Release 4.11 fs/nfs/proc.c

/*
 *  linux/fs/nfs/proc.c
 *
 *  Copyright (C) 1992, 1993, 1994  Rick Sladkey
 *
 *  OS-independent nfs remote procedure call functions
 *
 *  Tuned by Alan Cox <A.Cox@swansea.ac.uk> for >3K buffers
 *  so at last we can have decent(ish) throughput off a 
 *  Sun server.
 *
 *  Coding optimized and cleaned up by Florian La Roche.
 *  Note: Error returns are optimized for NFS_OK, which isn't translated via
 *  nfs_stat_to_errno(), but happens to be already the right return code.
 *
 *  Also, the code currently doesn't check the size of the packet, when
 *  it decodes the packet.
 *
 *  Feel free to fix it and mail me the diffs if it worries you.
 *
 *  Completely rewritten to support the new RPC call interface;
 *  rewrote and moved the entire XDR stuff to xdr.c
 *  --Olaf Kirch June 1996
 *
 *  The code below initializes all auto variables explicitly, otherwise
 *  it will fail to work as a module (gcc generates a memset call for an
 *  incomplete struct).
 */

#include <linux/types.h>
#include <linux/param.h>
#include <linux/time.h>
#include <linux/mm.h>
#include <linux/errno.h>
#include <linux/string.h>
#include <linux/in.h>
#include <linux/pagemap.h>
#include <linux/sunrpc/clnt.h>
#include <linux/nfs.h>
#include <linux/nfs2.h>
#include <linux/nfs_fs.h>
#include <linux/nfs_page.h>
#include <linux/lockd/bind.h>
#include <linux/freezer.h>
#include "internal.h"


#define NFSDBG_FACILITY		NFSDBG_PROC

/*
 * Bare-bones access to getattr: this is for nfs_read_super.
 */

static int

nfs_proc_get_root(struct nfs_server *server, struct nfs_fh *fhandle,
		  struct nfs_fsinfo *info)
{
	struct nfs_fattr *fattr = info->fattr;
	struct nfs2_fsstat fsinfo;
	struct rpc_message msg = {
		.rpc_proc	= &nfs_procedures[NFSPROC_GETATTR],
		.rpc_argp	= fhandle,
		.rpc_resp	= fattr,
        };
	int status;

	dprintk("%s: call getattr\n", __func__);
	nfs_fattr_init(fattr);
	status = rpc_call_sync(server->client, &msg, 0);
	/* Retry with default authentication if different */
	if (status && server->nfs_client->cl_rpcclient != server->client)
		status = rpc_call_sync(server->nfs_client->cl_rpcclient, &msg, 0);
	dprintk("%s: reply getattr: %d\n", __func__, status);
	if (status)
		return status;
	dprintk("%s: call statfs\n", __func__);
	msg.rpc_proc = &nfs_procedures[NFSPROC_STATFS];
	msg.rpc_resp = &fsinfo;
	status = rpc_call_sync(server->client, &msg, 0);
	/* Retry with default authentication if different */
	if (status && server->nfs_client->cl_rpcclient != server->client)
		status = rpc_call_sync(server->nfs_client->cl_rpcclient, &msg, 0);
	dprintk("%s: reply statfs: %d\n", __func__, status);
	if (status)
		return status;
	info->rtmax  = NFS_MAXDATA;
	info->rtpref = fsinfo.tsize;
	info->rtmult = fsinfo.bsize;
	info->wtmax  = NFS_MAXDATA;
	info->wtpref = fsinfo.tsize;
	info->wtmult = fsinfo.bsize;
	info->dtpref = fsinfo.tsize;
	info->maxfilesize = 0x7FFFFFFF;
	info->lease_time = 0;
	return 0;
}

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58
20.21%
1
6.67%
Chuck Lever
47
16.38%
1
6.67%
Linus Torvalds (pre-git)
45
15.68%
8
53.33%
David Howells
6
2.09%
1
6.67%
Harvey Harrison
4
1.39%
1
6.67%
Total
287
100.00%
15
100.00%

