VFS_UNLINK(9) The Linux VFS VFS_UNLINK(9)NAME
vfs_unlink - unlink a filesystem object
int vfs_unlink(struct inode * dir, struct dentry * dentry, struct inode ** delegated_inode);
returns victim inode, if the inode is delegated.
The caller must hold dir->i_mutex.
If vfs_unlink discovers a delegation, it will return -EWOULDBLOCK and return a reference to the inode in delegated_inode. The caller should
then break the delegation on that inode and retry. Because breaking a delegation may take a long time, the caller should drop dir->i_mutex
before doing so.
Alternatively, a caller may pass NULL for delegated_inode. This may be appropriate for callers that expect the underlying filesystem not to
be NFS exported.
COPYRIGHT Kernel Hackers Manual 3.10 June 2014 VFS_UNLINK(9)
Check Out this Related Man Page
SECURITYFS_CREATE_FI(9) Security Framework SECURITYFS_CREATE_FI(9)NAME
securityfs_create_file - create a file in the securityfs filesystem
struct dentry * securityfs_create_file(const char * name, mode_t mode, struct dentry * parent, void * data,
const struct file_operations * fops);
a pointer to a string containing the name of the file to create.
the permission that the file should have
a pointer to the parent dentry for this file. This should be a directory dentry if set. If this parameter is NULL, then the file will
be created in the root of the securityfs filesystem.
a pointer to something that the caller will want to get to later on. The inode.i_private pointer will point to this value on the open
a pointer to a struct file_operations that should be used for this file.
This is the basic "create a file" function for securityfs. It allows for a wide range of flexibility in creating a file, or a directory (if
you want to create a directory, the securityfs_create_dir function is recommended to be used instead).
This function returns a pointer to a dentry if it succeeds. This pointer must be passed to the securityfs_remove function when the file is
to be removed (no automatic cleanup happens if your module is unloaded, you are responsible here). If an error occurs, the function will
return the erorr value (via ERR_PTR).
If securityfs is not enabled in the kernel, the value -ENODEV is returned.
COPYRIGHT Kernel Hackers Manual 2.6. July 2010 SECURITYFS_CREATE_FI(9)
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