_fid_create()
925 	ret = idr_alloc_u32(&clnt->fids, fid, &fid->fid, P9_NOFID - 1,  in p9_fid_create()
927 	spin_unlock_irq(&clnt->lock);  in p9_fid_create()
939 	struct p9_client *clnt;  in p9_fid_destroy()  local
943 	clnt = fid->clnt;  in p9_fid_destroy()
944 	spin_lock_irqsave(&clnt->lock, flags);  in p9_fid_destroy()
945 	idr_remove(&clnt->fids, fid->fid);  in p9_fid_destroy()
946 	spin_unlock_irqrestore(&clnt->lock, flags);  in p9_fid_destroy()
1013 	struct p9_client *clnt;  in p9_client_create()  local
1017 	clnt = kmalloc(sizeof(struct p9_client), GFP_KERNEL);  in p9_client_create()
1018 	if (!clnt)  in p9_client_create()
1021 	clnt->trans_mod = NULL;  in p9_client_create()
1022 	clnt->trans = NULL;  in p9_client_create()
1025 	memcpy(clnt->name, client_id, strlen(client_id) + 1);  in p9_client_create()
1027 	spin_lock_init(&clnt->lock);  in p9_client_create()
1028 	idr_init(&clnt->fids);  in p9_client_create()
1030 	err = p9_tag_init(clnt);  in p9_client_create()
1034 	err = parse_opts(options, clnt);  in p9_client_create()
1038 	if (!clnt->trans_mod)  in p9_client_create()
1039 		clnt->trans_mod = v9fs_get_default_trans();  in p9_client_create()
1041 	if (clnt->trans_mod == NULL) {  in p9_client_create()
1049 		 clnt, clnt->trans_mod, clnt->msize, clnt->proto_version);  in p9_client_create()
1051 	err = clnt->trans_mod->create(clnt, dev_name, options);  in p9_client_create()
1055 	if (clnt->msize > clnt->trans_mod->maxsize)  in p9_client_create()
1056 		clnt->msize = clnt->trans_mod->maxsize;  in p9_client_create()
1058 	err = p9_client_version(clnt);  in p9_client_create()
1062 	return clnt;  in p9_client_create()
1065 	clnt->trans_mod->close(clnt);  in p9_client_create()
1067 	v9fs_put_trans(clnt->trans_mod);  in p9_client_create()
1069 	p9_idpool_destroy(clnt->tagpool);  in p9_client_create()
1071 	kfree(clnt);  in p9_client_create()
1076 void p9_client_destroy(struct p9_client *clnt)  in p9_client_destroy()  argument
1081 	p9_debug(P9_DEBUG_MUX, "clnt %p\n", clnt);  in p9_client_destroy()
1083 	if (clnt->trans_mod)  in p9_client_destroy()
1084 		clnt->trans_mod->close(clnt);  in p9_client_destroy()
1086 	v9fs_put_trans(clnt->trans_mod);  in p9_client_destroy()
1088 	idr_for_each_entry(&clnt->fids, fid, id) {  in p9_client_destroy()
1093 	p9_tag_cleanup(clnt);  in p9_client_destroy()
1095 	kfree(clnt);  in p9_client_destroy()
1099 void p9_client_disconnect(struct p9_client *clnt)  in p9_client_disconnect()  argument
1101 	p9_debug(P9_DEBUG_9P, "clnt %p\n", clnt);  in p9_client_disconnect()
1102 	clnt->status = Disconnected;  in p9_client_disconnect()
1106 void p9_client_begin_disconnect(struct p9_client *clnt)  in p9_client_begin_disconnect()  argument
1108 	p9_debug(P9_DEBUG_9P, "clnt %p\n", clnt);  in p9_client_begin_disconnect()
1109 	clnt->status = BeginDisconnect;  in p9_client_begin_disconnect()
1113 struct p9_fid *p9_client_attach(struct p9_client *clnt, struct p9_fid *afid,  in p9_client_attach()  argument
1124 	fid = p9_fid_create(clnt);  in p9_client_attach()
