Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs:
  net/9p: Fix the msize calculation.
  fs/9p: add 9P2000.L unlinkat operation
  fs/9p: add 9P2000.L renameat operation
  fs/9p: Always ask new inode in create
  fs/9p: Clean-up get_protocol_version() to use strcmp
  fs/9p: Fix invalid mount options/args
  fs/9p: When doing inode lookup compare qid details and inode mode bits.
  fs/9p: Fid is not valid after a failed clunk.
  net/9p: Remove structure not used in the code
  VirtIO can transfer VIRTQUEUE_NUM of pages.
  Fix the size of receive buffer packing onto VirtIO ring.
  9p: clean up packet dump code
  fs/9p: remove rename work around in 9p
  net/9p: fix client code to fail more gracefully on protocol error

3 files changed, 24 insertions, 183 deletions

diff --git a/include/net/9p/9p.h b/include/net/9p/9p.h
index 008711e8e78f..342dcf13d039 100644
--- a/include/net/9p/9p.h
+++ b/include/net/9p/9p.h
@@ -40,6 +40,7 @@
  * @P9_DEBUG_FID: fid allocation/deallocation tracking
  * @P9_DEBUG_PKT: packet marshalling/unmarshalling
  * @P9_DEBUG_FSC: FS-cache tracing
+ * @P9_DEBUG_VPKT: Verbose packet debugging (full packet dump)
  *
  * These flags are passed at mount time to turn on various levels of
  * verbosity and tracing which will be output to the system logs.
@@ -57,6 +58,7 @@ enum p9_debug_flags {
         P9_DEBUG_FID =          (1<<9),
         P9_DEBUG_PKT =          (1<<10),
         P9_DEBUG_FSC =          (1<<11),
+        P9_DEBUG_VPKT =         (1<<12),
 };
 
 #ifdef CONFIG_NET_9P_DEBUG
@@ -74,10 +76,14 @@ do {  \
         } \
 } while (0)
 
+#define P9_DUMP_PKT(way, pdu) p9pdu_dump(way, pdu)
+
 #else
 #define P9_DPRINTK(level, format, arg...)  do { } while (0)
+#define P9_DUMP_PKT(way, pdu) do { } while (0)
 #endif
 
+
 #define P9_EPRINTK(level, format, arg...) \
 do { \
         printk(level "9p: %s (%d): " \
@@ -175,6 +181,10 @@ enum p9_msg_t {
         P9_RLINK,
         P9_TMKDIR = 72,
         P9_RMKDIR,
+        P9_TRENAMEAT = 74,
+        P9_RRENAMEAT,
+        P9_TUNLINKAT = 76,
+        P9_RUNLINKAT,
         P9_TVERSION = 100,
         P9_RVERSION,
         P9_TAUTH = 102,
@@ -321,21 +331,6 @@ enum p9_qid_t {
 #define P9_READDIRHDRSZ 24
 
 /**
- * struct p9_str - length prefixed string type
- * @len: length of the string
- * @str: the string
- *
- * The protocol uses length prefixed strings for all
- * string data, so we replicate that for our internal
- * string members.
- */
-
-struct p9_str {
-        u16 len;
-        char *str;
-};
-
-/**
  * struct p9_qid - file system entity information
  * @type: 8-bit type &p9_qid_t
  * @version: 16-bit monotonically incrementing version number
@@ -371,11 +366,11 @@ struct p9_qid {
  * @atime: Last access/read time
  * @mtime: Last modify/write time
  * @length: file length
- * @name: last element of path (aka filename) in type &p9_str
- * @uid: owner name in type &p9_str
- * @gid: group owner in type &p9_str
- * @muid: last modifier in type &p9_str
- * @extension: area used to encode extended UNIX support in type &p9_str
+ * @name: last element of path (aka filename)
+ * @uid: owner name
+ * @gid: group owner
+ * @muid: last modifier
+ * @extension: area used to encode extended UNIX support
  * @n_uid: numeric user id of owner (part of 9p2000.u extension)
  * @n_gid: numeric group id (part of 9p2000.u extension)
  * @n_muid: numeric user id of laster modifier (part of 9p2000.u extension)
@@ -512,11 +507,6 @@ struct p9_getlock {
         char *client_id;
 };
 
-/* Structures for Protocol Operations */
-struct p9_tstatfs {
-        u32 fid;
-};
-
 struct p9_rstatfs {
         u32 type;
         u32 bsize;
@@ -529,159 +519,6 @@ struct p9_rstatfs {
         u32 namelen;
 };
 
