* '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
...
If unsure, say N.
config NFS_V4
- bool "NFS client support for NFS version 4 (EXPERIMENTAL)"
- depends on NFS_FS && EXPERIMENTAL
+ bool "NFS client support for NFS version 4"
+ depends on NFS_FS
select RPCSEC_GSS_KRB5
help
This option enables support for version 4 of the NFS protocol
space programs which can be found in the Linux nfs-utils package,
available from http://linux-nfs.org/.
- If unsure, say N.
+ If unsure, say Y.
config NFS_V4_1
- bool "NFS client support for NFSv4.1 (DEVELOPER ONLY)"
+ bool "NFS client support for NFSv4.1 (EXPERIMENTAL)"
depends on NFS_V4 && EXPERIMENTAL
help
This option enables support for minor version 1 of the NFSv4 protocol
(draft-ietf-nfsv4-minorversion1) in the kernel's NFS client.
- Unless you're an NFS developer, say N.
+ If unsure, say N.
config ROOT_NFS
bool "Root file system on NFS"
if (inode == NULL)
goto out_putclient;
nfsi = NFS_I(inode);
- down_read(&nfsi->rwsem);
- delegation = nfsi->delegation;
+ rcu_read_lock();
+ delegation = rcu_dereference(nfsi->delegation);
if (delegation == NULL || (delegation->type & FMODE_WRITE) == 0)
goto out_iput;
res->size = i_size_read(inode);
args->bitmap[1];
res->status = 0;
out_iput:
- up_read(&nfsi->rwsem);
+ rcu_read_unlock();
iput(inode);
out_putclient:
nfs_put_client(clp);
return res->status;
}
-static int (*nfs_validate_delegation_stateid(struct nfs_client *clp))(struct nfs_delegation *, const nfs4_stateid *)
-{
-#if defined(CONFIG_NFS_V4_1)
- if (clp->cl_minorversion > 0)
- return nfs41_validate_delegation_stateid;
-#endif
- return nfs4_validate_delegation_stateid;
-}
-
-
__be32 nfs4_callback_recall(struct cb_recallargs *args, void *dummy)
{
struct nfs_client *clp;
inode = nfs_delegation_find_inode(clp, &args->fh);
if (inode != NULL) {
/* Set up a helper thread to actually return the delegation */
- switch (nfs_async_inode_return_delegation(inode, &args->stateid,
- nfs_validate_delegation_stateid(clp))) {
+ switch (nfs_async_inode_return_delegation(inode, &args->stateid)) {
case 0:
res = 0;
break;
clp->cl_boot_time = CURRENT_TIME;
clp->cl_state = 1 << NFS4CLNT_LEASE_EXPIRED;
clp->cl_minorversion = cl_init->minorversion;
+ clp->cl_mvops = nfs_v4_minor_ops[cl_init->minorversion];
#endif
cred = rpc_lookup_machine_cred();
if (!IS_ERR(cred))
clp->cl_session = NULL;
}
- clp->cl_call_sync = _nfs4_call_sync;
+ clp->cl_mvops = nfs_v4_minor_ops[0];
#endif /* CONFIG_NFS_V4_1 */
}
static void nfs4_destroy_callback(struct nfs_client *clp)
{
if (__test_and_clear_bit(NFS_CS_CALLBACK, &clp->cl_res_state))
- nfs_callback_down(clp->cl_minorversion);
+ nfs_callback_down(clp->cl_mvops->minor_version);
}
static void nfs4_shutdown_client(struct nfs_client *clp)
return error;
}
- error = nfs_callback_up(clp->cl_minorversion,
+ error = nfs_callback_up(clp->cl_mvops->minor_version,
clp->cl_rpcclient->cl_xprt);
if (error < 0) {
dprintk("%s: failed to start callback. Error = %d\n",
*/
static int nfs4_init_client_minor_version(struct nfs_client *clp)
{
- clp->cl_call_sync = _nfs4_call_sync;
-
#if defined(CONFIG_NFS_V4_1)
- if (clp->cl_minorversion) {
+ if (clp->cl_mvops->minor_version) {
struct nfs4_session *session = NULL;
/*
* Create the session and mark it expired.
return -ENOMEM;
clp->cl_session = session;
- clp->cl_call_sync = _nfs4_call_sync_session;
+ /*
+ * The create session reply races with the server back
+ * channel probe. Mark the client NFS_CS_SESSION_INITING
+ * so that the client back channel can find the
+ * nfs_client struct
+ */
+ clp->cl_cons_state = NFS_CS_SESSION_INITING;
}
#endif /* CONFIG_NFS_V4_1 */
data->authflavor,
parent_server->client->cl_xprt->prot,
parent_server->client->cl_timeout,
- parent_client->cl_minorversion);
+ parent_client->cl_mvops->minor_version);
if (error < 0)
goto error;
return status;
}
-/* Sync all data to disk upon delegation return */
-static void nfs_msync_inode(struct inode *inode)
-{
- filemap_fdatawrite(inode->i_mapping);
- nfs_wb_all(inode);
- filemap_fdatawait(inode->i_mapping);
-}
-
/*
* Basic procedure for returning a delegation to the server
*/
delegation = nfs_detach_delegation_locked(nfsi, NULL, clp);
spin_unlock(&clp->cl_lock);
if (delegation != NULL) {
- nfs_msync_inode(inode);
+ nfs_wb_all(inode);
err = __nfs_inode_return_delegation(inode, delegation, 1);
}
}
/*
* Asynchronous delegation recall!
*/
-int nfs_async_inode_return_delegation(struct inode *inode, const nfs4_stateid *stateid,
- int (*validate_stateid)(struct nfs_delegation *delegation,
- const nfs4_stateid *stateid))
+int nfs_async_inode_return_delegation(struct inode *inode, const nfs4_stateid *stateid)
{
struct nfs_client *clp = NFS_SERVER(inode)->nfs_client;
struct nfs_delegation *delegation;
rcu_read_lock();
delegation = rcu_dereference(NFS_I(inode)->delegation);
- if (!validate_stateid(delegation, stateid)) {
+ if (!clp->cl_mvops->validate_stateid(delegation, stateid)) {
rcu_read_unlock();
return -ENOENT;
}
int nfs_inode_set_delegation(struct inode *inode, struct rpc_cred *cred, struct nfs_openres *res);
void nfs_inode_reclaim_delegation(struct inode *inode, struct rpc_cred *cred, struct nfs_openres *res);
int nfs_inode_return_delegation(struct inode *inode);
-int nfs_async_inode_return_delegation(struct inode *inode, const nfs4_stateid *stateid,
- int (*validate_stateid)(struct nfs_delegation *delegation,
- const nfs4_stateid *stateid));
+int nfs_async_inode_return_delegation(struct inode *inode, const nfs4_stateid *stateid);
void nfs_inode_return_delegation_noreclaim(struct inode *inode);
struct inode *nfs_delegation_find_inode(struct nfs_client *clp, const struct nfs_fh *fhandle);
}
}
- /*
- * ... prune child dentries and writebacks if needed.
- */
- if (atomic_read(&old_dentry->d_count) > 1) {
- if (S_ISREG(old_inode->i_mode))
- nfs_wb_all(old_inode);
- shrink_dcache_parent(old_dentry);
- }
nfs_inode_return_delegation(old_inode);
-
if (new_inode != NULL)
nfs_inode_return_delegation(new_inode);
/* I/O parameters */
struct nfs_open_context *ctx; /* file open context info */
+ struct nfs_lock_context *l_ctx; /* Lock context info */
struct kiocb * iocb; /* controlling i/o request */
struct inode * inode; /* target file of i/o */
INIT_LIST_HEAD(&dreq->rewrite_list);
dreq->iocb = NULL;
dreq->ctx = NULL;
+ dreq->l_ctx = NULL;
spin_lock_init(&dreq->lock);
atomic_set(&dreq->io_count, 0);
dreq->count = 0;
{
struct nfs_direct_req *dreq = container_of(kref, struct nfs_direct_req, kref);
+ if (dreq->l_ctx != NULL)
+ nfs_put_lock_context(dreq->l_ctx);
if (dreq->ctx != NULL)
put_nfs_open_context(dreq->ctx);
kmem_cache_free(nfs_direct_cachep, dreq);
data->cred = msg.rpc_cred;
data->args.fh = NFS_FH(inode);
data->args.context = ctx;
+ data->args.lock_context = dreq->l_ctx;
data->args.offset = pos;
data->args.pgbase = pgbase;
data->args.pages = data->pagevec;
static ssize_t nfs_direct_read(struct kiocb *iocb, const struct iovec *iov,
unsigned long nr_segs, loff_t pos)
{
- ssize_t result = 0;
+ ssize_t result = -ENOMEM;
struct inode *inode = iocb->ki_filp->f_mapping->host;
struct nfs_direct_req *dreq;
dreq = nfs_direct_req_alloc();
- if (!dreq)
- return -ENOMEM;
+ if (dreq == NULL)
+ goto out;
dreq->inode = inode;
dreq->ctx = get_nfs_open_context(nfs_file_open_context(iocb->ki_filp));
+ dreq->l_ctx = nfs_get_lock_context(dreq->ctx);
+ if (dreq->l_ctx == NULL)
+ goto out_release;
if (!is_sync_kiocb(iocb))
dreq->iocb = iocb;
result = nfs_direct_read_schedule_iovec(dreq, iov, nr_segs, pos);
if (!result)
result = nfs_direct_wait(dreq);
+out_release:
nfs_direct_req_release(dreq);
-
+out:
return result;
}
data->args.offset = 0;
data->args.count = 0;
data->args.context = dreq->ctx;
+ data->args.lock_context = dreq->l_ctx;
data->res.count = 0;
data->res.fattr = &data->fattr;
data->res.verf = &data->verf;
data->cred = msg.rpc_cred;
data->args.fh = NFS_FH(inode);
data->args.context = ctx;
+ data->args.lock_context = dreq->l_ctx;
data->args.offset = pos;
data->args.pgbase = pgbase;
data->args.pages = data->pagevec;
unsigned long nr_segs, loff_t pos,
size_t count)
{
- ssize_t result = 0;
+ ssize_t result = -ENOMEM;
struct inode *inode = iocb->ki_filp->f_mapping->host;
struct nfs_direct_req *dreq;
size_t wsize = NFS_SERVER(inode)->wsize;
dreq = nfs_direct_req_alloc();
if (!dreq)
- return -ENOMEM;
+ goto out;
nfs_alloc_commit_data(dreq);
if (dreq->commit_data == NULL || count < wsize)
dreq->inode = inode;
dreq->ctx = get_nfs_open_context(nfs_file_open_context(iocb->ki_filp));
+ dreq->l_ctx = nfs_get_lock_context(dreq->ctx);
+ if (dreq->l_ctx != NULL)
+ goto out_release;
if (!is_sync_kiocb(iocb))
dreq->iocb = iocb;
result = nfs_direct_write_schedule_iovec(dreq, iov, nr_segs, pos, sync);
if (!result)
result = nfs_direct_wait(dreq);
+out_release:
nfs_direct_req_release(dreq);
-
+out:
return result;
}
return loff;
}
-/*
- * Helper for nfs_file_flush() and nfs_file_fsync()
- *
- * Notice that it clears the NFS_CONTEXT_ERROR_WRITE before synching to
- * disk, but it retrieves and clears ctx->error after synching, despite
- * the two being set at the same time in nfs_context_set_write_error().
- * This is because the former is used to notify the _next_ call to
- * nfs_file_write() that a write error occured, and hence cause it to
- * fall back to doing a synchronous write.
