aboutsummaryrefslogtreecommitdiffstats
path: root/net
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2010-08-07 13:19:36 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-08-07 13:19:36 -0700
commit5df6b8e65ad0f2eaee202ff002ac00d1ac605315 (patch)
tree2eff6606f8e39dc1fd7eb8a05feb2a9927151805 /net
parentfe21ea18c742ab0eb8f6f8ebc543374839a02a87 (diff)
parent3dce9a5c3a39a664e372886ea86c42ae7ae33dfc (diff)
downloadmrst-s0i3-test-5df6b8e65ad0f2eaee202ff002ac00d1ac605315.tar.gz
mrst-s0i3-test-5df6b8e65ad0f2eaee202ff002ac00d1ac605315.tar.xz
mrst-s0i3-test-5df6b8e65ad0f2eaee202ff002ac00d1ac605315.zip
Merge branch 'nfs-for-2.6.36' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6
* 'nfs-for-2.6.36' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6: (42 commits) NFS: NFSv4.1 is no longer a "developer only" feature NFS: NFS_V4 is no longer an EXPERIMENTAL feature NFS: Fix /proc/mount for legacy binary interface NFS: Fix the locking in nfs4_callback_getattr SUNRPC: Defer deleting the security context until gss_do_free_ctx() SUNRPC: prevent task_cleanup running on freed xprt SUNRPC: Reduce asynchronous RPC task stack usage SUNRPC: Move the bound cred to struct rpc_rqst SUNRPC: Clean up of rpc_bindcred() SUNRPC: Move remaining RPC client related task initialisation into clnt.c SUNRPC: Ensure that rpc_exit() always wakes up a sleeping task SUNRPC: Make the credential cache hashtable size configurable SUNRPC: Store the hashtable size in struct rpc_cred_cache NFS: Ensure the AUTH_UNIX credcache is allocated dynamically NFS: Fix the NFS users of rpc_restart_call() SUNRPC: The function rpc_restart_call() should return success/failure NFSv4: Get rid of the bogus RPC_ASSASSINATED(task) checks NFSv4: Clean up the process of renewing the NFSv4 lease NFSv4.1: Handle NFS4ERR_DELAY on SEQUENCE correctly NFS: nfs_rename() should not have to flush out writebacks ...
Diffstat (limited to 'net')
-rw-r--r--net/sunrpc/auth.c157
-rw-r--r--net/sunrpc/auth_generic.c23
-rw-r--r--net/sunrpc/auth_gss/auth_gss.c29
-rw-r--r--net/sunrpc/auth_null.c2
-rw-r--r--net/sunrpc/auth_unix.c21
-rw-r--r--net/sunrpc/clnt.c182
-rw-r--r--net/sunrpc/sched.c104
-rw-r--r--net/sunrpc/sunrpc_syms.c15
-rw-r--r--net/sunrpc/xprt.c3
9 files changed, 301 insertions, 235 deletions
diff --git a/net/sunrpc/auth.c b/net/sunrpc/auth.c
index 8dc47f1d000..880d0de3f50 100644
--- a/net/sunrpc/auth.c
+++ b/net/sunrpc/auth.c
@@ -19,6 +19,15 @@
# define RPCDBG_FACILITY RPCDBG_AUTH
#endif
+#define RPC_CREDCACHE_DEFAULT_HASHBITS (4)
+struct rpc_cred_cache {
+ struct hlist_head *hashtable;
+ unsigned int hashbits;
+ spinlock_t lock;
+};
+
+static unsigned int auth_hashbits = RPC_CREDCACHE_DEFAULT_HASHBITS;
+
static DEFINE_SPINLOCK(rpc_authflavor_lock);
static const struct rpc_authops *auth_flavors[RPC_AUTH_MAXFLAVOR] = {
&authnull_ops, /* AUTH_NULL */
@@ -29,6 +38,42 @@ static const struct rpc_authops *auth_flavors[RPC_AUTH_MAXFLAVOR] = {
static LIST_HEAD(cred_unused);
static unsigned long number_cred_unused;
+#define MAX_HASHTABLE_BITS (10)
+static int param_set_hashtbl_sz(const char *val, struct kernel_param *kp)
+{
+ unsigned long num;
+ unsigned int nbits;
+ int ret;
+
+ if (!val)
+ goto out_inval;
+ ret = strict_strtoul(val, 0, &num);
+ if (ret == -EINVAL)
+ goto out_inval;
+ nbits = fls(num);
+ if (num > (1U << nbits))
+ nbits++;
+ if (nbits > MAX_HASHTABLE_BITS || nbits < 2)
+ goto out_inval;
+ *(unsigned int *)kp->arg = nbits;
+ return 0;
+out_inval:
+ return -EINVAL;
+}
+
+static int param_get_hashtbl_sz(char *buffer, struct kernel_param *kp)
+{
+ unsigned int nbits;
+
+ nbits = *(unsigned int *)kp->arg;
+ return sprintf(buffer, "%u", 1U << nbits);
+}
+
+#define param_check_hashtbl_sz(name, p) __param_check(name, p, unsigned int);
+
+module_param_named(auth_hashtable_size, auth_hashbits, hashtbl_sz, 0644);
+MODULE_PARM_DESC(auth_hashtable_size, "RPC credential cache hashtable size");
+
static u32
pseudoflavor_to_flavor(u32 flavor) {
if (flavor >= RPC_AUTH_MAXFLAVOR)
