Release 4.10 fs/ncpfs/inode.c

/*
 *  inode.c
 *
 *  Copyright (C) 1995, 1996 by Volker Lendecke
 *  Modified for big endian by J.F. Chadima and David S. Miller
 *  Modified 1997 Peter Waltenberg, Bill Hawes, David Woodhouse for 2.1 dcache
 *  Modified 1998 Wolfram Pienkoss for NLS
 *  Modified 2000 Ben Harris, University of Cambridge for NFS NS meta-info
 *
 */


#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

#include <linux/module.h>

#include <linux/uaccess.h>
#include <asm/byteorder.h>

#include <linux/time.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/string.h>
#include <linux/stat.h>
#include <linux/errno.h>
#include <linux/file.h>
#include <linux/fcntl.h>
#include <linux/slab.h>
#include <linux/vmalloc.h>
#include <linux/init.h>
#include <linux/vfs.h>
#include <linux/mount.h>
#include <linux/seq_file.h>
#include <linux/namei.h>

#include <net/sock.h>

#include "ncp_fs.h"
#include "getopt.h"


#define NCP_DEFAULT_FILE_MODE 0600

#define NCP_DEFAULT_DIR_MODE 0700

#define NCP_DEFAULT_TIME_OUT 10

#define NCP_DEFAULT_RETRY_COUNT 20

static void ncp_evict_inode(struct inode *);
static void ncp_put_super(struct super_block *);
static int  ncp_statfs(struct dentry *, struct kstatfs *);
static int  ncp_show_options(struct seq_file *, struct dentry *);


static struct kmem_cache * ncp_inode_cachep;



static struct inode *ncp_alloc_inode(struct super_block *sb)
{
	struct ncp_inode_info *ei;
	ei = (struct ncp_inode_info *)kmem_cache_alloc(ncp_inode_cachep, GFP_KERNEL);
	if (!ei)
		return NULL;
	return &ei->vfs_inode;
}

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linus torvalds
45
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1
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christoph lameter
christoph lameter
1
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1
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static void ncp_i_callback(struct rcu_head *head)
{
	struct inode *inode = container_of(head, struct inode, i_rcu);
	kmem_cache_free(ncp_inode_cachep, NCP_FINFO(inode));
}

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linus torvalds
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nick piggin
nick piggin
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static void ncp_destroy_inode(struct inode *inode)
{
	call_rcu(&inode->i_rcu, ncp_i_callback);
}

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static void init_once(void *foo)
{
	struct ncp_inode_info *ei = (struct ncp_inode_info *) foo;

	mutex_init(&ei->open_mutex);
	inode_init_once(&ei->vfs_inode);
}

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linus torvalds
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christoph lameter
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1
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ingo molnar
ingo molnar
2
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static int init_inodecache(void)
{
	ncp_inode_cachep = kmem_cache_create("ncp_inode_cache",
					     sizeof(struct ncp_inode_info),
					     0, (SLAB_RECLAIM_ACCOUNT|
						SLAB_MEM_SPREAD|SLAB_ACCOUNT),
					     init_once);
	if (ncp_inode_cachep == NULL)
		return -ENOMEM;
	return 0;
}

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linus torvalds
39
84.78%
1
20.00%
paul jackson
paul jackson
4
8.70%
2
40.00%
vladimir davydov
vladimir davydov
2
4.35%
1
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andrew morton
andrew morton
1
2.17%
1
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46
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5
100.00%



static void destroy_inodecache(void)
{
	/*
         * Make sure all delayed rcu free inodes are flushed before we
         * destroy cache.
         */
	rcu_barrier();
	kmem_cache_destroy(ncp_inode_cachep);
}

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linus torvalds
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kirill a. shutemov
kirill a. shutemov
4
23.53%
1
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17
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2
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static int ncp_remount(struct super_block *sb, int *flags, char* data)
{
	sync_filesystem(sb);
	*flags |= MS_NODIRATIME;
	return 0;
}

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al viro
27
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theodore tso
theodore tso
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static const struct super_operations ncp_sops =
{
	.alloc_inode	= ncp_alloc_inode,
	.destroy_inode	= ncp_destroy_inode,
	.drop_inode	= generic_delete_inode,
	.evict_inode	= ncp_evict_inode,
	.put_super	= ncp_put_super,
	.statfs		= ncp_statfs,
	.remount_fs	= ncp_remount,
	.show_options	= ncp_show_options,
};

/*
 * Fill in the ncpfs-specific information in the inode.
 */


static void ncp_update_dirent(struct inode *inode, struct ncp_entry_info *nwinfo)
{
	NCP_FINFO(inode)->DosDirNum = nwinfo->i.DosDirNum;
	NCP_FINFO(inode)->dirEntNum = nwinfo->i.dirEntNum;
	NCP_FINFO(inode)->volNumber = nwinfo->volume;
}

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3
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petr vandrovec*
petr vandrovec*
4
7.55%
2
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53
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5
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void ncp_update_inode(struct inode *inode, struct ncp_entry_info *nwinfo)
{
	ncp_update_dirent(inode, nwinfo);
	NCP_FINFO(inode)->nwattr = nwinfo->i.attributes;
	NCP_FINFO(inode)->access = nwinfo->access;
	memcpy(NCP_FINFO(inode)->file_handle, nwinfo->file_handle,
			sizeof(nwinfo->file_handle));
	ncp_dbg(1, "updated %s, volnum=%d, dirent=%u\n",
		nwinfo->i.entryName, NCP_FINFO(inode)->volNumber,
		NCP_FINFO(inode)->dirEntNum);
}