- */
-static int nfs_do_fsync(struct nfs_open_context *ctx, struct inode *inode)
-{
- int have_error, status;
- int ret = 0;
-
- have_error = test_and_clear_bit(NFS_CONTEXT_ERROR_WRITE, &ctx->flags);
- status = nfs_wb_all(inode);
- have_error |= test_bit(NFS_CONTEXT_ERROR_WRITE, &ctx->flags);
- if (have_error)
- ret = xchg(&ctx->error, 0);
- if (!ret)
- ret = status;
- return ret;
-}
-
/*
* Flush all dirty pages, and check for write errors.
*/
static int
nfs_file_flush(struct file *file, fl_owner_t id)
{
- struct nfs_open_context *ctx = nfs_file_open_context(file);
struct dentry *dentry = file->f_path.dentry;
struct inode *inode = dentry->d_inode;
return 0;
/* Flush writes to the server and return any errors */
- return nfs_do_fsync(ctx, inode);
+ return vfs_fsync(file, 0);
}
static ssize_t
* Flush any dirty pages for this process, and check for write errors.
* The return status from this call provides a reliable indication of
* whether any write errors occurred for this process.
+ *
+ * Notice that it clears the NFS_CONTEXT_ERROR_WRITE before synching to
+ * disk, but it retrieves and clears ctx->error after synching, despite
+ * the two being set at the same time in nfs_context_set_write_error().
+ * This is because the former is used to notify the _next_ call to
+ * nfs_file_write() that a write error occured, and hence cause it to
+ * fall back to doing a synchronous write.
*/
static int
nfs_file_fsync(struct file *file, int datasync)
struct dentry *dentry = file->f_path.dentry;
struct nfs_open_context *ctx = nfs_file_open_context(file);
struct inode *inode = dentry->d_inode;
+ int have_error, status;
+ int ret = 0;
+
dprintk("NFS: fsync file(%s/%s) datasync %d\n",
dentry->d_parent->d_name.name, dentry->d_name.name,
datasync);
nfs_inc_stats(inode, NFSIOS_VFSFSYNC);
- return nfs_do_fsync(ctx, inode);
+ have_error = test_and_clear_bit(NFS_CONTEXT_ERROR_WRITE, &ctx->flags);
+ status = nfs_commit_inode(inode, FLUSH_SYNC);
+ have_error |= test_bit(NFS_CONTEXT_ERROR_WRITE, &ctx->flags);
+ if (have_error)
+ ret = xchg(&ctx->error, 0);
+ if (!ret)
+ ret = status;
+ return ret;
}
/*
/* Return error values for O_DSYNC and IS_SYNC() */
if (result >= 0 && nfs_need_sync_write(iocb->ki_filp, inode)) {
- int err = nfs_do_fsync(nfs_file_open_context(iocb->ki_filp), inode);
+ int err = vfs_fsync(iocb->ki_filp, 0);
if (err < 0)
result = err;
}
written = ret;
if (ret >= 0 && nfs_need_sync_write(filp, inode)) {
- int err = nfs_do_fsync(nfs_file_open_context(filp), inode);
+ int err = vfs_fsync(filp, 0);
if (err < 0)
ret = err;
}
return 0;
/* Write all dirty data */
- if (S_ISREG(inode->i_mode)) {
- filemap_write_and_wait(inode->i_mapping);
+ if (S_ISREG(inode->i_mode))
nfs_wb_all(inode);
- }
fattr = nfs_alloc_fattr();
if (fattr == NULL)
return err;
}
+static void nfs_init_lock_context(struct nfs_lock_context *l_ctx)
+{
+ atomic_set(&l_ctx->count, 1);
+ l_ctx->lockowner = current->files;
+ l_ctx->pid = current->tgid;
+ INIT_LIST_HEAD(&l_ctx->list);
+}
+
+static struct nfs_lock_context *__nfs_find_lock_context(struct nfs_open_context *ctx)
+{
+ struct nfs_lock_context *pos;
+
+ list_for_each_entry(pos, &ctx->lock_context.list, list) {
+ if (pos->lockowner != current->files)
+ continue;
+ if (pos->pid != current->tgid)
+ continue;
+ atomic_inc(&pos->count);
+ return pos;
+ }
+ return NULL;
+}
+
+struct nfs_lock_context *nfs_get_lock_context(struct nfs_open_context *ctx)
+{
+ struct nfs_lock_context *res, *new = NULL;
+ struct inode *inode = ctx->path.dentry->d_inode;
+
+ spin_lock(&inode->i_lock);
+ res = __nfs_find_lock_context(ctx);
+ if (res == NULL) {
+ spin_unlock(&inode->i_lock);
+ new = kmalloc(sizeof(*new), GFP_KERNEL);
+ if (new == NULL)
+ return NULL;
+ nfs_init_lock_context(new);
+ spin_lock(&inode->i_lock);
+ res = __nfs_find_lock_context(ctx);
+ if (res == NULL) {
+ list_add_tail(&new->list, &ctx->lock_context.list);
+ new->open_context = ctx;
+ res = new;
+ new = NULL;
+ }
+ }
+ spin_unlock(&inode->i_lock);
+ kfree(new);
+ return res;
+}
+
+void nfs_put_lock_context(struct nfs_lock_context *l_ctx)
+{
+ struct nfs_open_context *ctx = l_ctx->open_context;
+ struct inode *inode = ctx->path.dentry->d_inode;
+
+ if (!atomic_dec_and_lock(&l_ctx->count, &inode->i_lock))
+ return;
+ list_del(&l_ctx->list);
+ spin_unlock(&inode->i_lock);
+ kfree(l_ctx);
+}
+
/**
* nfs_close_context - Common close_context() routine NFSv2/v3
* @ctx: pointer to context
path_get(&ctx->path);
ctx->cred = get_rpccred(cred);
ctx->state = NULL;
- ctx->lockowner = current->files;
ctx->flags = 0;
ctx->error = 0;
ctx->dir_cookie = 0;
- atomic_set(&ctx->count, 1);
+ nfs_init_lock_context(&ctx->lock_context);
+ ctx->lock_context.open_context = ctx;
}
return ctx;
}
struct nfs_open_context *get_nfs_open_context(struct nfs_open_context *ctx)
{
if (ctx != NULL)
- atomic_inc(&ctx->count);
+ atomic_inc(&ctx->lock_context.count);
return ctx;
}
{
struct inode *inode = ctx->path.dentry->d_inode;
- if (!atomic_dec_and_lock(&ctx->count, &inode->i_lock))
+ if (!atomic_dec_and_lock(&ctx->lock_context.count, &inode->i_lock))
return;
list_del(&ctx->list);
spin_unlock(&inode->i_lock);
* Helper for restarting RPC calls in the possible presence of NFSv4.1
* sessions.
*/
-static inline void nfs_restart_rpc(struct rpc_task *task, const struct nfs_client *clp)
+static inline int nfs_restart_rpc(struct rpc_task *task, const struct nfs_client *clp)
{
if (nfs4_has_session(clp))
- rpc_restart_call_prepare(task);
- else
- rpc_restart_call(task);
+ return rpc_restart_call_prepare(task);
+ return rpc_restart_call(task);
}
static int
nfs_xdr_readargs(struct rpc_rqst *req, __be32 *p, struct nfs_readargs *args)
{
- struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth;
+ struct rpc_auth *auth = req->rq_cred->cr_auth;
unsigned int replen;
u32 offset = (u32)args->offset;
u32 count = args->count;
static int
nfs_xdr_readdirargs(struct rpc_rqst *req, __be32 *p, struct nfs_readdirargs *args)
{
- struct rpc_task *task = req->rq_task;
- struct rpc_auth *auth = task->tk_msg.rpc_cred->cr_auth;
+ struct rpc_auth *auth = req->rq_cred->cr_auth;
unsigned int replen;
u32 count = args->count;
static int
nfs_xdr_readlinkargs(struct rpc_rqst *req, __be32 *p, struct nfs_readlinkargs *args)
{
- struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth;
+ struct rpc_auth *auth = req->rq_cred->cr_auth;
unsigned int replen;
p = xdr_encode_fhandle(p, args->fh);
static int
nfs3_xdr_readargs(struct rpc_rqst *req, __be32 *p, struct nfs_readargs *args)
{
- struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth;
+ struct rpc_auth *auth = req->rq_cred->cr_auth;
unsigned int replen;
u32 count = args->count;
static int
nfs3_xdr_readdirargs(struct rpc_rqst *req, __be32 *p, struct nfs3_readdirargs *args)
{
- struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth;
+ struct rpc_auth *auth = req->rq_cred->cr_auth;
unsigned int replen;
u32 count = args->count;
nfs3_xdr_getaclargs(struct rpc_rqst *req, __be32 *p,
struct nfs3_getaclargs *args)
{
- struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth;
+ struct rpc_auth *auth = req->rq_cred->cr_auth;
unsigned int replen;
p = xdr_encode_fhandle(p, args->fh);
static int
nfs3_xdr_readlinkargs(struct rpc_rqst *req, __be32 *p, struct nfs3_readlinkargs *args)
{
- struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth;
+ struct rpc_auth *auth = req->rq_cred->cr_auth;
unsigned int replen;
p = xdr_encode_fhandle(p, args->fh);
NFS4CLNT_RECLAIM_NOGRACE,
NFS4CLNT_DELEGRETURN,
NFS4CLNT_SESSION_RESET,
- NFS4CLNT_SESSION_DRAINING,
NFS4CLNT_RECALL_SLOT,
};
+enum nfs4_session_state {
+ NFS4_SESSION_INITING,
+ NFS4_SESSION_DRAINING,
+};
+
+struct nfs4_minor_version_ops {
+ u32 minor_version;
+
+ int (*call_sync)(struct nfs_server *server,
+ struct rpc_message *msg,
+ struct nfs4_sequence_args *args,
+ struct nfs4_sequence_res *res,
+ int cache_reply);
+ int (*validate_stateid)(struct nfs_delegation *,
+ const nfs4_stateid *);
+ const struct nfs4_state_recovery_ops *reboot_recovery_ops;
+ const struct nfs4_state_recovery_ops *nograce_recovery_ops;
+ const struct nfs4_state_maintenance_ops *state_renewal_ops;
+};
+
/*
* struct rpc_sequence ensures that RPC calls are sent in the exact
* order that they appear on the list.
