Release 4.11 net/sunrpc/rpc_pipe.c

/*
 * net/sunrpc/rpc_pipe.c
 *
 * Userland/kernel interface for rpcauth_gss.
 * Code shamelessly plagiarized from fs/nfsd/nfsctl.c
 * and fs/sysfs/inode.c
 *
 * Copyright (c) 2002, Trond Myklebust <trond.myklebust@fys.uio.no>
 *
 */
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/string.h>
#include <linux/pagemap.h>
#include <linux/mount.h>
#include <linux/namei.h>
#include <linux/fsnotify.h>
#include <linux/kernel.h>
#include <linux/rcupdate.h>
#include <linux/utsname.h>

#include <asm/ioctls.h>
#include <linux/poll.h>
#include <linux/wait.h>
#include <linux/seq_file.h>

#include <linux/sunrpc/clnt.h>
#include <linux/workqueue.h>
#include <linux/sunrpc/rpc_pipe_fs.h>
#include <linux/sunrpc/cache.h>
#include <linux/nsproxy.h>
#include <linux/notifier.h>

#include "netns.h"
#include "sunrpc.h"


#define RPCDBG_FACILITY RPCDBG_DEBUG


#define NET_NAME(net)	((net == &init_net) ? " (init_net)" : "")


static struct file_system_type rpc_pipe_fs_type;

static const struct rpc_pipe_ops gssd_dummy_pipe_ops;


static struct kmem_cache *rpc_inode_cachep __read_mostly;


#define RPC_UPCALL_TIMEOUT (30*HZ)

static BLOCKING_NOTIFIER_HEAD(rpc_pipefs_notifier_list);



int rpc_pipefs_notifier_register(struct notifier_block *nb)
{
	return blocking_notifier_chain_cond_register(&rpc_pipefs_notifier_list, nb);
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Stanislav Kinsbursky
19
100.00%
1
100.00%
Total
19
100.00%
1
100.00%


EXPORT_SYMBOL_GPL(rpc_pipefs_notifier_register);



void rpc_pipefs_notifier_unregister(struct notifier_block *nb)
{
	blocking_notifier_chain_unregister(&rpc_pipefs_notifier_list, nb);
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Stanislav Kinsbursky
18
100.00%
1
100.00%
Total
18
100.00%
1
100.00%


EXPORT_SYMBOL_GPL(rpc_pipefs_notifier_unregister);



static void rpc_purge_list(wait_queue_head_t *waitq, struct list_head *head,
		void (*destroy_msg)(struct rpc_pipe_msg *), int err)
{
	struct rpc_pipe_msg *msg;

	if (list_empty(head))
		return;
	do {
		msg = list_entry(head->next, struct rpc_pipe_msg, list);
		list_del_init(&msg->list);
		msg->errno = err;
		destroy_msg(msg);
	} while (!list_empty(head));

	if (waitq)
		wake_up(waitq);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Trond Myklebust
90
93.75%
5
71.43%
Jeff Layton
4
4.17%
1
14.29%
Stanislav Kinsbursky
2
2.08%
1
14.29%
Total
96
100.00%
7
100.00%


static void

rpc_timeout_upcall_queue(struct work_struct *work)
{
	LIST_HEAD(free_list);
	struct rpc_pipe *pipe =
		container_of(work, struct rpc_pipe, queue_timeout.work);
	void (*destroy_msg)(struct rpc_pipe_msg *);
	struct dentry *dentry;

	spin_lock(&pipe->lock);
	destroy_msg = pipe->ops->destroy_msg;
	if (pipe->nreaders == 0) {
		list_splice_init(&pipe->pipe, &free_list);
		pipe->pipelen = 0;
	}
	dentry = dget(pipe->dentry);
	spin_unlock(&pipe->lock);
	rpc_purge_list(dentry ? &RPC_I(d_inode(dentry))->waitq : NULL,
			&free_list, destroy_msg, -ETIMEDOUT);
	dput(dentry);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Trond Myklebust
83
59.29%
3
33.33%
Stanislav Kinsbursky
38
27.14%
3
33.33%
David Howells
15
10.71%
2
22.22%
Jeff Layton
4
2.86%
1
11.11%
Total
140
100.00%
9
100.00%