@@ -145,16 +190,23 @@ int
rpcauth_init_credcache(struct rpc_auth *auth)
{
struct rpc_cred_cache *new;
- int i;
+ unsigned int hashsize;
new = kmalloc(sizeof(*new), GFP_KERNEL);
if (!new)
- return -ENOMEM;
- for (i = 0; i < RPC_CREDCACHE_NR; i++)
- INIT_HLIST_HEAD(&new->hashtable[i]);
+ goto out_nocache;
+ new->hashbits = auth_hashbits;
+ hashsize = 1U << new->hashbits;
+ new->hashtable = kcalloc(hashsize, sizeof(new->hashtable[0]), GFP_KERNEL);
+ if (!new->hashtable)
+ goto out_nohashtbl;
spin_lock_init(&new->lock);
auth->au_credcache = new;
return 0;
+out_nohashtbl:
+ kfree(new);
+out_nocache:
+ return -ENOMEM;
}
EXPORT_SYMBOL_GPL(rpcauth_init_credcache);
@@ -183,11 +235,12 @@ rpcauth_clear_credcache(struct rpc_cred_cache *cache)
LIST_HEAD(free);
struct hlist_head *head;
struct rpc_cred *cred;
+ unsigned int hashsize = 1U << cache->hashbits;
int i;
spin_lock(&rpc_credcache_lock);
spin_lock(&cache->lock);
- for (i = 0; i < RPC_CREDCACHE_NR; i++) {
+ for (i = 0; i < hashsize; i++) {
head = &cache->hashtable[i];
while (!hlist_empty(head)) {
cred = hlist_entry(head->first, struct rpc_cred, cr_hash);
@@ -216,6 +269,7 @@ rpcauth_destroy_credcache(struct rpc_auth *auth)
if (cache) {
auth->au_credcache = NULL;
rpcauth_clear_credcache(cache);
+ kfree(cache->hashtable);
kfree(cache);
}
}
@@ -297,7 +351,7 @@ rpcauth_lookup_credcache(struct rpc_auth *auth, struct auth_cred * acred,
*entry, *new;
unsigned int nr;
- nr = hash_long(acred->uid, RPC_CREDCACHE_HASHBITS);
+ nr = hash_long(acred->uid, cache->hashbits);
rcu_read_lock();
hlist_for_each_entry_rcu(entry, pos, &cache->hashtable[nr], cr_hash) {
@@ -390,16 +444,16 @@ rpcauth_init_cred(struct rpc_cred *cred, const struct auth_cred *acred,
}
EXPORT_SYMBOL_GPL(rpcauth_init_cred);
-void
+struct rpc_cred *
rpcauth_generic_bind_cred(struct rpc_task *task, struct rpc_cred *cred, int lookupflags)
{
- task->tk_msg.rpc_cred = get_rpccred(cred);
dprintk("RPC: %5u holding %s cred %p\n", task->tk_pid,
cred->cr_auth->au_ops->au_name, cred);
+ return get_rpccred(cred);
}
EXPORT_SYMBOL_GPL(rpcauth_generic_bind_cred);
-static void
+static struct rpc_cred *
rpcauth_bind_root_cred(struct rpc_task *task, int lookupflags)
{
struct rpc_auth *auth = task->tk_client->cl_auth;
@@ -407,45 +461,43 @@ rpcauth_bind_root_cred(struct rpc_task *task, int lookupflags)
.uid = 0,
.gid = 0,
};
- struct rpc_cred *ret;
dprintk("RPC: %5u looking up %s cred\n",
task->tk_pid, task->tk_client->cl_auth->au_ops->au_name);
- ret = auth->au_ops->lookup_cred(auth, &acred, lookupflags);
- if (!IS_ERR(ret))
- task->tk_msg.rpc_cred = ret;
- else
- task->tk_status = PTR_ERR(ret);
+ return auth->au_ops->lookup_cred(auth, &acred, lookupflags);
}
-static void
+static struct rpc_cred *
rpcauth_bind_new_cred(struct rpc_task *task, int lookupflags)
{
struct rpc_auth *auth = task->tk_client->cl_auth;
- struct rpc_cred *ret;
dprintk("RPC: %5u looking up %s cred\n",
task->tk_pid, auth->au_ops->au_name);
- ret = rpcauth_lookupcred(auth, lookupflags);
- if (!IS_ERR(ret))
- task->tk_msg.rpc_cred = ret;
- else
- task->tk_status = PTR_ERR(ret);
+ return rpcauth_lookupcred(auth, lookupflags);
}
-void
+static int
rpcauth_bindcred(struct rpc_task *task, struct rpc_cred *cred, int flags)
{
+ struct rpc_rqst *req = task->tk_rqstp;
+ struct rpc_cred *new;
int lookupflags = 0;
if (flags & RPC_TASK_ASYNC)
lookupflags |= RPCAUTH_LOOKUP_NEW;
if (cred != NULL)
- cred->cr_ops->crbind(task, cred, lookupflags);
+ new = cred->cr_ops->crbind(task, cred, lookupflags);
else if (flags & RPC_TASK_ROOTCREDS)
- rpcauth_bind_root_cred(task, lookupflags);
+ new = rpcauth_bind_root_cred(task, lookupflags);
else
- rpcauth_bind_new_cred(task, lookupflags);
+ new = rpcauth_bind_new_cred(task, lookupflags);
+ if (IS_ERR(new))
+ return PTR_ERR(new);
+ if (req->rq_cred != NULL)
+ put_rpccred(req->rq_cred);
+ req->rq_cred = new;
+ return 0;
}
void
@@ -484,22 +536,10 @@ out_nodestroy:
}
EXPORT_SYMBOL_GPL(put_rpccred);
-void
-rpcauth_unbindcred(struct rpc_task *task)
-{