*/
struct nfs4_state_owner {
struct nfs_unique_id so_owner_id;
- struct nfs_client *so_client;
struct nfs_server *so_server;
struct rb_node so_client_node;
atomic_t so_count;
unsigned long so_flags;
struct list_head so_states;
- struct list_head so_delegations;
struct nfs_seqid_counter so_seqid;
struct rpc_sequence so_sequence;
};
* LOCK: one nfs4_state (LOCK) to hold the lock stateid nfs4_state(OPEN)
*/
+struct nfs4_lock_owner {
+ unsigned int lo_type;
+#define NFS4_ANY_LOCK_TYPE (0U)
+#define NFS4_FLOCK_LOCK_TYPE (1U << 0)
+#define NFS4_POSIX_LOCK_TYPE (1U << 1)
+ union {
+ fl_owner_t posix_owner;
+ pid_t flock_owner;
+ } lo_u;
+};
+
struct nfs4_lock_state {
struct list_head ls_locks; /* Other lock stateids */
struct nfs4_state * ls_state; /* Pointer to open state */
- fl_owner_t ls_owner; /* POSIX lock owner */
#define NFS_LOCK_INITIALIZED 1
int ls_flags;
struct nfs_seqid_counter ls_seqid;
struct nfs_unique_id ls_id;
nfs4_stateid ls_stateid;
atomic_t ls_count;
+ struct nfs4_lock_owner ls_owner;
};
/* bits for nfs4_state->flags */
extern int nfs4_server_capabilities(struct nfs_server *server, struct nfs_fh *fhandle);
extern int nfs4_proc_fs_locations(struct inode *dir, const struct qstr *name,
struct nfs4_fs_locations *fs_locations, struct page *page);
+extern void nfs4_release_lockowner(const struct nfs4_lock_state *);
-extern struct nfs4_state_recovery_ops *nfs4_reboot_recovery_ops[];
-extern struct nfs4_state_recovery_ops *nfs4_nograce_recovery_ops[];
#if defined(CONFIG_NFS_V4_1)
-extern int nfs4_setup_sequence(struct nfs_client *clp,
+static inline struct nfs4_session *nfs4_get_session(const struct nfs_server *server)
+{
+ return server->nfs_client->cl_session;
+}
+
+extern int nfs4_setup_sequence(const struct nfs_server *server,
struct nfs4_sequence_args *args, struct nfs4_sequence_res *res,
int cache_reply, struct rpc_task *task);
extern void nfs4_destroy_session(struct nfs4_session *session);
extern int nfs4_proc_get_lease_time(struct nfs_client *clp,
struct nfs_fsinfo *fsinfo);
#else /* CONFIG_NFS_v4_1 */
-static inline int nfs4_setup_sequence(struct nfs_client *clp,
+static inline struct nfs4_session *nfs4_get_session(const struct nfs_server *server)
+{
+ return NULL;
+}
+
+static inline int nfs4_setup_sequence(const struct nfs_server *server,
struct nfs4_sequence_args *args, struct nfs4_sequence_res *res,
int cache_reply, struct rpc_task *task)
{
}
#endif /* CONFIG_NFS_V4_1 */
-extern struct nfs4_state_maintenance_ops *nfs4_state_renewal_ops[];
+extern const struct nfs4_minor_version_ops *nfs_v4_minor_ops[];
extern const u32 nfs4_fattr_bitmap[2];
extern const u32 nfs4_statfs_bitmap[2];
extern void nfs41_handle_recall_slot(struct nfs_client *clp);
extern void nfs4_put_lock_state(struct nfs4_lock_state *lsp);
extern int nfs4_set_lock_state(struct nfs4_state *state, struct file_lock *fl);
-extern void nfs4_copy_stateid(nfs4_stateid *, struct nfs4_state *, fl_owner_t);
+extern void nfs4_copy_stateid(nfs4_stateid *, struct nfs4_state *, fl_owner_t, pid_t);
extern struct nfs_seqid *nfs_alloc_seqid(struct nfs_seqid_counter *counter, gfp_t gfp_mask);
extern int nfs_wait_on_sequence(struct nfs_seqid *seqid, struct rpc_task *task);
}
-static void renew_lease(const struct nfs_server *server, unsigned long timestamp)
+static void do_renew_lease(struct nfs_client *clp, unsigned long timestamp)
{
- struct nfs_client *clp = server->nfs_client;
spin_lock(&clp->cl_lock);
if (time_before(clp->cl_last_renewal,timestamp))
clp->cl_last_renewal = timestamp;
spin_unlock(&clp->cl_lock);
}
+static void renew_lease(const struct nfs_server *server, unsigned long timestamp)
+{
+ do_renew_lease(server->nfs_client, timestamp);
+}
+
#if defined(CONFIG_NFS_V4_1)
/*
{
struct rpc_task *task;
- if (!test_bit(NFS4CLNT_SESSION_DRAINING, &ses->clp->cl_state)) {
+ if (!test_bit(NFS4_SESSION_DRAINING, &ses->session_state)) {
task = rpc_wake_up_next(&ses->fc_slot_table.slot_tbl_waitq);
if (task)
rpc_task_set_priority(task, RPC_PRIORITY_PRIVILEGED);
complete(&ses->complete);
}
-static void nfs41_sequence_free_slot(const struct nfs_client *clp,
- struct nfs4_sequence_res *res)
+static void nfs41_sequence_free_slot(struct nfs4_sequence_res *res)
{
struct nfs4_slot_table *tbl;
- tbl = &clp->cl_session->fc_slot_table;
+ tbl = &res->sr_session->fc_slot_table;
if (res->sr_slotid == NFS4_MAX_SLOT_TABLE) {
/* just wake up the next guy waiting since
* we may have not consumed a slot after all */
spin_lock(&tbl->slot_tbl_lock);
nfs4_free_slot(tbl, res->sr_slotid);
- nfs41_check_drain_session_complete(clp->cl_session);
+ nfs41_check_drain_session_complete(res->sr_session);
spin_unlock(&tbl->slot_tbl_lock);
res->sr_slotid = NFS4_MAX_SLOT_TABLE;
}
-static void nfs41_sequence_done(struct nfs_client *clp,
- struct nfs4_sequence_res *res,
- int rpc_status)
+static int nfs41_sequence_done(struct rpc_task *task, struct nfs4_sequence_res *res)
{
unsigned long timestamp;
struct nfs4_slot_table *tbl;
struct nfs4_slot *slot;
+ struct nfs_client *clp;
/*
* sr_status remains 1 if an RPC level error occurred. The server
if (res->sr_slotid == NFS4_MAX_SLOT_TABLE)
goto out;
+ tbl = &res->sr_session->fc_slot_table;
+ slot = tbl->slots + res->sr_slotid;
+
/* Check the SEQUENCE operation status */
- if (res->sr_status == 0) {
- tbl = &clp->cl_session->fc_slot_table;
- slot = tbl->slots + res->sr_slotid;
+ switch (res->sr_status) {
+ case 0:
/* Update the slot's sequence and clientid lease timer */
++slot->seq_nr;
timestamp = res->sr_renewal_time;
- spin_lock(&clp->cl_lock);
- if (time_before(clp->cl_last_renewal, timestamp))
- clp->cl_last_renewal = timestamp;
- spin_unlock(&clp->cl_lock);
+ clp = res->sr_session->clp;
+ do_renew_lease(clp, timestamp);
/* Check sequence flags */
if (atomic_read(&clp->cl_count) > 1)
nfs41_handle_sequence_flag_errors(clp, res->sr_status_flags);
+ break;
+ case -NFS4ERR_DELAY:
+ /* The server detected a resend of the RPC call and
+ * returned NFS4ERR_DELAY as per Section 2.10.6.2
+ * of RFC5661.
+ */
+ dprintk("%s: slot=%d seq=%d: Operation in progress\n",
+ __func__, res->sr_slotid, slot->seq_nr);
+ goto out_retry;
+ default:
+ /* Just update the slot sequence no. */
+ ++slot->seq_nr;
}
out:
/* The session may be reset by one of the error handlers. */
dprintk("%s: Error %d free the slot \n", __func__, res->sr_status);
- nfs41_sequence_free_slot(clp, res);
+ nfs41_sequence_free_slot(res);
+ return 1;
+out_retry:
+ if (!rpc_restart_call(task))
+ goto out;
+ rpc_delay(task, NFS4_POLL_RETRY_MAX);
+ return 0;
+}
+
+static int nfs4_sequence_done(struct rpc_task *task,
+ struct nfs4_sequence_res *res)
+{
+ if (res->sr_session == NULL)
+ return 1;
+ return nfs41_sequence_done(task, res);
}
/*
if (res->sr_slotid != NFS4_MAX_SLOT_TABLE)
return 0;
- memset(res, 0, sizeof(*res));
res->sr_slotid = NFS4_MAX_SLOT_TABLE;
tbl = &session->fc_slot_table;
spin_lock(&tbl->slot_tbl_lock);
- if (test_bit(NFS4CLNT_SESSION_DRAINING, &session->clp->cl_state) &&
+ if (test_bit(NFS4_SESSION_DRAINING, &session->session_state) &&
!rpc_task_has_priority(task, RPC_PRIORITY_PRIVILEGED)) {
/*
* The state manager will wait until the slot table is empty.
res->sr_session = session;
res->sr_slotid = slotid;
res->sr_renewal_time = jiffies;
+ res->sr_status_flags = 0;
/*
* sr_status is only set in decode_sequence, and so will remain
* set to 1 if an rpc level failure occurs.
