From 961a5a5028b8ae6fe91f28d5a81696de90b74bc2 Mon Sep 17 00:00:00 2001 From: Rob Landley Date: Sat, 30 Apr 2011 12:56:24 -0500 Subject: net/9p: Change linuxdoc names to match functions. As on Jeopardy, my question is in the form of a patch: Does this have some special meaning, or is it an accident? (I looked at other filesystems but they didn't bother having doc entries for their init/exit function that I could find.) Signed-off-by: Rob Landley Signed-off-by: Eric Van Hensbergen --- net/9p/mod.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'net') diff --git a/net/9p/mod.c b/net/9p/mod.c index cf8a4128cd5..72c39827505 100644 --- a/net/9p/mod.c +++ b/net/9p/mod.c @@ -139,7 +139,7 @@ void v9fs_put_trans(struct p9_trans_module *m) } /** - * v9fs_init - Initialize module + * init_p9 - Initialize module * */ static int __init init_p9(void) @@ -154,7 +154,7 @@ static int __init init_p9(void) } /** - * v9fs_init - shutdown module + * exit_p9 - shutdown module * */ -- cgit v1.2.3 From aca0076336d0cb689b87640194df794a0fedadc3 Mon Sep 17 00:00:00 2001 From: Rob Landley Date: Sun, 8 May 2011 18:46:38 +0000 Subject: 9p: typo fixes and minor cleanups Typo fixes and minor cleanups for v9fs Signed-off-by: Rob Landley Reviewed-by: Venkateswararao Jujjuri (JV) Signed-off-by: Eric Van Hensbergen --- net/9p/client.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) (limited to 'net') diff --git a/net/9p/client.c b/net/9p/client.c index ceab943dfc4..5b705559a6b 100644 --- a/net/9p/client.c +++ b/net/9p/client.c @@ -92,9 +92,6 @@ static int get_protocol_version(const substring_t *name) return version; } -static struct p9_req_t * -p9_client_rpc(struct p9_client *c, int8_t type, const char *fmt, ...); - /** * parse_options - parse mount options into client structure * @opts: options string passed from mount @@ -518,12 +515,15 @@ out_err: return err; } +static struct p9_req_t * +p9_client_rpc(struct p9_client *c, int8_t type, const char *fmt, ...); + /** * p9_client_flush - flush (cancel) a request * @c: client state * @oldreq: request to cancel * - * This sents a flush for a particular requests and links + * This sents a flush for a particular request and links * the flush request to the original request. The current * code only supports a single flush request although the protocol * allows for multiple flush requests to be sent for a single request. @@ -1298,7 +1298,7 @@ p9_client_read(struct p9_fid *fid, char *data, char __user *udata, u64 offset, if (count < rsize) rsize = count; - /* Don't bother zerocopy form small IO (< 1024) */ + /* Don't bother zerocopy for small IO (< 1024) */ if (((clnt->trans_mod->pref & P9_TRANS_PREF_PAYLOAD_MASK) == P9_TRANS_PREF_PAYLOAD_SEP) && (rsize > 1024)) { req = p9_client_rpc(clnt, P9_TREAD, "dqE", fid->fid, offset, -- cgit v1.2.3 From 87211cd8db6e5d1c9154812139d04a3dc6f282bf Mon Sep 17 00:00:00 2001 From: Eric Van Hensbergen Date: Mon, 16 May 2011 10:46:39 -0500 Subject: 9p: remove experimental tag from tested configurations The 9p client is currently undergoing regular regresssion and stress testing as a by-product of the virtfs work. I think its finally time to take off the experimental tags from the well-tested code paths. Signed-off-by: Eric Van Hensbergen --- net/9p/Kconfig | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'net') diff --git a/net/9p/Kconfig b/net/9p/Kconfig index 7ed75c7bd5d..d9ea09b11cf 100644 --- a/net/9p/Kconfig +++ b/net/9p/Kconfig @@ -3,8 +3,8 @@ # menuconfig NET_9P - depends on NET && EXPERIMENTAL - tristate "Plan 9 Resource Sharing Support (9P2000) (Experimental)" + depends on NET + tristate "Plan 9 Resource Sharing Support (9P2000)" help If you say Y here, you will get experimental support for Plan 9 resource sharing via the 9P2000 protocol. @@ -16,8 +16,8 @@ menuconfig NET_9P if NET_9P config NET_9P_VIRTIO - depends on EXPERIMENTAL && VIRTIO - tristate "9P Virtio Transport (Experimental)" + depends on VIRTIO + tristate "9P Virtio Transport" help This builds support for a transports between guest partitions and a host partition. -- cgit v1.2.3 From fe1cbabaea5e99a93bafe12fbf1b3b9cc71b610a