- struct rpc_cred *cred = task->tk_msg.rpc_cred;
-
- dprintk("RPC: %5u releasing %s cred %p\n",
- task->tk_pid, cred->cr_auth->au_ops->au_name, cred);
-
- put_rpccred(cred);
- task->tk_msg.rpc_cred = NULL;
-}
-
__be32 *
rpcauth_marshcred(struct rpc_task *task, __be32 *p)
{
- struct rpc_cred *cred = task->tk_msg.rpc_cred;
+ struct rpc_cred *cred = task->tk_rqstp->rq_cred;
dprintk("RPC: %5u marshaling %s cred %p\n",
task->tk_pid, cred->cr_auth->au_ops->au_name, cred);
@@ -510,7 +550,7 @@ rpcauth_marshcred(struct rpc_task *task, __be32 *p)
__be32 *
rpcauth_checkverf(struct rpc_task *task, __be32 *p)
{
- struct rpc_cred *cred = task->tk_msg.rpc_cred;
+ struct rpc_cred *cred = task->tk_rqstp->rq_cred;
dprintk("RPC: %5u validating %s cred %p\n",
task->tk_pid, cred->cr_auth->au_ops->au_name, cred);
@@ -522,7 +562,7 @@ int
rpcauth_wrap_req(struct rpc_task *task, kxdrproc_t encode, void *rqstp,
__be32 *data, void *obj)
{
- struct rpc_cred *cred = task->tk_msg.rpc_cred;
+ struct rpc_cred *cred = task->tk_rqstp->rq_cred;
dprintk("RPC: %5u using %s cred %p to wrap rpc data\n",
task->tk_pid, cred->cr_ops->cr_name, cred);
@@ -536,7 +576,7 @@ int
rpcauth_unwrap_resp(struct rpc_task *task, kxdrproc_t decode, void *rqstp,
__be32 *data, void *obj)
{
- struct rpc_cred *cred = task->tk_msg.rpc_cred;
+ struct rpc_cred *cred = task->tk_rqstp->rq_cred;
dprintk("RPC: %5u using %s cred %p to unwrap rpc data\n",
task->tk_pid, cred->cr_ops->cr_name, cred);
@@ -550,13 +590,21 @@ rpcauth_unwrap_resp(struct rpc_task *task, kxdrproc_t decode, void *rqstp,
int
rpcauth_refreshcred(struct rpc_task *task)
{
- struct rpc_cred *cred = task->tk_msg.rpc_cred;
+ struct rpc_cred *cred = task->tk_rqstp->rq_cred;
int err;
+ cred = task->tk_rqstp->rq_cred;
+ if (cred == NULL) {
+ err = rpcauth_bindcred(task, task->tk_msg.rpc_cred, task->tk_flags);
+ if (err < 0)
+ goto out;
+ cred = task->tk_rqstp->rq_cred;
+ };
dprintk("RPC: %5u refreshing %s cred %p\n",
task->tk_pid, cred->cr_auth->au_ops->au_name, cred);
err = cred->cr_ops->crrefresh(task);
+out:
if (err < 0)
task->tk_status = err;
return err;
@@ -565,7 +613,7 @@ rpcauth_refreshcred(struct rpc_task *task)
void
rpcauth_invalcred(struct rpc_task *task)
{
- struct rpc_cred *cred = task->tk_msg.rpc_cred;
+ struct rpc_cred *cred = task->tk_rqstp->rq_cred;
dprintk("RPC: %5u invalidating %s cred %p\n",
task->tk_pid, cred->cr_auth->au_ops->au_name, cred);
@@ -576,7 +624,7 @@ rpcauth_invalcred(struct rpc_task *task)
int
rpcauth_uptodatecred(struct rpc_task *task)
{
- struct rpc_cred *cred = task->tk_msg.rpc_cred;
+ struct rpc_cred *cred = task->tk_rqstp->rq_cred;
return cred == NULL ||
test_bit(RPCAUTH_CRED_UPTODATE, &cred->cr_flags) != 0;
@@ -587,14 +635,27 @@ static struct shrinker rpc_cred_shrinker = {
.seeks = DEFAULT_SEEKS,
};
-void __init rpcauth_init_module(void)
+int __init rpcauth_init_module(void)
{
- rpc_init_authunix();
- rpc_init_generic_auth();
+ int err;
+
+ err = rpc_init_authunix();
+ if (err < 0)
+ goto out1;
+ err = rpc_init_generic_auth();
+ if (err < 0)
+ goto out2;
register_shrinker(&rpc_cred_shrinker);
+ return 0;
+out2:
+ rpc_destroy_authunix();
+out1:
+ return err;
}
void __exit rpcauth_remove_module(void)
{
+ rpc_destroy_authunix();
+ rpc_destroy_generic_auth();
unregister_shrinker(&rpc_cred_shrinker);
}
diff --git a/net/sunrpc/auth_generic.c b/net/sunrpc/auth_generic.c
index 8f623b0f03d..43162bb3b78 100644
--- a/net/sunrpc/auth_generic.c
+++ b/net/sunrpc/auth_generic.c
@@ -27,7 +27,6 @@ struct generic_cred {
};
static struct rpc_auth generic_auth;
-static struct rpc_cred_cache generic_cred_cache;
static const struct rpc_credops generic_credops;
/*
@@ -55,18 +54,13 @@ struct rpc_cred *rpc_lookup_machine_cred(void)
}
EXPORT_SYMBOL_GPL(rpc_lookup_machine_cred);
-static void
-generic_bind_cred(struct rpc_task *task, struct rpc_cred *cred, int lookupflags)
+static struct rpc_cred *generic_bind_cred(struct rpc_task *task,
+ struct rpc_cred *cred, int lookupflags)
{
struct rpc_auth *auth = task->tk_client->cl_auth;