/*
 * One function for each procedure in the NFS protocol.
 */

static int

nfs_proc_getattr(struct nfs_server *server, struct nfs_fh *fhandle,
		struct nfs_fattr *fattr, struct nfs4_label *label)
{
	struct rpc_message msg = {
		.rpc_proc	= &nfs_procedures[NFSPROC_GETATTR],
		.rpc_argp	= fhandle,
		.rpc_resp	= fattr,
        };
	int	status;

	dprintk("NFS call  getattr\n");
	nfs_fattr_init(fattr);
	status = rpc_call_sync(server->client, &msg, 0);
	dprintk("NFS reply getattr: %d\n", status);
	return status;
}

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3
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28
31.82%
1
12.50%
Trond Myklebust
16
18.18%
3
37.50%
David Quigley
5
5.68%
1
12.50%
Total
88
100.00%
8
100.00%


static int

nfs_proc_setattr(struct dentry *dentry, struct nfs_fattr *fattr,
		 struct iattr *sattr)
{
	struct inode *inode = d_inode(dentry);
	struct nfs_sattrargs	arg = { 
		.fh	= NFS_FH(inode),
		.sattr	= sattr
	};
	struct rpc_message msg = {
		.rpc_proc	= &nfs_procedures[NFSPROC_SETATTR],
		.rpc_argp	= &arg,
		.rpc_resp	= fattr,
        };
	int	status;

	/* Mask out the non-modebit related stuff from attr->ia_mode */
	sattr->ia_mode &= S_IALLUGO;

	dprintk("NFS call  setattr\n");
	if (sattr->ia_valid & ATTR_FILE)
		msg.rpc_cred = nfs_file_cred(sattr->ia_file);
	nfs_fattr_init(fattr);
	status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
	if (status == 0)
		nfs_setattr_update_inode(inode, sattr, fattr);
	dprintk("NFS reply setattr: %d\n", status);
	return status;
}

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38.89%
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56
36.13%
7
38.89%
Chuck Lever
28
18.06%
1
5.56%
Art Haas
4
2.58%
1
5.56%
David Howells
3
1.94%
1
5.56%
Dave Jones
2
1.29%
1
5.56%
Total
155
100.00%
18
100.00%


static int

nfs_proc_lookup(struct inode *dir, const struct qstr *name,
		struct nfs_fh *fhandle, struct nfs_fattr *fattr,
		struct nfs4_label *label)
{
	struct nfs_diropargs	arg = {
		.fh		= NFS_FH(dir),
		.name		= name->name,
		.len		= name->len
	};
	struct nfs_diropok	res = {
		.fh		= fhandle,
		.fattr		= fattr
	};
	struct rpc_message msg = {
		.rpc_proc	= &nfs_procedures[NFSPROC_LOOKUP],
		.rpc_argp	= &arg,
		.rpc_resp	= &res,
        };
	int			status;

	dprintk("NFS call  lookup %s\n", name->name);
	nfs_fattr_init(fattr);
	status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
	dprintk("NFS reply lookup: %d\n", status);
	return status;
}

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Linus Torvalds (pre-git)
92
63.45%
6
50.00%
Chuck Lever
29
20.00%
1
8.33%
Art Haas
10
6.90%
1
8.33%
Dave Jones
5
3.45%
1
8.33%
David Quigley
5
3.45%
1
8.33%
Trond Myklebust
3
2.07%
1
8.33%
Al Viro
1
0.69%
1
8.33%
Total
145
100.00%
12
100.00%



static int nfs_proc_readlink(struct inode *inode, struct page *page,
		unsigned int pgbase, unsigned int pglen)
{
	struct nfs_readlinkargs	args = {
		.fh		= NFS_FH(inode),
		.pgbase		= pgbase,
		.pglen		= pglen,
		.pages		= &page
	};
	struct rpc_message msg = {
		.rpc_proc	= &nfs_procedures[NFSPROC_READLINK],
		.rpc_argp	= &args,
        };
	int			status;

	dprintk("NFS call  readlink\n");
	status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
	dprintk("NFS reply readlink: %d\n", status);
	return status;
}