return 0;
}
-int nfs4_setup_sequence(struct nfs_client *clp,
+int nfs4_setup_sequence(const struct nfs_server *server,
struct nfs4_sequence_args *args,
struct nfs4_sequence_res *res,
int cache_reply,
struct rpc_task *task)
{
+ struct nfs4_session *session = nfs4_get_session(server);
int ret = 0;
+ if (session == NULL) {
+ args->sa_session = NULL;
+ res->sr_session = NULL;
+ goto out;
+ }
+
dprintk("--> %s clp %p session %p sr_slotid %d\n",
- __func__, clp, clp->cl_session, res->sr_slotid);
+ __func__, session->clp, session, res->sr_slotid);
- if (!nfs4_has_session(clp))
- goto out;
- ret = nfs41_setup_sequence(clp->cl_session, args, res, cache_reply,
+ ret = nfs41_setup_sequence(session, args, res, cache_reply,
task);
- if (ret && ret != -EAGAIN) {
- /* terminate rpc task */
- task->tk_status = ret;
- task->tk_action = NULL;
- }
out:
dprintk("<-- %s status=%d\n", __func__, ret);
return ret;
}
struct nfs41_call_sync_data {
- struct nfs_client *clp;
+ const struct nfs_server *seq_server;
struct nfs4_sequence_args *seq_args;
struct nfs4_sequence_res *seq_res;
int cache_reply;
{
struct nfs41_call_sync_data *data = calldata;
- dprintk("--> %s data->clp->cl_session %p\n", __func__,
- data->clp->cl_session);
- if (nfs4_setup_sequence(data->clp, data->seq_args,
+ dprintk("--> %s data->seq_server %p\n", __func__, data->seq_server);
+
+ if (nfs4_setup_sequence(data->seq_server, data->seq_args,
data->seq_res, data->cache_reply, task))
return;
rpc_call_start(task);
{
struct nfs41_call_sync_data *data = calldata;
- nfs41_sequence_done(data->clp, data->seq_res, task->tk_status);
+ nfs41_sequence_done(task, data->seq_res);
}
struct rpc_call_ops nfs41_call_sync_ops = {
.rpc_call_done = nfs41_call_sync_done,
};
-static int nfs4_call_sync_sequence(struct nfs_client *clp,
- struct rpc_clnt *clnt,
+static int nfs4_call_sync_sequence(struct nfs_server *server,
struct rpc_message *msg,
struct nfs4_sequence_args *args,
struct nfs4_sequence_res *res,
int ret;
struct rpc_task *task;
struct nfs41_call_sync_data data = {
- .clp = clp,
+ .seq_server = server,
.seq_args = args,
.seq_res = res,
.cache_reply = cache_reply,
};
struct rpc_task_setup task_setup = {
- .rpc_client = clnt,
+ .rpc_client = server->client,
.rpc_message = msg,
.callback_ops = &nfs41_call_sync_ops,
.callback_data = &data
struct nfs4_sequence_res *res,
int cache_reply)
{
- return nfs4_call_sync_sequence(server->nfs_client, server->client,
- msg, args, res, cache_reply, 0);
+ return nfs4_call_sync_sequence(server, msg, args, res, cache_reply, 0);
}
+#else
+static int nfs4_sequence_done(struct rpc_task *task,
+ struct nfs4_sequence_res *res)
+{
+ return 1;
+}
#endif /* CONFIG_NFS_V4_1 */
int _nfs4_call_sync(struct nfs_server *server,
}
#define nfs4_call_sync(server, msg, args, res, cache_reply) \
- (server)->nfs_client->cl_call_sync((server), (msg), &(args)->seq_args, \
+ (server)->nfs_client->cl_mvops->call_sync((server), (msg), &(args)->seq_args, \
&(res)->seq_res, (cache_reply))
-static void nfs4_sequence_done(const struct nfs_server *server,
- struct nfs4_sequence_res *res, int rpc_status)
-{
-#ifdef CONFIG_NFS_V4_1
- if (nfs4_has_session(server->nfs_client))
- nfs41_sequence_done(server->nfs_client, res, rpc_status);
-#endif /* CONFIG_NFS_V4_1 */
-}
-
static void update_changeattr(struct inode *dir, struct nfs4_change_info *cinfo)
{
struct nfs_inode *nfsi = NFS_I(dir);
p->o_arg.server = server;
p->o_arg.bitmask = server->attr_bitmask;
p->o_arg.claim = NFS4_OPEN_CLAIM_NULL;
- if (flags & O_EXCL) {
- if (nfs4_has_persistent_session(server->nfs_client)) {
- /* GUARDED */
- p->o_arg.u.attrs = &p->attrs;
- memcpy(&p->attrs, attrs, sizeof(p->attrs));
- } else { /* EXCLUSIVE4_1 */
- u32 *s = (u32 *) p->o_arg.u.verifier.data;
- s[0] = jiffies;
- s[1] = current->pid;
- }
- } else if (flags & O_CREAT) {
+ if (flags & O_CREAT) {
+ u32 *s;
+
p->o_arg.u.attrs = &p->attrs;
memcpy(&p->attrs, attrs, sizeof(p->attrs));
+ s = (u32 *) p->o_arg.u.verifier.data;
+ s[0] = jiffies;
+ s[1] = current->pid;
}
p->c_arg.fh = &p->o_res.fh;
p->c_arg.stateid = &p->o_res.stateid;
struct nfs4_opendata *data = calldata;
data->rpc_status = task->tk_status;
- if (RPC_ASSASSINATED(task))
- return;
if (data->rpc_status == 0) {
memcpy(data->o_res.stateid.data, data->c_res.stateid.data,
sizeof(data->o_res.stateid.data));
}
/* Update sequence id. */
data->o_arg.id = sp->so_owner_id.id;
- data->o_arg.clientid = sp->so_client->cl_clientid;
+ data->o_arg.clientid = sp->so_server->nfs_client->cl_clientid;
if (data->o_arg.claim == NFS4_OPEN_CLAIM_PREVIOUS) {
task->tk_msg.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_OPEN_NOATTR];
nfs_copy_fh(&data->o_res.fh, data->o_arg.fh);
}
data->timestamp = jiffies;
- if (nfs4_setup_sequence(data->o_arg.server->nfs_client,
+ if (nfs4_setup_sequence(data->o_arg.server,
&data->o_arg.seq_args,
&data->o_res.seq_res, 1, task))
return;
data->rpc_status = task->tk_status;
- nfs4_sequence_done(data->o_arg.server, &data->o_res.seq_res,
- task->tk_status);
-
- if (RPC_ASSASSINATED(task))
+ if (!nfs4_sequence_done(task, &data->o_res.seq_res))
return;
+
if (task->tk_status == 0) {
switch (data->o_res.f_attr->mode & S_IFMT) {
case S_IFREG:
if (nfs4_copy_delegation_stateid(&arg.stateid, inode)) {
/* Use that stateid */
} else if (state != NULL) {
- nfs4_copy_stateid(&arg.stateid, state, current->files);
+ nfs4_copy_stateid(&arg.stateid, state, current->files, current->tgid);
} else
memcpy(&arg.stateid, &zero_stateid, sizeof(arg.stateid));
struct nfs4_state *state = calldata->state;
struct nfs_server *server = NFS_SERVER(calldata->inode);
- nfs4_sequence_done(server, &calldata->res.seq_res, task->tk_status);
- if (RPC_ASSASSINATED(task))
+ if (!nfs4_sequence_done(task, &calldata->res.seq_res))
return;
/* hmm. we are done with the inode, and in the process of freeing
* the state_owner. we keep this around to process errors
nfs_fattr_init(calldata->res.fattr);
calldata->timestamp = jiffies;
- if (nfs4_setup_sequence((NFS_SERVER(calldata->inode))->nfs_client,
+ if (nfs4_setup_sequence(NFS_SERVER(calldata->inode),
&calldata->arg.seq_args, &calldata->res.seq_res,
1, task))
return;
{
struct nfs_removeres *res = task->tk_msg.rpc_resp;
- nfs4_sequence_done(res->server, &res->seq_res, task->tk_status);
+ if (!nfs4_sequence_done(task, &res->seq_res))
+ return 0;
if (nfs4_async_handle_error(task, res->server, NULL) == -EAGAIN)
return 0;
update_changeattr(dir, &res->cinfo);
dprintk("--> %s\n", __func__);
- nfs4_sequence_done(server, &data->res.seq_res, task->tk_status);
+ if (!nfs4_sequence_done(task, &data->res.seq_res))
+ return -EAGAIN;
if (nfs4_async_handle_error(task, server, data->args.context->state) == -EAGAIN) {
nfs_restart_rpc(task, server->nfs_client);
{
struct inode *inode = data->inode;
- nfs4_sequence_done(NFS_SERVER(inode), &data->res.seq_res,
- task->tk_status);
+ if (!nfs4_sequence_done(task, &data->res.seq_res))
+ return -EAGAIN;
if (nfs4_async_handle_error(task, NFS_SERVER(inode), data->args.context->state) == -EAGAIN) {
nfs_restart_rpc(task, NFS_SERVER(inode)->nfs_client);
{
struct inode *inode = data->inode;
- nfs4_sequence_done(NFS_SERVER(inode), &data->res.seq_res,
- task->tk_status);
+ if (!nfs4_sequence_done(task, &data->res.seq_res))
+ return -EAGAIN;
+
if (nfs4_async_handle_error(task, NFS_SERVER(inode), NULL) == -EAGAIN) {
nfs_restart_rpc(task, NFS_SERVER(inode)->nfs_client);
return -EAGAIN;
nfs4_schedule_state_recovery(clp);
return;
}
- spin_lock(&clp->cl_lock);
- if (time_before(clp->cl_last_renewal,timestamp))
- clp->cl_last_renewal = timestamp;
- spin_unlock(&clp->cl_lock);
+ do_renew_lease(clp, timestamp);
}
static const struct rpc_call_ops nfs4_renew_ops = {
status = rpc_call_sync(clp->cl_rpcclient, &msg, 0);
if (status < 0)
return status;
- spin_lock(&clp->cl_lock);
- if (time_before(clp->cl_last_renewal,now))
- clp->cl_last_renewal = now;
- spin_unlock(&clp->cl_lock);
+ do_renew_lease(clp, now);
return 0;
}
}
static int
-_nfs4_async_handle_error(struct rpc_task *task, const struct nfs_server *server, struct nfs_client *clp, struct nfs4_state *state)
+nfs4_async_handle_error(struct rpc_task *task, const struct nfs_server *server, struct nfs4_state *state)
{
- if (!clp || task->tk_status >= 0)
+ struct nfs_client *clp = server->nfs_client;
+
+ if (task->tk_status >= 0)
return 0;
switch(task->tk_status) {
case -NFS4ERR_ADMIN_REVOKED:
return -EAGAIN;
#endif /* CONFIG_NFS_V4_1 */
case -NFS4ERR_DELAY:
- if (server)
- nfs_inc_server_stats(server, NFSIOS_DELAY);
+ nfs_inc_server_stats(server, NFSIOS_DELAY);
case -NFS4ERR_GRACE:
case -EKEYEXPIRED:
rpc_delay(task, NFS4_POLL_RETRY_MAX);
return -EAGAIN;
}
-static int
-nfs4_async_handle_error(struct rpc_task *task, const struct nfs_server *server, struct nfs4_state *state)
-{
- return _nfs4_async_handle_error(task, server, server->nfs_client, state);
-}
-
int nfs4_proc_setclientid(struct nfs_client *clp, u32 program,
unsigned short port, struct rpc_cred *cred,
struct nfs4_setclientid_res *res)
{
struct nfs4_delegreturndata *data = calldata;
- nfs4_sequence_done(data->res.server, &data->res.seq_res,
- task->tk_status);
+ if (!nfs4_sequence_done(task, &data->res.seq_res))
+ return;
switch (task->tk_status) {
case -NFS4ERR_STALE_STATEID:
d_data = (struct nfs4_delegreturndata *)data;
- if (nfs4_setup_sequence(d_data->res.server->nfs_client,
+ if (nfs4_setup_sequence(d_data->res.server,
&d_data->args.seq_args,
&d_data->res.seq_res, 1, task))
return;
{
struct nfs4_unlockdata *calldata = data;
- nfs4_sequence_done(calldata->server, &calldata->res.seq_res,
- task->tk_status);
- if (RPC_ASSASSINATED(task))
+ if (!nfs4_sequence_done(task, &calldata->res.seq_res))
return;
switch (task->tk_status) {
case 0:
return;
}
calldata->timestamp = jiffies;
- if (nfs4_setup_sequence(calldata->server->nfs_client,
+ if (nfs4_setup_sequence(calldata->server,
&calldata->arg.seq_args,
&calldata->res.seq_res, 1, task))
return;
} else
data->arg.new_lock_owner = 0;
data->timestamp = jiffies;
- if (nfs4_setup_sequence(data->server->nfs_client, &data->arg.seq_args,
+ if (nfs4_setup_sequence(data->server,
+ &data->arg.seq_args,
&data->res.seq_res, 1, task))
return;
rpc_call_start(task);
dprintk("%s: begin!\n", __func__);
- nfs4_sequence_done(data->server, &data->res.seq_res,
- task->tk_status);
+ if (!nfs4_sequence_done(task, &data->res.seq_res))
+ return;
data->rpc_status = task->tk_status;
- if (RPC_ASSASSINATED(task))
- goto out;
if (data->arg.new_lock_owner != 0) {
if (data->rpc_status == 0)
nfs_confirm_seqid(&data->lsp->ls_seqid, 0);
return err;
}
+static void nfs4_release_lockowner_release(void *calldata)
+{
+ kfree(calldata);
+}
+
+const struct rpc_call_ops nfs4_release_lockowner_ops = {
+ .rpc_release = nfs4_release_lockowner_release,
+};
+
+void nfs4_release_lockowner(const struct nfs4_lock_state *lsp)
+{
+ struct nfs_server *server = lsp->ls_state->owner->so_server;
+ struct nfs_release_lockowner_args *args;
+ struct rpc_message msg = {
+ .rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_RELEASE_LOCKOWNER],
+ };
+
+ if (server->nfs_client->cl_mvops->minor_version != 0)
+ return;
+ args = kmalloc(sizeof(*args), GFP_NOFS);
+ if (!args)
+ return;
+ args->lock_owner.clientid = server->nfs_client->cl_clientid;
+ args->lock_owner.id = lsp->ls_id.id;
+ msg.rpc_argp = args;
+ rpc_call_async(server->client, &msg, 0, &nfs4_release_lockowner_ops, args);
+}
+
#define XATTR_NAME_NFSV4_ACL "system.nfs4_acl"
int nfs4_setxattr(struct dentry *dentry, const char *key, const void *buf,
(struct nfs4_get_lease_time_data *)calldata;
dprintk("--> %s\n", __func__);
- nfs41_sequence_done(data->clp, &data->res->lr_seq_res, task->tk_status);
+ if (!nfs41_sequence_done(task, &data->res->lr_seq_res))
+ return;
switch (task->tk_status) {
case -NFS4ERR_DELAY:
case -NFS4ERR_GRACE:
if (!session)
return NULL;
- /*
- * The create session reply races with the server back
- * channel probe. Mark the client NFS_CS_SESSION_INITING
- * so that the client back channel can find the
- * nfs_client struct
- */
- clp->cl_cons_state = NFS_CS_SESSION_INITING;
init_completion(&session->complete);
tbl = &session->fc_slot_table;
spin_lock_init(&tbl->slot_tbl_lock);
rpc_init_wait_queue(&tbl->slot_tbl_waitq, "BackChannel Slot table");
+ session->session_state = 1<<NFS4_SESSION_INITING;
+
session->clp = clp;
return session;
}
if (!nfs4_has_session(clp))
return 0;
+ session = clp->cl_session;
+ if (!test_and_clear_bit(NFS4_SESSION_INITING, &session->session_state))
+ return 0;
+
rsize = server->rsize;
if (rsize == 0)
rsize = NFS_MAX_FILE_IO_SIZE;
if (wsize == 0)
wsize = NFS_MAX_FILE_IO_SIZE;
- session = clp->cl_session;
session->fc_attrs.max_rqst_sz = wsize + nfs41_maxwrite_overhead;
session->fc_attrs.max_resp_sz = rsize + nfs41_maxread_overhead;
/*
* Renew the cl_session lease.