Mon Sep 17 00:00:00 2001 From: "Aneesh Kumar K.V" Date: Fri, 20 May 2011 18:55:52 +0000 Subject: net/9p: p9_idpool_get return -1 on error We need to return -1 on error. Also handle error properly Signed-off-by: Aneesh Kumar K.V Signed-off-by: Eric Van Hensbergen --- net/9p/client.c | 20 ++++++++++++-------- net/9p/util.c | 2 +- 2 files changed, 13 insertions(+), 9 deletions(-) (limited to 'net') diff --git a/net/9p/client.c b/net/9p/client.c index 5b705559a6b..9e3b0e640da 100644 --- a/net/9p/client.c +++ b/net/9p/client.c @@ -304,12 +304,13 @@ static int p9_tag_init(struct p9_client *c) c->tagpool = p9_idpool_create(); if (IS_ERR(c->tagpool)) { err = PTR_ERR(c->tagpool); - c->tagpool = NULL; goto error; } - - p9_idpool_get(c->tagpool); /* reserve tag 0 */ - + err = p9_idpool_get(c->tagpool); /* reserve tag 0 */ + if (err < 0) { + p9_idpool_destroy(c->tagpool); + goto error; + } c->max_tag = 0; error: return err; @@ -789,11 +790,13 @@ struct p9_client *p9_client_create(const char *dev_name, char *options) spin_lock_init(&clnt->lock); INIT_LIST_HEAD(&clnt->fidlist); - p9_tag_init(clnt); + err = p9_tag_init(clnt); + if (err < 0) + goto free_client; err = parse_opts(options, clnt); if (err < 0) - goto free_client; + goto destroy_tagpool; if (!clnt->trans_mod) clnt->trans_mod = v9fs_get_default_trans(); @@ -802,13 +805,12 @@ struct p9_client *p9_client_create(const char *dev_name, char *options) err = -EPROTONOSUPPORT; P9_DPRINTK(P9_DEBUG_ERROR, "No transport defined or default transport\n"); - goto free_client; + goto destroy_tagpool; } clnt->fidpool = p9_idpool_create(); if (IS_ERR(clnt->fidpool)) { err = PTR_ERR(clnt->fidpool); - clnt->fidpool = NULL; goto put_trans; } @@ -834,6 +836,8 @@ destroy_fidpool: p9_idpool_destroy(clnt->fidpool); put_trans: v9fs_put_trans(clnt->trans_mod); +destroy_tagpool: + p9_idpool_destroy(clnt->tagpool); free_client: kfree(clnt); return ERR_PTR(err); diff --git a/net/9p/util.c b/net/9p/util.c index da6af81e59d..9c1c9348ac3 100644 --- a/net/9p/util.c +++ b/net/9p/util.c @@ -93,7 +93,7 @@ int p9_idpool_get(struct p9_idpool *p) retry: if (idr_pre_get(&p->pool, GFP_NOFS) == 0) - return 0; + return -1; spin_lock_irqsave(&p->lock, flags); -- cgit v1.2.3 From e75762fdcd27c1d0293d9160b3ac6dcb3371272a Mon Sep 17 00:00:00 2001 From: Rob Landley Date: Mon, 23 May 2011 21:46:56 -0500 Subject: net/9p: enable 9p to work in non-default network namespace Teach 9p filesystem to work in container with non-default network namespace. (Note: I also patched the unix domain socket code but don't have a test case for that. It's the same fix, I just don't have a server for it...) To test, run diod server (http://code.google.com/p/diod): diod -n -f -L stderr -l 172.23.255.1:9999 -c /dev/null -e /root and then mount like so: mount -t 9p -o port=9999,aname=/root,version=9p2000.L 172.23.255.1 /mnt A container test environment is described at http://landley.net/lxc Signed-off-by: Rob Landley Signed-off-by: Eric Van Hensbergen --- net/9p/trans_fd.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) (limited to 'net') diff --git a/net/9p/trans_fd.c b/net/9p/trans_fd.c index 4a9084395d3..fdfdb5747f6 100644 --- a/net/9p/trans_fd.c +++ b/net/9p/trans_fd.c @@ -916,8 +916,8 @@ p9_fd_create_tcp(struct p9_client *client, const char *addr, char *args) sin_server.sin_family = AF_INET; sin_server.sin_addr.s_addr = in_aton(addr); sin_server.sin_port = htons(opts.port); - err = sock_create_kern(PF_INET, SOCK_STREAM, IPPROTO_TCP, &csocket); - + err = __sock_create(read_pnet(¤t->nsproxy->net_ns), PF_INET, + SOCK_STREAM, IPPROTO_TCP, &csocket, 1); if (err) { P9_EPRINTK(KERN_ERR, "p9_trans_tcp: problem creating socket\n"); return err; @@ -954,7 +954,8 @@ p9_fd_create_unix(struct p9_client *client, const char *addr, char *args) sun_server.sun_family = PF_UNIX; strcpy(sun_server.sun_path, addr); - err = sock_create_kern(PF_UNIX, SOCK_STREAM, 0, &csocket); + err = __sock_create(read_pnet(¤t->nsproxy->net_ns), PF_UNIX, + SOCK_STREAM, 0, &csocket, 1); if (err < 0) { P9_EPRINTK(KERN_ERR, "p9_trans_unix: problem creating socket\n"); return err; -- cgit v1.2.3