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Linus Torvalds (pre-git)
57
52.78%
5
50.00%
Chuck Lever
23
21.30%
1
10.00%
Trond Myklebust
21
19.44%
2
20.00%
Art Haas
6
5.56%
1
10.00%
Dave Jones
1
0.93%
1
10.00%
Total
108
100.00%
10
100.00%


struct nfs_createdata {
	
struct nfs_createargs arg;
	
struct nfs_diropok res;
	
struct nfs_fh fhandle;
	
struct nfs_fattr fattr;
};



static struct nfs_createdata *nfs_alloc_createdata(struct inode *dir,
		struct dentry *dentry, struct iattr *sattr)
{
	struct nfs_createdata *data;

	data = kmalloc(sizeof(*data), GFP_KERNEL);

	if (data != NULL) {
		data->arg.fh = NFS_FH(dir);
		data->arg.name = dentry->d_name.name;
		data->arg.len = dentry->d_name.len;
		data->arg.sattr = sattr;
		nfs_fattr_init(&data->fattr);
		data->fhandle.size = 0;
		data->res.fh = &data->fhandle;
		data->res.fattr = &data->fattr;
	}
	return data;
}
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Trond Myklebust
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37.50%
Linus Torvalds (pre-git)
30
22.56%
3
37.50%
Art Haas
12
9.02%
1
12.50%
Dave Jones
5
3.76%
1
12.50%
Total
133
100.00%
8
100.00%

;



static void nfs_free_createdata(const struct nfs_createdata *data)
{
	kfree(data);
}

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static int

nfs_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
		int flags)
{
	struct nfs_createdata *data;
	struct rpc_message msg = {
		.rpc_proc	= &nfs_procedures[NFSPROC_CREATE],
        };
	int status = -ENOMEM;

	dprintk("NFS call  create %pd\n", dentry);
	data = nfs_alloc_createdata(dir, dentry, sattr);
	if (data == NULL)
		goto out;
	msg.rpc_argp = &data->arg;
	msg.rpc_resp = &data->res;
	status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
	nfs_mark_for_revalidate(dir);
	if (status == 0)
		status = nfs_instantiate(dentry, data->res.fh, data->res.fattr, NULL);
	nfs_free_createdata(data);
out:
	dprintk("NFS reply create: %d\n", status);
	return status;
}

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55.56%
Linus Torvalds (pre-git)
25
15.72%
1
11.11%
Chuck Lever
17
10.69%
1
11.11%
David Quigley
2
1.26%
1
11.11%
Al Viro
1
0.63%
1
11.11%
Total
159
100.00%
9
100.00%

/*
 * In NFSv2, mknod is grafted onto the create call.
 */

static int

nfs_proc_mknod(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
	       dev_t rdev)
{
	struct nfs_createdata *data;
	struct rpc_message msg = {
		.rpc_proc	= &nfs_procedures[NFSPROC_CREATE],
        };
	umode_t mode;
	int status = -ENOMEM;

	dprintk("NFS call  mknod %pd\n", dentry);

	mode = sattr->ia_mode;
	if (S_ISFIFO(mode)) {
		sattr->ia_mode = (mode & ~S_IFMT) | S_IFCHR;
		sattr->ia_valid &= ~ATTR_SIZE;
	} else if (S_ISCHR(mode) || S_ISBLK(mode)) {
		sattr->ia_valid |= ATTR_SIZE;
		sattr->ia_size = new_encode_dev(rdev);/* get out your barf bag */
	}

	data = nfs_alloc_createdata(dir, dentry, sattr);
	if (data == NULL)
		goto out;
	msg.rpc_argp = &data->arg;
	msg.rpc_resp = &data->res;

	status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
	nfs_mark_for_revalidate(dir);

	if (status == -EINVAL && S_ISFIFO(mode)) {
		sattr->ia_mode = mode;
		nfs_fattr_init(data->res.fattr);
		status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
	}
	if (status == 0)
		status = nfs_instantiate(dentry, data->res.fh, data->res.fattr, NULL);
	nfs_free_createdata(data);
out:
	dprintk("NFS reply mknod: %d\n", status);
	return status;
}
  
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Linus Torvalds (pre-git)
152
55.88%
7
43.75%
Trond Myklebust
95
34.93%
4
25.00%
Chuck Lever
19
6.99%
1
6.25%
Al Viro
4
1.47%
3
18.75%
David Quigley
2
0.74%
1
6.25%
Total
272
100.00%
16
100.00%


static int

nfs_proc_remove(struct inode *dir, const struct qstr *name)
{
	struct nfs_removeargs arg = {
		.fh = NFS_FH(dir),
		.name = *name,
        };
	struct rpc_message msg = { 
		.rpc_proc = &nfs_procedures[NFSPROC_REMOVE],
		.rpc_argp = &arg,
        };
	int			status;

