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authorTrond Myklebust <Trond.Myklebust@netapp.com>2007-06-07 15:31:36 -0400
committerTrond Myklebust <Trond.Myklebust@netapp.com>2007-07-10 23:40:32 -0400
commit6e84c7b66a0aa0be16a7728d1e687c57978dac2c (patch)
tree0aa7ab3d44b1749dca78d554f1d18a5b6fad43ff /net
parent3b68aaeaf54065e5c44583a1d33ffb7793953ba4 (diff)
SUNRPC: Add a downcall queue to struct rpc_inode
Currently, the downcall queue is tied to the struct gss_auth, which means that different RPCSEC_GSS pseudoflavours must use different upcall pipes. Add a list to struct rpc_inode that can be used instead. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'net')
-rw-r--r--net/sunrpc/auth_gss/auth_gss.c29
-rw-r--r--net/sunrpc/rpc_pipe.c1
2 files changed, 11 insertions, 19 deletions
diff --git a/net/sunrpc/auth_gss/auth_gss.c b/net/sunrpc/auth_gss/auth_gss.c
index e407a352440..50809086fa1 100644
--- a/net/sunrpc/auth_gss/auth_gss.c
+++ b/net/sunrpc/auth_gss/auth_gss.c
@@ -85,7 +85,6 @@ struct gss_auth {
struct rpc_auth rpc_auth;
struct gss_api_mech *mech;
enum rpc_gss_svc service;
- struct list_head upcalls;
struct rpc_clnt *client;
struct dentry *dentry;
};
@@ -268,10 +267,10 @@ gss_release_msg(struct gss_upcall_msg *gss_msg)
}
static struct gss_upcall_msg *
-__gss_find_upcall(struct gss_auth *gss_auth, uid_t uid)
+__gss_find_upcall(struct rpc_inode *rpci, uid_t uid)
{
struct gss_upcall_msg *pos;
- list_for_each_entry(pos, &gss_auth->upcalls, list) {
+ list_for_each_entry(pos, &rpci->in_downcall, list) {
if (pos->uid != uid)
continue;
atomic_inc(&pos->count);
@@ -290,13 +289,14 @@ static inline struct gss_upcall_msg *
gss_add_msg(struct gss_auth *gss_auth, struct gss_upcall_msg *gss_msg)
{
struct inode *inode = gss_auth->dentry->d_inode;
+ struct rpc_inode *rpci = RPC_I(inode);
struct gss_upcall_msg *old;
spin_lock(&inode->i_lock);
- old = __gss_find_upcall(gss_auth, gss_msg->uid);
+ old = __gss_find_upcall(rpci, gss_msg->uid);
if (old == NULL) {
atomic_inc(&gss_msg->count);
- list_add(&gss_msg->list, &gss_auth->upcalls);
+ list_add(&gss_msg->list, &rpci->in_downcall);
} else
gss_msg = old;
spin_unlock(&inode->i_lock);
@@ -493,7 +493,6 @@ gss_pipe_downcall(struct file *filp, const char __user *src, size_t mlen)
const void *p, *end;
void *buf;
struct rpc_clnt *clnt;
- struct gss_auth *gss_auth;
struct gss_upcall_msg *gss_msg;
struct inode *inode = filp->f_path.dentry->d_inode;
struct gss_cl_ctx *ctx;
@@ -526,9 +525,8 @@ gss_pipe_downcall(struct file *filp, const char __user *src, size_t mlen)
err = -ENOENT;
/* Find a matching upcall */
- gss_auth = container_of(clnt->cl_auth, struct gss_auth, rpc_auth);
spin_lock(&inode->i_lock);
- gss_msg = __gss_find_upcall(gss_auth, uid);
+ gss_msg = __gss_find_upcall(RPC_I(inode), uid);
if (gss_msg == NULL) {
spin_unlock(&inode->i_lock);
goto err_put_ctx;
@@ -536,7 +534,7 @@ gss_pipe_downcall(struct file *filp, const char __user *src, size_t mlen)
list_del_init(&gss_msg->list);
spin_unlock(&inode->i_lock);
- p = gss_fill_context(p, end, ctx, gss_auth->mech);
+ p = gss_fill_context(p, end, ctx, gss_msg->auth->mech);
if (IS_ERR(p)) {
err = PTR_ERR(p);
gss_msg->msg.errno = (err == -EACCES) ? -EACCES : -EAGAIN;
@@ -563,18 +561,12 @@ static void
gss_pipe_release(struct inode *inode)
{
struct rpc_inode *rpci = RPC_I(inode);
- struct rpc_clnt *clnt;
- struct rpc_auth *auth;
- struct gss_auth *gss_auth;
+ struct gss_upcall_msg *gss_msg;
- clnt = rpci->private;
- auth = clnt->cl_auth;
- gss_auth = container_of(auth, struct gss_auth, rpc_auth);
spin_lock(&inode->i_lock);
- while (!list_empty(&gss_auth->upcalls)) {
- struct gss_upcall_msg *gss_msg;
+ while (!list_empty(&rpci->in_downcall)) {
- gss_msg = list_entry(gss_auth->upcalls.next,
+ gss_msg = list_entry(rpci->in_downcall.next,
struct gss_upcall_msg, list);
gss_msg->msg.errno = -EPIPE;
atomic_inc(&gss_msg->count);
@@ -637,7 +629,6 @@ gss_create(struct rpc_clnt *clnt, rpc_authflavor_t flavor)
gss_auth->service = gss_pseudoflavor_to_service(gss_auth->mech, flavor);
if (gss_auth->service == 0)
goto err_put_mech;
- INIT_LIST_HEAD(&gss_auth->upcalls);
auth = &gss_auth->rpc_auth;
auth->au_cslack = GSS_CRED_SLACK >> 2;
auth->au_rslack = GSS_VERF_SLACK >> 2;
diff --git a/net/sunrpc/rpc_pipe.c b/net/sunrpc/rpc_pipe.c
index 826190dacfc..2320f1e42da 100644
--- a/net/sunrpc/rpc_pipe.c
+++ b/net/sunrpc/rpc_pipe.c
@@ -833,6 +833,7 @@ init_once(void * foo, struct kmem_cache * cachep, unsigned long flags)
rpci->nreaders = 0;
rpci->nwriters = 0;
INIT_LIST_HEAD(&rpci->in_upcall);
+ INIT_LIST_HEAD(&rpci->in_downcall);
INIT_LIST_HEAD(&rpci->pipe);
rpci->pipelen = 0;
init_waitqueue_head(&rpci->waitq);