1131 	req = p9_client_rpc(clnt, P9_TATTACH, "ddss?u", fid->fid,  in p9_client_attach()
1138 	err = p9pdu_readf(req->rc, clnt->proto_version, "Q", &qid);  in p9_client_attach()
1140 		trace_9p_protocol_dump(clnt, req->rc);  in p9_client_attach()
1141 		p9_free_req(clnt, req);  in p9_client_attach()
1150 	p9_free_req(clnt, req);  in p9_client_attach()
1164 	struct p9_client *clnt;  in p9_client_walk()  local
1172 	clnt = oldfid->clnt;  in p9_client_walk()
1174 		fid = p9_fid_create(clnt);  in p9_client_walk()
1188 	req = p9_client_rpc(clnt, P9_TWALK, "ddT", oldfid->fid, fid->fid,  in p9_client_walk()
1195 	err = p9pdu_readf(req->rc, clnt->proto_version, "R", &nwqids, &wqids);  in p9_client_walk()
1197 		trace_9p_protocol_dump(clnt, req->rc);  in p9_client_walk()
1198 		p9_free_req(clnt, req);  in p9_client_walk()
1201 	p9_free_req(clnt, req);  in p9_client_walk()
1240 	struct p9_client *clnt;  in p9_client_open()  local
1245 	clnt = fid->clnt;  in p9_client_open()
1247 		p9_is_proto_dotl(clnt) ? "TLOPEN" : "TOPEN", fid->fid, mode);  in p9_client_open()
1253 	if (p9_is_proto_dotl(clnt))  in p9_client_open()
1254 		req = p9_client_rpc(clnt, P9_TLOPEN, "dd", fid->fid, mode);  in p9_client_open()
1256 		req = p9_client_rpc(clnt, P9_TOPEN, "db", fid->fid, mode);  in p9_client_open()
1262 	err = p9pdu_readf(req->rc, clnt->proto_version, "Qd", &qid, &iounit);  in p9_client_open()
1264 		trace_9p_protocol_dump(clnt, req->rc);  in p9_client_open()
1269 		p9_is_proto_dotl(clnt) ? "RLOPEN" : "ROPEN",  qid.type,  in p9_client_open()
1276 	p9_free_req(clnt, req);  in p9_client_open()
1286 	struct p9_client *clnt;  in p9_client_create_dotl()  local
1294 	clnt = ofid->clnt;  in p9_client_create_dotl()
1299 	req = p9_client_rpc(clnt, P9_TLCREATE, "dsddg", ofid->fid, name, flags,  in p9_client_create_dotl()
1306 	err = p9pdu_readf(req->rc, clnt->proto_version, "Qd", qid, &iounit);  in p9_client_create_dotl()
1308 		trace_9p_protocol_dump(clnt, req->rc);  in p9_client_create_dotl()
1321 	p9_free_req(clnt, req);  in p9_client_create_dotl()
1331 	struct p9_client *clnt;  in p9_client_fcreate()  local
1339 	clnt = fid->clnt;  in p9_client_fcreate()
1344 	req = p9_client_rpc(clnt, P9_TCREATE, "dsdb?s", fid->fid, name, perm,  in p9_client_fcreate()
1351 	err = p9pdu_readf(req->rc, clnt->proto_version, "Qd", &qid, &iounit);  in p9_client_fcreate()
1353 		trace_9p_protocol_dump(clnt, req->rc);  in p9_client_fcreate()
1366 	p9_free_req(clnt, req);  in p9_client_fcreate()
1376 	struct p9_client *clnt;  in p9_client_symlink()  local
1381 	clnt = dfid->clnt;  in p9_client_symlink()
1383 	req = p9_client_rpc(clnt, P9_TSYMLINK, "dssg", dfid->fid, name, symtgt,  in p9_client_symlink()
1390 	err = p9pdu_readf(req->rc, clnt->proto_version, "Q", qid);  in p9_client_symlink()
1392 		trace_9p_protocol_dump(clnt, req->rc);  in p9_client_symlink()
1400 	p9_free_req(clnt, req);  in p9_client_symlink()
1408 	struct p9_client *clnt;  in p9_client_link()  local
1413 	clnt = dfid->clnt;  in p9_client_link()