	dprintk("NFS call  remove %s\n", name->name);
	status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
	nfs_mark_for_revalidate(dir);

	dprintk("NFS reply remove: %d\n", status);
	return status;
}

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Linus Torvalds (pre-git)
74
74.00%
4
33.33%
Trond Myklebust
12
12.00%
3
25.00%
Art Haas
8
8.00%
1
8.33%
Dave Jones
3
3.00%
1
8.33%
Al Viro
1
1.00%
1
8.33%
Linus Torvalds
1
1.00%
1
8.33%
Chuck Lever
1
1.00%
1
8.33%
Total
100
100.00%
12
100.00%


static void

nfs_proc_unlink_setup(struct rpc_message *msg, struct inode *dir)
{
	msg->rpc_proc = &nfs_procedures[NFSPROC_REMOVE];
}

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20
76.92%
2
50.00%
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6
23.08%
2
50.00%
Total
26
100.00%
4
100.00%



static void nfs_proc_unlink_rpc_prepare(struct rpc_task *task, struct nfs_unlinkdata *data)
{
	rpc_call_start(task);
}

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Bryan Schumaker
21
100.00%
1
100.00%
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21
100.00%
1
100.00%



static int nfs_proc_unlink_done(struct rpc_task *task, struct inode *dir)
{
	nfs_mark_for_revalidate(dir);
	return 1;
}

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Trond Myklebust
18
75.00%
3
60.00%
Linus Torvalds (pre-git)
6
25.00%
2
40.00%
Total
24
100.00%
5
100.00%


static void

nfs_proc_rename_setup(struct rpc_message *msg, struct inode *dir)
{
	msg->rpc_proc = &nfs_procedures[NFSPROC_RENAME];
}

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Jeff Layton
25
96.15%
1
50.00%
Linus Torvalds (pre-git)
1
3.85%
1
50.00%
Total
26
100.00%
2
100.00%



static void nfs_proc_rename_rpc_prepare(struct rpc_task *task, struct nfs_renamedata *data)
{
	rpc_call_start(task);
}

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1
100.00%
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21
100.00%
1
100.00%


static int

nfs_proc_rename_done(struct rpc_task *task, struct inode *old_dir,
		     struct inode *new_dir)
{
	nfs_mark_for_revalidate(old_dir);
	nfs_mark_for_revalidate(new_dir);
	return 1;
}

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Jeff Layton
34
100.00%
1
100.00%
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34
100.00%
1
100.00%


static int

nfs_proc_link(struct inode *inode, struct inode *dir, const struct qstr *name)
{
	struct nfs_linkargs	arg = {
		.fromfh		= NFS_FH(inode),
		.tofh		= NFS_FH(dir),
		.toname		= name->name,
		.tolen		= name->len
	};
	struct rpc_message msg = {
		.rpc_proc	= &nfs_procedures[NFSPROC_LINK],
		.rpc_argp	= &arg,
        };
	int			status;

	dprintk("NFS call  link %s\n", name->name);
	status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
	nfs_mark_for_revalidate(inode);
	nfs_mark_for_revalidate(dir);
	dprintk("NFS reply link: %d\n", status);
	return status;
}

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Linus Torvalds (pre-git)
79
62.70%
5
41.67%
Chuck Lever
23
18.25%
1
8.33%
Trond Myklebust
10
7.94%
2
16.67%
Art Haas
8
6.35%
1
8.33%
Dave Jones
4
3.17%
1
8.33%
Jeff Layton
1
0.79%
1
8.33%
Al Viro
1
0.79%
1
8.33%
Total
126
100.00%
12
100.00%


static int

nfs_proc_symlink(struct inode *dir, struct dentry *dentry, struct page *page,
		 unsigned int len, struct iattr *sattr)
{
	struct nfs_fh *fh;
	struct nfs_fattr *fattr;
	struct nfs_symlinkargs	arg = {
		.fromfh		= NFS_FH(dir),
		.fromname	= dentry->d_name.name,
		.fromlen	= dentry->d_name.len,
		.pages		= &page,
		.pathlen	= len,
		.sattr		= sattr
	};
	struct rpc_message msg = {
		.rpc_proc	= &nfs_procedures[NFSPROC_SYMLINK],
		.rpc_argp	= &arg,
        };
	int status = -ENAMETOOLONG;

	dprintk("NFS call  symlink %pd\n", dentry);

	if (len > NFS2_MAXPATHLEN)
		goto out;

	fh = nfs_alloc_fhandle();
	fattr = nfs_alloc_fattr();
	status = -ENOMEM;
	if (fh == NULL || fattr == NULL)
		goto out_free;

	status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
	nfs_mark_for_revalidate(dir);