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4
66.67%
petr vandrovec*
petr vandrovec*
21
22.34%
1
16.67%
joe perches
joe perches
4
4.26%
1
16.67%
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94
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6
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static void ncp_update_dates(struct inode *inode, struct nw_info_struct *nwi)
{
	/* NFS namespace mode overrides others if it's set. */
	ncp_dbg(1, "(%s) nfs.mode=0%o\n", nwi->entryName, nwi->nfs.mode);
	if (nwi->nfs.mode) {
		/* XXX Security? */
		inode->i_mode = nwi->nfs.mode;
	}

	inode->i_blocks = (i_size_read(inode) + NCP_BLOCK_SIZE - 1) >> NCP_BLOCK_SHIFT;

	inode->i_mtime.tv_sec = ncp_date_dos2unix(nwi->modifyTime, nwi->modifyDate);
	inode->i_ctime.tv_sec = ncp_date_dos2unix(nwi->creationTime, nwi->creationDate);
	inode->i_atime.tv_sec = ncp_date_dos2unix(0, nwi->lastAccessDate);
	inode->i_atime.tv_nsec = 0;
	inode->i_mtime.tv_nsec = 0;
	inode->i_ctime.tv_nsec = 0;
}

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petr vandrovec*
petr vandrovec*
107
73.79%
2
33.33%
andi kleen
andi kleen
30
20.69%
1
16.67%
joe perches
joe perches
4
2.76%
1
16.67%
petr vandrovec
petr vandrovec
3
2.07%
1
16.67%
pre-git
pre-git
1
0.69%
1
16.67%
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static void ncp_update_attrs(struct inode *inode, struct ncp_entry_info *nwinfo)
{
	struct nw_info_struct *nwi = &nwinfo->i;
	struct ncp_server *server = NCP_SERVER(inode);

	if (nwi->attributes & aDIR) {
		inode->i_mode = server->m.dir_mode;
		/* for directories dataStreamSize seems to be some
                   Object ID ??? */
		i_size_write(inode, NCP_BLOCK_SIZE);
	} else {
		u32 size;

		inode->i_mode = server->m.file_mode;
		size = le32_to_cpu(nwi->dataStreamSize);
		i_size_write(inode, size);
#ifdef CONFIG_NCPFS_EXTRAS
		if ((server->m.flags & (NCP_MOUNT_EXTRAS|NCP_MOUNT_SYMLINKS)) 
		 && (nwi->attributes & aSHARED)) {
			switch (nwi->attributes & (aHIDDEN|aSYSTEM)) {
				case aHIDDEN:
					if (server->m.flags & NCP_MOUNT_SYMLINKS) {
						if (/* (size >= NCP_MIN_SYMLINK_SIZE)
                                                 && */ (size <= NCP_MAX_SYMLINK_SIZE)) {
							inode->i_mode = (inode->i_mode & ~S_IFMT) | S_IFLNK;
							NCP_FINFO(inode)->flags |= NCPI_KLUDGE_SYMLINK;
							break;
						}
					}
					/* FALLTHROUGH */
				case 0:
					if (server->m.flags & NCP_MOUNT_EXTRAS)
						inode->i_mode |= S_IRUGO;
					break;
				case aSYSTEM:
					if (server->m.flags & NCP_MOUNT_EXTRAS)
						inode->i_mode |= (inode->i_mode >> 2) & S_IXUGO;
					break;
				/* case aSYSTEM|aHIDDEN: */
				default:
					/* reserved combination */
					break;
			}
		}
#endif
	}
	if (nwi->attributes & aRONLY) inode->i_mode &= ~S_IWUGO;
}

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87.31%
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petr vandrovec
17
6.54%
1
16.67%
petr vandrovec*
petr vandrovec*
16
6.15%
2
33.33%
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260
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6
100.00%



void ncp_update_inode2(struct inode* inode, struct ncp_entry_info *nwinfo)
{
	NCP_FINFO(inode)->flags = 0;
	if (!atomic_read(&NCP_FINFO(inode)->opened)) {
		NCP_FINFO(inode)->nwattr = nwinfo->i.attributes;
		ncp_update_attrs(inode, nwinfo);
	}

	ncp_update_dates(inode, &nwinfo->i);
	ncp_update_dirent(inode, nwinfo);
}

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petr vandrovec*
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2
50.00%
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pre-git
24
31.17%
2
50.00%
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77
100.00%
4
100.00%

/*
 * Fill in the inode based on the ncp_entry_info structure.  Used only for brand new inodes.
 */


static void ncp_set_attr(struct inode *inode, struct ncp_entry_info *nwinfo)
{
	struct ncp_server *server = NCP_SERVER(inode);

	NCP_FINFO(inode)->flags = 0;
	
	ncp_update_attrs(inode, nwinfo);

	ncp_dbg(2, "inode->i_mode = %u\n", inode->i_mode);

	set_nlink(inode, 1);
	inode->i_uid = server->m.uid;
	inode->i_gid = server->m.gid;

	ncp_update_dates(inode, &nwinfo->i);
	ncp_update_inode(inode, nwinfo);
}

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pre-git
72
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6
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petr vandrovec*
petr vandrovec*
17
17.53%
2
20.00%
joe perches
joe perches
4
4.12%
1
10.00%
miklos szeredi
miklos szeredi
4
4.12%
1
10.00%
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97
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10
100.00%

#if defined(CONFIG_NCPFS_EXTRAS) || defined(CONFIG_NCPFS_NFS_NS)

static const struct inode_operations ncp_symlink_inode_operations = {
	.get_link	= page_get_link,
	.setattr	= ncp_notify_change,
};
#endif

/*
 * Get a new inode.
 */

struct inode * 

ncp_iget(struct super_block *sb, struct ncp_entry_info *info)
{
	struct inode *inode;

	if (info == NULL) {
		pr_err("%s: info is NULL\n", __func__);
		return NULL;
	}

	inode = new_inode(sb);
	if (inode) {
		atomic_set(&NCP_FINFO(inode)->opened, info->opened);

		inode->i_ino = info->ino;
		ncp_set_attr(inode, info);
		if (S_ISREG(inode->i_mode)) {
			inode->i_op = &ncp_file_inode_operations;
			inode->i_fop = &ncp_file_operations;
		} else if (S_ISDIR(inode->i_mode)) {
			inode->i_op = &ncp_dir_inode_operations;
			inode->i_fop = &ncp_dir_operations;
#ifdef CONFIG_NCPFS_NFS_NS
		} else if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) || S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) {
			init_special_inode(inode, inode->i_mode,
				new_decode_dev(info->i.nfs.rdev));
#endif
#if defined(CONFIG_NCPFS_EXTRAS) || defined(CONFIG_NCPFS_NFS_NS)
		} else if (S_ISLNK(inode->i_mode)) {
			inode->i_op = &ncp_symlink_inode_operations;
			inode_nohighmem(inode);
			inode->i_data.a_ops = &ncp_symlink_aops;
#endif
		} else {
			make_bad_inode(inode);
		}
		insert_inode_hash(inode);
	} else
		pr_err("%s: iget failed!\n", __func__);
	return inode;
}

