sunrpc: plumb gfp_t parm into crcreate operation

We need to be able to call the generic_cred creator from different
contexts. Add a gfp_t parm to the crcreate operation and to
rpcauth_lookup_credcache. For now, we just push the gfp_t parms up
one level to the *_lookup_cred functions.

Signed-off-by: Jeff Layton <jeff.layton@primarydata.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>

diff --git a/include/linux/sunrpc/auth.h b/include/linux/sunrpc/auth.h
index 6a241a2..3b616aa 100644 (file)
--- a/include/linux/sunrpc/auth.h
+++ b/include/linux/sunrpc/auth.h
@@ -127,7 +127,7 @@ struct rpc_authops {
        void                    (*destroy)(struct rpc_auth *);
 
        struct rpc_cred *       (*lookup_cred)(struct rpc_auth *, struct auth_cred *, int);
-       struct rpc_cred *       (*crcreate)(struct rpc_auth*, struct auth_cred *, int);
+       struct rpc_cred *       (*crcreate)(struct rpc_auth*, struct auth_cred *, int, gfp_t);
        int                     (*list_pseudoflavors)(rpc_authflavor_t *, int);
        rpc_authflavor_t        (*info2flavor)(struct rpcsec_gss_info *);
        int                     (*flavor2info)(rpc_authflavor_t,
@@ -178,7 +178,7 @@ rpc_authflavor_t    rpcauth_get_pseudoflavor(rpc_authflavor_t,
 int                    rpcauth_get_gssinfo(rpc_authflavor_t,
                                struct rpcsec_gss_info *);
 int                    rpcauth_list_flavors(rpc_authflavor_t *, int);
-struct rpc_cred *      rpcauth_lookup_credcache(struct rpc_auth *, struct auth_cred *, int);
+struct rpc_cred *      rpcauth_lookup_credcache(struct rpc_auth *, struct auth_cred *, int, gfp_t);
 void                   rpcauth_init_cred(struct rpc_cred *, const struct auth_cred *, struct rpc_auth *, const struct rpc_credops *);
 struct rpc_cred *      rpcauth_lookupcred(struct rpc_auth *, int);
 struct rpc_cred *      rpcauth_generic_bind_cred(struct rpc_task *, struct rpc_cred *, int);

diff --git a/net/sunrpc/auth.c b/net/sunrpc/auth.c
index 02f5367..e0bb30f 100644 (file)
--- a/net/sunrpc/auth.c
+++ b/net/sunrpc/auth.c
@@ -543,7 +543,7 @@ rpcauth_cache_enforce_limit(void)
  */
 struct rpc_cred *
 rpcauth_lookup_credcache(struct rpc_auth *auth, struct auth_cred * acred,
-               int flags)
+               int flags, gfp_t gfp)
 {
        LIST_HEAD(free);
        struct rpc_cred_cache *cache = auth->au_credcache;
@@ -580,7 +580,7 @@ rpcauth_lookup_credcache(struct rpc_auth *auth, struct auth_cred * acred,
        if (flags & RPCAUTH_LOOKUP_RCU)
                return ERR_PTR(-ECHILD);
 
-       new = auth->au_ops->crcreate(auth, acred, flags);
+       new = auth->au_ops->crcreate(auth, acred, flags, gfp);
        if (IS_ERR(new)) {
                cred = new;
                goto out;

diff --git a/net/sunrpc/auth_generic.c b/net/sunrpc/auth_generic.c
index 41248b1..6ed3e3d 100644 (file)
--- a/net/sunrpc/auth_generic.c
+++ b/net/sunrpc/auth_generic.c
@@ -77,15 +77,15 @@ static struct rpc_cred *generic_bind_cred(struct rpc_task *task,
 static struct rpc_cred *
 generic_lookup_cred(struct rpc_auth *auth, struct auth_cred *acred, int flags)
 {
-       return rpcauth_lookup_credcache(&generic_auth, acred, flags);
+       return rpcauth_lookup_credcache(&generic_auth, acred, flags, GFP_KERNEL);
 }
 
 static struct rpc_cred *
-generic_create_cred(struct rpc_auth *auth, struct auth_cred *acred, int flags)
+generic_create_cred(struct rpc_auth *auth, struct auth_cred *acred, int flags, gfp_t gfp)
 {
        struct generic_cred *gcred;
 
-       gcred = kmalloc(sizeof(*gcred), GFP_KERNEL);
+       gcred = kmalloc(sizeof(*gcred), gfp);
        if (gcred == NULL)
                return ERR_PTR(-ENOMEM);
 

diff --git a/net/sunrpc/auth_gss/auth_gss.c b/net/sunrpc/auth_gss/auth_gss.c
index 15612ff..e64ae93 100644 (file)
--- a/net/sunrpc/auth_gss/auth_gss.c
+++ b/net/sunrpc/auth_gss/auth_gss.c
@@ -1299,11 +1299,11 @@ gss_destroy_cred(struct rpc_cred *cred)
 static struct rpc_cred *
 gss_lookup_cred(struct rpc_auth *auth, struct auth_cred *acred, int flags)
 {
-       return rpcauth_lookup_credcache(auth, acred, flags);
+       return rpcauth_lookup_credcache(auth, acred, flags, GFP_NOFS);
 }
 
 static struct rpc_cred *
-gss_create_cred(struct rpc_auth *auth, struct auth_cred *acred, int flags)
+gss_create_cred(struct rpc_auth *auth, struct auth_cred *acred, int flags, gfp_t gfp)
 {
        struct gss_auth *gss_auth = container_of(auth, struct gss_auth, rpc_auth);
        struct gss_cred *cred = NULL;
@@ -1313,7 +1313,7 @@ gss_create_cred(struct rpc_auth *auth, struct auth_cred *acred, int flags)
                __func__, from_kuid(&init_user_ns, acred->uid),
                auth->au_flavor);
 
-       if (!(cred = kzalloc(sizeof(*cred), GFP_NOFS)))
+       if (!(cred = kzalloc(sizeof(*cred), gfp)))
                goto out_err;
 
        rpcauth_init_cred(&cred->gc_base, acred, auth, &gss_credops);

diff --git a/net/sunrpc/auth_unix.c b/net/sunrpc/auth_unix.c
index 0d3dd36..9f65452 100644 (file)
--- a/net/sunrpc/auth_unix.c
+++ b/net/sunrpc/auth_unix.c
@@ -52,11 +52,11 @@ unx_destroy(struct rpc_auth *auth)
 static struct rpc_cred *
 unx_lookup_cred(struct rpc_auth *auth, struct auth_cred *acred, int flags)
 {
-       return rpcauth_lookup_credcache(auth, acred, flags);
+       return rpcauth_lookup_credcache(auth, acred, flags, GFP_NOFS);
 }
 
 static struct rpc_cred *
-unx_create_cred(struct rpc_auth *auth, struct auth_cred *acred, int flags)
+unx_create_cred(struct rpc_auth *auth, struct auth_cred *acred, int flags, gfp_t gfp)
 {
        struct unx_cred *cred;
        unsigned int groups = 0;
@@ -66,7 +66,7 @@ unx_create_cred(struct rpc_auth *auth, struct auth_cred *acred, int flags)
                        from_kuid(&init_user_ns, acred->uid),
                        from_kgid(&init_user_ns, acred->gid));
 
-       if (!(cred = kmalloc(sizeof(*cred), GFP_NOFS)))
+       if (!(cred = kmalloc(sizeof(*cred), gfp)))
                return ERR_PTR(-ENOMEM);
 
        rpcauth_init_cred(&cred->uc_base, acred, auth, &unix_credops);