	/*
         * V2 SYMLINK requests don't return any attributes.  Setting the
         * filehandle size to zero indicates to nfs_instantiate that it
         * should fill in the data with a LOOKUP call on the wire.
         */
	if (status == 0)
		status = nfs_instantiate(dentry, fh, fattr, NULL);

out_free:
	nfs_free_fattr(fattr);
	nfs_free_fhandle(fh);
out:
	dprintk("NFS reply symlink: %d\n", status);
	return status;
}

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Linus Torvalds (pre-git)
77
34.53%
8
42.11%
Chuck Lever
63
28.25%
3
15.79%
Trond Myklebust
61
27.35%
3
15.79%
Art Haas
12
5.38%
1
5.26%
Dave Jones
4
1.79%
1
5.26%
Jesper Juhl
3
1.35%
1
5.26%
David Quigley
2
0.90%
1
5.26%
Al Viro
1
0.45%
1
5.26%
Total
223
100.00%
19
100.00%


static int

nfs_proc_mkdir(struct inode *dir, struct dentry *dentry, struct iattr *sattr)
{
	struct nfs_createdata *data;
	struct rpc_message msg = {
		.rpc_proc	= &nfs_procedures[NFSPROC_MKDIR],
        };
	int status = -ENOMEM;

	dprintk("NFS call  mkdir %pd\n", dentry);
	data = nfs_alloc_createdata(dir, dentry, sattr);
	if (data == NULL)
		goto out;
	msg.rpc_argp = &data->arg;
	msg.rpc_resp = &data->res;

	status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
	nfs_mark_for_revalidate(dir);
	if (status == 0)
		status = nfs_instantiate(dentry, data->res.fh, data->res.fattr, NULL);
	nfs_free_createdata(data);
out:
	dprintk("NFS reply mkdir: %d\n", status);
	return status;
}

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Trond Myklebust
85
54.49%
4
26.67%
Linus Torvalds (pre-git)
51
32.69%
8
53.33%
Chuck Lever
17
10.90%
1
6.67%
David Quigley
2
1.28%
1
6.67%
Al Viro
1
0.64%
1
6.67%
Total
156
100.00%
15
100.00%


static int

nfs_proc_rmdir(struct inode *dir, const struct qstr *name)
{
	struct nfs_diropargs	arg = {
		.fh		= NFS_FH(dir),
		.name		= name->name,
		.len		= name->len
	};
	struct rpc_message msg = {
		.rpc_proc	= &nfs_procedures[NFSPROC_RMDIR],
		.rpc_argp	= &arg,
        };
	int			status;

	dprintk("NFS call  rmdir %s\n", name->name);
	status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
	nfs_mark_for_revalidate(dir);
	dprintk("NFS reply rmdir: %d\n", status);
	return status;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Linus Torvalds (pre-git)
70
64.81%
5
50.00%
Chuck Lever
23
21.30%
1
10.00%
Art Haas
6
5.56%
1
10.00%
Trond Myklebust
5
4.63%
1
10.00%
Dave Jones
3
2.78%
1
10.00%
Al Viro
1
0.93%
1
10.00%
Total
108
100.00%
10
100.00%

/*
 * The READDIR implementation is somewhat hackish - we pass a temporary
 * buffer to the encode function, which installs it in the receive
 * the receive iovec. The decode function just parses the reply to make
 * sure it is syntactically correct; the entries itself are decoded
 * from nfs_readdir by calling the decode_entry function directly.
 */

static int

nfs_proc_readdir(struct dentry *dentry, struct rpc_cred *cred,
		 u64 cookie, struct page **pages, unsigned int count, int plus)
{
	struct inode		*dir = d_inode(dentry);
	struct nfs_readdirargs	arg = {
		.fh		= NFS_FH(dir),
		.cookie		= cookie,
		.count		= count,
		.pages		= pages,
        };
	struct rpc_message	msg = {
		.rpc_proc	= &nfs_procedures[NFSPROC_READDIR],
		.rpc_argp	= &arg,
		.rpc_cred	= cred,
        };
	int			status;