ssize_t rpc_pipe_generic_upcall(struct file *filp, struct rpc_pipe_msg *msg,
				char __user *dst, size_t buflen)
{
	char *data = (char *)msg->data + msg->copied;
	size_t mlen = min(msg->len - msg->copied, buflen);
	unsigned long left;

	left = copy_to_user(dst, data, mlen);
	if (left == mlen) {
		msg->errno = -EFAULT;
		return -EFAULT;
	}

	mlen -= left;
	msg->copied += mlen;
	msg->errno = 0;
	return mlen;
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Peng Tao
108
100.00%
1
100.00%
Total
108
100.00%
1
100.00%


EXPORT_SYMBOL_GPL(rpc_pipe_generic_upcall);

/**
 * rpc_queue_upcall - queue an upcall message to userspace
 * @pipe: upcall pipe on which to queue given message
 * @msg: message to queue
 *
 * Call with an @inode created by rpc_mkpipe() to queue an upcall.
 * A userspace process may then later read the upcall by performing a
 * read on an open file for this inode.  It is up to the caller to
 * initialize the fields of @msg (other than @msg->list) appropriately.
 */

int

rpc_queue_upcall(struct rpc_pipe *pipe, struct rpc_pipe_msg *msg)
{
	int res = -EPIPE;
	struct dentry *dentry;

	spin_lock(&pipe->lock);
	if (pipe->nreaders) {
		list_add_tail(&msg->list, &pipe->pipe);
		pipe->pipelen += msg->len;
		res = 0;
	} else if (pipe->flags & RPC_PIPE_WAIT_FOR_OPEN) {
		if (list_empty(&pipe->pipe))
			queue_delayed_work(rpciod_workqueue,
					&pipe->queue_timeout,
					RPC_UPCALL_TIMEOUT);
		list_add_tail(&msg->list, &pipe->pipe);
		pipe->pipelen += msg->len;
		res = 0;
	}
	dentry = dget(pipe->dentry);
	spin_unlock(&pipe->lock);
	if (dentry) {
		wake_up(&RPC_I(d_inode(dentry))->waitq);
		dput(dentry);
	}
	return res;
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Trond Myklebust
123
72.35%
5
45.45%
Stanislav Kinsbursky
40
23.53%
4
36.36%
J. Bruce Fields
4
2.35%
1
9.09%
David Howells
3
1.76%
1
9.09%
Total
170
100.00%
11
100.00%


EXPORT_SYMBOL_GPL(rpc_queue_upcall);


static inline void

rpc_inode_setowner(struct inode *inode, void *private)
{
	RPC_I(inode)->private = private;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Trond Myklebust
25
100.00%
2
100.00%
Total
25
100.00%
2
100.00%


static void

rpc_close_pipes(struct inode *inode)
{
	struct rpc_pipe *pipe = RPC_I(inode)->pipe;
	int need_release;
	LIST_HEAD(free_list);

	inode_lock(inode);
	spin_lock(&pipe->lock);
	need_release = pipe->nreaders != 0 || pipe->nwriters != 0;
	pipe->nreaders = 0;
	list_splice_init(&pipe->in_upcall, &free_list);
	list_splice_init(&pipe->pipe, &free_list);
	pipe->pipelen = 0;
	pipe->dentry = NULL;
	spin_unlock(&pipe->lock);
	rpc_purge_list(&RPC_I(inode)->waitq, &free_list, pipe->ops->destroy_msg, -EPIPE);
	pipe->nwriters = 0;
	if (need_release && pipe->ops->release_pipe)
		pipe->ops->release_pipe(inode);
	cancel_delayed_work_sync(&pipe->queue_timeout);
	rpc_inode_setowner(inode, NULL);
	RPC_I(inode)->pipe = NULL;
	inode_unlock(inode);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Trond Myklebust
119
65.03%
6
46.15%
Stanislav Kinsbursky
45
24.59%
5
38.46%
J. Bruce Fields
17
9.29%
1
7.69%
Al Viro
2
1.09%
1
7.69%
Total
183
100.00%
13
100.00%