struct auth_cred *acred = &container_of(cred, struct generic_cred, gc_base)->acred;
- struct rpc_cred *ret;
- ret = auth->au_ops->lookup_cred(auth, acred, lookupflags);
- if (!IS_ERR(ret))
- task->tk_msg.rpc_cred = ret;
- else
- task->tk_status = PTR_ERR(ret);
+ return auth->au_ops->lookup_cred(auth, acred, lookupflags);
}
/*
@@ -159,20 +153,16 @@ out_nomatch:
return 0;
}
-void __init rpc_init_generic_auth(void)
+int __init rpc_init_generic_auth(void)
{
- spin_lock_init(&generic_cred_cache.lock);
+ return rpcauth_init_credcache(&generic_auth);
}
void __exit rpc_destroy_generic_auth(void)
{
- rpcauth_clear_credcache(&generic_cred_cache);
+ rpcauth_destroy_credcache(&generic_auth);
}
-static struct rpc_cred_cache generic_cred_cache = {
- {{ NULL, },},
-};
-
static const struct rpc_authops generic_auth_ops = {
.owner = THIS_MODULE,
.au_name = "Generic",
@@ -183,7 +173,6 @@ static const struct rpc_authops generic_auth_ops = {
static struct rpc_auth generic_auth = {
.au_ops = &generic_auth_ops,
.au_count = ATOMIC_INIT(0),
- .au_credcache = &generic_cred_cache,
};
static const struct rpc_credops generic_credops = {
diff --git a/net/sunrpc/auth_gss/auth_gss.c b/net/sunrpc/auth_gss/auth_gss.c
index 8da2a0e6857..dcfc66bab2b 100644
--- a/net/sunrpc/auth_gss/auth_gss.c
+++ b/net/sunrpc/auth_gss/auth_gss.c
@@ -373,7 +373,7 @@ gss_handle_downcall_result(struct gss_cred *gss_cred, struct gss_upcall_msg *gss
static void
gss_upcall_callback(struct rpc_task *task)
{
- struct gss_cred *gss_cred = container_of(task->tk_msg.rpc_cred,
+ struct gss_cred *gss_cred = container_of(task->tk_rqstp->rq_cred,
struct gss_cred, gc_base);
struct gss_upcall_msg *gss_msg = gss_cred->gc_upcall;
struct inode *inode = &gss_msg->inode->vfs_inode;
@@ -502,7 +502,7 @@ static void warn_gssd(void)
static inline int
gss_refresh_upcall(struct rpc_task *task)
{
- struct rpc_cred *cred = task->tk_msg.rpc_cred;
+ struct rpc_cred *cred = task->tk_rqstp->rq_cred;
struct gss_auth *gss_auth = container_of(cred->cr_auth,
struct gss_auth, rpc_auth);
struct gss_cred *gss_cred = container_of(cred,
@@ -928,6 +928,7 @@ gss_do_free_ctx(struct gss_cl_ctx *ctx)
{
dprintk("RPC: gss_free_ctx\n");
+ gss_delete_sec_context(&ctx->gc_gss_ctx);
kfree(ctx->gc_wire_ctx.data);
kfree(ctx);
}
@@ -942,13 +943,7 @@ gss_free_ctx_callback(struct rcu_head *head)
static void
gss_free_ctx(struct gss_cl_ctx *ctx)
{
- struct gss_ctx *gc_gss_ctx;
-
- gc_gss_ctx = rcu_dereference(ctx->gc_gss_ctx);
- rcu_assign_pointer(ctx->gc_gss_ctx, NULL);
call_rcu(&ctx->gc_rcu, gss_free_ctx_callback);
- if (gc_gss_ctx)
- gss_delete_sec_context(&gc_gss_ctx);
}
static void
@@ -1064,12 +1059,12 @@ out:
static __be32 *
gss_marshal(struct rpc_task *task, __be32 *p)
{
- struct rpc_cred *cred = task->tk_msg.rpc_cred;
+ struct rpc_rqst *req = task->tk_rqstp;
+ struct rpc_cred *cred = req->rq_cred;
struct gss_cred *gss_cred = container_of(cred, struct gss_cred,
gc_base);
struct gss_cl_ctx *ctx = gss_cred_get_ctx(cred);
__be32 *cred_len;
- struct rpc_rqst *req = task->tk_rqstp;
u32 maj_stat = 0;
struct xdr_netobj mic;
struct kvec iov;
@@ -1119,7 +1114,7 @@ out_put_ctx:
static int gss_renew_cred(struct rpc_task *task)
{
- struct rpc_cred *oldcred = task->tk_msg.rpc_cred;
+ struct rpc_cred *oldcred = task->tk_rqstp->rq_cred;
struct gss_cred *gss_cred = container_of(oldcred,
struct gss_cred,
gc_base);
@@ -1133,7 +1128,7 @@ static int gss_renew_cred(struct rpc_task *task)
new = gss_lookup_cred(auth, &acred, RPCAUTH_LOOKUP_NEW);
if (IS_ERR(new))
return PTR_ERR(new);
- task->tk_msg.rpc_cred = new;
+ task->tk_rqstp->rq_cred = new;
put_rpccred(oldcred);
return 0;
}
@@ -1161,7 +1156,7 @@ static int gss_cred_is_negative_entry(struct rpc_cred *cred)
static int
gss_refresh(struct rpc_task *task)
{
- struct rpc_cred *cred = task->tk_msg.rpc_cred;
+ struct rpc_cred *cred = task->tk_rqstp->rq_cred;
int ret = 0;
if (gss_cred_is_negative_entry(cred))
@@ -1172,7 +1167,7 @@ gss_refresh(struct rpc_task *task)
ret = gss_renew_cred(task);