	dprintk("NFS call  readdir %d\n", (unsigned int)cookie);
	status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);

	nfs_invalidate_atime(dir);

	dprintk("NFS reply readdir: %d\n", status);
	return status;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Linus Torvalds (pre-git)
79
56.03%
4
30.77%
Trond Myklebust
37
26.24%
4
30.77%
Art Haas
14
9.93%
1
7.69%
Dave Jones
3
2.13%
1
7.69%
David Howells
3
2.13%
1
7.69%
Bryan Schumaker
3
2.13%
1
7.69%
Chuck Lever
2
1.42%
1
7.69%
Total
141
100.00%
13
100.00%


static int

nfs_proc_statfs(struct nfs_server *server, struct nfs_fh *fhandle,
			struct nfs_fsstat *stat)
{
	struct nfs2_fsstat fsinfo;
	struct rpc_message msg = {
		.rpc_proc	= &nfs_procedures[NFSPROC_STATFS],
		.rpc_argp	= fhandle,
		.rpc_resp	= &fsinfo,
        };
	int	status;

	dprintk("NFS call  statfs\n");
	nfs_fattr_init(stat->fattr);
	status = rpc_call_sync(server->client, &msg, 0);
	dprintk("NFS reply statfs: %d\n", status);
	if (status)
		goto out;
	stat->tbytes = (u64)fsinfo.blocks * fsinfo.bsize;
	stat->fbytes = (u64)fsinfo.bfree  * fsinfo.bsize;
	stat->abytes = (u64)fsinfo.bavail * fsinfo.bsize;
	stat->tfiles = 0;
	stat->ffiles = 0;
	stat->afiles = 0;
out:
	return status;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Trond Myklebust
104
64.20%
2
33.33%
Linus Torvalds (pre-git)
30
18.52%
3
50.00%
Chuck Lever
28
17.28%
1
16.67%
Total
162
100.00%
6
100.00%


static int

nfs_proc_fsinfo(struct nfs_server *server, struct nfs_fh *fhandle,
			struct nfs_fsinfo *info)
{
	struct nfs2_fsstat fsinfo;
	struct rpc_message msg = {
		.rpc_proc	= &nfs_procedures[NFSPROC_STATFS],
		.rpc_argp	= fhandle,
		.rpc_resp	= &fsinfo,
        };
	int	status;

	dprintk("NFS call  fsinfo\n");
	nfs_fattr_init(info->fattr);
	status = rpc_call_sync(server->client, &msg, 0);
	dprintk("NFS reply fsinfo: %d\n", status);
	if (status)
		goto out;
	info->rtmax  = NFS_MAXDATA;
	info->rtpref = fsinfo.tsize;
	info->rtmult = fsinfo.bsize;
	info->wtmax  = NFS_MAXDATA;
	info->wtpref = fsinfo.tsize;
	info->wtmult = fsinfo.bsize;
	info->dtpref = fsinfo.tsize;
	info->maxfilesize = 0x7FFFFFFF;
	info->lease_time = 0;
out:
	return status;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Trond Myklebust
111
68.10%
2
20.00%
Chuck Lever
28
17.18%
1
10.00%
Linus Torvalds (pre-git)
24
14.72%
7
70.00%
Total
163
100.00%
10
100.00%


static int

nfs_proc_pathconf(struct nfs_server *server, struct nfs_fh *fhandle,
		  struct nfs_pathconf *info)
{
	info->max_link = 0;
	info->max_namelen = NFS2_MAXNAMLEN;
	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Trond Myklebust
36
100.00%
1
100.00%
Total
36
100.00%
1
100.00%



static int nfs_read_done(struct rpc_task *task, struct nfs_pgio_header *hdr)
{
	struct inode *inode = hdr->inode;

	nfs_invalidate_atime(inode);
	if (task->tk_status >= 0) {
		nfs_refresh_inode(inode, hdr->res.fattr);
		/* Emulate the eof flag, which isn't normally needed in NFSv2
                 * as it is guaranteed to always return the file attributes
                 */
		if (hdr->args.offset + hdr->res.count >= hdr->res.fattr->size)
			hdr->res.eof = 1;
	}
	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Trond Myklebust
68
80.00%
6
66.67%
Fred Isaman
8
9.41%
1
11.11%
Weston Andros Adamson
8
9.41%
1
11.11%
Sachin S. Prabhu
1
1.18%
1
11.11%
Total
85
100.00%
9
100.00%



