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Diffstat (limited to 'net/9p/client.c')
-rw-r--r--net/9p/client.c40
1 files changed, 28 insertions, 12 deletions
diff --git a/net/9p/client.c b/net/9p/client.c
index bde9f3d38c57..0aa79faa9850 100644
--- a/net/9p/client.c
+++ b/net/9p/client.c
@@ -29,6 +29,7 @@
#include <linux/poll.h>
#include <linux/idr.h>
#include <linux/mutex.h>
+#include <linux/slab.h>
#include <linux/sched.h>
#include <linux/uaccess.h>
#include <net/9p/9p.h>
@@ -60,7 +61,7 @@ static const match_table_t tokens = {
inline int p9_is_proto_dotl(struct p9_client *clnt)
{
- return (clnt->proto_version == p9_proto_2010L);
+ return (clnt->proto_version == p9_proto_2000L);
}
EXPORT_SYMBOL(p9_is_proto_dotl);
@@ -71,18 +72,19 @@ inline int p9_is_proto_dotu(struct p9_client *clnt)
EXPORT_SYMBOL(p9_is_proto_dotu);
/* Interpret mount option for protocol version */
-static unsigned char get_protocol_version(const substring_t *name)
+static int get_protocol_version(const substring_t *name)
{
- unsigned char version = -EINVAL;
+ int version = -EINVAL;
+
if (!strncmp("9p2000", name->from, name->to-name->from)) {
version = p9_proto_legacy;
P9_DPRINTK(P9_DEBUG_9P, "Protocol version: Legacy\n");
} else if (!strncmp("9p2000.u", name->from, name->to-name->from)) {
version = p9_proto_2000u;
P9_DPRINTK(P9_DEBUG_9P, "Protocol version: 9P2000.u\n");
- } else if (!strncmp("9p2010.L", name->from, name->to-name->from)) {
- version = p9_proto_2010L;
- P9_DPRINTK(P9_DEBUG_9P, "Protocol version: 9P2010.L\n");
+ } else if (!strncmp("9p2000.L", name->from, name->to-name->from)) {
+ version = p9_proto_2000L;
+ P9_DPRINTK(P9_DEBUG_9P, "Protocol version: 9P2000.L\n");
} else {
P9_DPRINTK(P9_DEBUG_ERROR, "Unknown protocol version %s. ",
name->from);
@@ -533,7 +535,12 @@ p9_client_rpc(struct p9_client *c, int8_t type, const char *fmt, ...)
P9_DPRINTK(P9_DEBUG_MUX, "client %p op %d\n", c, type);
- if (c->status != Connected)
+ /* we allow for any status other than disconnected */
+ if (c->status == Disconnected)
+ return ERR_PTR(-EIO);
+
+ /* if status is begin_disconnected we allow only clunk request */
+ if ((c->status == BeginDisconnect) && (type != P9_TCLUNK))
return ERR_PTR(-EIO);
if (signal_pending(current)) {
@@ -672,9 +679,9 @@ int p9_client_version(struct p9_client *c)
c->msize, c->proto_version);
switch (c->proto_version) {
- case p9_proto_2010L:
+ case p9_proto_2000L:
req = p9_client_rpc(c, P9_TVERSION, "ds",
- c->msize, "9P2010.L");
+ c->msize, "9P2000.L");
break;
case p9_proto_2000u:
req = p9_client_rpc(c, P9_TVERSION, "ds",
@@ -700,8 +707,8 @@ int p9_client_version(struct p9_client *c)
}
P9_DPRINTK(P9_DEBUG_9P, "<<< RVERSION msize %d %s\n", msize, version);
- if (!strncmp(version, "9P2010.L", 8))
- c->proto_version = p9_proto_2010L;
+ if (!strncmp(version, "9P2000.L", 8))
+ c->proto_version = p9_proto_2000L;
else if (!strncmp(version, "9P2000.u", 8))
c->proto_version = p9_proto_2000u;
else if (!strncmp(version, "9P2000", 6))
@@ -799,8 +806,10 @@ void p9_client_destroy(struct p9_client *clnt)
v9fs_put_trans(clnt->trans_mod);
- list_for_each_entry_safe(fid, fidptr, &clnt->fidlist, flist)
+ list_for_each_entry_safe(fid, fidptr, &clnt->fidlist, flist) {
+ printk(KERN_INFO "Found fid %d not clunked\n", fid->fid);
p9_fid_destroy(fid);
+ }
if (clnt->fidpool)
p9_idpool_destroy(clnt->fidpool);
@@ -818,6 +827,13 @@ void p9_client_disconnect(struct p9_client *clnt)
}
EXPORT_SYMBOL(p9_client_disconnect);
+void p9_client_begin_disconnect(struct p9_client *clnt)
+{
+ P9_DPRINTK(P9_DEBUG_9P, "clnt %p\n", clnt);
+ clnt->status = BeginDisconnect;
+}
+EXPORT_SYMBOL(p9_client_begin_disconnect);
+
struct p9_fid *p9_client_attach(struct p9_client *clnt, struct p9_fid *afid,
char *uname, u32 n_uname, char *aname)
{