if (ret < 0)
goto out;
- cred = task->tk_msg.rpc_cred;
+ cred = task->tk_rqstp->rq_cred;
}
if (test_bit(RPCAUTH_CRED_NEW, &cred->cr_flags))
@@ -1191,7 +1186,7 @@ gss_refresh_null(struct rpc_task *task)
static __be32 *
gss_validate(struct rpc_task *task, __be32 *p)
{
- struct rpc_cred *cred = task->tk_msg.rpc_cred;
+ struct rpc_cred *cred = task->tk_rqstp->rq_cred;
struct gss_cl_ctx *ctx = gss_cred_get_ctx(cred);
__be32 seq;
struct kvec iov;
@@ -1400,7 +1395,7 @@ static int
gss_wrap_req(struct rpc_task *task,
kxdrproc_t encode, void *rqstp, __be32 *p, void *obj)
{
- struct rpc_cred *cred = task->tk_msg.rpc_cred;
+ struct rpc_cred *cred = task->tk_rqstp->rq_cred;
struct gss_cred *gss_cred = container_of(cred, struct gss_cred,
gc_base);
struct gss_cl_ctx *ctx = gss_cred_get_ctx(cred);
@@ -1503,7 +1498,7 @@ static int
gss_unwrap_resp(struct rpc_task *task,
kxdrproc_t decode, void *rqstp, __be32 *p, void *obj)
{
- struct rpc_cred *cred = task->tk_msg.rpc_cred;
+ struct rpc_cred *cred = task->tk_rqstp->rq_cred;
struct gss_cred *gss_cred = container_of(cred, struct gss_cred,
gc_base);
struct gss_cl_ctx *ctx = gss_cred_get_ctx(cred);
diff --git a/net/sunrpc/auth_null.c b/net/sunrpc/auth_null.c
index 1db618f56ec..a5c36c01707 100644
--- a/net/sunrpc/auth_null.c
+++ b/net/sunrpc/auth_null.c
@@ -75,7 +75,7 @@ nul_marshal(struct rpc_task *task, __be32 *p)
static int
nul_refresh(struct rpc_task *task)
{
- set_bit(RPCAUTH_CRED_UPTODATE, &task->tk_msg.rpc_cred->cr_flags);
+ set_bit(RPCAUTH_CRED_UPTODATE, &task->tk_rqstp->rq_cred->cr_flags);
return 0;
}
diff --git a/net/sunrpc/auth_unix.c b/net/sunrpc/auth_unix.c
index aac2f8b4ee2..4cb70dc6e7a 100644
--- a/net/sunrpc/auth_unix.c
+++ b/net/sunrpc/auth_unix.c
@@ -29,7 +29,6 @@ struct unx_cred {
#endif
static struct rpc_auth unix_auth;
-static struct rpc_cred_cache unix_cred_cache;
static const struct rpc_credops unix_credops;
static struct rpc_auth *
@@ -141,7 +140,7 @@ static __be32 *
unx_marshal(struct rpc_task *task, __be32 *p)
{
struct rpc_clnt *clnt = task->tk_client;
- struct unx_cred *cred = container_of(task->tk_msg.rpc_cred, struct unx_cred, uc_base);
+ struct unx_cred *cred = container_of(task->tk_rqstp->rq_cred, struct unx_cred, uc_base);
__be32 *base, *hold;
int i;
@@ -174,7 +173,7 @@ unx_marshal(struct rpc_task *task, __be32 *p)
static int
unx_refresh(struct rpc_task *task)
{
- set_bit(RPCAUTH_CRED_UPTODATE, &task->tk_msg.rpc_cred->cr_flags);
+ set_bit(RPCAUTH_CRED_UPTODATE, &task->tk_rqstp->rq_cred->cr_flags);
return 0;
}
@@ -197,15 +196,20 @@ unx_validate(struct rpc_task *task, __be32 *p)
printk("RPC: giant verf size: %u\n", size);
return NULL;
}
- task->tk_msg.rpc_cred->cr_auth->au_rslack = (size >> 2) + 2;
+ task->tk_rqstp->rq_cred->cr_auth->au_rslack = (size >> 2) + 2;
p += (size >> 2);
return p;
}
-void __init rpc_init_authunix(void)
+int __init rpc_init_authunix(void)
{
- spin_lock_init(&unix_cred_cache.lock);
+ return rpcauth_init_credcache(&unix_auth);
+}
+
+void rpc_destroy_authunix(void)
+{
+ rpcauth_destroy_credcache(&unix_auth);
}
const struct rpc_authops authunix_ops = {
@@ -219,17 +223,12 @@ const struct rpc_authops authunix_ops = {
};
static
-struct rpc_cred_cache unix_cred_cache = {
-};
-
-static
struct rpc_auth unix_auth = {
.au_cslack = UNX_WRITESLACK,
.au_rslack = 2, /* assume AUTH_NULL verf */
.au_ops = &authunix_ops,
.au_flavor = RPC_AUTH_UNIX,
.au_count = ATOMIC_INIT(0),
- .au_credcache = &unix_cred_cache,
};
static
diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index 756fc324db9..2388d83b68f 100644
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -414,6 +414,35 @@ out_no_clnt:
EXPORT_SYMBOL_GPL(rpc_clone_client);
/*
+ * Kill all tasks for the given client.
+ * XXX: kill their descendants as well?
+ */
+void rpc_killall_tasks(struct rpc_clnt *clnt)
+{
+ struct rpc_task *rovr;
+
+
+ if (list_empty(&clnt->cl_tasks))
+ return;
+ dprintk("RPC: killing all tasks for client %p\n", clnt);
+ /*
+ * Spin lock all_tasks to prevent changes...
