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C++ d_alloc_name函数代码示例

原作者: [db:作者] 来自: [db:来源] 收藏 邀请

本文整理汇总了C++中d_alloc_name函数的典型用法代码示例。如果您正苦于以下问题：C++ d_alloc_name函数的具体用法？C++ d_alloc_name怎么用？C++ d_alloc_name使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。



在下文中一共展示了d_alloc_name函数的14个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的C++代码示例。

示例1: d_alloc_name

static struct dentry *xenfs_create_file(struct super_block *sb,
					struct dentry *parent,
					const char *name,
					const struct file_operations *fops,
					void *data,
					int mode)
{
	struct dentry *dentry;
	struct inode *inode;

	dentry = d_alloc_name(parent, name);
	if (!dentry)
		return NULL;

	inode = xenfs_make_inode(sb, S_IFREG | mode);
	if (!inode) {
		dput(dentry);
		return NULL;
	}

	inode->i_fop = fops;
	inode->i_private = data;

	d_add(dentry, inode);
	return dentry;
}
开发者ID:MiniBlu，项目名称:cm11_kernel_htc_msm8974a3ul，代码行数:26，代码来源:super.c


示例2: sel_make_avc_files

static int sel_make_avc_files(struct dentry *dir)
{
	int i;
	static struct tree_descr files[] = {
		{ "cache_threshold",
		  &sel_avc_cache_threshold_ops, S_IRUGO|S_IWUSR },
		{ "hash_stats", &sel_avc_hash_stats_ops, S_IRUGO },
#ifdef CONFIG_SECURITY_SELINUX_AVC_STATS
		{ "cache_stats", &sel_avc_cache_stats_ops, S_IRUGO },
#endif
	};

	for (i = 0; i < ARRAY_SIZE(files); i++) {
		struct inode *inode;
		struct dentry *dentry;

		dentry = d_alloc_name(dir, files[i].name);
		if (!dentry)
			return -ENOMEM;

		inode = sel_make_inode(dir->d_sb, S_IFREG|files[i].mode);
		if (!inode)
			return -ENOMEM;

		inode->i_fop = files[i].ops;
		inode->i_ino = ++sel_last_ino;
		d_add(dentry, inode);
	}

	return 0;
}
开发者ID:020gzh，项目名称:linux，代码行数:31，代码来源:selinuxfs.c


示例3: sel_make_initcon_files

static int sel_make_initcon_files(struct dentry *dir)
{
	int i, ret = 0;

	for (i = 1; i <= SECINITSID_NUM; i++) {
		struct inode *inode;
		struct dentry *dentry;
		dentry = d_alloc_name(dir, security_get_initial_sid_context(i));
		if (!dentry) {
			ret = -ENOMEM;
			goto out;
		}

		inode = sel_make_inode(dir->d_sb, S_IFREG|S_IRUGO);
		if (!inode) {
			ret = -ENOMEM;
			goto out;
		}
		inode->i_fop = &sel_initcon_ops;
		inode->i_ino = i|SEL_INITCON_INO_OFFSET;
		d_add(dentry, inode);
	}
out:
	return ret;
}
开发者ID:LouZiffer，项目名称:m900_kernel_cupcake-SDX，代码行数:25，代码来源:selinuxfs.c


示例4: proc_setup_self

int proc_setup_self(struct super_block *s)
{
	struct inode *root_inode = s->s_root->d_inode;
	struct pid_namespace *ns = s->s_fs_info;
	struct dentry *self;
	
	mutex_lock(&root_inode->i_mutex);
	self = d_alloc_name(s->s_root, "self");
	if (self) {
		struct inode *inode = new_inode_pseudo(s);
		if (inode) {
			inode->i_ino = self_inum;
			inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
			inode->i_mode = S_IFLNK | S_IRWXUGO;
			inode->i_uid = GLOBAL_ROOT_UID;
			inode->i_gid = GLOBAL_ROOT_GID;
			inode->i_op = &proc_self_inode_operations;
			d_add(self, inode);
		} else {
			dput(self);
			self = ERR_PTR(-ENOMEM);
		}
	} else {
		self = ERR_PTR(-ENOMEM);
	}
	mutex_unlock(&root_inode->i_mutex);
	if (IS_ERR(self)) {
		pr_err("proc_fill_super: can't allocate /proc/self\n");
		return PTR_ERR(self);
	}
	ns->proc_self = self;
	return 0;
}
开发者ID:dkati，项目名称:Hulk-Kernel-V2，代码行数:33，代码来源:self.c