static struct inode *

rpc_alloc_inode(struct super_block *sb)
{
	struct rpc_inode *rpci;
	rpci = kmem_cache_alloc(rpc_inode_cachep, GFP_KERNEL);
	if (!rpci)
		return NULL;
	return &rpci->vfs_inode;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Trond Myklebust
40
97.56%
2
66.67%
Christoph Lameter
1
2.44%
1
33.33%
Total
41
100.00%
3
100.00%


static void

rpc_i_callback(struct rcu_head *head)
{
	struct inode *inode = container_of(head, struct inode, i_rcu);
	kmem_cache_free(rpc_inode_cachep, RPC_I(inode));
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Trond Myklebust
18
50.00%
1
50.00%
Nicholas Piggin
18
50.00%
1
50.00%
Total
36
100.00%
2
100.00%


static void

rpc_destroy_inode(struct inode *inode)
{
	call_rcu(&inode->i_rcu, rpc_i_callback);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Nicholas Piggin
20
95.24%
1
50.00%
Trond Myklebust
1
4.76%
1
50.00%
Total
21
100.00%
2
100.00%


static int

rpc_pipe_open(struct inode *inode, struct file *filp)
{
	struct rpc_pipe *pipe;
	int first_open;
	int res = -ENXIO;

	inode_lock(inode);
	pipe = RPC_I(inode)->pipe;
	if (pipe == NULL)
		goto out;
	first_open = pipe->nreaders == 0 && pipe->nwriters == 0;
	if (first_open && pipe->ops->open_pipe) {
		res = pipe->ops->open_pipe(inode);
		if (res)
			goto out;
	}
	if (filp->f_mode & FMODE_READ)
		pipe->nreaders++;
	if (filp->f_mode & FMODE_WRITE)
		pipe->nwriters++;
	res = 0;
out:
	inode_unlock(inode);
	return res;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Trond Myklebust
68
49.64%
2
25.00%
J. Bruce Fields
48
35.04%
1
12.50%
Stanislav Kinsbursky
18
13.14%
3
37.50%
Al Viro
2
1.46%
1
12.50%
Nicholas Piggin
1
0.73%
1
12.50%
Total
137
100.00%
8
100.00%


static int

rpc_pipe_release(struct inode *inode, struct file *filp)
{
	struct rpc_pipe *pipe;
	struct rpc_pipe_msg *msg;
	int last_close;

	inode_lock(inode);
	pipe = RPC_I(inode)->pipe;
	if (pipe == NULL)
		goto out;
	msg = filp->private_data;
	if (msg != NULL) {
		spin_lock(&pipe->lock);
		msg->errno = -EAGAIN;
		list_del_init(&msg->list);
		spin_unlock(&pipe->lock);
		pipe->ops->destroy_msg(msg);
	}
	if (filp->f_mode & FMODE_WRITE)
		pipe->nwriters --;
	if (filp->f_mode & FMODE_READ) {
		pipe->nreaders --;
		if (pipe->nreaders == 0) {
			LIST_HEAD(free_list);
			spin_lock(&pipe->lock);
			list_splice_init(&pipe->pipe, &free_list);
			pipe->pipelen = 0;
			spin_unlock(&pipe->lock);
			rpc_purge_list(&RPC_I(inode)->waitq, &free_list,
					pipe->ops->destroy_msg, -EAGAIN);
		}
	}
	last_close = pipe->nwriters == 0 && pipe->nreaders == 0;
	if (last_close && pipe->ops->release_pipe)
		pipe->ops->release_pipe(inode);
out:
	inode_unlock(inode);
	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Trond Myklebust
191
77.02%
5
45.45%
Stanislav Kinsbursky
38
15.32%
4
36.36%
J. Bruce Fields
17
6.85%
1
9.09%
Al Viro
2
0.81%
1
9.09%
Total
248
100.00%
11
100.00%