+ */
+ spin_lock(&clnt->cl_lock);
+ list_for_each_entry(rovr, &clnt->cl_tasks, tk_task) {
+ if (!RPC_IS_ACTIVATED(rovr))
+ continue;
+ if (!(rovr->tk_flags & RPC_TASK_KILLED)) {
+ rovr->tk_flags |= RPC_TASK_KILLED;
+ rpc_exit(rovr, -EIO);
+ rpc_wake_up_queued_task(rovr->tk_waitqueue, rovr);
+ }
+ }
+ spin_unlock(&clnt->cl_lock);
+}
+EXPORT_SYMBOL_GPL(rpc_killall_tasks);
+
+/*
* Properly shut down an RPC client, terminating all outstanding
* requests.
*/
@@ -538,6 +567,49 @@ out:
}
EXPORT_SYMBOL_GPL(rpc_bind_new_program);
+void rpc_task_release_client(struct rpc_task *task)
+{
+ struct rpc_clnt *clnt = task->tk_client;
+
+ if (clnt != NULL) {
+ /* Remove from client task list */
+ spin_lock(&clnt->cl_lock);
+ list_del(&task->tk_task);
+ spin_unlock(&clnt->cl_lock);
+ task->tk_client = NULL;
+
+ rpc_release_client(clnt);
+ }
+}
+
+static
+void rpc_task_set_client(struct rpc_task *task, struct rpc_clnt *clnt)
+{
+ if (clnt != NULL) {
+ rpc_task_release_client(task);
+ task->tk_client = clnt;
+ kref_get(&clnt->cl_kref);
+ if (clnt->cl_softrtry)
+ task->tk_flags |= RPC_TASK_SOFT;
+ /* Add to the client's list of all tasks */
+ spin_lock(&clnt->cl_lock);
+ list_add_tail(&task->tk_task, &clnt->cl_tasks);
+ spin_unlock(&clnt->cl_lock);
+ }
+}
+
+static void
+rpc_task_set_rpc_message(struct rpc_task *task, const struct rpc_message *msg)
+{
+ if (msg != NULL) {
+ task->tk_msg.rpc_proc = msg->rpc_proc;
+ task->tk_msg.rpc_argp = msg->rpc_argp;
+ task->tk_msg.rpc_resp = msg->rpc_resp;
+ if (msg->rpc_cred != NULL)
+ task->tk_msg.rpc_cred = get_rpccred(msg->rpc_cred);
+ }
+}
+
/*
* Default callback for async RPC calls
*/
@@ -562,6 +634,18 @@ struct rpc_task *rpc_run_task(const struct rpc_task_setup *task_setup_data)
if (IS_ERR(task))
goto out;
+ rpc_task_set_client(task, task_setup_data->rpc_client);
+ rpc_task_set_rpc_message(task, task_setup_data->rpc_message);
+
+ if (task->tk_status != 0) {
+ int ret = task->tk_status;
+ rpc_put_task(task);
+ return ERR_PTR(ret);
+ }
+
+ if (task->tk_action == NULL)
+ rpc_call_start(task);
+
atomic_inc(&task->tk_count);
rpc_execute(task);
out:
@@ -756,12 +840,13 @@ EXPORT_SYMBOL_GPL(rpc_force_rebind);
* Restart an (async) RPC call from the call_prepare state.
* Usually called from within the exit handler.
*/
-void
+int
rpc_restart_call_prepare(struct rpc_task *task)
{
if (RPC_ASSASSINATED(task))
- return;
+ return 0;
task->tk_action = rpc_prepare_task;
+ return 1;
}
EXPORT_SYMBOL_GPL(rpc_restart_call_prepare);
@@ -769,13 +854,13 @@ EXPORT_SYMBOL_GPL(rpc_restart_call_prepare);
* Restart an (async) RPC call. Usually called from within the
* exit handler.
*/
-void
+int
rpc_restart_call(struct rpc_task *task)
{
if (RPC_ASSASSINATED(task))
- return;
-
+ return 0;
task->tk_action = call_start;
+ return 1;
}
EXPORT_SYMBOL_GPL(rpc_restart_call);
@@ -824,11 +909,6 @@ call_reserve(struct rpc_task *task)
{
dprint_status(task);
- if (!rpcauth_uptodatecred(task)) {
- task->tk_action = call_refresh;
- return;
- }
-
task->tk_status = 0;
task->tk_action = call_reserveresult;
xprt_reserve(task);
@@ -892,7 +972,7 @@ call_reserveresult(struct rpc_task *task)
static void
call_allocate(struct rpc_task *task)
{
- unsigned int slack = task->tk_msg.rpc_cred->cr_auth->au_cslack;
+ unsigned int slack = task->tk_client->cl_auth->au_cslack;
struct rpc_rqst *req = task->tk_rqstp;
struct rpc_xprt *xprt = task->tk_xprt;
struct rpc_procinfo *proc = task->tk_msg.rpc_proc;
@@ -900,7 +980,7 @@ call_allocate(struct rpc_task *task)
dprint_status(task);
task->tk_status = 0;
- task->tk_action = call_bind;
+ task->tk_action = call_refresh;
