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| author |   Venkateswararao Jujjuri (JV) <jvrao@linux.vnet.ibm.com> | 2010-06-03 15:16:59 -0700 |
|---|---|---|
| committer |   Eric Van Hensbergen <ericvh@gmail.com> | 2010-08-02 14:28:25 -0500 |
| commit | 652df9a7fd03cb47a3f663f0c08a2bd086505e9b (patch) | |
| tree | af90ae0762a8770e660b4cbb23f7e9225cd5dba7 | |
| parent | 9p: Define and implement TLINK for 9P2000.L (diff) | |
| download | linux-dev-652df9a7fd03cb47a3f663f0c08a2bd086505e9b.tar.xz linux-dev-652df9a7fd03cb47a3f663f0c08a2bd086505e9b.zip | |
9p: Define and implement TLINK for 9P2000.L
This patch adds a helper function to get the dentry from inode and
uses it in creating a Hardlink
SYNOPSIS
size[4] Tlink tag[2] dfid[4] oldfid[4] newpath[s]
size[4] Rlink tag[2]
DESCRIPTION
Create a link 'newpath' in directory pointed by dfid linking to oldfid path.
[sripathik@in.ibm.com : p9_client_link should not free req structure
if p9_client_rpc has returned an error.]
Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
| -rw-r--r-- | include/net/9p/9p.h | 2 | ||||
| -rw-r--r-- | include/net/9p/client.h | 1 | ||||
| -rw-r--r-- | net/9p/client.c | 19 |
3 files changed, 22 insertions, 0 deletions
diff --git a/include/net/9p/9p.h b/include/net/9p/9p.h index 7f64d72f6c61..5985c0f83db3 100644 --- a/include/net/9p/9p.h +++ b/include/net/9p/9p.h @@ -139,6 +139,8 @@ enum p9_msg_t { P9_RSETATTR, P9_TREADDIR = 40, P9_RREADDIR, + P9_TLINK = 70, + P9_RLINK, P9_TVERSION = 100, P9_RVERSION, P9_TAUTH = 102, diff --git a/include/net/9p/client.h b/include/net/9p/client.h index afdc385152f6..e36f11650e99 100644 --- a/include/net/9p/client.h +++ b/include/net/9p/client.h @@ -226,6 +226,7 @@ struct p9_fid *p9_client_walk(struct p9_fid *oldfid, int nwname, char **wnames, int p9_client_open(struct p9_fid *fid, int mode); int p9_client_fcreate(struct p9_fid *fid, char *name, u32 perm, int mode, char *extension); +int p9_client_link(struct p9_fid *fid, struct p9_fid *oldfid, char *newname); int p9_client_clunk(struct p9_fid *fid); int p9_client_remove(struct p9_fid *fid); int p9_client_read(struct p9_fid *fid, char *data, char __user *udata, diff --git a/net/9p/client.c b/net/9p/client.c index b2f70ec889c2..ad1c4489ab4d 100644 --- a/net/9p/client.c +++ b/net/9p/client.c @@ -1095,6 +1095,25 @@ error: } EXPORT_SYMBOL(p9_client_fcreate); +int p9_client_link(struct p9_fid *dfid, struct p9_fid *oldfid, char *newname) +{ + struct p9_client *clnt; + struct p9_req_t *req; + + P9_DPRINTK(P9_DEBUG_9P, ">>> TLINK dfid %d oldfid %d newname %s\n", + dfid->fid, oldfid->fid, newname); + clnt = dfid->clnt; + req = p9_client_rpc(clnt, P9_TLINK, "dds", dfid->fid, oldfid->fid, + newname); + if (IS_ERR(req)) + return PTR_ERR(req); + + P9_DPRINTK(P9_DEBUG_9P, "<<< RLINK\n"); + p9_free_req(clnt, req); + return 0; +} +EXPORT_SYMBOL(p9_client_link); + int p9_client_clunk(struct p9_fid *fid) { int err; |