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SUNRPC: Cleanup of rpc_task initialisation 

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Trond Myklebust 2007-07-14 15:39:59 -04:00
parent e8914c65f7
commit 84115e1cd4
7 changed files with 117 additions and 58 deletions
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36
fs/nfs/direct.c
View File

@ -272,6 +272,11 @@ static ssize_t nfs_direct_read_schedule_segment(struct nfs_direct_req *dreq,
unsigned long user_addr = (unsigned long)iov->iov_base;
size_t count = iov->iov_len;
size_t rsize = NFS_SERVER(inode)->rsize;
struct rpc_task_setup task_setup_data = {
.rpc_client = NFS_CLIENT(inode),
.callback_ops = &nfs_read_direct_ops,
.flags = RPC_TASK_ASYNC,
};
unsigned int pgbase;
int result;
ssize_t started = 0;
@ -322,8 +327,8 @@ static ssize_t nfs_direct_read_schedule_segment(struct nfs_direct_req *dreq,
data->res.eof = 0;
data->res.count = bytes;
rpc_init_task(&data->task, NFS_CLIENT(inode), RPC_TASK_ASYNC,
&nfs_read_direct_ops, data);
task_setup_data.callback_data = data;
rpc_init_task(&data->task, &task_setup_data);
NFS_PROTO(inode)->read_setup(data);
data->task.tk_cookie = (unsigned long) inode;
@ -431,6 +436,11 @@ static void nfs_direct_write_reschedule(struct nfs_direct_req *dreq)
struct inode *inode = dreq->inode;
struct list_head *p;
struct nfs_write_data *data;
struct rpc_task_setup task_setup_data = {
.rpc_client = NFS_CLIENT(inode),
.callback_ops = &nfs_write_direct_ops,
.flags = RPC_TASK_ASYNC,
};
dreq->count = 0;
get_dreq(dreq);
@ -451,8 +461,8 @@ static void nfs_direct_write_reschedule(struct nfs_direct_req *dreq)
* Reuse data->task; data->args should not have changed
* since the original request was sent.
*/
rpc_init_task(&data->task, NFS_CLIENT(inode), RPC_TASK_ASYNC,
&nfs_write_direct_ops, data);
task_setup_data.callback_data = data;
rpc_init_task(&data->task, &task_setup_data);
NFS_PROTO(inode)->write_setup(data, FLUSH_STABLE);
data->task.tk_priority = RPC_PRIORITY_NORMAL;
@ -504,6 +514,12 @@ static const struct rpc_call_ops nfs_commit_direct_ops = {
static void nfs_direct_commit_schedule(struct nfs_direct_req *dreq)
{
struct nfs_write_data *data = dreq->commit_data;
struct rpc_task_setup task_setup_data = {
.rpc_client = NFS_CLIENT(dreq->inode),
.callback_ops = &nfs_commit_direct_ops,
.callback_data = data,
.flags = RPC_TASK_ASYNC,
};
data->inode = dreq->inode;
data->cred = dreq->ctx->cred;
@ -515,8 +531,7 @@ static void nfs_direct_commit_schedule(struct nfs_direct_req *dreq)
data->res.fattr = &data->fattr;
data->res.verf = &data->verf;
rpc_init_task(&data->task, NFS_CLIENT(dreq->inode), RPC_TASK_ASYNC,
&nfs_commit_direct_ops, data);
rpc_init_task(&data->task, &task_setup_data);
NFS_PROTO(data->inode)->commit_setup(data, 0);
data->task.tk_priority = RPC_PRIORITY_NORMAL;
@ -641,6 +656,11 @@ static ssize_t nfs_direct_write_schedule_segment(struct nfs_direct_req *dreq,
struct inode *inode = ctx->path.dentry->d_inode;
unsigned long user_addr = (unsigned long)iov->iov_base;
size_t count = iov->iov_len;
struct rpc_task_setup task_setup_data = {
.rpc_client = NFS_CLIENT(inode),
.callback_ops = &nfs_write_direct_ops,
.flags = RPC_TASK_ASYNC,
};
size_t wsize = NFS_SERVER(inode)->wsize;
unsigned int pgbase;
int result;
@ -694,8 +714,8 @@ static ssize_t nfs_direct_write_schedule_segment(struct nfs_direct_req *dreq,
data->res.count = bytes;
data->res.verf = &data->verf;
rpc_init_task(&data->task, NFS_CLIENT(inode), RPC_TASK_ASYNC,
&nfs_write_direct_ops, data);
task_setup_data.callback_data = data;
rpc_init_task(&data->task, &task_setup_data);
NFS_PROTO(inode)->write_setup(data, sync);
data->task.tk_priority = RPC_PRIORITY_NORMAL;