*/
-static int nfs4_proc_sequence(struct nfs_client *clp, struct rpc_cred *cred)
-{
+struct nfs4_sequence_data {
+ struct nfs_client *clp;
struct nfs4_sequence_args args;
struct nfs4_sequence_res res;
-
- struct rpc_message msg = {
- .rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_SEQUENCE],
- .rpc_argp = &args,
- .rpc_resp = &res,
- .rpc_cred = cred,
- };
-
- args.sa_cache_this = 0;
-
- return nfs4_call_sync_sequence(clp, clp->cl_rpcclient, &msg, &args,
- &res, args.sa_cache_this, 1);
-}
+};
static void nfs41_sequence_release(void *data)
{
- struct nfs_client *clp = (struct nfs_client *)data;
+ struct nfs4_sequence_data *calldata = data;
+ struct nfs_client *clp = calldata->clp;
if (atomic_read(&clp->cl_count) > 1)
nfs4_schedule_state_renewal(clp);
nfs_put_client(clp);
+ kfree(calldata);
+}
+
+static int nfs41_sequence_handle_errors(struct rpc_task *task, struct nfs_client *clp)
+{
+ switch(task->tk_status) {
+ case -NFS4ERR_DELAY:
+ case -EKEYEXPIRED:
+ rpc_delay(task, NFS4_POLL_RETRY_MAX);
+ return -EAGAIN;
+ default:
+ nfs4_schedule_state_recovery(clp);
+ }
+ return 0;
}
static void nfs41_sequence_call_done(struct rpc_task *task, void *data)
{
- struct nfs_client *clp = (struct nfs_client *)data;
+ struct nfs4_sequence_data *calldata = data;
+ struct nfs_client *clp = calldata->clp;
- nfs41_sequence_done(clp, task->tk_msg.rpc_resp, task->tk_status);
+ if (!nfs41_sequence_done(task, task->tk_msg.rpc_resp))
+ return;
if (task->tk_status < 0) {
dprintk("%s ERROR %d\n", __func__, task->tk_status);
if (atomic_read(&clp->cl_count) == 1)
goto out;
- if (_nfs4_async_handle_error(task, NULL, clp, NULL)
- == -EAGAIN) {
- nfs_restart_rpc(task, clp);
+ if (nfs41_sequence_handle_errors(task, clp) == -EAGAIN) {
+ rpc_restart_call_prepare(task);
return;
}
}
dprintk("%s rpc_cred %p\n", __func__, task->tk_msg.rpc_cred);
out:
- kfree(task->tk_msg.rpc_argp);
- kfree(task->tk_msg.rpc_resp);
-
dprintk("<-- %s\n", __func__);
}
static void nfs41_sequence_prepare(struct rpc_task *task, void *data)
{
- struct nfs_client *clp;
+ struct nfs4_sequence_data *calldata = data;
+ struct nfs_client *clp = calldata->clp;
struct nfs4_sequence_args *args;
struct nfs4_sequence_res *res;
- clp = (struct nfs_client *)data;
args = task->tk_msg.rpc_argp;
res = task->tk_msg.rpc_resp;
- if (nfs4_setup_sequence(clp, args, res, 0, task))
+ if (nfs41_setup_sequence(clp->cl_session, args, res, 0, task))
return;
rpc_call_start(task);
}
.rpc_release = nfs41_sequence_release,
};
-static int nfs41_proc_async_sequence(struct nfs_client *clp,
- struct rpc_cred *cred)
+static struct rpc_task *_nfs41_proc_sequence(struct nfs_client *clp, struct rpc_cred *cred)
{
- struct nfs4_sequence_args *args;
- struct nfs4_sequence_res *res;
+ struct nfs4_sequence_data *calldata;
struct rpc_message msg = {
.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_SEQUENCE],
.rpc_cred = cred,
};
+ struct rpc_task_setup task_setup_data = {
+ .rpc_client = clp->cl_rpcclient,
+ .rpc_message = &msg,
+ .callback_ops = &nfs41_sequence_ops,
+ .flags = RPC_TASK_ASYNC | RPC_TASK_SOFT,
+ };
if (!atomic_inc_not_zero(&clp->cl_count))
- return -EIO;
- args = kzalloc(sizeof(*args), GFP_NOFS);
- res = kzalloc(sizeof(*res), GFP_NOFS);
- if (!args || !res) {
- kfree(args);
- kfree(res);
+ return ERR_PTR(-EIO);
+ calldata = kmalloc(sizeof(*calldata), GFP_NOFS);
+ if (calldata == NULL) {
nfs_put_client(clp);
- return -ENOMEM;
+ return ERR_PTR(-ENOMEM);
}
- res->sr_slotid = NFS4_MAX_SLOT_TABLE;
- msg.rpc_argp = args;
- msg.rpc_resp = res;
+ calldata->res.sr_slotid = NFS4_MAX_SLOT_TABLE;
+ msg.rpc_argp = &calldata->args;
+ msg.rpc_resp = &calldata->res;
+ calldata->clp = clp;
+ task_setup_data.callback_data = calldata;
- return rpc_call_async(clp->cl_rpcclient, &msg, RPC_TASK_SOFT,
- &nfs41_sequence_ops, (void *)clp);
+ return rpc_run_task(&task_setup_data);
+}
+
+static int nfs41_proc_async_sequence(struct nfs_client *clp, struct rpc_cred *cred)
+{
+ struct rpc_task *task;
+ int ret = 0;
+
+ task = _nfs41_proc_sequence(clp, cred);
+ if (IS_ERR(task))
+ ret = PTR_ERR(task);
+ else
+ rpc_put_task(task);
+ dprintk("<-- %s status=%d\n", __func__, ret);
+ return ret;
+}
+
+static int nfs4_proc_sequence(struct nfs_client *clp, struct rpc_cred *cred)
+{
+ struct rpc_task *task;
+ int ret;
+
+ task = _nfs41_proc_sequence(clp, cred);
+ if (IS_ERR(task)) {
+ ret = PTR_ERR(task);
+ goto out;
+ }
+ ret = rpc_wait_for_completion_task(task);
+ if (!ret)
+ ret = task->tk_status;
+ rpc_put_task(task);
+out:
+ dprintk("<-- %s status=%d\n", __func__, ret);
+ return ret;
}
struct nfs4_reclaim_complete_data {
struct nfs4_reclaim_complete_data *calldata = data;
rpc_task_set_priority(task, RPC_PRIORITY_PRIVILEGED);
- if (nfs4_setup_sequence(calldata->clp, &calldata->arg.seq_args,
+ if (nfs41_setup_sequence(calldata->clp->cl_session,
+ &calldata->arg.seq_args,
&calldata->res.seq_res, 0, task))
return;
rpc_call_start(task);
}
+static int nfs41_reclaim_complete_handle_errors(struct rpc_task *task, struct nfs_client *clp)
+{
+ switch(task->tk_status) {
+ case 0:
+ case -NFS4ERR_COMPLETE_ALREADY:
+ case -NFS4ERR_WRONG_CRED: /* What to do here? */
+ break;
+ case -NFS4ERR_DELAY:
+ case -EKEYEXPIRED:
+ rpc_delay(task, NFS4_POLL_RETRY_MAX);
+ return -EAGAIN;
+ default:
+ nfs4_schedule_state_recovery(clp);
+ }
+ return 0;
+}
+
static void nfs4_reclaim_complete_done(struct rpc_task *task, void *data)
{
struct nfs4_reclaim_complete_data *calldata = data;
struct nfs4_sequence_res *res = &calldata->res.seq_res;
dprintk("--> %s\n", __func__);
- nfs41_sequence_done(clp, res, task->tk_status);
- switch (task->tk_status) {
- case 0:
- case -NFS4ERR_COMPLETE_ALREADY:
- break;
- case -NFS4ERR_BADSESSION:
- case -NFS4ERR_DEADSESSION:
- /*
- * Handle the session error, but do not retry the operation, as
- * we have no way of telling whether the clientid had to be
- * reset before we got our reply. If reset, a new wave of
- * reclaim operations will follow, containing their own reclaim
- * complete. We don't want our retry to get on the way of
- * recovery by incorrectly indicating to the server that we're
- * done reclaiming state since the process had to be restarted.