static ssize_t

rpc_pipe_read(struct file *filp, char __user *buf, size_t len, loff_t *offset)
{
	struct inode *inode = file_inode(filp);
	struct rpc_pipe *pipe;
	struct rpc_pipe_msg *msg;
	int res = 0;

	inode_lock(inode);
	pipe = RPC_I(inode)->pipe;
	if (pipe == NULL) {
		res = -EPIPE;
		goto out_unlock;
	}
	msg = filp->private_data;
	if (msg == NULL) {
		spin_lock(&pipe->lock);
		if (!list_empty(&pipe->pipe)) {
			msg = list_entry(pipe->pipe.next,
					struct rpc_pipe_msg,
					list);
			list_move(&msg->list, &pipe->in_upcall);
			pipe->pipelen -= msg->len;
			filp->private_data = msg;
			msg->copied = 0;
		}
		spin_unlock(&pipe->lock);
		if (msg == NULL)
			goto out_unlock;
	}
	/* NOTE: it is up to the callback to update msg->copied */
	res = pipe->ops->upcall(filp, msg, buf, len);
	if (res < 0 || msg->len == msg->copied) {
		filp->private_data = NULL;
		spin_lock(&pipe->lock);
		list_del_init(&msg->list);
		spin_unlock(&pipe->lock);
		pipe->ops->destroy_msg(msg);
	}
out_unlock:
	inode_unlock(inode);
	return res;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Trond Myklebust
232
88.55%
5
41.67%
Stanislav Kinsbursky
24
9.16%
4
33.33%
Al Viro
5
1.91%
2
16.67%
Linus Torvalds
1
0.38%
1
8.33%
Total
262
100.00%
12
100.00%


static ssize_t

rpc_pipe_write(struct file *filp, const char __user *buf, size_t len, loff_t *offset)
{
	struct inode *inode = file_inode(filp);
	int res;

	inode_lock(inode);
	res = -EPIPE;
	if (RPC_I(inode)->pipe != NULL)
		res = RPC_I(inode)->pipe->ops->downcall(filp, buf, len);
	inode_unlock(inode);
	return res;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Trond Myklebust
69
80.23%
1
16.67%
Stanislav Kinsbursky
11
12.79%
2
33.33%
Al Viro
5
5.81%
2
33.33%
Linus Torvalds
1
1.16%
1
16.67%
Total
86
100.00%
6
100.00%


static unsigned int

rpc_pipe_poll(struct file *filp, struct poll_table_struct *wait)
{
	struct inode *inode = file_inode(filp);
	struct rpc_inode *rpci = RPC_I(inode);
	unsigned int mask = POLLOUT | POLLWRNORM;

	poll_wait(filp, &rpci->waitq, wait);

	inode_lock(inode);
	if (rpci->pipe == NULL)
		mask |= POLLERR | POLLHUP;
	else if (filp->private_data || !list_empty(&rpci->pipe->pipe))
		mask |= POLLIN | POLLRDNORM;
	inode_unlock(inode);
	return mask;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Trond Myklebust
68
62.96%
1
14.29%
Stanislav Kinsbursky
31
28.70%
3
42.86%
Al Viro
5
4.63%
2
28.57%
J. Bruce Fields
4
3.70%
1
14.29%
Total
108
100.00%
7
100.00%


static long

rpc_pipe_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
{
	struct inode *inode = file_inode(filp);
	struct rpc_pipe *pipe;
	int len;

	switch (cmd) {
	case FIONREAD:
		inode_lock(inode);
		pipe = RPC_I(inode)->pipe;
		if (pipe == NULL) {
			inode_unlock(inode);
			return -EPIPE;
		}
		spin_lock(&pipe->lock);
		len = pipe->pipelen;
		if (filp->private_data) {
			struct rpc_pipe_msg *msg;
			msg = filp->private_data;
			len += msg->len - msg->copied;
		}
		spin_unlock(&pipe->lock);
		inode_unlock(inode);
		return put_user(len, (int __user *)arg);
	default:
		return -EINVAL;
	}
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Trond Myklebust
94
62.25%
2
20.00%
Arnd Bergmann
27
17.88%
1
10.00%
Stanislav Kinsbursky
23
15.23%
4
40.00%
Al Viro
7
4.64%
3
30.00%
Total
151
100.00%
10
100.00%