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pre-git
175
66.79%
9
64.29%
petr vandrovec*
petr vandrovec*
71
27.10%
1
7.14%
joe perches
joe perches
8
3.05%
1
7.14%
al viro
al viro
8
3.05%
3
21.43%
Total
262
100.00%
14
100.00%


static void

ncp_evict_inode(struct inode *inode)
{
	truncate_inode_pages_final(&inode->i_data);
	clear_inode(inode);

	if (S_ISDIR(inode->i_mode)) {
		ncp_dbg(2, "put directory %ld\n", inode->i_ino);
	}

	if (ncp_make_closed(inode) != 0) {
		/* We can't do anything but complain. */
		pr_err("%s: could not close\n", __func__);
	}
}

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pre-git
pre-git
43
66.15%
3
33.33%
joe perches
joe perches
8
12.31%
2
22.22%
mark fasheh
mark fasheh
7
10.77%
1
11.11%
al viro
al viro
5
7.69%
1
11.11%
jan kara
jan kara
1
1.54%
1
11.11%
johannes weiner
johannes weiner
1
1.54%
1
11.11%
Total
65
100.00%
9
100.00%



static void ncp_stop_tasks(struct ncp_server *server) {
	struct sock* sk = server->ncp_sock->sk;

	lock_sock(sk);
	sk->sk_error_report = server->error_report;
	sk->sk_data_ready   = server->data_ready;
	sk->sk_write_space  = server->write_space;
	release_sock(sk);
	del_timer_sync(&server->timeout_tm);

	flush_work(&server->rcv.tq);
	if (sk->sk_socket->type == SOCK_STREAM)
		flush_work(&server->tx.tq);
	else
		flush_work(&server->timeout_tq);
}

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petr vandrovec*
petr vandrovec*
52
50.49%
1
20.00%
tejun heo
tejun heo
38
36.89%
2
40.00%
petr vandrovec
petr vandrovec
10
9.71%
1
20.00%
arnaldo carvalho de melo
arnaldo carvalho de melo
3
2.91%
1
20.00%
Total
103
100.00%
5
100.00%



static int  ncp_show_options(struct seq_file *seq, struct dentry *root)
{
	struct ncp_server *server = NCP_SBP(root->d_sb);
	unsigned int tmp;

	if (!uid_eq(server->m.uid, GLOBAL_ROOT_UID))
		seq_printf(seq, ",uid=%u",
			   from_kuid_munged(&init_user_ns, server->m.uid));
	if (!gid_eq(server->m.gid, GLOBAL_ROOT_GID))
		seq_printf(seq, ",gid=%u",
			   from_kgid_munged(&init_user_ns, server->m.gid));
	if (!uid_eq(server->m.mounted_uid, GLOBAL_ROOT_UID))
		seq_printf(seq, ",owner=%u",
			   from_kuid_munged(&init_user_ns, server->m.mounted_uid));
	tmp = server->m.file_mode & S_IALLUGO;
	if (tmp != NCP_DEFAULT_FILE_MODE)
		seq_printf(seq, ",mode=0%o", tmp);
	tmp = server->m.dir_mode & S_IALLUGO;
	if (tmp != NCP_DEFAULT_DIR_MODE)
		seq_printf(seq, ",dirmode=0%o", tmp);
	if (server->m.time_out != NCP_DEFAULT_TIME_OUT * HZ / 100) {
		tmp = server->m.time_out * 100 / HZ;
		seq_printf(seq, ",timeout=%u", tmp);
	}
	if (server->m.retry_count != NCP_DEFAULT_RETRY_COUNT)
		seq_printf(seq, ",retry=%u", server->m.retry_count);
	if (server->m.flags != 0)
		seq_printf(seq, ",flags=%lu", server->m.flags);
	if (server->m.wdog_pid != NULL)
		seq_printf(seq, ",wdogpid=%u", pid_vnr(server->m.wdog_pid));

	return 0;
}

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miklos szeredi
253
86.35%
1
33.33%
eric w. biederman
eric w. biederman
36
12.29%
1
33.33%
al viro
al viro
4
1.37%
1
33.33%
Total
293
100.00%
3
100.00%


static const struct ncp_option ncp_opts[] = {
	{ "uid",	OPT_INT,	'u' },
	{ "gid",	OPT_INT,	'g' },
	{ "owner",	OPT_INT,	'o' },
	{ "mode",	OPT_INT,	'm' },
	{ "dirmode",	OPT_INT,	'd' },
	{ "timeout",	OPT_INT,	't' },
	{ "retry",	OPT_INT,	'r' },
	{ "flags",	OPT_INT,	'f' },
	{ "wdogpid",	OPT_INT,	'w' },
	{ "ncpfd",	OPT_INT,	'n' },
	{ "infofd",	OPT_INT,	'i' },	/* v5 */
	{ "version",	OPT_INT,	'v' },
	{ NULL,		0,		0 } };



static int ncp_parse_options(struct ncp_mount_data_kernel *data, char *options) {
	int optval;
	char *optarg;
	unsigned long optint;
	int version = 0;
	int ret;

	data->flags = 0;
	data->int_flags = 0;
	data->mounted_uid = GLOBAL_ROOT_UID;
	data->wdog_pid = NULL;
	data->ncp_fd = ~0;
	data->time_out = NCP_DEFAULT_TIME_OUT;
	data->retry_count = NCP_DEFAULT_RETRY_COUNT;
	data->uid = GLOBAL_ROOT_UID;
	data->gid = GLOBAL_ROOT_GID;
	data->file_mode = NCP_DEFAULT_FILE_MODE;
	data->dir_mode = NCP_DEFAULT_DIR_MODE;
	data->info_fd = -1;
	data->mounted_vol[0] = 0;
	