15
fs/nfs/read.c
View File

@ -160,11 +160,17 @@ static void nfs_read_rpcsetup(struct nfs_page *req, struct nfs_read_data *data,
const struct rpc_call_ops *call_ops,
unsigned int count, unsigned int offset)
{
struct inode *inode;
int flags;
struct inode *inode = req->wb_context->path.dentry->d_inode;
int swap_flags = IS_SWAPFILE(inode) ? NFS_RPC_SWAPFLAGS : 0;
struct rpc_task_setup task_setup_data = {
.rpc_client = NFS_CLIENT(inode),
.callback_ops = call_ops,
.callback_data = data,
.flags = RPC_TASK_ASYNC | swap_flags,
};
data->req = req;
data->inode = inode = req->wb_context->path.dentry->d_inode;
data->inode = inode;
data->cred = req->wb_context->cred;
data->args.fh = NFS_FH(inode);
@ -180,8 +186,7 @@ static void nfs_read_rpcsetup(struct nfs_page *req, struct nfs_read_data *data,
nfs_fattr_init(&data->fattr);
/* Set up the initial task struct. */
flags = RPC_TASK_ASYNC | (IS_SWAPFILE(inode)? NFS_RPC_SWAPFLAGS : 0);
rpc_init_task(&data->task, NFS_CLIENT(inode), flags, call_ops, data);
rpc_init_task(&data->task, &task_setup_data);
NFS_PROTO(inode)->read_setup(data);
data->task.tk_cookie = (unsigned long)inode;

30
fs/nfs/write.c
View File

@ -773,8 +773,14 @@ static void nfs_write_rpcsetup(struct nfs_page *req,
unsigned int count, unsigned int offset,
int how)
{
struct inode *inode;
int flags;
struct inode *inode = req->wb_context->path.dentry->d_inode;
int flags = (how & FLUSH_SYNC) ? 0 : RPC_TASK_ASYNC;
struct rpc_task_setup task_setup_data = {
.rpc_client = NFS_CLIENT(inode),
.callback_ops = call_ops,
.callback_data = data,
.flags = flags,
};
/* Set up the RPC argument and reply structs
* NB: take care not to mess about with data->commit et al. */
@ -796,8 +802,7 @@ static void nfs_write_rpcsetup(struct nfs_page *req,
nfs_fattr_init(&data->fattr);
/* Set up the initial task struct. */
flags = (how & FLUSH_SYNC) ? 0 : RPC_TASK_ASYNC;
rpc_init_task(&data->task, NFS_CLIENT(inode), flags, call_ops, data);
rpc_init_task(&data->task, &task_setup_data);
NFS_PROTO(inode)->write_setup(data, how);
data->task.tk_priority = flush_task_priority(how);
@ -1144,16 +1149,20 @@ static void nfs_commit_rpcsetup(struct list_head *head,
struct nfs_write_data *data,
int how)
{
struct nfs_page *first;
struct inode *inode;
int flags;
struct nfs_page *first = nfs_list_entry(head->next);
struct inode *inode = first->wb_context->path.dentry->d_inode;
int flags = (how & FLUSH_SYNC) ? 0 : RPC_TASK_ASYNC;
struct rpc_task_setup task_setup_data = {
.rpc_client = NFS_CLIENT(inode),
.callback_ops = &nfs_commit_ops,
.callback_data = data,
.flags = flags,
};
/* Set up the RPC argument and reply structs
* NB: take care not to mess about with data->commit et al. */
list_splice_init(head, &data->pages);
first = nfs_list_entry(data->pages.next);
inode = first->wb_context->path.dentry->d_inode;
data->inode = inode;
data->cred = first->wb_context->cred;
@ -1168,8 +1177,7 @@ static void nfs_commit_rpcsetup(struct list_head *head,
nfs_fattr_init(&data->fattr);
/* Set up the initial task struct. */
flags = (how & FLUSH_SYNC) ? 0 : RPC_TASK_ASYNC;
rpc_init_task(&data->task, NFS_CLIENT(inode), flags, &nfs_commit_ops, data);
rpc_init_task(&data->task, &task_setup_data);
NFS_PROTO(inode)->commit_setup(data, how);
data->task.tk_priority = flush_task_priority(how);