1414 	req = p9_client_rpc(clnt, P9_TLINK, "dds", dfid->fid, oldfid->fid,  in p9_client_link()
1420 	p9_free_req(clnt, req);  in p9_client_link()
1428 	struct p9_client *clnt;  in p9_client_fsync()  local
1434 	clnt = fid->clnt;  in p9_client_fsync()
1436 	req = p9_client_rpc(clnt, P9_TFSYNC, "dd", fid->fid, datasync);  in p9_client_fsync()
1444 	p9_free_req(clnt, req);  in p9_client_fsync()
1454 	struct p9_client *clnt;  in p9_client_clunk()  local
1469 	clnt = fid->clnt;  in p9_client_clunk()
1471 	req = p9_client_rpc(clnt, P9_TCLUNK, "d", fid->fid);  in p9_client_clunk()
1479 	p9_free_req(clnt, req);  in p9_client_clunk()
1498 	struct p9_client *clnt;  in p9_client_remove()  local
1503 	clnt = fid->clnt;  in p9_client_remove()
1505 	req = p9_client_rpc(clnt, P9_TREMOVE, "d", fid->fid);  in p9_client_remove()
1513 	p9_free_req(clnt, req);  in p9_client_remove()
1527 	struct p9_client *clnt;  in p9_client_unlinkat()  local
1532 	clnt = dfid->clnt;  in p9_client_unlinkat()
1533 	req = p9_client_rpc(clnt, P9_TUNLINKAT, "dsd", dfid->fid, name, flags);  in p9_client_unlinkat()
1540 	p9_free_req(clnt, req);  in p9_client_unlinkat()
1549 	struct p9_client *clnt = fid->clnt;  in p9_client_read()  local
1563 		if (!rsize || rsize > clnt->msize-P9_IOHDRSZ)  in p9_client_read()
1564 			rsize = clnt->msize - P9_IOHDRSZ;  in p9_client_read()
1570 		if (clnt->trans_mod->zc_request && rsize > 1024) {  in p9_client_read()
1575 			req = p9_client_zc_rpc(clnt, P9_TREAD, to, NULL, rsize,  in p9_client_read()
1580 			req = p9_client_rpc(clnt, P9_TREAD, "dqd", fid->fid, offset,  in p9_client_read()
1588 		*err = p9pdu_readf(req->rc, clnt->proto_version,  in p9_client_read()
1591 			trace_9p_protocol_dump(clnt, req->rc);  in p9_client_read()
1592 			p9_free_req(clnt, req);  in p9_client_read()
1602 			p9_free_req(clnt, req);  in p9_client_read()
1612 				p9_free_req(clnt, req);  in p9_client_read()
1620 		p9_free_req(clnt, req);  in p9_client_read()
1629 	struct p9_client *clnt = fid->clnt;  in p9_client_write()  local
1641 		if (!rsize || rsize > clnt->msize-P9_IOHDRSZ)  in p9_client_write()
1642 			rsize = clnt->msize - P9_IOHDRSZ;  in p9_client_write()
1648 		if (clnt->trans_mod->zc_request && rsize > 1024) {  in p9_client_write()
1649 			req = p9_client_zc_rpc(clnt, P9_TWRITE, NULL, from, 0,  in p9_client_write()
1653 			req = p9_client_rpc(clnt, P9_TWRITE, "dqV", fid->fid,  in p9_client_write()
1661 		*err = p9pdu_readf(req->rc, clnt->proto_version, "d", &count);  in p9_client_write()
1663 			trace_9p_protocol_dump(clnt, req->rc);  in p9_client_write()
1664 			p9_free_req(clnt, req);  in p9_client_write()
1674 		p9_free_req(clnt, req);  in p9_client_write()
1686 	struct p9_client *clnt;  in p9_client_stat()  local
1697 	clnt = fid->clnt;  in p9_client_stat()
1699 	req = p9_client_rpc(clnt, P9_TSTAT, "d", fid->fid);  in p9_client_stat()
1705 	err = p9pdu_readf(req->rc, clnt->proto_version, "wS", &ignored, ret);  in p9_client_stat()