	while ((optval = ncp_getopt("ncpfs", &options, ncp_opts, NULL, &optarg, &optint)) != 0) {
		ret = optval;
		if (ret < 0)
			goto err;
		switch (optval) {
			case 'u':
				data->uid = make_kuid(current_user_ns(), optint);
				if (!uid_valid(data->uid)) {
					ret = -EINVAL;
					goto err;
				}
				break;
			case 'g':
				data->gid = make_kgid(current_user_ns(), optint);
				if (!gid_valid(data->gid)) {
					ret = -EINVAL;
					goto err;
				}
				break;
			case 'o':
				data->mounted_uid = make_kuid(current_user_ns(), optint);
				if (!uid_valid(data->mounted_uid)) {
					ret = -EINVAL;
					goto err;
				}
				break;
			case 'm':
				data->file_mode = optint;
				break;
			case 'd':
				data->dir_mode = optint;
				break;
			case 't':
				data->time_out = optint;
				break;
			case 'r':
				data->retry_count = optint;
				break;
			case 'f':
				data->flags = optint;
				break;
			case 'w':
				data->wdog_pid = find_get_pid(optint);
				break;
			case 'n':
				data->ncp_fd = optint;
				break;
			case 'i':
				data->info_fd = optint;
				break;
			case 'v':
				ret = -ECHRNG;
				if (optint < NCP_MOUNT_VERSION_V4)
					goto err;
				if (optint > NCP_MOUNT_VERSION_V5)
					goto err;
				version = optint;
				break;
			
		}
	}
	return 0;
err:
	put_pid(data->wdog_pid);
	data->wdog_pid = NULL;
	return ret;
}

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petr vandrovec*
petr vandrovec*
278
68.30%
2
28.57%
eric w. biederman
eric w. biederman
104
25.55%
3
42.86%
wei yongjun
wei yongjun
21
5.16%
1
14.29%
miklos szeredi
miklos szeredi
4
0.98%
1
14.29%
Total
407
100.00%
7
100.00%



static int ncp_fill_super(struct super_block *sb, void *raw_data, int silent)
{
	struct ncp_mount_data_kernel data;
	struct ncp_server *server;
	struct inode *root_inode;
	struct socket *sock;
	int error;
	int default_bufsize;
#ifdef CONFIG_NCPFS_PACKET_SIGNING
	int options;
#endif
	struct ncp_entry_info finfo;

	memset(&data, 0, sizeof(data));
	server = kzalloc(sizeof(struct ncp_server), GFP_KERNEL);
	if (!server)
		return -ENOMEM;
	sb->s_fs_info = server;

	error = -EFAULT;
	if (raw_data == NULL)
		goto out;
	switch (*(int*)raw_data) {
		case NCP_MOUNT_VERSION:
			{
				struct ncp_mount_data* md = (struct ncp_mount_data*)raw_data;

				data.flags = md->flags;
				data.int_flags = NCP_IMOUNT_LOGGEDIN_POSSIBLE;
				data.mounted_uid = make_kuid(current_user_ns(), md->mounted_uid);
				data.wdog_pid = find_get_pid(md->wdog_pid);
				data.ncp_fd = md->ncp_fd;
				data.time_out = md->time_out;
				data.retry_count = md->retry_count;
				data.uid = make_kuid(current_user_ns(), md->uid);
				data.gid = make_kgid(current_user_ns(), md->gid);
				data.file_mode = md->file_mode;
				data.dir_mode = md->dir_mode;
				data.info_fd = -1;
				memcpy(data.mounted_vol, md->mounted_vol,
					NCP_VOLNAME_LEN+1);
			}
			break;
		case NCP_MOUNT_VERSION_V4:
			{
				struct ncp_mount_data_v4* md = (struct ncp_mount_data_v4*)raw_data;

				data.flags = md->flags;
				data.mounted_uid = make_kuid(current_user_ns(), md->mounted_uid);
				data.wdog_pid = find_get_pid(md->wdog_pid);
				data.ncp_fd = md->ncp_fd;
				data.time_out = md->time_out;
				data.retry_count = md->retry_count;
				data.uid = make_kuid(current_user_ns(), md->uid);
				data.gid = make_kgid(current_user_ns(), md->gid);
				data.file_mode = md->file_mode;
				data.dir_mode = md->dir_mode;
				data.info_fd = -1;
			}
			break;
		default:
			error = -ECHRNG;
			if (memcmp(raw_data, "vers", 4) == 0) {
				error = ncp_parse_options(&data, raw_data);
			}
			if (error)
				goto out;
			break;
	}
	error = -EINVAL;
	if (!uid_valid(data.mounted_uid) || !uid_valid(data.uid) ||
	    !gid_valid(data.gid))
		goto out;
	sock = sockfd_lookup(data.ncp_fd, &error);
	if (!sock)
		goto out;

	if (sock->type == SOCK_STREAM)
		default_bufsize = 0xF000;
	else
		default_bufsize = 1024;

	sb->s_flags |= MS_NODIRATIME;	/* probably even noatime */
	sb->s_maxbytes = 0xFFFFFFFFU;
	sb->s_blocksize = 1024;	/* Eh...  Is this correct? */
	sb->s_blocksize_bits = 10;
	sb->s_magic = NCP_SUPER_MAGIC;
	sb->s_op = &ncp_sops;
	sb->s_d_op = &ncp_dentry_operations;
	sb->s_bdi = &server->bdi;

	server = NCP_SBP(sb);
	memset(server, 0, sizeof(*server));

	error = bdi_setup_and_register(&server->bdi, "ncpfs");
	if (error)
		goto out_fput;

	server->ncp_sock = sock;
	
	if (data.info_fd != -1) {
		struct socket *info_sock = sockfd_lookup(data.info_fd, &error);
		if (!info_sock)
			goto out_bdi;
		server->info_sock = info_sock;
		error = -EBADFD;
		if (info_sock->type != SOCK_STREAM)
			goto out_fput2;
	}