2
include/linux/sunrpc/clnt.h
View File

@ -126,7 +126,7 @@ int rpcb_register(u32, u32, int, unsigned short, int *);
int rpcb_getport_sync(struct sockaddr_in *, __u32, __u32, int);
void rpcb_getport_async(struct rpc_task *);
void rpc_call_setup(struct rpc_task *, struct rpc_message *, int);
void rpc_call_setup(struct rpc_task *, const struct rpc_message *, int);
int rpc_call_async(struct rpc_clnt *clnt, struct rpc_message *msg,
int flags, const struct rpc_call_ops *tk_ops,

14
include/linux/sunrpc/sched.h
View File

@ -117,6 +117,13 @@ struct rpc_call_ops {
void (*rpc_release)(void *);
};
struct rpc_task_setup {
struct rpc_clnt *rpc_client;
const struct rpc_message *rpc_message;
const struct rpc_call_ops *callback_ops;
void *callback_data;
unsigned short flags;
};
/*
* RPC task flags
@ -236,13 +243,10 @@ struct rpc_wait_queue {
/*
* Function prototypes
*/
struct rpc_task *rpc_new_task(struct rpc_clnt *, int flags,
const struct rpc_call_ops *ops, void *data);
struct rpc_task *rpc_new_task(const struct rpc_task_setup *);
struct rpc_task *rpc_run_task(struct rpc_clnt *clnt, int flags,
const struct rpc_call_ops *ops, void *data);
void rpc_init_task(struct rpc_task *task, struct rpc_clnt *clnt,
int flags, const struct rpc_call_ops *ops,
void *data);
void rpc_init_task(struct rpc_task *task, const struct rpc_task_setup *);
void rpc_put_task(struct rpc_task *);
void rpc_exit_task(struct rpc_task *);
void rpc_release_calldata(const struct rpc_call_ops *, void *);

51
net/sunrpc/clnt.c
View File

@ -524,25 +524,22 @@ void rpc_clnt_sigunmask(struct rpc_clnt *clnt, sigset_t *oldset)
EXPORT_SYMBOL_GPL(rpc_clnt_sigunmask);
static
struct rpc_task *rpc_do_run_task(struct rpc_clnt *clnt,
struct rpc_message *msg,
int flags,
const struct rpc_call_ops *ops,
void *data)
struct rpc_task *rpc_do_run_task(const struct rpc_task_setup *task_setup_data)
{
struct rpc_task *task, *ret;
sigset_t oldset;
task = rpc_new_task(clnt, flags, ops, data);
task = rpc_new_task(task_setup_data);
if (task == NULL) {
rpc_release_calldata(ops, data);
rpc_release_calldata(task_setup_data->callback_ops,
task_setup_data->callback_data);
return ERR_PTR(-ENOMEM);
}
/* Mask signals on synchronous RPC calls and RPCSEC_GSS upcalls */
rpc_task_sigmask(task, &oldset);
if (msg != NULL) {
rpc_call_setup(task, msg, 0);
if (task_setup_data->rpc_message != NULL) {
rpc_call_setup(task, task_setup_data->rpc_message, 0);
if (task->tk_status != 0) {
ret = ERR_PTR(task->tk_status);
rpc_put_task(task);
@ -566,11 +563,17 @@ out:
int rpc_call_sync(struct rpc_clnt *clnt, struct rpc_message *msg, int flags)
{
struct rpc_task *task;
struct rpc_task_setup task_setup_data = {
.rpc_client = clnt,
.rpc_message = msg,
.callback_ops = &rpc_default_ops,
.flags = flags,
};
int status;
BUG_ON(flags & RPC_TASK_ASYNC);
task = rpc_do_run_task(clnt, msg, flags, &rpc_default_ops, NULL);
task = rpc_do_run_task(&task_setup_data);
if (IS_ERR(task))
return PTR_ERR(task);
status = task->tk_status;
@ -592,8 +595,15 @@ rpc_call_async(struct rpc_clnt *clnt, struct rpc_message *msg, int flags,
const struct rpc_call_ops *tk_ops, void *data)
{
struct rpc_task *task;
struct rpc_task_setup task_setup_data = {
.rpc_client = clnt,
.rpc_message = msg,
.callback_ops = tk_ops,
.callback_data = data,
.flags = flags|RPC_TASK_ASYNC,
};
task = rpc_do_run_task(clnt, msg, flags|RPC_TASK_ASYNC, tk_ops, data);
task = rpc_do_run_task(&task_setup_data);
if (IS_ERR(task))
return PTR_ERR(task);
rpc_put_task(task);
@ -612,12 +622,19 @@ struct rpc_task *rpc_run_task(struct rpc_clnt *clnt, int flags,
const struct rpc_call_ops *tk_ops,
void *data)
{
return rpc_do_run_task(clnt, NULL, flags, tk_ops, data);
struct rpc_task_setup task_setup_data = {
.rpc_client = clnt,
.callback_ops = tk_ops,
.callback_data = data,
.flags = flags,
};
return rpc_do_run_task(&task_setup_data);
}
EXPORT_SYMBOL_GPL(rpc_run_task);
void
rpc_call_setup(struct rpc_task *task, struct rpc_message *msg, int flags)
rpc_call_setup(struct rpc_task *task, const struct rpc_message *msg, int flags)
{
task->tk_msg = *msg;
task->tk_flags |= flags;
@ -1527,7 +1544,13 @@ struct rpc_task *rpc_call_null(struct rpc_clnt *clnt, struct rpc_cred *cred, int
.rpc_proc = &rpcproc_null,
.rpc_cred = cred,
};
return rpc_do_run_task(clnt, &msg, flags, &rpc_default_ops, NULL);
struct rpc_task_setup task_setup_data = {
.rpc_client = clnt,
.rpc_message = &msg,
.callback_ops = &rpc_default_ops,
.flags = flags,
};
return rpc_do_run_task(&task_setup_data);
}
EXPORT_SYMBOL_GPL(rpc_call_null);