- */
- _nfs4_async_handle_error(task, NULL, clp, NULL);
- break;
- default:
- if (_nfs4_async_handle_error(
- task, NULL, clp, NULL) == -EAGAIN) {
- rpc_restart_call_prepare(task);
- return;
- }
- }
+ if (!nfs41_sequence_done(task, res))
+ return;
+ if (nfs41_reclaim_complete_handle_errors(task, clp) == -EAGAIN) {
+ rpc_restart_call_prepare(task);
+ return;
+ }
dprintk("<-- %s\n", __func__);
}
};
#endif
-/*
- * Per minor version reboot and network partition recovery ops
- */
-
-struct nfs4_state_recovery_ops *nfs4_reboot_recovery_ops[] = {
- &nfs40_reboot_recovery_ops,
-#if defined(CONFIG_NFS_V4_1)
- &nfs41_reboot_recovery_ops,
-#endif
+static const struct nfs4_minor_version_ops nfs_v4_0_minor_ops = {
+ .minor_version = 0,
+ .call_sync = _nfs4_call_sync,
+ .validate_stateid = nfs4_validate_delegation_stateid,
+ .reboot_recovery_ops = &nfs40_reboot_recovery_ops,
+ .nograce_recovery_ops = &nfs40_nograce_recovery_ops,
+ .state_renewal_ops = &nfs40_state_renewal_ops,
};
-struct nfs4_state_recovery_ops *nfs4_nograce_recovery_ops[] = {
- &nfs40_nograce_recovery_ops,
#if defined(CONFIG_NFS_V4_1)
- &nfs41_nograce_recovery_ops,
-#endif
+static const struct nfs4_minor_version_ops nfs_v4_1_minor_ops = {
+ .minor_version = 1,
+ .call_sync = _nfs4_call_sync_session,
+ .validate_stateid = nfs41_validate_delegation_stateid,
+ .reboot_recovery_ops = &nfs41_reboot_recovery_ops,
+ .nograce_recovery_ops = &nfs41_nograce_recovery_ops,
+ .state_renewal_ops = &nfs41_state_renewal_ops,
};
+#endif
-struct nfs4_state_maintenance_ops *nfs4_state_renewal_ops[] = {
- &nfs40_state_renewal_ops,
+const struct nfs4_minor_version_ops *nfs_v4_minor_ops[] = {
+ [0] = &nfs_v4_0_minor_ops,
#if defined(CONFIG_NFS_V4_1)
- &nfs41_state_renewal_ops,
+ [1] = &nfs_v4_1_minor_ops,
#endif
};
void
nfs4_renew_state(struct work_struct *work)
{
- struct nfs4_state_maintenance_ops *ops;
+ const struct nfs4_state_maintenance_ops *ops;
struct nfs_client *clp =
container_of(work, struct nfs_client, cl_renewd.work);
struct rpc_cred *cred;
long lease;
unsigned long last, now;
- ops = nfs4_state_renewal_ops[clp->cl_minorversion];
+ ops = clp->cl_mvops->state_renewal_ops;
dprintk("%s: start\n", __func__);
/* Are there any active superblocks? */
if (list_empty(&clp->cl_superblocks))
struct nfs4_session *ses = clp->cl_session;
int max_slots;
- if (test_and_clear_bit(NFS4CLNT_SESSION_DRAINING, &clp->cl_state)) {
+ if (ses == NULL)
+ return;
+ if (test_and_clear_bit(NFS4_SESSION_DRAINING, &ses->session_state)) {
spin_lock(&ses->fc_slot_table.slot_tbl_lock);
max_slots = ses->fc_slot_table.max_slots;
while (max_slots--) {
struct nfs4_slot_table *tbl = &ses->fc_slot_table;
spin_lock(&tbl->slot_tbl_lock);
- set_bit(NFS4CLNT_SESSION_DRAINING, &clp->cl_state);
+ set_bit(NFS4_SESSION_DRAINING, &ses->session_state);
if (tbl->highest_used_slotid != -1) {
INIT_COMPLETION(ses->complete);
spin_unlock(&tbl->slot_tbl_lock);
return NULL;
spin_lock_init(&sp->so_lock);
INIT_LIST_HEAD(&sp->so_states);
- INIT_LIST_HEAD(&sp->so_delegations);
rpc_init_wait_queue(&sp->so_sequence.wait, "Seqid_waitqueue");
sp->so_seqid.sequence = &sp->so_sequence;
spin_lock_init(&sp->so_sequence.lock);
nfs4_drop_state_owner(struct nfs4_state_owner *sp)
{
if (!RB_EMPTY_NODE(&sp->so_client_node)) {
- struct nfs_client *clp = sp->so_client;
+ struct nfs_client *clp = sp->so_server->nfs_client;
spin_lock(&clp->cl_lock);
rb_erase(&sp->so_client_node, &clp->cl_state_owners);
new = nfs4_alloc_state_owner();
if (new == NULL)
return NULL;
- new->so_client = clp;
new->so_server = server;
new->so_cred = cred;
spin_lock(&clp->cl_lock);
void nfs4_put_state_owner(struct nfs4_state_owner *sp)
{
- struct nfs_client *clp = sp->so_client;
+ struct nfs_client *clp = sp->so_server->nfs_client;
struct rpc_cred *cred = sp->so_cred;
if (!atomic_dec_and_lock(&sp->so_count, &clp->cl_lock))
* that is compatible with current->files
*/
static struct nfs4_lock_state *
-__nfs4_find_lock_state(struct nfs4_state *state, fl_owner_t fl_owner)
+__nfs4_find_lock_state(struct nfs4_state *state, fl_owner_t fl_owner, pid_t fl_pid, unsigned int type)
{
struct nfs4_lock_state *pos;
list_for_each_entry(pos, &state->lock_states, ls_locks) {
- if (pos->ls_owner != fl_owner)
+ if (type != NFS4_ANY_LOCK_TYPE && pos->ls_owner.lo_type != type)
continue;
+ switch (pos->ls_owner.lo_type) {
+ case NFS4_POSIX_LOCK_TYPE:
+ if (pos->ls_owner.lo_u.posix_owner != fl_owner)
+ continue;
+ break;
+ case NFS4_FLOCK_LOCK_TYPE:
+ if (pos->ls_owner.lo_u.flock_owner != fl_pid)
+ continue;
+ }
atomic_inc(&pos->ls_count);
return pos;
}
* exists, return an uninitialized one.
*
*/
-static struct nfs4_lock_state *nfs4_alloc_lock_state(struct nfs4_state *state, fl_owner_t fl_owner)
+static struct nfs4_lock_state *nfs4_alloc_lock_state(struct nfs4_state *state, fl_owner_t fl_owner, pid_t fl_pid, unsigned int type)
{
struct nfs4_lock_state *lsp;
- struct nfs_client *clp = state->owner->so_client;
+ struct nfs_client *clp = state->owner->so_server->nfs_client;
lsp = kzalloc(sizeof(*lsp), GFP_NOFS);
if (lsp == NULL)
lsp->ls_seqid.sequence = &lsp->ls_sequence;
atomic_set(&lsp->ls_count, 1);
lsp->ls_state = state;
- lsp->ls_owner = fl_owner;
+ lsp->ls_owner.lo_type = type;
+ switch (lsp->ls_owner.lo_type) {
+ case NFS4_FLOCK_LOCK_TYPE:
+ lsp->ls_owner.lo_u.flock_owner = fl_pid;
+ break;
+ case NFS4_POSIX_LOCK_TYPE:
+ lsp->ls_owner.lo_u.posix_owner = fl_owner;
+ break;
+ default:
+ kfree(lsp);
+ return NULL;
+ }
spin_lock(&clp->cl_lock);
nfs_alloc_unique_id(&clp->cl_lockowner_id, &lsp->ls_id, 1, 64);
spin_unlock(&clp->cl_lock);
static void nfs4_free_lock_state(struct nfs4_lock_state *lsp)
{
- struct nfs_client *clp = lsp->ls_state->owner->so_client;
+ struct nfs_client *clp = lsp->ls_state->owner->so_server->nfs_client;
spin_lock(&clp->cl_lock);
nfs_free_unique_id(&clp->cl_lockowner_id, &lsp->ls_id);
* exists, return an uninitialized one.
*
*/
-static struct nfs4_lock_state *nfs4_get_lock_state(struct nfs4_state *state, fl_owner_t owner)
+static struct nfs4_lock_state *nfs4_get_lock_state(struct nfs4_state *state, fl_owner_t owner, pid_t pid, unsigned int type)
{
struct nfs4_lock_state *lsp, *new = NULL;
for(;;) {
spin_lock(&state->state_lock);
- lsp = __nfs4_find_lock_state(state, owner);
+ lsp = __nfs4_find_lock_state(state, owner, pid, type);
if (lsp != NULL)
break;
if (new != NULL) {
break;
}
spin_unlock(&state->state_lock);
- new = nfs4_alloc_lock_state(state, owner);
+ new = nfs4_alloc_lock_state(state, owner, pid, type);
if (new == NULL)
return NULL;
}
if (list_empty(&state->lock_states))
clear_bit(LK_STATE_IN_USE, &state->flags);
spin_unlock(&state->state_lock);
+ if (lsp->ls_flags & NFS_LOCK_INITIALIZED)
+ nfs4_release_lockowner(lsp);
nfs4_free_lock_state(lsp);
}
if (fl->fl_ops != NULL)
return 0;
- lsp = nfs4_get_lock_state(state, fl->fl_owner);
+ if (fl->fl_flags & FL_POSIX)
+ lsp = nfs4_get_lock_state(state, fl->fl_owner, 0, NFS4_POSIX_LOCK_TYPE);
+ else if (fl->fl_flags & FL_FLOCK)
+ lsp = nfs4_get_lock_state(state, 0, fl->fl_pid, NFS4_FLOCK_LOCK_TYPE);
+ else
+ return -EINVAL;
if (lsp == NULL)
return -ENOMEM;
fl->fl_u.nfs4_fl.owner = lsp;
* Byte-range lock aware utility to initialize the stateid of read/write
* requests.
*/
-void nfs4_copy_stateid(nfs4_stateid *dst, struct nfs4_state *state, fl_owner_t fl_owner)
+void nfs4_copy_stateid(nfs4_stateid *dst, struct nfs4_state *state, fl_owner_t fl_owner, pid_t fl_pid)
{
struct nfs4_lock_state *lsp;
int seq;
return;
spin_lock(&state->state_lock);
- lsp = __nfs4_find_lock_state(state, fl_owner);
+ lsp = __nfs4_find_lock_state(state, fl_owner, fl_pid, NFS4_ANY_LOCK_TYPE);
if (lsp != NULL && (lsp->ls_flags & NFS_LOCK_INITIALIZED) != 0)
memcpy(dst, &lsp->ls_stateid, sizeof(*dst));
spin_unlock(&state->state_lock);
case -NFS4ERR_BAD_STATEID:
case -NFS4ERR_RECLAIM_BAD:
case -NFS4ERR_RECLAIM_CONFLICT:
- nfs4_state_mark_reclaim_nograce(sp->so_client, state);
+ nfs4_state_mark_reclaim_nograce(sp->so_server->nfs_client, state);
break;
case -NFS4ERR_EXPIRED:
case -NFS4ERR_NO_GRACE:
- nfs4_state_mark_reclaim_nograce(sp->so_client, state);
+ nfs4_state_mark_reclaim_nograce(sp->so_server->nfs_client, state);
case -NFS4ERR_STALE_CLIENTID:
case -NFS4ERR_BADSESSION:
case -NFS4ERR_BADSLOT:
if (!test_and_clear_bit(NFS4CLNT_RECLAIM_REBOOT, &clp->cl_state))
return;
- nfs4_reclaim_complete(clp,
- nfs4_reboot_recovery_ops[clp->cl_minorversion]);
+ nfs4_reclaim_complete(clp, clp->cl_mvops->reboot_recovery_ops);
for (pos = rb_first(&clp->cl_state_owners); pos != NULL; pos = rb_next(pos)) {
sp = rb_entry(pos, struct nfs4_state_owner, so_client_node);
static int nfs4_check_lease(struct nfs_client *clp)
{
struct rpc_cred *cred;
- struct nfs4_state_maintenance_ops *ops =
- nfs4_state_renewal_ops[clp->cl_minorversion];
+ const struct nfs4_state_maintenance_ops *ops =
+ clp->cl_mvops->state_renewal_ops;
int status = -NFS4ERR_EXPIRED;
/* Is the client already known to have an expired lease? */
static int nfs4_reclaim_lease(struct nfs_client *clp)
{
struct rpc_cred *cred;
- struct nfs4_state_recovery_ops *ops =
- nfs4_reboot_recovery_ops[clp->cl_minorversion];
+ const struct nfs4_state_recovery_ops *ops =
+ clp->cl_mvops->reboot_recovery_ops;
int status = -ENOENT;
cred = ops->get_clid_cred(clp);
/* First recover reboot state... */
if (test_bit(NFS4CLNT_RECLAIM_REBOOT, &clp->cl_state)) {
status = nfs4_do_reclaim(clp,
- nfs4_reboot_recovery_ops[clp->cl_minorversion]);
+ clp->cl_mvops->reboot_recovery_ops);
if (test_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state) ||
test_bit(NFS4CLNT_SESSION_RESET, &clp->cl_state))
continue;
/* Now recover expired state... */
if (test_and_clear_bit(NFS4CLNT_RECLAIM_NOGRACE, &clp->cl_state)) {
status = nfs4_do_reclaim(clp,
- nfs4_nograce_recovery_ops[clp->cl_minorversion]);
+ clp->cl_mvops->nograce_recovery_ops);
if (test_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state) ||
test_bit(NFS4CLNT_SESSION_RESET, &clp->cl_state) ||
test_bit(NFS4CLNT_RECLAIM_REBOOT, &clp->cl_state))
#define encode_link_maxsz (op_encode_hdr_maxsz + \
nfs4_name_maxsz)
#define decode_link_maxsz (op_decode_hdr_maxsz + decode_change_info_maxsz)
+#define encode_lockowner_maxsz (7)
#define encode_lock_maxsz (op_encode_hdr_maxsz + \
7 + \
- 1 + encode_stateid_maxsz + 8)
+ 1 + encode_stateid_maxsz + 1 + \
+ encode_lockowner_maxsz)
#define decode_lock_denied_maxsz \
(8 + decode_lockowner_maxsz)
#define decode_lock_maxsz (op_decode_hdr_maxsz + \
decode_lock_denied_maxsz)
-#define encode_lockt_maxsz (op_encode_hdr_maxsz + 12)
+#define encode_lockt_maxsz (op_encode_hdr_maxsz + 5 + \
+ encode_lockowner_maxsz)
#define decode_lockt_maxsz (op_decode_hdr_maxsz + \
decode_lock_denied_maxsz)
#define encode_locku_maxsz (op_encode_hdr_maxsz + 3 + \
4)
#define decode_locku_maxsz (op_decode_hdr_maxsz + \
decode_stateid_maxsz)
+#define encode_release_lockowner_maxsz \
+ (op_encode_hdr_maxsz + \
+ encode_lockowner_maxsz)
+#define decode_release_lockowner_maxsz \
+ (op_decode_hdr_maxsz)
#define encode_access_maxsz (op_encode_hdr_maxsz + 1)
#define decode_access_maxsz (op_decode_hdr_maxsz + 2)
#define encode_symlink_maxsz (op_encode_hdr_maxsz + \
decode_sequence_maxsz + \
decode_putfh_maxsz + \
decode_locku_maxsz)
+#define NFS4_enc_release_lockowner_sz \
+ (compound_encode_hdr_maxsz + \
+ encode_lockowner_maxsz)
+#define NFS4_dec_release_lockowner_sz \
+ (compound_decode_hdr_maxsz + \
+ decode_lockowner_maxsz)
#define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \
encode_sequence_maxsz + \
encode_putfh_maxsz + \
struct compound_hdr *hdr)
{
__be32 *p;
- struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth;
+ struct rpc_auth *auth = req->rq_cred->cr_auth;
/* initialize running count of expected bytes in reply.