/*      server->lock = 0;       */
	mutex_init(&server->mutex);
	server->packet = NULL;
/*      server->buffer_size = 0;        */
/*      server->conn_status = 0;        */
/*      server->root_dentry = NULL;     */
/*      server->root_setuped = 0;       */
	mutex_init(&server->root_setup_lock);
#ifdef CONFIG_NCPFS_PACKET_SIGNING
/*      server->sign_wanted = 0;        */
/*      server->sign_active = 0;        */
#endif
	init_rwsem(&server->auth_rwsem);
	server->auth.auth_type = NCP_AUTH_NONE;
/*      server->auth.object_name_len = 0;       */
/*      server->auth.object_name = NULL;        */
/*      server->auth.object_type = 0;           */
/*      server->priv.len = 0;                   */
/*      server->priv.data = NULL;               */

	server->m = data;
	/* Although anything producing this is buggy, it happens
           now because of PATH_MAX changes.. */
	if (server->m.time_out < 1) {
		server->m.time_out = 10;
		pr_info("You need to recompile your ncpfs utils..\n");
	}
	server->m.time_out = server->m.time_out * HZ / 100;
	server->m.file_mode = (server->m.file_mode & S_IRWXUGO) | S_IFREG;
	server->m.dir_mode = (server->m.dir_mode & S_IRWXUGO) | S_IFDIR;

#ifdef CONFIG_NCPFS_NLS
	/* load the default NLS charsets */
	server->nls_vol = load_nls_default();
	server->nls_io = load_nls_default();
#endif /* CONFIG_NCPFS_NLS */

	atomic_set(&server->dentry_ttl, 0);	/* no caching */

	INIT_LIST_HEAD(&server->tx.requests);
	mutex_init(&server->rcv.creq_mutex);
	server->tx.creq		= NULL;
	server->rcv.creq	= NULL;

	init_timer(&server->timeout_tm);

#undef NCP_PACKET_SIZE

#define NCP_PACKET_SIZE 131072
	error = -ENOMEM;
	server->packet_size = NCP_PACKET_SIZE;
	server->packet = vmalloc(NCP_PACKET_SIZE);
	if (server->packet == NULL)
		goto out_nls;
	server->txbuf = vmalloc(NCP_PACKET_SIZE);
	if (server->txbuf == NULL)
		goto out_packet;
	server->rxbuf = vmalloc(NCP_PACKET_SIZE);
	if (server->rxbuf == NULL)
		goto out_txbuf;

	lock_sock(sock->sk);
	server->data_ready	= sock->sk->sk_data_ready;
	server->write_space	= sock->sk->sk_write_space;
	server->error_report	= sock->sk->sk_error_report;
	sock->sk->sk_user_data	= server;
	sock->sk->sk_data_ready	  = ncp_tcp_data_ready;
	sock->sk->sk_error_report = ncp_tcp_error_report;
	if (sock->type == SOCK_STREAM) {
		server->rcv.ptr = (unsigned char*)&server->rcv.buf;
		server->rcv.len = 10;
		server->rcv.state = 0;
		INIT_WORK(&server->rcv.tq, ncp_tcp_rcv_proc);
		INIT_WORK(&server->tx.tq, ncp_tcp_tx_proc);
		sock->sk->sk_write_space = ncp_tcp_write_space;
	} else {
		INIT_WORK(&server->rcv.tq, ncpdgram_rcv_proc);
		INIT_WORK(&server->timeout_tq, ncpdgram_timeout_proc);
		server->timeout_tm.data = (unsigned long)server;
		server->timeout_tm.function = ncpdgram_timeout_call;
	}
	release_sock(sock->sk);

	ncp_lock_server(server);
	error = ncp_connect(server);
	ncp_unlock_server(server);
	if (error < 0)
		goto out_rxbuf;
	ncp_dbg(1, "NCP_SBP(sb) = %p\n", NCP_SBP(sb));

	error = -EMSGSIZE;	/* -EREMOTESIDEINCOMPATIBLE */
#ifdef CONFIG_NCPFS_PACKET_SIGNING
	if (ncp_negotiate_size_and_options(server, default_bufsize,
		NCP_DEFAULT_OPTIONS, &(server->buffer_size), &options) == 0)
	{
		if (options != NCP_DEFAULT_OPTIONS)
		{
			if (ncp_negotiate_size_and_options(server, 
				default_bufsize,
				options & 2, 
				&(server->buffer_size), &options) != 0)
				
			{
				goto out_disconnect;
			}
		}
		ncp_lock_server(server);
		if (options & 2)
			server->sign_wanted = 1;
		ncp_unlock_server(server);
	}
	else 
#endif	/* CONFIG_NCPFS_PACKET_SIGNING */
	if (ncp_negotiate_buffersize(server, default_bufsize,
  				     &(server->buffer_size)) != 0)
		goto out_disconnect;
	ncp_dbg(1, "bufsize = %d\n", server->buffer_size);

	memset(&finfo, 0, sizeof(finfo));
	finfo.i.attributes	= aDIR;
	finfo.i.dataStreamSize	= 0;	/* ignored */
	finfo.i.dirEntNum	= 0;
	finfo.i.DosDirNum	= 0;
#ifdef CONFIG_NCPFS_SMALLDOS
	finfo.i.NSCreator	= NW_NS_DOS;
#endif
	finfo.volume		= NCP_NUMBER_OF_VOLUMES;
	/* set dates of mountpoint to Jan 1, 1986; 00:00 */
	finfo.i.creationTime	= finfo.i.modifyTime
				= cpu_to_le16(0x0000);
	finfo.i.creationDate	= finfo.i.modifyDate
				= finfo.i.lastAccessDate
				= cpu_to_le16(0x0C21);
	finfo.i.nameLen		= 0;
	finfo.i.entryName[0]	= '\0';