27
net/sunrpc/sched.c
View File

@ -815,18 +815,15 @@ EXPORT_SYMBOL_GPL(rpc_free);
/*
* Creation and deletion of RPC task structures
*/
void rpc_init_task(struct rpc_task *task, struct rpc_clnt *clnt, int flags, const struct rpc_call_ops *tk_ops, void *calldata)
void rpc_init_task(struct rpc_task *task, const struct rpc_task_setup *task_setup_data)
{
memset(task, 0, sizeof(*task));
setup_timer(&task->tk_timer, (void (*)(unsigned long))rpc_run_timer,
(unsigned long)task);
atomic_set(&task->tk_count, 1);
task->tk_client = clnt;
task->tk_flags = flags;
task->tk_ops = tk_ops;
if (tk_ops->rpc_call_prepare != NULL)
task->tk_action = rpc_prepare_task;
task->tk_calldata = calldata;
task->tk_flags = task_setup_data->flags;
task->tk_ops = task_setup_data->callback_ops;
task->tk_calldata = task_setup_data->callback_data;
INIT_LIST_HEAD(&task->tk_task);
/* Initialize retry counters */
@ -839,15 +836,17 @@ void rpc_init_task(struct rpc_task *task, struct rpc_clnt *clnt, int flags, cons
/* Initialize workqueue for async tasks */
task->tk_workqueue = rpciod_workqueue;
if (clnt) {
kref_get(&clnt->cl_kref);
if (clnt->cl_softrtry)
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 (!clnt->cl_intr)
if (!task->tk_client->cl_intr)
task->tk_flags |= RPC_TASK_NOINTR;
}
BUG_ON(task->tk_ops == NULL);
if (task->tk_ops->rpc_call_prepare != NULL)
task->tk_action = rpc_prepare_task;
/* starting timestamp */
task->tk_start = jiffies;
@ -873,7 +872,7 @@ static void rpc_free_task(struct rcu_head *rcu)
/*
* Create a new task for the specified client.
*/
struct rpc_task *rpc_new_task(struct rpc_clnt *clnt, int flags, const struct rpc_call_ops *tk_ops, void *calldata)
struct rpc_task *rpc_new_task(const struct rpc_task_setup *setup_data)
{
struct rpc_task *task;
@ -881,7 +880,7 @@ struct rpc_task *rpc_new_task(struct rpc_clnt *clnt, int flags, const struct rpc
if (!task)
goto out;
rpc_init_task(task, clnt, flags, tk_ops, calldata);
rpc_init_task(task, setup_data);
dprintk("RPC: allocated task %p\n", task);
task->tk_flags |= RPC_TASK_DYNAMIC;