static void nfs_proc_read_setup(struct nfs_pgio_header *hdr,
				struct rpc_message *msg)
{
	msg->rpc_proc = &nfs_procedures[NFSPROC_READ];
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Trond Myklebust
24
92.31%
4
80.00%
Weston Andros Adamson
2
7.69%
1
20.00%
Total
26
100.00%
5
100.00%



static int nfs_proc_pgio_rpc_prepare(struct rpc_task *task,
				     struct nfs_pgio_header *hdr)
{
	rpc_call_start(task);
	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Bryan Schumaker
17
70.83%
1
25.00%
Neil Brown
4
16.67%
1
25.00%
Weston Andros Adamson
2
8.33%
1
25.00%
Anna Schumaker
1
4.17%
1
25.00%
Total
24
100.00%
4
100.00%



static int nfs_write_done(struct rpc_task *task, struct nfs_pgio_header *hdr)
{
	if (task->tk_status >= 0)
		nfs_writeback_update_inode(hdr);
	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Trond Myklebust
29
90.62%
5
83.33%
Weston Andros Adamson
3
9.38%
1
16.67%
Total
32
100.00%
6
100.00%



static void nfs_proc_write_setup(struct nfs_pgio_header *hdr,
				 struct rpc_message *msg)
{
	/* Note: NFSv2 ignores @stable and always uses NFS_FILE_SYNC */
	hdr->args.stable = NFS_FILE_SYNC;
	msg->rpc_proc = &nfs_procedures[NFSPROC_WRITE];
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Trond Myklebust
32
91.43%
5
83.33%
Weston Andros Adamson
3
8.57%
1
16.67%
Total
35
100.00%
6
100.00%



static void nfs_proc_commit_rpc_prepare(struct rpc_task *task, struct nfs_commit_data *data)
{
	BUG();
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Fred Isaman
19
100.00%
1
100.00%
Total
19
100.00%
1
100.00%


static void

nfs_proc_commit_setup(struct nfs_commit_data *data, struct rpc_message *msg)
{
	BUG();
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Trond Myklebust
18
94.74%
2
66.67%
Fred Isaman
1
5.26%
1
33.33%
Total
19
100.00%
3
100.00%


static int

nfs_proc_lock(struct file *filp, int cmd, struct file_lock *fl)
{
	struct inode *inode = file_inode(filp);

	return nlmclnt_proc(NFS_SERVER(inode)->nlm_host, cmd, fl);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Trond Myklebust
26
59.09%
1
33.33%
Chuck Lever
15
34.09%
1
33.33%
Al Viro
3
6.82%
1
33.33%
Total
44
100.00%
3
100.00%

/* Helper functions for NFS lock bounds checking */

#define NFS_LOCK32_OFFSET_MAX ((__s32)0x7fffffffUL)


static int nfs_lock_check_bounds(const struct file_lock *fl)
{
	__s32 start, end;

	start = (__s32)fl->fl_start;
	if ((loff_t)start != fl->fl_start)
		goto out_einval;

	if (fl->fl_end != OFFSET_MAX) {
		end = (__s32)fl->fl_end;
		if ((loff_t)end != fl->fl_end)
			goto out_einval;
	} else
		end = NFS_LOCK32_OFFSET_MAX;

	if (start < 0 || start > end)
		goto out_einval;
	return 0;
out_einval:
	return -EINVAL;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Trond Myklebust
100
100.00%
1
100.00%
Total
100
100.00%
1
100.00%



static int nfs_have_delegation(struct inode *inode, fmode_t flags)
{
	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Bryan Schumaker
17
100.00%
1
100.00%
Total
17
100.00%
1
100.00%



static int nfs_return_delegation(struct inode *inode)
{
	nfs_wb_all(inode);
	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Bryan Schumaker
19
100.00%
1
100.00%
Total
19
100.00%
1
100.00%


static const struct inode_operations nfs_dir_inode_operations = {
	.create		= nfs_create,
	.lookup		= nfs_lookup,
	.link		= nfs_link,
	.unlink		= nfs_unlink,
	.symlink	= nfs_symlink,
	.mkdir		= nfs_mkdir,
	.rmdir		= nfs_rmdir,
	.mknod		= nfs_mknod,
	.rename		= nfs_rename,
	.permission	= nfs_permission,
	.getattr	= nfs_getattr,
	.setattr	= nfs_setattr,
};