	finfo.opened		= 0;
	finfo.ino		= 2;	/* tradition */

	server->name_space[finfo.volume] = NW_NS_DOS;

	error = -ENOMEM;
        root_inode = ncp_iget(sb, &finfo);
        if (!root_inode)
		goto out_disconnect;
	ncp_dbg(1, "root vol=%d\n", NCP_FINFO(root_inode)->volNumber);
	sb->s_root = d_make_root(root_inode);
        if (!sb->s_root)
		goto out_disconnect;
	return 0;

out_disconnect:
	ncp_lock_server(server);
	ncp_disconnect(server);
	ncp_unlock_server(server);
out_rxbuf:
	ncp_stop_tasks(server);
	vfree(server->rxbuf);
out_txbuf:
	vfree(server->txbuf);
out_packet:
	vfree(server->packet);
out_nls:
#ifdef CONFIG_NCPFS_NLS
	unload_nls(server->nls_io);
	unload_nls(server->nls_vol);
#endif
	mutex_destroy(&server->rcv.creq_mutex);
	mutex_destroy(&server->root_setup_lock);
	mutex_destroy(&server->mutex);
out_fput2:
	if (server->info_sock)
		sockfd_put(server->info_sock);
out_bdi:
	bdi_destroy(&server->bdi);
out_fput:
	sockfd_put(sock);
out:
	put_pid(data.wdog_pid);
	sb->s_fs_info = NULL;
	kfree(server);
	return error;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
pre-git
pre-git
930
55.72%
13
29.55%
petr vandrovec*
petr vandrovec*
324
19.41%
5
11.36%
petr vandrovec
petr vandrovec
109
6.53%
2
4.55%
eric w. biederman
eric w. biederman
82
4.91%
3
6.82%
pierre ossman
pierre ossman
60
3.59%
1
2.27%
al viro
al viro
42
2.52%
6
13.64%
brian gerst
brian gerst
38
2.28%
2
4.55%
jens axboe
jens axboe
36
2.16%
1
2.27%
andrew morton
andrew morton
18
1.08%
2
4.55%
joe perches
joe perches
13
0.78%
3
6.82%
ingo molnar
ingo molnar
8
0.48%
2
4.55%
djalal harouni
djalal harouni
4
0.24%
1
2.27%
arnaldo carvalho de melo
arnaldo carvalho de melo
3
0.18%
1
2.27%
lucas de marchi
lucas de marchi
1
0.06%
1
2.27%
panagiotis issaris*
panagiotis issaris*
1
0.06%
1
2.27%
Total
1669
100.00%
44
100.00%



static void delayed_free(struct rcu_head *p)
{
	struct ncp_server *server = container_of(p, struct ncp_server, rcu);
#ifdef CONFIG_NCPFS_NLS
	/* unload the NLS charsets */
	unload_nls(server->nls_vol);
	unload_nls(server->nls_io);
#endif /* CONFIG_NCPFS_NLS */
	kfree(server);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
al viro
al viro
52
100.00%
1
100.00%
Total
52
100.00%
1
100.00%



static void ncp_put_super(struct super_block *sb)
{
	struct ncp_server *server = NCP_SBP(sb);

	ncp_lock_server(server);
	ncp_disconnect(server);
	ncp_unlock_server(server);

	ncp_stop_tasks(server);

	mutex_destroy(&server->rcv.creq_mutex);
	mutex_destroy(&server->root_setup_lock);
	mutex_destroy(&server->mutex);

	if (server->info_sock)
		sockfd_put(server->info_sock);
	sockfd_put(server->ncp_sock);
	kill_pid(server->m.wdog_pid, SIGTERM, 1);
	put_pid(server->m.wdog_pid);

	bdi_destroy(&server->bdi);
	kfree(server->priv.data);
	kfree(server->auth.object_name);
	vfree(server->rxbuf);
	vfree(server->txbuf);
	vfree(server->packet);
	call_rcu(&server->rcu, delayed_free);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
pre-git
pre-git
76
45.78%
6
37.50%
petr vandrovec
petr vandrovec
26
15.66%
1
6.25%
petr vandrovec*
petr vandrovec*
15
9.04%
2
12.50%
pierre ossman
pierre ossman
14
8.43%
1
6.25%
al viro
al viro
11
6.63%
2
12.50%
eric w. biederman
eric w. biederman
10
6.02%
1
6.25%
jens axboe
jens axboe
8
4.82%
1
6.25%
brian gerst
brian gerst
4
2.41%
1
6.25%
pekka j enberg
pekka j enberg
2
1.20%
1
6.25%
Total
166
100.00%
16
100.00%



static int ncp_statfs(struct dentry *dentry, struct kstatfs *buf)
{
	struct dentry* d;
	struct inode* i;
	struct ncp_inode_info* ni;
	struct ncp_server* s;
	struct ncp_volume_info vi;
	struct super_block *sb = dentry->d_sb;
	int err;
	__u8 dh;
	
	d = sb->s_root;
	if (!d) {
		goto dflt;
	}
	i = d_inode(d);
	if (!i) {
		goto dflt;
	}
	ni = NCP_FINFO(i);
	if (!ni) {
		goto dflt;
	}
	s = NCP_SBP(sb);
	if (!s) {
		goto dflt;
	}
	if (!s->m.mounted_vol[0]) {
		goto dflt;
	}

	err = ncp_dirhandle_alloc(s, ni->volNumber, ni->DosDirNum, &dh);
	if (err) {
		goto dflt;
	}
	err = ncp_get_directory_info(s, dh, &vi);
	ncp_dirhandle_free(s, dh);
	if (err) {
		goto dflt;
	}
	buf->f_type = NCP_SUPER_MAGIC;
	buf->f_bsize = vi.sectors_per_block * 512;
	buf->f_blocks = vi.total_blocks;
	buf->f_bfree = vi.free_blocks;
	buf->f_bavail = vi.free_blocks;
	buf->f_files = vi.total_dir_entries;
	buf->f_ffree = vi.available_dir_entries;
	buf->f_namelen = 12;
	return 0;