if (req->rq_buffer)
return;
@@ -937,6 +1017,47 @@ call_allocate(struct rpc_task *task)
rpc_exit(task, -ERESTARTSYS);
}
+/*
+ * 2a. Bind and/or refresh the credentials
+ */
+static void
+call_refresh(struct rpc_task *task)
+{
+ dprint_status(task);
+
+ task->tk_action = call_refreshresult;
+ task->tk_status = 0;
+ task->tk_client->cl_stats->rpcauthrefresh++;
+ rpcauth_refreshcred(task);
+}
+
+/*
+ * 2b. Process the results of a credential refresh
+ */
+static void
+call_refreshresult(struct rpc_task *task)
+{
+ int status = task->tk_status;
+
+ dprint_status(task);
+
+ task->tk_status = 0;
+ task->tk_action = call_bind;
+ if (status >= 0 && rpcauth_uptodatecred(task))
+ return;
+ switch (status) {
+ case -EACCES:
+ rpc_exit(task, -EACCES);
+ return;
+ case -ENOMEM:
+ rpc_exit(task, -ENOMEM);
+ return;
+ case -ETIMEDOUT:
+ rpc_delay(task, 3*HZ);
+ }
+ task->tk_action = call_refresh;
+}
+
static inline int
rpc_task_need_encode(struct rpc_task *task)
{
@@ -1472,43 +1593,6 @@ out_retry:
}
}
-/*
- * 8. Refresh the credentials if rejected by the server
- */
-static void
-call_refresh(struct rpc_task *task)
-{
- dprint_status(task);
-
- task->tk_action = call_refreshresult;
- task->tk_status = 0;
- task->tk_client->cl_stats->rpcauthrefresh++;
- rpcauth_refreshcred(task);
-}
-
-/*
- * 8a. Process the results of a credential refresh
- */
-static void
-call_refreshresult(struct rpc_task *task)
-{
- int status = task->tk_status;
-
- dprint_status(task);
-
- task->tk_status = 0;
- task->tk_action = call_reserve;
- if (status >= 0 && rpcauth_uptodatecred(task))
- return;
- if (status == -EACCES) {
- rpc_exit(task, -EACCES);
- return;
- }
- task->tk_action = call_refresh;
- if (status != -ETIMEDOUT)
- rpc_delay(task, 3*HZ);
-}
-
static __be32 *
rpc_encode_header(struct rpc_task *task)
{
diff --git a/net/sunrpc/sched.c b/net/sunrpc/sched.c
index 4a843b883b8..cace6049e4a 100644
--- a/net/sunrpc/sched.c
+++ b/net/sunrpc/sched.c
@@ -246,17 +246,8 @@ static inline void rpc_task_set_debuginfo(struct rpc_task *task)
static void rpc_set_active(struct rpc_task *task)
{
- struct rpc_clnt *clnt;
- if (test_and_set_bit(RPC_TASK_ACTIVE, &task->tk_runstate) != 0)
- return;
rpc_task_set_debuginfo(task);
- /* Add to global list of all tasks */
- clnt = task->tk_client;
- if (clnt != NULL) {
- spin_lock(&clnt->cl_lock);
- list_add_tail(&task->tk_task, &clnt->cl_tasks);
- spin_unlock(&clnt->cl_lock);
- }
+ set_bit(RPC_TASK_ACTIVE, &task->tk_runstate);
}
/*
@@ -319,11 +310,6 @@ static void __rpc_sleep_on(struct rpc_wait_queue *q, struct rpc_task *task,
dprintk("RPC: %5u sleep_on(queue \"%s\" time %lu)\n",
task->tk_pid, rpc_qname(q), jiffies);
- if (!RPC_IS_ASYNC(task) && !RPC_IS_ACTIVATED(task)) {
- printk(KERN_ERR "RPC: Inactive synchronous task put to sleep!\n");
- return;
- }
-
__rpc_add_wait_queue(q, task);
BUG_ON(task->tk_callback != NULL);
@@ -334,8 +320,8 @@ static void __rpc_sleep_on(struct rpc_wait_queue *q, struct rpc_task *task,
void rpc_sleep_on(struct rpc_wait_queue *q, struct rpc_task *task,
rpc_action action)
{
- /* Mark the task as being activated if so needed */
- rpc_set_active(task);
+ /* We shouldn't ever put an inactive task to sleep */
+ BUG_ON(!RPC_IS_ACTIVATED(task));
/*
* Protect the queue operations.
@@ -406,14 +392,6 @@ void rpc_wake_up_queued_task(struct rpc_wait_queue *queue, struct rpc_task *task
EXPORT_SYMBOL_GPL(rpc_wake_up_queued_task);
/*
- * Wake up the specified task
- */
-static void rpc_wake_up_task(struct rpc_task *task)
-{
- rpc_wake_up_queued_task(task->tk_waitqueue, task);
-}
-
-/*
* Wake up the next task on a priority queue.