* NOTE: the replied tag SHOULD be the same is the one sent,
return fl->fl_end - fl->fl_start + 1;
}
+static void encode_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner)
+{
+ __be32 *p;
+
+ p = reserve_space(xdr, 28);
+ p = xdr_encode_hyper(p, lowner->clientid);
+ *p++ = cpu_to_be32(16);
+ p = xdr_encode_opaque_fixed(p, "lock id:", 8);
+ xdr_encode_hyper(p, lowner->id);
+}
+
/*
* opcode,type,reclaim,offset,length,new_lock_owner = 32
* open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40
p = xdr_encode_hyper(p, nfs4_lock_length(args->fl));
*p = cpu_to_be32(args->new_lock_owner);
if (args->new_lock_owner){
- p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+32);
+ p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4);
*p++ = cpu_to_be32(args->open_seqid->sequence->counter);
p = xdr_encode_opaque_fixed(p, args->open_stateid->data, NFS4_STATEID_SIZE);
*p++ = cpu_to_be32(args->lock_seqid->sequence->counter);
- p = xdr_encode_hyper(p, args->lock_owner.clientid);
- *p++ = cpu_to_be32(16);
- p = xdr_encode_opaque_fixed(p, "lock id:", 8);
- xdr_encode_hyper(p, args->lock_owner.id);
+ encode_lockowner(xdr, &args->lock_owner);
}
else {
p = reserve_space(xdr, NFS4_STATEID_SIZE+4);
{
__be32 *p;
- p = reserve_space(xdr, 52);
+ p = reserve_space(xdr, 24);
*p++ = cpu_to_be32(OP_LOCKT);
*p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0));
p = xdr_encode_hyper(p, args->fl->fl_start);
p = xdr_encode_hyper(p, nfs4_lock_length(args->fl));
- p = xdr_encode_hyper(p, args->lock_owner.clientid);
- *p++ = cpu_to_be32(16);
- p = xdr_encode_opaque_fixed(p, "lock id:", 8);
- xdr_encode_hyper(p, args->lock_owner.id);
+ encode_lockowner(xdr, &args->lock_owner);
hdr->nops++;
hdr->replen += decode_lockt_maxsz;
}
hdr->replen += decode_locku_maxsz;
}
+static void encode_release_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner, struct compound_hdr *hdr)
+{
+ __be32 *p;
+
+ p = reserve_space(xdr, 4);
+ *p = cpu_to_be32(OP_RELEASE_LOCKOWNER);
+ encode_lockowner(xdr, lowner);
+ hdr->nops++;
+ hdr->replen += decode_release_lockowner_maxsz;
+}
+
static void encode_lookup(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr)
{
int len = name->len;
break;
default:
clp = arg->server->nfs_client;
- if (clp->cl_minorversion > 0) {
+ if (clp->cl_mvops->minor_version > 0) {
if (nfs4_has_persistent_session(clp)) {
*p = cpu_to_be32(NFS4_CREATE_GUARDED);
encode_attrs(xdr, arg->u.attrs, arg->server);
hdr->replen += decode_putrootfh_maxsz;
}
-static void encode_stateid(struct xdr_stream *xdr, const struct nfs_open_context *ctx)
+static void encode_stateid(struct xdr_stream *xdr, const struct nfs_open_context *ctx, const struct nfs_lock_context *l_ctx)
{
nfs4_stateid stateid;
__be32 *p;
p = reserve_space(xdr, NFS4_STATEID_SIZE);
if (ctx->state != NULL) {
- nfs4_copy_stateid(&stateid, ctx->state, ctx->lockowner);
+ nfs4_copy_stateid(&stateid, ctx->state, l_ctx->lockowner, l_ctx->pid);
xdr_encode_opaque_fixed(p, stateid.data, NFS4_STATEID_SIZE);
} else
xdr_encode_opaque_fixed(p, zero_stateid.data, NFS4_STATEID_SIZE);
p = reserve_space(xdr, 4);
*p = cpu_to_be32(OP_READ);
- encode_stateid(xdr, args->context);
+ encode_stateid(xdr, args->context, args->lock_context);
p = reserve_space(xdr, 12);
p = xdr_encode_hyper(p, args->offset);
p = reserve_space(xdr, 4);
*p = cpu_to_be32(OP_WRITE);
- encode_stateid(xdr, args->context);
+ encode_stateid(xdr, args->context, args->lock_context);
p = reserve_space(xdr, 16);
p = xdr_encode_hyper(p, args->offset);
{
#if defined(CONFIG_NFS_V4_1)
if (args->sa_session)
- return args->sa_session->clp->cl_minorversion;
+ return args->sa_session->clp->cl_mvops->minor_version;
#endif /* CONFIG_NFS_V4_1 */
return 0;
}
return 0;
}
+static int nfs4_xdr_enc_release_lockowner(struct rpc_rqst *req, __be32 *p, struct nfs_release_lockowner_args *args)
+{
+ struct xdr_stream xdr;
+ struct compound_hdr hdr = {
+ .minorversion = 0,
+ };
+
+ xdr_init_encode(&xdr, &req->rq_snd_buf, p);
+ encode_compound_hdr(&xdr, req, &hdr);
+ encode_release_lockowner(&xdr, &args->lock_owner, &hdr);
+ encode_nops(&hdr);
+ return 0;
+}
+
/*
* Encode a READLINK request
*/
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .minorversion = args->client->cl_minorversion,
+ .minorversion = args->client->cl_mvops->minor_version,
};
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .minorversion = args->client->cl_minorversion,
+ .minorversion = args->client->cl_mvops->minor_version,
};
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .minorversion = session->clp->cl_minorversion,
+ .minorversion = session->clp->cl_mvops->minor_version,
};
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
return status;
}
+static int decode_release_lockowner(struct xdr_stream *xdr)
+{
+ return decode_op_hdr(xdr, OP_RELEASE_LOCKOWNER);
+}
+
static int decode_lookup(struct xdr_stream *xdr)
{
return decode_op_hdr(xdr, OP_LOOKUP);
return status;
}
+static int nfs4_xdr_dec_release_lockowner(struct rpc_rqst *rqstp, __be32 *p, void *dummy)
+{
+ struct xdr_stream xdr;
+ struct compound_hdr hdr;
+ int status;
+
+ xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
+ status = decode_compound_hdr(&xdr, &hdr);
+ if (!status)
+ status = decode_release_lockowner(&xdr);
+ return status;
+}
+
/*
* Decode READLINK response
*/
PROC(GETACL, enc_getacl, dec_getacl),
PROC(SETACL, enc_setacl, dec_setacl),
PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations),
+ PROC(RELEASE_LOCKOWNER, enc_release_lockowner, dec_release_lockowner),
#if defined(CONFIG_NFS_V4_1)
PROC(EXCHANGE_ID, enc_exchange_id, dec_exchange_id),
PROC(CREATE_SESSION, enc_create_session, dec_create_session),
req->wb_pgbase = offset;
req->wb_bytes = count;
req->wb_context = get_nfs_open_context(ctx);
+ req->wb_lock_context = nfs_get_lock_context(ctx);
kref_init(&req->wb_kref);
return req;
}
{
struct page *page = req->wb_page;
struct nfs_open_context *ctx = req->wb_context;
+ struct nfs_lock_context *l_ctx = req->wb_lock_context;
if (page != NULL) {
page_cache_release(page);
req->wb_page = NULL;
}
+ if (l_ctx != NULL) {
+ nfs_put_lock_context(l_ctx);
+ req->wb_lock_context = NULL;
+ }
if (ctx != NULL) {
put_nfs_open_context(ctx);
req->wb_context = NULL;
{
if (req->wb_context->cred != prev->wb_context->cred)
return 0;
- if (req->wb_context->lockowner != prev->wb_context->lockowner)
+ if (req->wb_lock_context->lockowner != prev->wb_lock_context->lockowner)
return 0;
if (req->wb_context->state != prev->wb_context->state)
return 0;
data->args.pages = data->pagevec;
data->args.count = count;
data->args.context = get_nfs_open_context(req->wb_context);
+ data->args.lock_context = req->wb_lock_context;
data->res.fattr = &data->fattr;
data->res.count = count;
{
struct nfs_read_data *data = calldata;
- if (nfs4_setup_sequence(NFS_SERVER(data->inode)->nfs_client,
+ if (nfs4_setup_sequence(NFS_SERVER(data->inode),
&data->args.seq_args, &data->res.seq_res,
0, task))
return;
{
struct sockaddr *sap = (struct sockaddr *)&nfss->mountd_address;
+ if (nfss->flags & NFS_MOUNT_LEGACY_INTERFACE)
+ return;
+
switch (sap->sa_family) {
case AF_INET: {
struct sockaddr_in *sin = (struct sockaddr_in *)sap;
* can deal with.