1707 		trace_9p_protocol_dump(clnt, req->rc);  in p9_client_stat()
1708 		p9_free_req(clnt, req);  in p9_client_stat()
1725 	p9_free_req(clnt, req);  in p9_client_stat()
1738 	struct p9_client *clnt;  in p9_client_getattr_dotl()  local
1750 	clnt = fid->clnt;  in p9_client_getattr_dotl()
1752 	req = p9_client_rpc(clnt, P9_TGETATTR, "dq", fid->fid, request_mask);  in p9_client_getattr_dotl()
1758 	err = p9pdu_readf(req->rc, clnt->proto_version, "A", ret);  in p9_client_getattr_dotl()
1760 		trace_9p_protocol_dump(clnt, req->rc);  in p9_client_getattr_dotl()
1761 		p9_free_req(clnt, req);  in p9_client_getattr_dotl()
1786 	p9_free_req(clnt, req);  in p9_client_getattr_dotl()
1828 	struct p9_client *clnt;  in p9_client_wstat()  local
1831 	clnt = fid->clnt;  in p9_client_wstat()
1832 	wst->size = p9_client_statsize(wst, clnt->proto_version);  in p9_client_wstat()
1847 	req = p9_client_rpc(clnt, P9_TWSTAT, "dwS", fid->fid, wst->size+2, wst);  in p9_client_wstat()
1855 	p9_free_req(clnt, req);  in p9_client_wstat()
1865 	struct p9_client *clnt;  in p9_client_setattr()  local
1868 	clnt = fid->clnt;  in p9_client_setattr()
1880 	req = p9_client_rpc(clnt, P9_TSETATTR, "dI", fid->fid, p9attr);  in p9_client_setattr()
1887 	p9_free_req(clnt, req);  in p9_client_setattr()
1897 	struct p9_client *clnt;  in p9_client_statfs()  local
1900 	clnt = fid->clnt;  in p9_client_statfs()
1904 	req = p9_client_rpc(clnt, P9_TSTATFS, "d", fid->fid);  in p9_client_statfs()
1910 	err = p9pdu_readf(req->rc, clnt->proto_version, "ddqqqqqqd", &sb->type,  in p9_client_statfs()
1914 		trace_9p_protocol_dump(clnt, req->rc);  in p9_client_statfs()
1915 		p9_free_req(clnt, req);  in p9_client_statfs()
1926 	p9_free_req(clnt, req);  in p9_client_statfs()
1937 	struct p9_client *clnt;  in p9_client_rename()  local
1940 	clnt = fid->clnt;  in p9_client_rename()
1945 	req = p9_client_rpc(clnt, P9_TRENAME, "dds", fid->fid,  in p9_client_rename()
1954 	p9_free_req(clnt, req);  in p9_client_rename()
1965 	struct p9_client *clnt;  in p9_client_renameat()  local
1968 	clnt = olddirfid->clnt;  in p9_client_renameat()
1974 	req = p9_client_rpc(clnt, P9_TRENAMEAT, "dsds", olddirfid->fid,  in p9_client_renameat()
1984 	p9_free_req(clnt, req);  in p9_client_renameat()
1998 	struct p9_client *clnt;  in p9_client_xattrwalk()  local
2002 	clnt = file_fid->clnt;  in p9_client_xattrwalk()
2003 	attr_fid = p9_fid_create(clnt);  in p9_client_xattrwalk()
2012 	req = p9_client_rpc(clnt, P9_TXATTRWALK, "dds",  in p9_client_xattrwalk()
2018 	err = p9pdu_readf(req->rc, clnt->proto_version, "q", attr_size);  in p9_client_xattrwalk()
2020 		trace_9p_protocol_dump(clnt, req->rc);  in p9_client_xattrwalk()
2021 		p9_free_req(clnt, req);  in p9_client_xattrwalk()
2024 	p9_free_req(clnt, req);  in p9_client_xattrwalk()
2044 	struct p9_client *clnt;  in p9_client_xattrcreate()  local
2050 	clnt = fid->clnt;  in p9_client_xattrcreate()
2051 	req = p9_client_rpc(clnt, P9_TXATTRCREATE, "dsqd",  in p9_client_xattrcreate()
2058 	p9_free_req(clnt, req);  in p9_client_xattrcreate()