static const struct file_operations rpc_pipe_fops = {
	.owner		= THIS_MODULE,
	.llseek		= no_llseek,
	.read		= rpc_pipe_read,
	.write		= rpc_pipe_write,
	.poll		= rpc_pipe_poll,
	.unlocked_ioctl	= rpc_pipe_ioctl,
	.open		= rpc_pipe_open,
	.release	= rpc_pipe_release,
};


static int

rpc_show_info(struct seq_file *m, void *v)
{
	struct rpc_clnt *clnt = m->private;

	rcu_read_lock();
	seq_printf(m, "RPC server: %s\n",
			rcu_dereference(clnt->cl_xprt)->servername);
	seq_printf(m, "service: %s (%d) version %d\n", clnt->cl_program->name,
			clnt->cl_prog, clnt->cl_vers);
	seq_printf(m, "address: %s\n", rpc_peeraddr2str(clnt, RPC_DISPLAY_ADDR));
	seq_printf(m, "protocol: %s\n", rpc_peeraddr2str(clnt, RPC_DISPLAY_PROTO));
	seq_printf(m, "port: %s\n", rpc_peeraddr2str(clnt, RPC_DISPLAY_PORT));
	rcu_read_unlock();
	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Trond Myklebust
80
71.43%
4
57.14%
J. Bruce Fields
23
20.54%
2
28.57%
Chuck Lever
9
8.04%
1
14.29%
Total
112
100.00%
7
100.00%


static int

rpc_info_open(struct inode *inode, struct file *file)
{
	struct rpc_clnt *clnt = NULL;
	int ret = single_open(file, rpc_show_info, NULL);

	if (!ret) {
		struct seq_file *m = file->private_data;

		spin_lock(&file->f_path.dentry->d_lock);
		if (!d_unhashed(file->f_path.dentry))
			clnt = RPC_I(inode)->private;
		if (clnt != NULL && atomic_inc_not_zero(&clnt->cl_count)) {
			spin_unlock(&file->f_path.dentry->d_lock);
			m->private = clnt;
		} else {
			spin_unlock(&file->f_path.dentry->d_lock);
			single_release(inode, file);
			ret = -EINVAL;
		}
	}
	return ret;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Trond Myklebust
148
100.00%
2
100.00%
Total
148
100.00%
2
100.00%


static int

rpc_info_release(struct inode *inode, struct file *file)
{
	struct seq_file *m = file->private_data;
	struct rpc_clnt *clnt = (struct rpc_clnt *)m->private;

	if (clnt)
		rpc_release_client(clnt);
	return single_release(inode, file);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Trond Myklebust
56
100.00%
1
100.00%
Total
56
100.00%
1
100.00%


static const struct file_operations rpc_info_operations = {
	.owner		= THIS_MODULE,
	.open		= rpc_info_open,
	.read		= seq_read,
	.llseek		= seq_lseek,
	.release	= rpc_info_release,
};


/*
 * Description of fs contents.
 */

struct rpc_filelist {
	
const char *name;
	
const struct file_operations *i_fop;
	
umode_t mode;
};


static struct inode *

rpc_get_inode(struct super_block *sb, umode_t mode)
{
	struct inode *inode = new_inode(sb);
	if (!inode)
		return NULL;
	inode->i_ino = get_next_ino();
	inode->i_mode = mode;
	inode->i_atime = inode->i_mtime = inode->i_ctime = current_time(inode);
	switch (mode & S_IFMT) {
	case S_IFDIR:
		inode->i_fop = &simple_dir_operations;
		inode->i_op = &simple_dir_inode_operations;
		inc_nlink(inode);
	default:
		break;
	}
	return inode;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Trond Myklebust
84
84.85%
3
42.86%
Christoph Hellwig
7
7.07%
1
14.29%
Deepa Dinamani
4
4.04%
1
14.29%
Dave Hansen
3
3.03%
1
14.29%
Jeff Layton
1
1.01%
1
14.29%
Total
99
100.00%
7
100.00%