示例5: mknod_ptmx

static int mknod_ptmx(struct super_block *sb)
{
	int mode;
	int rc = -ENOMEM;
	struct dentry *dentry;
	struct inode *inode;
	struct dentry *root = sb->s_root;
	struct pts_fs_info *fsi = DEVPTS_SB(sb);
	struct pts_mount_opts *opts = &fsi->mount_opts;
	kuid_t root_uid;
	kgid_t root_gid;

	root_uid = make_kuid(current_user_ns(), 0);
	root_gid = make_kgid(current_user_ns(), 0);
	if (!uid_valid(root_uid) || !gid_valid(root_gid))
		return -EINVAL;

	mutex_lock(&root->d_inode->i_mutex);

	/* If we have already created ptmx node, return */
	if (fsi->ptmx_dentry) {
		rc = 0;
		goto out;
	}

	dentry = d_alloc_name(root, "ptmx");
	if (!dentry) {
		printk(KERN_NOTICE "Unable to alloc dentry for ptmx node\n");
		goto out;
	}

	/*
	 * Create a new 'ptmx' node in this mount of devpts.
	 */
	inode = new_inode(sb);
	if (!inode) {
		printk(KERN_ERR "Unable to alloc inode for ptmx node\n");
		dput(dentry);
		goto out;
	}

	inode->i_ino = 2;
	inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;

	mode = S_IFCHR|opts->ptmxmode;
	init_special_inode(inode, mode, MKDEV(TTYAUX_MAJOR, 2));
	inode->i_uid = root_uid;
	inode->i_gid = root_gid;

	d_add(dentry, inode);

	fsi->ptmx_dentry = dentry;
	rc = 0;
out:
	mutex_unlock(&root->d_inode->i_mutex);
	return rc;
}
开发者ID:AD5GB，项目名称:kernel_n5_3.10-experimental，代码行数:57，代码来源:inode.c


示例6: mknod_ptmx

static int mknod_ptmx(struct super_block *sb)
{
	int mode;
	int rc = -ENOMEM;
	struct dentry *dentry;
	struct inode *inode;
	struct dentry *root = sb->s_root;
	struct pts_fs_info *fsi = DEVPTS_SB(sb);
	struct pts_mount_opts *opts = &fsi->mount_opts;
	kuid_t ptmx_uid = current_fsuid();
	kgid_t ptmx_gid = current_fsgid();

	inode_lock(d_inode(root));

	/* If we have already created ptmx node, return */
	if (fsi->ptmx_dentry) {
		rc = 0;
		goto out;
	}

	dentry = d_alloc_name(root, "ptmx");
	if (!dentry) {
		pr_err("Unable to alloc dentry for ptmx node\n");
		goto out;
	}

	/*
	 * Create a new 'ptmx' node in this mount of devpts.
	 */
	inode = new_inode(sb);
	if (!inode) {
		pr_err("Unable to alloc inode for ptmx node\n");
		dput(dentry);
		goto out;
	}

	inode->i_ino = 2;
	inode->i_mtime = inode->i_atime = inode->i_ctime = current_time(inode);

	mode = S_IFCHR|opts->ptmxmode;
	init_special_inode(inode, mode, MKDEV(TTYAUX_MAJOR, 2));
	inode->i_uid = ptmx_uid;
	inode->i_gid = ptmx_gid;

	d_add(dentry, inode);

	fsi->ptmx_dentry = dentry;
	rc = 0;
out:
	inode_unlock(d_inode(root));
	return rc;
}
开发者ID:guribe94，项目名称:linux，代码行数:52，代码来源:inode.c


示例7: oprofilefs_mkdir

struct dentry * oprofilefs_mkdir(struct super_block * sb,
	struct dentry * root, char const * name)
{
	struct dentry * dentry;
	struct inode * inode;

	dentry = d_alloc_name(root, name);
	if (!dentry)
		return NULL;
	inode = oprofilefs_get_inode(sb, S_IFDIR | 0755);
	if (!inode) {
		dput(dentry);
		return NULL;
	}
	inode->i_op = &simple_dir_inode_operations;
	inode->i_fop = &simple_dir_operations;
	d_add(dentry, inode);
	return dentry;
}
开发者ID:BackupTheBerlios，项目名称:arp2-svn，代码行数:19，代码来源:oprofilefs.c