	/* We cannot say how much disk space is left on a mounted
           NetWare Server, because free space is distributed over
           volumes, and the current user might have disk quotas. So
           free space is not that simple to determine. Our decision
           here is to err conservatively. */

dflt:;
	buf->f_type = NCP_SUPER_MAGIC;
	buf->f_bsize = NCP_BLOCK_SIZE;
	buf->f_blocks = 0;
	buf->f_bfree = 0;
	buf->f_bavail = 0;
	buf->f_namelen = 12;
	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
petr vandrovec*
petr vandrovec*
234
77.48%
1
11.11%
pre-git
pre-git
53
17.55%
5
55.56%
david howells
david howells
14
4.64%
2
22.22%
andrew morton
andrew morton
1
0.33%
1
11.11%
Total
302
100.00%
9
100.00%



int ncp_notify_change(struct dentry *dentry, struct iattr *attr)
{
	struct inode *inode = d_inode(dentry);
	int result = 0;
	__le32 info_mask;
	struct nw_modify_dos_info info;
	struct ncp_server *server;

	result = -EIO;

	server = NCP_SERVER(inode);
	if (!server)	/* How this could happen? */
		goto out;

	result = -EPERM;
	if (IS_DEADDIR(d_inode(dentry)))
		goto out;

	/* ageing the dentry to force validation */
	ncp_age_dentry(server, dentry);

	result = setattr_prepare(dentry, attr);
	if (result < 0)
		goto out;

	result = -EPERM;
	if ((attr->ia_valid & ATTR_UID) && !uid_eq(attr->ia_uid, server->m.uid))
		goto out;

	if ((attr->ia_valid & ATTR_GID) && !gid_eq(attr->ia_gid, server->m.gid))
		goto out;

	if (((attr->ia_valid & ATTR_MODE) &&
	     (attr->ia_mode &
	      ~(S_IFREG | S_IFDIR | S_IRWXUGO))))
		goto out;

	info_mask = 0;
	memset(&info, 0, sizeof(info));

#if 1 
        if ((attr->ia_valid & ATTR_MODE) != 0)
        {
		umode_t newmode = attr->ia_mode;

		info_mask |= DM_ATTRIBUTES;

                if (S_ISDIR(inode->i_mode)) {
                	newmode &= server->m.dir_mode;
		} else {
#ifdef CONFIG_NCPFS_EXTRAS			
			if (server->m.flags & NCP_MOUNT_EXTRAS) {
				/* any non-default execute bit set */
				if (newmode & ~server->m.file_mode & S_IXUGO)
					info.attributes |= aSHARED | aSYSTEM;
				/* read for group/world and not in default file_mode */
				else if (newmode & ~server->m.file_mode & S_IRUGO)
					info.attributes |= aSHARED;
			} else
#endif
				newmode &= server->m.file_mode;			
                }
                if (newmode & S_IWUGO)
                	info.attributes &= ~(aRONLY|aRENAMEINHIBIT|aDELETEINHIBIT);
                else
			info.attributes |=  (aRONLY|aRENAMEINHIBIT|aDELETEINHIBIT);

#ifdef CONFIG_NCPFS_NFS_NS
		if (ncp_is_nfs_extras(server, NCP_FINFO(inode)->volNumber)) {
			result = ncp_modify_nfs_info(server,
						     NCP_FINFO(inode)->volNumber,
						     NCP_FINFO(inode)->dirEntNum,
						     attr->ia_mode, 0);
			if (result != 0)
				goto out;
			info.attributes &= ~(aSHARED | aSYSTEM);
			{
				/* mark partial success */
				struct iattr tmpattr;
				
				tmpattr.ia_valid = ATTR_MODE;
				tmpattr.ia_mode = attr->ia_mode;

				setattr_copy(inode, &tmpattr);
				mark_inode_dirty(inode);
			}
		}
#endif
        }
#endif

	/* Do SIZE before attributes, otherwise mtime together with size does not work...
         */
	if ((attr->ia_valid & ATTR_SIZE) != 0) {
		int written;

		ncp_dbg(1, "trying to change size to %llu\n", attr->ia_size);

		if ((result = ncp_make_open(inode, O_WRONLY)) < 0) {
			result = -EACCES;
			goto out;
		}
		ncp_write_kernel(NCP_SERVER(inode), NCP_FINFO(inode)->file_handle,
			  attr->ia_size, 0, "", &written);

		/* According to ndir, the changes only take effect after
                   closing the file */
		ncp_inode_close(inode);
		result = ncp_make_closed(inode);
		if (result)
			goto out;

		if (attr->ia_size != i_size_read(inode)) {
			truncate_setsize(inode, attr->ia_size);
			mark_inode_dirty(inode);
		}
	}
	if ((attr->ia_valid & ATTR_CTIME) != 0) {
		info_mask |= (DM_CREATE_TIME | DM_CREATE_DATE);
		ncp_date_unix2dos(attr->ia_ctime.tv_sec,
			     &info.creationTime, &info.creationDate);
	}
	if ((attr->ia_valid & ATTR_MTIME) != 0) {
		info_mask |= (DM_MODIFY_TIME | DM_MODIFY_DATE);
		ncp_date_unix2dos(attr->ia_mtime.tv_sec,
				  &info.modifyTime, &info.modifyDate);
	}
	if ((attr->ia_valid & ATTR_ATIME) != 0) {
		__le16 dummy;
		info_mask |= (DM_LAST_ACCESS_DATE);
		ncp_date_unix2dos(attr->ia_atime.tv_sec,
				  &dummy, &info.lastAccessDate);
	}
	if (info_mask != 0) {
		result = ncp_modify_file_or_subdir_dos_info(NCP_SERVER(inode),
				      inode, info_mask, &info);
		if (result != 0) {
			if (info_mask == (DM_CREATE_TIME | DM_CREATE_DATE)) {
				/* NetWare seems not to allow this. I
                                   do not know why. So, just tell the
                                   user everything went fine. This is
                                   a terrible hack, but I do not know
                                   how to do this correctly. */
				result = 0;
			} else
				goto out;
		}
#ifdef CONFIG_NCPFS_STRONG		
		if ((!result) && (info_mask & DM_ATTRIBUTES))
			NCP_FINFO(inode)->nwattr = info.attributes;
#endif
	}
	if (result)
		goto out;