2067 	struct p9_client *clnt;  in p9_client_readdir()  local
2079 	clnt = fid->clnt;  in p9_client_readdir()
2082 	if (!rsize || rsize > clnt->msize-P9_READDIRHDRSZ)  in p9_client_readdir()
2083 		rsize = clnt->msize - P9_READDIRHDRSZ;  in p9_client_readdir()
2089 	if (clnt->trans_mod->zc_request && rsize > 1024) {  in p9_client_readdir()
2094 		req = p9_client_zc_rpc(clnt, P9_TREADDIR, &to, NULL, rsize, 0,  in p9_client_readdir()
2098 		req = p9_client_rpc(clnt, P9_TREADDIR, "dqd", fid->fid,  in p9_client_readdir()
2106 	err = p9pdu_readf(req->rc, clnt->proto_version, "D", &count, &dataptr);  in p9_client_readdir()
2108 		trace_9p_protocol_dump(clnt, req->rc);  in p9_client_readdir()
2121 	p9_free_req(clnt, req);  in p9_client_readdir()
2125 	p9_free_req(clnt, req);  in p9_client_readdir()
2135 	struct p9_client *clnt;  in p9_client_mknod_dotl()  local
2139 	clnt = fid->clnt;  in p9_client_mknod_dotl()
2142 	req = p9_client_rpc(clnt, P9_TMKNOD, "dsdddg", fid->fid, name, mode,  in p9_client_mknod_dotl()
2147 	err = p9pdu_readf(req->rc, clnt->proto_version, "Q", qid);  in p9_client_mknod_dotl()
2149 		trace_9p_protocol_dump(clnt, req->rc);  in p9_client_mknod_dotl()
2156 	p9_free_req(clnt, req);  in p9_client_mknod_dotl()
2166 	struct p9_client *clnt;  in p9_client_mkdir_dotl()  local
2170 	clnt = fid->clnt;  in p9_client_mkdir_dotl()
2173 	req = p9_client_rpc(clnt, P9_TMKDIR, "dsdg", fid->fid, name, mode,  in p9_client_mkdir_dotl()
2178 	err = p9pdu_readf(req->rc, clnt->proto_version, "Q", qid);  in p9_client_mkdir_dotl()
2180 		trace_9p_protocol_dump(clnt, req->rc);  in p9_client_mkdir_dotl()
2187 	p9_free_req(clnt, req);  in p9_client_mkdir_dotl()
2196 	struct p9_client *clnt;  in p9_client_lock_dotl()  local
2200 	clnt = fid->clnt;  in p9_client_lock_dotl()
2206 	req = p9_client_rpc(clnt, P9_TLOCK, "dbdqqds", fid->fid, flock->type,  in p9_client_lock_dotl()
2213 	err = p9pdu_readf(req->rc, clnt->proto_version, "b", status);  in p9_client_lock_dotl()
2215 		trace_9p_protocol_dump(clnt, req->rc);  in p9_client_lock_dotl()
2220 	p9_free_req(clnt, req);  in p9_client_lock_dotl()
2229 	struct p9_client *clnt;  in p9_client_getlock_dotl()  local
2233 	clnt = fid->clnt;  in p9_client_getlock_dotl()
2238 	req = p9_client_rpc(clnt, P9_TGETLOCK, "dbqqds", fid->fid,  glock->type,  in p9_client_getlock_dotl()
2244 	err = p9pdu_readf(req->rc, clnt->proto_version, "bqqds", &glock->type,  in p9_client_getlock_dotl()
2248 		trace_9p_protocol_dump(clnt, req->rc);  in p9_client_getlock_dotl()
2255 	p9_free_req(clnt, req);  in p9_client_getlock_dotl()
2263 	struct p9_client *clnt;  in p9_client_readlink()  local
2267 	clnt = fid->clnt;  in p9_client_readlink()
2270 	req = p9_client_rpc(clnt, P9_TREADLINK, "d", fid->fid);  in p9_client_readlink()
2274 	err = p9pdu_readf(req->rc, clnt->proto_version, "s", target);  in p9_client_readlink()
2276 		trace_9p_protocol_dump(clnt, req->rc);  in p9_client_readlink()
2281 	p9_free_req(clnt, req);  in p9_client_readlink()