示例8: __oprofilefs_create_file

static struct dentry * __oprofilefs_create_file(struct super_block * sb,
	struct dentry * root, char const * name, const struct file_operations * fops,
	int perm)
{
	struct dentry * dentry;
	struct inode * inode;

	dentry = d_alloc_name(root, name);
	if (!dentry)
		return NULL;
	inode = oprofilefs_get_inode(sb, S_IFREG | perm);
	if (!inode) {
		dput(dentry);
		return NULL;
	}
	inode->i_fop = fops;
	d_add(dentry, inode);
	return dentry;
}
开发者ID:BackupTheBerlios，项目名称:arp2-svn，代码行数:19，代码来源:oprofilefs.c


示例9: __oprofilefs_create_file

static int __oprofilefs_create_file(struct super_block *sb,
	struct dentry *root, char const *name, const struct file_operations *fops,
	int perm, void *priv)
{
	struct dentry *dentry;
	struct inode *inode;

	dentry = d_alloc_name(root, name);
	if (!dentry)
		return -ENOMEM;
	inode = oprofilefs_get_inode(sb, S_IFREG | perm);
	if (!inode) {
		dput(dentry);
		return -ENOMEM;
	}
	inode->i_fop = fops;
	d_add(dentry, inode);
	dentry->d_inode->i_private = priv;
	return 0;
}
开发者ID:0xroot，项目名称:Blackphone-BP1-Kernel，代码行数:20，代码来源:oprofilefs.c


示例10: pts_sb_from_inode

/**
 * devpts_pty_new -- create a new inode in /dev/pts/
 * @ptmx_inode: inode of the master
 * @device: major+minor of the node to be created
 * @index: used as a name of the node
 * @priv: what's given back by devpts_get_priv
 *
 * The created inode is returned. Remove it from /dev/pts/ by devpts_pty_kill.
 */
struct inode *devpts_pty_new(struct inode *ptmx_inode, dev_t device, int index,
		void *priv)
{
	struct dentry *dentry;
	struct super_block *sb = pts_sb_from_inode(ptmx_inode);
	struct inode *inode;
	struct dentry *root = sb->s_root;
	struct pts_fs_info *fsi = DEVPTS_SB(sb);
	struct pts_mount_opts *opts = &fsi->mount_opts;
	char s[12];

	inode = new_inode(sb);
	if (!inode)
		return ERR_PTR(-ENOMEM);

	inode->i_ino = index + 3;
	inode->i_uid = opts->setuid ? opts->uid : current_fsuid();
	inode->i_gid = opts->setgid ? opts->gid : current_fsgid();
	inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
	init_special_inode(inode, S_IFCHR|opts->mode, device);
	inode->i_private = priv;

	sprintf(s, "%d", index);

	mutex_lock(&root->d_inode->i_mutex);

	dentry = d_alloc_name(root, s);
	if (dentry) {
		d_add(dentry, inode);
		fsnotify_create(root->d_inode, dentry);
	} else {
		iput(inode);
		inode = ERR_PTR(-ENOMEM);
	}

	mutex_unlock(&root->d_inode->i_mutex);

	return inode;
}
开发者ID:AD5GB，项目名称:kernel_n5_3.10-experimental，代码行数:48，代码来源:inode.c


示例11: inode_lock

struct dentry *oprofilefs_mkdir(struct dentry *parent, char const *name)
{
	struct dentry *dentry;
	struct inode *inode;

	inode_lock(d_inode(parent));
	dentry = d_alloc_name(parent, name);
	if (!dentry) {
		inode_unlock(d_inode(parent));
		return NULL;
	}
	inode = oprofilefs_get_inode(parent->d_sb, S_IFDIR | 0755);
	if (!inode) {
		dput(dentry);
		inode_unlock(d_inode(parent));
		return NULL;
	}
	inode->i_op = &simple_dir_inode_operations;
	inode->i_fop = &simple_dir_operations;
	d_add(dentry, inode);
	inode_unlock(d_inode(parent));
	return dentry;
}
开发者ID:acton393，项目名称:linux，代码行数:23，代码来源:oprofilefs.c