	setattr_copy(inode, attr);
	mark_inode_dirty(inode);

out:
	if (result > 0)
		result = -EACCES;
	return result;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
pre-git
pre-git
491
58.80%
11
39.29%
petr vandrovec*
petr vandrovec*
245
29.34%
2
7.14%
christoph hellwig
christoph hellwig
32
3.83%
1
3.57%
al viro
al viro
17
2.04%
3
10.71%
petr vandrovec
petr vandrovec
11
1.32%
1
3.57%
eric w. biederman
eric w. biederman
10
1.20%
1
3.57%
andrew morton
andrew morton
8
0.96%
2
7.14%
andi kleen
andi kleen
6
0.72%
1
3.57%
david howells
david howells
6
0.72%
1
3.57%
joe perches
joe perches
4
0.48%
2
7.14%
jan kara
jan kara
2
0.24%
1
3.57%
dave hansen
dave hansen
2
0.24%
1
3.57%
marco stornelli
marco stornelli
1
0.12%
1
3.57%
Total
835
100.00%
28
100.00%



static struct dentry *ncp_mount(struct file_system_type *fs_type,
	int flags, const char *dev_name, void *data)
{
	return mount_nodev(fs_type, flags, data, ncp_fill_super);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
al viro
al viro
30
81.08%
2
40.00%
pre-git
pre-git
6
16.22%
2
40.00%
andries brouwer
andries brouwer
1
2.70%
1
20.00%
Total
37
100.00%
5
100.00%


static struct file_system_type ncp_fs_type = {
	.owner		= THIS_MODULE,
	.name		= "ncpfs",
	.mount		= ncp_mount,
	.kill_sb	= kill_anon_super,
	.fs_flags	= FS_BINARY_MOUNTDATA,
};
MODULE_ALIAS_FS("ncpfs");



static int __init init_ncp_fs(void)
{
	int err;
	ncp_dbg(1, "called\n");

	err = init_inodecache();
	if (err)
		goto out1;
	err = register_filesystem(&ncp_fs_type);
	if (err)
		goto out;
	return 0;
out:
	destroy_inodecache();
out1:
	return err;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
linus torvalds
linus torvalds
37
62.71%
1
16.67%
pre-git
pre-git
18
30.51%
4
66.67%
joe perches
joe perches
4
6.78%
1
16.67%
Total
59
100.00%
6
100.00%



static void __exit exit_ncp_fs(void)
{
	ncp_dbg(1, "called\n");
	unregister_filesystem(&ncp_fs_type);
	destroy_inodecache();
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
pre-git
pre-git
18
72.00%
3
60.00%
joe perches
joe perches
4
16.00%
1
20.00%
linus torvalds
linus torvalds
3
12.00%
1
20.00%
Total
25
100.00%
5
100.00%

module_init(init_ncp_fs)
module_exit(exit_ncp_fs)
MODULE_LICENSE("GPL");
Overall Contributors
Person
Tokens
Prop
Commits
CommitProp
pre-git
pre-git
2356
41.92%
34
26.77%
petr vandrovec*
petr vandrovec*
1581
28.13%
10
7.87%
miklos szeredi
miklos szeredi
305
5.43%
2
1.57%
eric w. biederman
eric w. biederman
247
4.40%
4
3.15%
al viro
al viro
229
4.07%
21
16.54%
linus torvalds
linus torvalds
207
3.68%
5
3.94%
petr vandrovec
petr vandrovec
177
3.15%
2
1.57%
pierre ossman
pierre ossman
74
1.32%
1
0.79%
joe perches
joe perches
60
1.07%
3
2.36%
jens axboe
jens axboe
44
0.78%
1
0.79%
brian gerst
brian gerst
42
0.75%
2
1.57%
nick piggin
nick piggin
42
0.75%
2
1.57%
tejun heo
tejun heo
38
0.68%
2
1.57%
andi kleen
andi kleen
36
0.64%
1
0.79%
christoph hellwig
christoph hellwig
35
0.62%
2
1.57%
andrew morton
andrew morton
29
0.52%
6
4.72%
wei yongjun
wei yongjun
21
0.37%
1
0.79%
david howells
david howells
21
0.37%
2
1.57%
rusty russell
rusty russell
13
0.23%
1
0.79%
ingo molnar
ingo molnar
10
0.18%
2
1.57%
mark fasheh
mark fasheh
7
0.12%
1
0.79%
arnaldo carvalho de melo
arnaldo carvalho de melo
6
0.11%
1
0.79%
christoph lameter
christoph lameter
6
0.11%
3
2.36%
theodore tso
theodore tso
5
0.09%
1
0.79%
djalal harouni
djalal harouni
4
0.07%
1
0.79%
paul jackson
paul jackson
4
0.07%
2
1.57%
kirill a. shutemov
kirill a. shutemov
4
0.07%
1
0.79%
jan kara
jan kara
3
0.05%
2
1.57%
dave hansen
dave hansen
2
0.04%
1
0.79%
vladimir davydov
vladimir davydov
2
0.04%
1
0.79%
pekka j enberg
pekka j enberg
2
0.04%
1
0.79%
panagiotis issaris*
panagiotis issaris*
1
0.02%
1
0.79%
marco stornelli
marco stornelli
1
0.02%
1
0.79%
andries brouwer
andries brouwer
1
0.02%
1
0.79%
josef 'jeff' sipek
josef 'jeff' sipek
1
0.02%
1
0.79%
dave jones
dave jones
1
0.02%
1
0.79%
johannes weiner
johannes weiner
1
0.02%
1
0.79%
arjan van de ven
arjan van de ven
1
0.02%
1
0.79%
lucas de marchi
lucas de marchi
1
0.02%
1
0.79%
Total
5620
100.00%
127
100.00%
Directory: fs/ncpfs

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