-struct p9_trename {
-        u32 fid;
-        u32 newdirfid;
-        struct p9_str name;
-};
-
-struct p9_rrename {
-};
-
-struct p9_tversion {
-        u32 msize;
-        struct p9_str version;
-};
-
-struct p9_rversion {
-        u32 msize;
-        struct p9_str version;
-};
-
-struct p9_tauth {
-        u32 afid;
-        struct p9_str uname;
-        struct p9_str aname;
-        u32 n_uname;            /* 9P2000.u extensions */
-};
-
-struct p9_rauth {
-        struct p9_qid qid;
-};
-
-struct p9_rerror {
-        struct p9_str error;
-        u32 errno;              /* 9p2000.u extension */
-};
-
-struct p9_tflush {
-        u16 oldtag;
-};
-
-struct p9_rflush {
-};
-
-struct p9_tattach {
-        u32 fid;
-        u32 afid;
-        struct p9_str uname;
-        struct p9_str aname;
-        u32 n_uname;            /* 9P2000.u extensions */
-};
-
-struct p9_rattach {
-        struct p9_qid qid;
-};
-
-struct p9_twalk {
-        u32 fid;
-        u32 newfid;
-        u16 nwname;
-        struct p9_str wnames[16];
-};
-
-struct p9_rwalk {
-        u16 nwqid;
-        struct p9_qid wqids[16];
-};
-
-struct p9_topen {
-        u32 fid;
-        u8 mode;
-};
-
-struct p9_ropen {
-        struct p9_qid qid;
-        u32 iounit;
-};
-
-struct p9_tcreate {
-        u32 fid;
-        struct p9_str name;
-        u32 perm;
-        u8 mode;
-        struct p9_str extension;
-};
-
-struct p9_rcreate {
-        struct p9_qid qid;
-        u32 iounit;
-};
-
-struct p9_tread {
-        u32 fid;
-        u64 offset;
-        u32 count;
-};
-
-struct p9_rread {
-        u32 count;
-        u8 *data;
-};
-
-struct p9_twrite {
-        u32 fid;
-        u64 offset;
-        u32 count;
-        u8 *data;
-};
-
-struct p9_rwrite {
-        u32 count;
-};
-
-struct p9_treaddir {
-        u32 fid;
-        u64 offset;
-        u32 count;
-};
-
-struct p9_rreaddir {
-        u32 count;
-        u8 *data;
-};
-
-
-struct p9_tclunk {
-        u32 fid;
-};
-
-struct p9_rclunk {
-};
-
-struct p9_tremove {
-        u32 fid;
-};
-
-struct p9_rremove {
-};
-
-struct p9_tstat {
-        u32 fid;
-};
-
-struct p9_rstat {
-        struct p9_wstat stat;
-};
-
-struct p9_twstat {
-        u32 fid;
-        struct p9_wstat stat;
-};
-
-struct p9_rwstat {
-};
-
 /**
  * struct p9_fcall - primary packet structure
  * @size: prefixed length of the structure
diff --git a/include/net/9p/client.h b/include/net/9p/client.h
index d26d5e98a173..55ce72ce9861 100644
--- a/include/net/9p/client.h
+++ b/include/net/9p/client.h
@@ -36,9 +36,9 @@
  */
 
 enum p9_proto_versions{
-        p9_proto_legacy = 0,
-        p9_proto_2000u = 1,
-        p9_proto_2000L = 2,
+        p9_proto_legacy,
+        p9_proto_2000u,
+        p9_proto_2000L,
 };
 
 
@@ -211,7 +211,10 @@ struct p9_dirent {
 };
 
 int p9_client_statfs(struct p9_fid *fid, struct p9_rstatfs *sb);
-int p9_client_rename(struct p9_fid *fid, struct p9_fid *newdirfid, char *name);
+int p9_client_rename(struct p9_fid *fid, struct p9_fid *newdirfid,
+                     const char *name);
+int p9_client_renameat(struct p9_fid *olddirfid, const char *old_name,
+                       struct p9_fid *newdirfid, const char *new_name);
 struct p9_client *p9_client_create(const char *dev_name, char *options);
 void p9_client_destroy(struct p9_client *clnt);
 void p9_client_disconnect(struct p9_client *clnt);
@@ -231,6 +234,7 @@ int p9_client_create_dotl(struct p9_fid *ofid, char *name, u32 flags, u32 mode,
 int p9_client_clunk(struct p9_fid *fid);
 int p9_client_fsync(struct p9_fid *fid, int datasync);
 int p9_client_remove(struct p9_fid *fid);
+int p9_client_unlinkat(struct p9_fid *dfid, const char *name, int flags);
 int p9_client_read(struct p9_fid *fid, char *data, char __user *udata,
                                                         u64 offset, u32 count);
 int p9_client_write(struct p9_fid *fid, char *data, const char __user *udata,
diff --git a/include/net/9p/transport.h b/include/net/9p/transport.h
index d8549fb9c742..83531ebeee99 100644
--- a/include/net/9p/transport.h
+++ b/include/net/9p/transport.h
@@ -67,7 +67,7 @@ struct p9_trans_module {
 
 void v9fs_register_trans(struct p9_trans_module *m);
 void v9fs_unregister_trans(struct p9_trans_module *m);
-struct p9_trans_module *v9fs_get_trans_by_name(const substring_t *name);
+struct p9_trans_module *v9fs_get_trans_by_name(char *s);
 struct p9_trans_module *v9fs_get_default_trans(void);
 void v9fs_put_trans(struct p9_trans_module *m);
 #endif /* NET_9P_TRANSPORT_H */