示例12: new_inode

/**
 * devpts_pty_new -- create a new inode in /dev/pts/
 * @ptmx_inode: inode of the master
 * @device: major+minor of the node to be created
 * @index: used as a name of the node
 * @priv: what's given back by devpts_get_priv
 *
 * The created inode is returned. Remove it from /dev/pts/ by devpts_pty_kill.
 */
struct dentry *devpts_pty_new(struct pts_fs_info *fsi, int index, void *priv)
{
	struct dentry *dentry;
	struct super_block *sb = fsi->sb;
	struct inode *inode;
	struct dentry *root;
	struct pts_mount_opts *opts;
	char s[12];

	root = sb->s_root;
	opts = &fsi->mount_opts;

	inode = new_inode(sb);
	if (!inode)
		return ERR_PTR(-ENOMEM);

	inode->i_ino = index + 3;
	inode->i_uid = opts->setuid ? opts->uid : current_fsuid();
	inode->i_gid = opts->setgid ? opts->gid : current_fsgid();
	inode->i_mtime = inode->i_atime = inode->i_ctime = current_time(inode);
	init_special_inode(inode, S_IFCHR|opts->mode, MKDEV(UNIX98_PTY_SLAVE_MAJOR, index));

	sprintf(s, "%d", index);

	dentry = d_alloc_name(root, s);
	if (dentry) {
		dentry->d_fsdata = priv;
		d_add(dentry, inode);
		fsnotify_create(d_inode(root), dentry);
	} else {
		iput(inode);
		dentry = ERR_PTR(-ENOMEM);
	}

	return dentry;
}
开发者ID:guribe94，项目名称:linux，代码行数:45，代码来源:inode.c


示例13: sel_make_bools

static int sel_make_bools(void)
{
	int i, ret;
	ssize_t len;
	struct dentry *dentry = NULL;
	struct dentry *dir = bool_dir;
	struct inode *inode = NULL;
	struct inode_security_struct *isec;
	char **names = NULL, *page;
	int num;
	int *values = NULL;
	u32 sid;

	/* remove any existing files */
	for (i = 0; i < bool_num; i++)
		kfree(bool_pending_names[i]);
	kfree(bool_pending_names);
	kfree(bool_pending_values);
	bool_num = 0;
	bool_pending_names = NULL;
	bool_pending_values = NULL;

	sel_remove_entries(dir);

	ret = -ENOMEM;
	page = (char *)get_zeroed_page(GFP_KERNEL);
	if (!page)
		goto out;

	ret = security_get_bools(&num, &names, &values);
	if (ret)
		goto out;

	for (i = 0; i < num; i++) {
		ret = -ENOMEM;
		dentry = d_alloc_name(dir, names[i]);
		if (!dentry)
			goto out;

		ret = -ENOMEM;
		inode = sel_make_inode(dir->d_sb, S_IFREG | S_IRUGO | S_IWUSR);
		if (!inode)
			goto out;

		ret = -EINVAL;
		len = snprintf(page, PAGE_SIZE, "/%s/%s", BOOL_DIR_NAME, names[i]);
		if (len < 0)
			goto out;

		ret = -ENAMETOOLONG;
		if (len >= PAGE_SIZE)
			goto out;

		isec = (struct inode_security_struct *)inode->i_security;
		ret = security_genfs_sid("selinuxfs", page, SECCLASS_FILE, &sid);
		if (ret)
			goto out;

		isec->sid = sid;
		isec->initialized = 1;
		inode->i_fop = &sel_bool_ops;
		inode->i_ino = i|SEL_BOOL_INO_OFFSET;
		d_add(dentry, inode);
	}
	bool_num = num;
	bool_pending_names = names;
	bool_pending_values = values;

	free_page((unsigned long)page);
	return 0;
out:
	free_page((unsigned long)page);

	if (names) {
		for (i = 0; i < num; i++)
			kfree(names[i]);
		kfree(names);
	}
	kfree(values);
	sel_remove_entries(dir);

	return ret;
}
开发者ID:NicolFever，项目名称:Googy-Max3-Kernel-for-CM，代码行数:83，代码来源:selinuxfs.c


示例14: lzfs_zfsctl_create

void
lzfs_zfsctl_create(vfs_t *vfsp)
{
	vnode_t *vp_zfsctl_dir = NULL, *vp_snap_dir = NULL;
	struct dentry *zfsctl_dir_dentry = NULL, *snap_dir_dentry = NULL;
	struct inode *inode_ctldir = NULL, *inode_snapdir = NULL;
	timestruc_t now;

