Commit 4f7ebe80 authored by Arun R Bharadwaj's avatar Arun R Bharadwaj Committed by Eric Van Hensbergen
Browse files

net/9p: This patch implements TLERROR/RLERROR on the 9P client. 



Signed-off-by: default avatarArun R Bharadwaj <arun@linux.vnet.ibm.com>
Signed-off-by: default avatarVenkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
Signed-off-by: default avatarEric Van Hensbergen <ericvh@gmail.com>
parent 7c7298cf

include/net/9p/9p.h

+4 −0
Original line number Diff line number Diff line
@@ -86,6 +86,8 @@ do { \ 


/**

 * enum p9_msg_t - 9P message types

 * @P9_TLERROR: not used

 * @P9_RLERROR: response for any failed request for 9P2000.L

 * @P9_TSTATFS: file system status request

 * @P9_RSTATFS: file system status response

 * @P9_TSYMLINK: make symlink request
@@ -137,6 +139,8 @@ do { \ 
 */



enum p9_msg_t {

	P9_TLERROR = 6,

	P9_RLERROR,

	P9_TSTATFS = 8,

	P9_RSTATFS,

	P9_TLOPEN = 12,

net/9p/client.c

+27 −16
Original line number Diff line number Diff line
@@ -450,32 +450,43 @@ static int p9_check_errors(struct p9_client *c, struct p9_req_t *req) 
		return err;

	}



	if (type == P9_RERROR) {

	if (type == P9_RERROR || type == P9_RLERROR) {

		int ecode;



		if (!p9_is_proto_dotl(c)) {

			char *ename;



			err = p9pdu_readf(req->rc, c->proto_version, "s?d",

								&ename, &ecode);

		if (err) {

			P9_DPRINTK(P9_DEBUG_ERROR, "couldn't parse error%d\n",

									err);

			return err;

		}

			if (err)

				goto out_err;



		if (p9_is_proto_dotu(c) ||

			p9_is_proto_dotl(c))

			if (p9_is_proto_dotu(c))

				err = -ecode;



		if (!err || !IS_ERR_VALUE(err))

			if (!err || !IS_ERR_VALUE(err)) {

				err = p9_errstr2errno(ename, strlen(ename));



				P9_DPRINTK(P9_DEBUG_9P, "<<< RERROR (%d) %s\n", -ecode, ename);



				kfree(ename);

			}

		} else {

			err = p9pdu_readf(req->rc, c->proto_version, "d", &ecode);

			err = -ecode;



			P9_DPRINTK(P9_DEBUG_9P, "<<< RLERROR (%d)\n", -ecode);

		}



	} else

		err = 0;



	return err;



out_err:

	P9_DPRINTK(P9_DEBUG_ERROR, "couldn't parse error%d\n", err);



	return err;

}



/**