*/
args->flags = data->flags & NFS_MOUNT_FLAGMASK;
+ args->flags |= NFS_MOUNT_LEGACY_INTERFACE;
args->rsize = data->rsize;
args->wsize = data->wsize;
args->timeo = data->timeo;
struct nfs_unlinkdata *data = calldata;
struct nfs_server *server = NFS_SERVER(data->dir);
- if (nfs4_setup_sequence(server->nfs_client, &data->args.seq_args,
+ if (nfs4_setup_sequence(server, &data->args.seq_args,
&data->res.seq_res, 1, task))
return;
rpc_call_start(task);
req = nfs_page_find_request(page);
if (req == NULL)
return 0;
- do_flush = req->wb_page != page || req->wb_context != ctx;
+ do_flush = req->wb_page != page || req->wb_context != ctx ||
+ req->wb_lock_context->lockowner != current->files ||
+ req->wb_lock_context->pid != current->tgid;
nfs_release_request(req);
if (!do_flush)
return 0;
data->args.pages = data->pagevec;
data->args.count = count;
data->args.context = get_nfs_open_context(req->wb_context);
+ data->args.lock_context = req->wb_lock_context;
data->args.stable = NFS_UNSTABLE;
if (how & FLUSH_STABLE) {
data->args.stable = NFS_DATA_SYNC;
void nfs_write_prepare(struct rpc_task *task, void *calldata)
{
struct nfs_write_data *data = calldata;
- struct nfs_client *clp = (NFS_SERVER(data->inode))->nfs_client;
- if (nfs4_setup_sequence(clp, &data->args.seq_args,
+ if (nfs4_setup_sequence(NFS_SERVER(data->inode),
+ &data->args.seq_args,
&data->res.seq_res, 1, task))
return;
rpc_call_start(task);
NFSPROC4_CLNT_GETACL,
NFSPROC4_CLNT_SETACL,
NFSPROC4_CLNT_FS_LOCATIONS,
+ NFSPROC4_CLNT_RELEASE_LOCKOWNER,
/* nfs41 */
NFSPROC4_CLNT_EXCHANGE_ID,
int mask;
};
+struct nfs_lock_context {
+ atomic_t count;
+ struct list_head list;
+ struct nfs_open_context *open_context;
+ fl_owner_t lockowner;
+ pid_t pid;
+};
+
struct nfs4_state;
struct nfs_open_context {
- atomic_t count;
+ struct nfs_lock_context lock_context;
struct path path;
struct rpc_cred *cred;
struct nfs4_state *state;
- fl_owner_t lockowner;
fmode_t mode;
unsigned long flags;
extern struct nfs_open_context *get_nfs_open_context(struct nfs_open_context *ctx);
extern void put_nfs_open_context(struct nfs_open_context *ctx);
extern struct nfs_open_context *nfs_find_open_context(struct inode *inode, struct rpc_cred *cred, fmode_t mode);
+extern struct nfs_lock_context *nfs_get_lock_context(struct nfs_open_context *ctx);
+extern void nfs_put_lock_context(struct nfs_lock_context *l_ctx);
extern u64 nfs_compat_user_ino64(u64 fileid);
extern void nfs_fattr_init(struct nfs_fattr *fattr);
struct nfs4_sequence_args;
struct nfs4_sequence_res;
struct nfs_server;
+struct nfs4_minor_version_ops;
/*
* The nfs_client identifies our client state to the server.
*/
char cl_ipaddr[48];
unsigned char cl_id_uniquifier;
- int (* cl_call_sync)(struct nfs_server *server,
- struct rpc_message *msg,
- struct nfs4_sequence_args *args,
- struct nfs4_sequence_res *res,
- int cache_reply);
+ const struct nfs4_minor_version_ops *cl_mvops;
#endif /* CONFIG_NFS_V4 */
#ifdef CONFIG_NFS_V4_1
#define NFS_MOUNT_LOOKUP_CACHE_NONEG 0x10000
#define NFS_MOUNT_LOOKUP_CACHE_NONE 0x20000
#define NFS_MOUNT_NORESVPORT 0x40000
+#define NFS_MOUNT_LEGACY_INTERFACE 0x80000
#endif
struct list_head wb_list; /* Defines state of page: */
struct page *wb_page; /* page to read in/write out */
struct nfs_open_context *wb_context; /* File state context info */
+ struct nfs_lock_context *wb_lock_context; /* lock context info */
atomic_t wb_complete; /* i/os we're waiting for */
pgoff_t wb_index; /* Offset >> PAGE_CACHE_SHIFT */
unsigned int wb_offset, /* Offset & ~PAGE_CACHE_MASK */
__u64 clientid;
__u64 id;
union {
- struct iattr * attrs; /* UNCHECKED, GUARDED */
- nfs4_verifier verifier; /* EXCLUSIVE */
+ struct {
+ struct iattr * attrs; /* UNCHECKED, GUARDED */
+ nfs4_verifier verifier; /* EXCLUSIVE */
+ };
nfs4_stateid delegation; /* CLAIM_DELEGATE_CUR */
fmode_t delegation_type; /* CLAIM_PREVIOUS */
} u;
struct nfs4_sequence_res seq_res;
};
+struct nfs_release_lockowner_args {
+ struct nfs_lowner lock_owner;
+};
+
struct nfs4_delegreturnargs {
const struct nfs_fh *fhandle;
const nfs4_stateid *stateid;
struct nfs_readargs {
struct nfs_fh * fh;
struct nfs_open_context *context;
+ struct nfs_lock_context *lock_context;
__u64 offset;
__u32 count;
unsigned int pgbase;
struct nfs_writeargs {
struct nfs_fh * fh;
struct nfs_open_context *context;
+ struct nfs_lock_context *lock_context;
__u64 offset;
__u32 count;
enum nfs3_stable_how stable;
/*
* Client authentication handle
*/
-#define RPC_CREDCACHE_HASHBITS 4
-#define RPC_CREDCACHE_NR (1 << RPC_CREDCACHE_HASHBITS)
-struct rpc_cred_cache {
- struct hlist_head hashtable[RPC_CREDCACHE_NR];
- spinlock_t lock;
-};
-
+struct rpc_cred_cache;
struct rpc_authops;
struct rpc_auth {
unsigned int au_cslack; /* call cred size estimate */
void (*crdestroy)(struct rpc_cred *);
int (*crmatch)(struct auth_cred *, struct rpc_cred *, int);
- void (*crbind)(struct rpc_task *, struct rpc_cred *, int);
+ struct rpc_cred * (*crbind)(struct rpc_task *, struct rpc_cred *, int);
__be32 * (*crmarshal)(struct rpc_task *, __be32 *);
int (*crrefresh)(struct rpc_task *);
__be32 * (*crvalidate)(struct rpc_task *, __be32 *);
extern const struct rpc_authops authunix_ops;
extern const struct rpc_authops authnull_ops;
-void __init rpc_init_authunix(void);
-void __init rpc_init_generic_auth(void);
-void __init rpcauth_init_module(void);
+int __init rpc_init_authunix(void);
+int __init rpc_init_generic_auth(void);
+int __init rpcauth_init_module(void);
void __exit rpcauth_remove_module(void);
void __exit rpc_destroy_generic_auth(void);
+void rpc_destroy_authunix(void);
struct rpc_cred * rpc_lookup_cred(void);
struct rpc_cred * rpc_lookup_machine_cred(void);
struct rpc_cred * rpcauth_lookup_credcache(struct rpc_auth *, struct auth_cred *, int);
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);
-void rpcauth_bindcred(struct rpc_task *, struct rpc_cred *, int);
-void rpcauth_generic_bind_cred(struct rpc_task *, struct rpc_cred *, int);
+struct rpc_cred * rpcauth_generic_bind_cred(struct rpc_task *, struct rpc_cred *, int);
void put_rpccred(struct rpc_cred *);
-void rpcauth_unbindcred(struct rpc_task *);
__be32 * rpcauth_marshcred(struct rpc_task *, __be32 *);
__be32 * rpcauth_checkverf(struct rpc_task *, __be32 *);
int rpcauth_wrap_req(struct rpc_task *task, kxdrproc_t encode, void *rqstp, __be32 *data, void *obj);
struct rpc_clnt *rpc_clone_client(struct rpc_clnt *);
void rpc_shutdown_client(struct rpc_clnt *);
void rpc_release_client(struct rpc_clnt *);
+void rpc_task_release_client(struct rpc_task *);
int rpcb_register(u32, u32, int, unsigned short);
int rpcb_v4_register(const u32 program, const u32 version,
const struct rpc_message *msg, int flags);
struct rpc_task *rpc_call_null(struct rpc_clnt *clnt, struct rpc_cred *cred,
int flags);
-void rpc_restart_call_prepare(struct rpc_task *);
-void rpc_restart_call(struct rpc_task *);
+int rpc_restart_call_prepare(struct rpc_task *);
+int rpc_restart_call(struct rpc_task *);
void rpc_setbufsize(struct rpc_clnt *, unsigned int, unsigned int);
size_t rpc_max_payload(struct rpc_clnt *);
void rpc_force_rebind(struct rpc_clnt *);
const struct rpc_call_ops *ops);
void rpc_put_task(struct rpc_task *);
void rpc_exit_task(struct rpc_task *);
+void rpc_exit(struct rpc_task *, int);
void rpc_release_calldata(const struct rpc_call_ops *, void *);
void rpc_killall_tasks(struct rpc_clnt *);
void rpc_execute(struct rpc_task *);
extern struct workqueue_struct *rpciod_workqueue;
void rpc_prepare_task(struct rpc_task *task);
-static inline void rpc_exit(struct rpc_task *task, int status)
-{
- task->tk_status = status;
- task->tk_action = rpc_exit_task;
-}
-
static inline int rpc_wait_for_completion_task(struct rpc_task *task)
{
return __rpc_wait_for_completion_task(task, NULL);
* This is the private part
*/
struct rpc_task * rq_task; /* RPC task data */
+ struct rpc_cred * rq_cred; /* Bound cred */
__be32 rq_xid; /* request XID */
int rq_cong; /* has incremented xprt->cong */
u32 rq_seqno; /* gss seq no. used on req. */
# 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 */
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)
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);
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);
if (cache) {
auth->au_credcache = NULL;
rpcauth_clear_credcache(cache);
+ kfree(cache->hashtable);
kfree(cache);
}
}
*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) {
}
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;
.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
}
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);
__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);
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);
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);
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;
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);
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;
.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);
}
};
static struct rpc_auth generic_auth;
-static struct rpc_cred_cache generic_cred_cache;
static const struct rpc_credops generic_credops;
/*
}
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);
}
/*
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",
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 = {
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;
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,
{
dprintk("RPC: gss_free_ctx\n");
+ gss_delete_sec_context(&ctx->gc_gss_ctx);
kfree(ctx->gc_wire_ctx.data);
kfree(ctx);
}
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
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;
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);
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;
}
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))
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))
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;
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);
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);
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;
}
#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 *
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;
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;
}
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 = {
.crcreate = unx_create_cred,
};
-static
-struct rpc_cred_cache unix_cred_cache = {
-};
-
static
struct rpc_auth unix_auth = {
.au_cslack = UNX_WRITESLACK,
.au_ops = &authunix_ops,
.au_flavor = RPC_AUTH_UNIX,
.au_count = ATOMIC_INIT(0),
- .au_credcache = &unix_cred_cache,
};
static
}
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.
}
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
*/
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:
* 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);
* 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);
{
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);
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;
dprint_status(task);
task->tk_status = 0;
- task->tk_action = call_bind;
+ task->tk_action = call_refresh;
if (req->rq_buffer)
return;
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)
{
}
}
-/*
- * 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)
{
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);
}
/*
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);
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.
}
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.
*/
}
}
}
-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)
{
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);
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)
/* 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();
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);
{
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 */
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;
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
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;
}
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);
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
*/
git://bbs.cooldavid.org / net-next-2.6.git / commitdiff