From: Kirill A. Shutemov <kirill@xxxxxxxxxxxxx>
Get rpc_pipefs mount point by path.
Signed-off-by: Kirill A. Shutemov <kirill@xxxxxxxxxxxxx>
---
include/linux/sunrpc/rpc_pipe_fs.h | 2 ++
net/sunrpc/rpc_pipe.c | 24 ++++++++++++++++++++++++
2 files changed, 26 insertions(+), 0 deletions(-)
diff --git a/include/linux/sunrpc/rpc_pipe_fs.h b/include/linux/sunrpc/rpc_pipe_fs.h
index b09bfa5..922057c 100644
--- a/include/linux/sunrpc/rpc_pipe_fs.h
+++ b/include/linux/sunrpc/rpc_pipe_fs.h
@@ -46,6 +46,8 @@ RPC_I(struct inode *inode)
extern struct vfsmount *init_rpc_pipefs;
+struct vfsmount *get_rpc_pipefs(const char *path);
+
extern int rpc_queue_upcall(struct inode *, struct rpc_pipe_msg *);
struct rpc_clnt;
diff --git a/net/sunrpc/rpc_pipe.c b/net/sunrpc/rpc_pipe.c
index b1e299b..c48f7a5 100644
--- a/net/sunrpc/rpc_pipe.c
+++ b/net/sunrpc/rpc_pipe.c
@@ -931,6 +931,30 @@ static const struct super_operations s_ops = {
#define RPCAUTH_GSSMAGIC 0x67596969
+struct vfsmount *get_rpc_pipefs(const char *p)
+{
+ int error;
+ struct vfsmount *rpcmount;
+ struct path path;
+
+ if (!p)
+ return mntget(init_rpc_pipefs);
+
+ error = kern_path(p, LOOKUP_FOLLOW | LOOKUP_DIRECTORY, &path);
+ if (error)
+ return ERR_PTR(error);
+
+ if (path.mnt->mnt_sb->s_magic != RPCAUTH_GSSMAGIC) {
+ path_put(&path);
+ return ERR_PTR(-EINVAL);
+ }
+
+ rpcmount = mntget(path.mnt);
+ path_put(&path);
+
+ return rpcmount;
+}
+
/*
* We have a single directory with 1 node in it.
*/
--
1.7.3.4
--
To unsubscribe from this list: send the line "unsubscribe linux-nfs" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