static const struct inode_operations nfs_file_inode_operations = {
	.permission	= nfs_permission,
	.getattr	= nfs_getattr,
	.setattr	= nfs_setattr,
};


const struct nfs_rpc_ops nfs_v2_clientops = {
	.version	= 2,		       /* protocol version */
	.dentry_ops	= &nfs_dentry_operations,
	.dir_inode_ops	= &nfs_dir_inode_operations,
	.file_inode_ops	= &nfs_file_inode_operations,
	.file_ops	= &nfs_file_operations,
	.getroot	= nfs_proc_get_root,
	.submount	= nfs_submount,
	.try_mount	= nfs_try_mount,
	.getattr	= nfs_proc_getattr,
	.setattr	= nfs_proc_setattr,
	.lookup		= nfs_proc_lookup,
	.access		= NULL,		       /* access */
	.readlink	= nfs_proc_readlink,
	.create		= nfs_proc_create,
	.remove		= nfs_proc_remove,
	.unlink_setup	= nfs_proc_unlink_setup,
	.unlink_rpc_prepare = nfs_proc_unlink_rpc_prepare,
	.unlink_done	= nfs_proc_unlink_done,
	.rename_setup	= nfs_proc_rename_setup,
	.rename_rpc_prepare = nfs_proc_rename_rpc_prepare,
	.rename_done	= nfs_proc_rename_done,
	.link		= nfs_proc_link,
	.symlink	= nfs_proc_symlink,
	.mkdir		= nfs_proc_mkdir,
	.rmdir		= nfs_proc_rmdir,
	.readdir	= nfs_proc_readdir,
	.mknod		= nfs_proc_mknod,
	.statfs		= nfs_proc_statfs,
	.fsinfo		= nfs_proc_fsinfo,
	.pathconf	= nfs_proc_pathconf,
	.decode_dirent	= nfs2_decode_dirent,
	.pgio_rpc_prepare = nfs_proc_pgio_rpc_prepare,
	.read_setup	= nfs_proc_read_setup,
	.read_done	= nfs_read_done,
	.write_setup	= nfs_proc_write_setup,
	.write_done	= nfs_write_done,
	.commit_setup	= nfs_proc_commit_setup,
	.commit_rpc_prepare = nfs_proc_commit_rpc_prepare,
	.lock		= nfs_proc_lock,
	.lock_check_bounds = nfs_lock_check_bounds,
	.close_context	= nfs_close_context,
	.have_delegation = nfs_have_delegation,
	.return_delegation = nfs_return_delegation,
	.alloc_client	= nfs_alloc_client,
	.init_client	= nfs_init_client,
	.free_client	= nfs_free_client,
	.create_server	= nfs_create_server,
	.clone_server	= nfs_clone_server,
};
Overall Contributors
Person
Tokens
Prop
Commits
CommitProp
Trond Myklebust
1410
39.40%
43
40.57%
Linus Torvalds (pre-git)
1102
30.79%
17
16.04%
Chuck Lever
392
10.95%
5
4.72%
Bryan Schumaker
242
6.76%
12
11.32%
Art Haas
118
3.30%
1
0.94%
Jeff Layton
79
2.21%
3
2.83%
EG Keizer
58
1.62%
1
0.94%
Dave Jones
50
1.40%
2
1.89%
Fred Isaman
33
0.92%
2
1.89%
Weston Andros Adamson
18
0.50%
1
0.94%
David Quigley
18
0.50%
1
0.94%
Al Viro
14
0.39%
5
4.72%
David Howells
14
0.39%
4
3.77%
J. Bruce Fields
6
0.17%
1
0.94%
Anna Schumaker
5
0.14%
1
0.94%
Andy Adamson
5
0.14%
1
0.94%
Neil Brown
4
0.11%
1
0.94%
Harvey Harrison
4
0.11%
1
0.94%
Jesper Juhl
3
0.08%
1
0.94%
Dave Hansen
2
0.06%
1
0.94%
Linus Torvalds
1
0.03%
1
0.94%
Sachin S. Prabhu
1
0.03%
1
0.94%
Total
3579
100.00%
106
100.00%
Directory: fs/nfs

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