	inode_ctldir = iget_locked(vfsp->vfs_super, LZFS_ZFSCTL_INO_ROOT);
	ASSERT(inode_ctldir != NULL);
	vp_zfsctl_dir = LZFS_ITOV(inode_ctldir);
	gethrestime(&now);
	ASSERT(inode_ctldir->i_state & I_NEW);
	mutex_enter(&vp_zfsctl_dir->v_lock);
	vp_zfsctl_dir->v_count = 1;
	VN_SET_VFS_TYPE_DEV(vp_zfsctl_dir, vfsp, VDIR, 0);
	bcopy(&now, &(vp_zfsctl_dir->v_inode.i_ctime), 
			sizeof (timestruc_t));
	bcopy(&now, &(vp_zfsctl_dir->v_inode.i_atime),
	      sizeof (timestruc_t));
	bcopy(&now,&(vp_zfsctl_dir->v_inode.i_mtime),sizeof (timestruc_t));
#ifdef HAVE_CRED_STRUCT
	inode_ctldir->i_uid = current->cred->uid;
	inode_ctldir->i_gid = current->cred->gid;
#else
	inode_ctldir->i_uid = current->uid;
	inode_ctldir->i_gid = current->gid;
#endif
	inode_ctldir->i_version = 1;
	inode_ctldir->i_mode |= (S_IFDIR | S_IRWXU);
	inode_ctldir->i_op = &zfsctl_dir_inode_operations;
	inode_ctldir->i_fop = &zfsctl_dir_file_operations;
	ASSERT(vfsp);
	inode_ctldir->i_sb = vfsp->vfs_super;
	ASSERT(vfsp->vfs_super);
	ASSERT(vfsp->vfs_super->s_root);
	unlock_new_inode(inode_ctldir);
	zfsctl_dir_dentry = d_alloc_name(vfsp->vfs_super->s_root, 
					 ZFS_CTLDIR_NAME);
	if (zfsctl_dir_dentry) {
	  d_add(zfsctl_dir_dentry, LZFS_VTOI(vp_zfsctl_dir));
	  vfsp->zfsctl_dir_dentry = zfsctl_dir_dentry;
	} else {
		goto dentry_out;
	}
	set_zfsvfs_ctldir(vfsp->vfs_data, vp_zfsctl_dir);
	mutex_exit(&vp_zfsctl_dir->v_lock);
	inode_snapdir = iget_locked(vfsp->vfs_super, LZFS_ZFSCTL_INO_SNAPDIR);
	ASSERT(inode_snapdir != NULL);
	ASSERT(inode_snapdir->i_state & I_NEW);
	vp_snap_dir = LZFS_ITOV(inode_snapdir);
	gethrestime(&now);
	vfsp->vfs_snap_dir = vp_snap_dir;
	mutex_enter(&vp_snap_dir->v_lock);
	vp_snap_dir->v_count = 1;
	VN_SET_VFS_TYPE_DEV(vp_snap_dir, vfsp, VDIR, 0);
	bcopy(&now,&(vp_snap_dir->v_inode.i_ctime),sizeof (timestruc_t));
	bcopy(&now,&(vp_snap_dir->v_inode.i_atime),sizeof (timestruc_t));
	bcopy(&now,&(vp_snap_dir->v_inode.i_mtime),sizeof (timestruc_t));
#ifdef HAVE_CRED_STRUCT
	inode_snapdir->i_uid = current->cred->uid;
	inode_snapdir->i_gid = current->cred->gid;
#else
	inode_snapdir->i_uid = current->uid;
	inode_snapdir->i_gid = current->gid;
#endif
	inode_snapdir->i_version = 1;
	inode_snapdir->i_mode |= (S_IFDIR | S_IRWXU);
	inode_snapdir->i_op = &snap_dir_inode_operations;
	inode_snapdir->i_fop = &snap_dir_file_operations;
	inode_snapdir->i_sb = vfsp->vfs_super;
	unlock_new_inode(inode_snapdir);
	ASSERT(zfsctl_dir_dentry);
	snap_dir_dentry = d_alloc_name(zfsctl_dir_dentry, ZFS_SNAPDIR_NAME);
	if (snap_dir_dentry) {
		d_add(snap_dir_dentry, LZFS_VTOI(vp_snap_dir));
		vfsp->snap_dir_dentry = snap_dir_dentry;
		mutex_exit(&vp_snap_dir->v_lock);
	} else {
		goto dentry_out;
	}
	return;
dentry_out:
	// free vnode
	vn_free(vp_zfsctl_dir);
	ASSERT(0 && "TODO");
}
开发者ID:glycerine，项目名称:lzfs，代码行数:87，代码来源:lzfs_snap.c



注：本文中的d_alloc_name函数示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。

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