*/
static struct rpc_task * __rpc_wake_up_next_priority(struct rpc_wait_queue *queue)
@@ -600,7 +578,15 @@ void rpc_exit_task(struct rpc_task *task)
}
}
}
-EXPORT_SYMBOL_GPL(rpc_exit_task);
+
+void rpc_exit(struct rpc_task *task, int status)
+{
+ task->tk_status = status;
+ task->tk_action = rpc_exit_task;
+ if (RPC_IS_QUEUED(task))
+ rpc_wake_up_queued_task(task->tk_waitqueue, task);
+}
+EXPORT_SYMBOL_GPL(rpc_exit);
void rpc_release_calldata(const struct rpc_call_ops *ops, void *calldata)
{
@@ -690,7 +676,6 @@ static void __rpc_execute(struct rpc_task *task)
dprintk("RPC: %5u got signal\n", task->tk_pid);
task->tk_flags |= RPC_TASK_KILLED;
rpc_exit(task, -ERESTARTSYS);
- rpc_wake_up_task(task);
}
rpc_set_running(task);
dprintk("RPC: %5u sync task resuming\n", task->tk_pid);
@@ -714,8 +699,9 @@ static void __rpc_execute(struct rpc_task *task)
void rpc_execute(struct rpc_task *task)
{
rpc_set_active(task);
- rpc_set_running(task);
- __rpc_execute(task);
+ rpc_make_runnable(task);
+ if (!RPC_IS_ASYNC(task))
+ __rpc_execute(task);
}
static void rpc_async_schedule(struct work_struct *work)
@@ -808,26 +794,9 @@ static void rpc_init_task(struct rpc_task *task, const struct rpc_task_setup *ta
/* Initialize workqueue for async tasks */
task->tk_workqueue = task_setup_data->workqueue;
- task->tk_client = task_setup_data->rpc_client;
- if (task->tk_client != NULL) {
- kref_get(&task->tk_client->cl_kref);
- if (task->tk_client->cl_softrtry)
- task->tk_flags |= RPC_TASK_SOFT;
- }
-
if (task->tk_ops->rpc_call_prepare != NULL)
task->tk_action = rpc_prepare_task;
- if (task_setup_data->rpc_message != NULL) {
- task->tk_msg.rpc_proc = task_setup_data->rpc_message->rpc_proc;
- task->tk_msg.rpc_argp = task_setup_data->rpc_message->rpc_argp;
- task->tk_msg.rpc_resp = task_setup_data->rpc_message->rpc_resp;
- /* Bind the user cred */
- rpcauth_bindcred(task, task_setup_data->rpc_message->rpc_cred, task_setup_data->flags);
- if (task->tk_action == NULL)
- rpc_call_start(task);
- }
-
/* starting timestamp */
task->tk_start = ktime_get();
@@ -896,11 +865,8 @@ void rpc_put_task(struct rpc_task *task)
if (task->tk_rqstp)
xprt_release(task);
if (task->tk_msg.rpc_cred)
- rpcauth_unbindcred(task);
- if (task->tk_client) {
- rpc_release_client(task->tk_client);
- task->tk_client = NULL;
- }
+ put_rpccred(task->tk_msg.rpc_cred);
+ rpc_task_release_client(task);
if (task->tk_workqueue != NULL) {
INIT_WORK(&task->u.tk_work, rpc_async_release);
queue_work(task->tk_workqueue, &task->u.tk_work);
@@ -913,13 +879,6 @@ static void rpc_release_task(struct rpc_task *task)
{
dprintk("RPC: %5u release task\n", task->tk_pid);
- if (!list_empty(&task->tk_task)) {
- struct rpc_clnt *clnt = task->tk_client;
- /* Remove from client task list */
- spin_lock(&clnt->cl_lock);
- list_del(&task->tk_task);
- spin_unlock(&clnt->cl_lock);
- }
BUG_ON (RPC_IS_QUEUED(task));
/* Wake up anyone who is waiting for task completion */
@@ -928,35 +887,6 @@ static void rpc_release_task(struct rpc_task *task)
rpc_put_task(task);
}
-/*
- * Kill all tasks for the given client.
- * XXX: kill their descendants as well?
- */
-void rpc_killall_tasks(struct rpc_clnt *clnt)
-{
- struct rpc_task *rovr;
-
-
- if (list_empty(&clnt->cl_tasks))
- return;
- dprintk("RPC: killing all tasks for client %p\n", clnt);
- /*
- * Spin lock all_tasks to prevent changes...
- */
- spin_lock(&clnt->cl_lock);
- list_for_each_entry(rovr, &clnt->cl_tasks, tk_task) {
- if (! RPC_IS_ACTIVATED(rovr))
- continue;
- if (!(rovr->tk_flags & RPC_TASK_KILLED)) {
- rovr->tk_flags |= RPC_TASK_KILLED;
- rpc_exit(rovr, -EIO);
- rpc_wake_up_task(rovr);
- }
- }
- spin_unlock(&clnt->cl_lock);
-}
-EXPORT_SYMBOL_GPL(rpc_killall_tasks);
-
int rpciod_up(void)
{
return try_module_get(THIS_MODULE) ? 0 : -EINVAL;
diff --git a/net/sunrpc/sunrpc_syms.c b/net/sunrpc/sunrpc_syms.c
index f438347d817..34b58f9e704 100644
--- a/net/sunrpc/sunrpc_syms.c
+++ b/net/sunrpc/sunrpc_syms.c
@@ -33,10 +33,11 @@ init_sunrpc(void)
if (err)
goto out;
err = rpc_init_mempool();
- if (err) {
- unregister_rpc_pipefs();
- goto out;
- }
+ if (err)
+ goto out2;
+ err = rpcauth_init_module();
+ if (err)
+ goto out3;
#ifdef RPC_DEBUG
rpc_register_sysctl();
#endif
@@ -47,7 +48,11 @@ init_sunrpc(void)
cache_register(&unix_gid_cache);
svc_init_xprt_sock(); /* svc sock transport */
init_socket_xprt(); /* clnt sock transport */
- rpcauth_init_module();
+ return 0;
+out3:
+ rpc_destroy_mempool();
+out2:
+ unregister_rpc_pipefs();
out:
return err;
}
diff --git a/net/sunrpc/xprt.c b/net/sunrpc/xprt.c
index dcd0132396b..970fb00f388 100644
--- a/net/sunrpc/xprt.c
+++ b/net/sunrpc/xprt.c
@@ -1032,6 +1032,8 @@ void xprt_release(struct rpc_task *task)
spin_unlock_bh(&xprt->transport_lock);
if (req->rq_buffer)
xprt->ops->buf_free(req->rq_buffer);
+ if (req->rq_cred != NULL)
+ put_rpccred(req->rq_cred);
task->tk_rqstp = NULL;
if (req->rq_release_snd_buf)
req->rq_release_snd_buf(req);
@@ -1129,6 +1131,7 @@ static void xprt_destroy(struct kref *kref)
rpc_destroy_wait_queue(&xprt->sending);
rpc_destroy_wait_queue(&xprt->resend);
rpc_destroy_wait_queue(&xprt->backlog);
+ cancel_work_sync(&xprt->task_cleanup);
/*
* Tear down transport state and free the rpc_xprt
*/