static int __rpc_create_common(struct inode *dir, struct dentry *dentry,
			       umode_t mode,
			       const struct file_operations *i_fop,
			       void *private)
{
	struct inode *inode;

	d_drop(dentry);
	inode = rpc_get_inode(dir->i_sb, mode);
	if (!inode)
		goto out_err;
	inode->i_ino = iunique(dir->i_sb, 100);
	if (i_fop)
		inode->i_fop = i_fop;
	if (private)
		rpc_inode_setowner(inode, private);
	d_add(dentry, inode);
	return 0;
out_err:
	printk(KERN_WARNING "%s: %s failed to allocate inode for dentry %pd\n",
			__FILE__, __func__, dentry);
	dput(dentry);
	return -ENOMEM;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Trond Myklebust
124
99.20%
2
66.67%
Al Viro
1
0.80%
1
33.33%
Total
125
100.00%
3
100.00%



static int __rpc_create(struct inode *dir, struct dentry *dentry,
			umode_t mode,
			const struct file_operations *i_fop,
			void *private)
{
	int err;

	err = __rpc_create_common(dir, dentry, S_IFREG | mode, i_fop, private);
	if (err)
		return err;
	fsnotify_create(dir, dentry);
	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Trond Myklebust
66
100.00%
1
100.00%
Total
66
100.00%
1
100.00%



static int __rpc_mkdir(struct inode *dir, struct dentry *dentry,
		       umode_t mode,
		       const struct file_operations *i_fop,
		       void *private)
{
	int err;

	err = __rpc_create_common(dir, dentry, S_IFDIR | mode, i_fop, private);
	if (err)
		return err;
	inc_nlink(dir);
	fsnotify_mkdir(dir, dentry);
	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Trond Myklebust
71
100.00%
1
100.00%
Total
71
100.00%
1
100.00%


static void

init_pipe(struct rpc_pipe *pipe)
{
	pipe->nreaders = 0;
	pipe->nwriters = 0;
	INIT_LIST_HEAD(&pipe->in_upcall);
	INIT_LIST_HEAD(&pipe->in_downcall);
	INIT_LIST_HEAD(&pipe->pipe);
	pipe->pipelen = 0;
	INIT_DELAYED_WORK(&pipe->queue_timeout,
			    rpc_timeout_upcall_queue);
	pipe->ops = NULL;
	spin_lock_init(&pipe->lock);
	pipe->dentry = NULL;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Stanislav Kinsbursky
57
68.67%
2
66.67%
Trond Myklebust
26
31.33%
1
33.33%
Total
83
100.00%
3
100.00%



void rpc_destroy_pipe_data(struct rpc_pipe *pipe)
{
	kfree(pipe);
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Stanislav Kinsbursky
12
80.00%
1
50.00%
Trond Myklebust
3
20.00%
1
50.00%
Total
15
100.00%
2
100.00%


EXPORT_SYMBOL_GPL(rpc_destroy_pipe_data);



struct rpc_pipe *rpc_mkpipe_data(const struct rpc_pipe_ops *ops, int flags)
{
	struct rpc_pipe *pipe;

	pipe = kzalloc(sizeof(struct rpc_pipe), GFP_KERNEL);
	if (!pipe)
		return ERR_PTR(-ENOMEM);
	init_pipe(pipe);
	pipe->ops = ops;
	pipe->flags = flags;
	return pipe;
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Stanislav Kinsbursky
48
72.73%
2
66.67%
Trond Myklebust
18
27.27%
1
33.33%
Total
66
100.00%
3
100.00%


EXPORT_SYMBOL_GPL(rpc_mkpipe_data);



static int __rpc_mkpipe_dentry(struct inode *dir