VFS_RENAME(9) The Linux VFS VFS_RENAME(9)NAME
vfs_rename - rename a filesystem object
SYNOPSIS
int vfs_rename(struct inode * old_dir, struct dentry * old_dentry, struct inode * new_dir, struct dentry * new_dentry,
struct inode ** delegated_inode);
ARGUMENTS
old_dir
parent of source
old_dentry
source
new_dir
parent of destination
new_dentry
destination
delegated_inode
returns an inode needing a delegation break
DESCRIPTION
The caller must hold multiple mutexes--see lock_rename).
If vfs_rename discovers a delegation in need of breaking at either the source or destination, it will return -EWOULDBLOCK and return a
reference to the inode in delegated_inode. The caller should then break the delegation and retry. Because breaking a delegation may take a
long time, the caller should drop all locks 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_RENAME(9)
Check Out this Related Man Page
DEBUGFS_CREATE_REGSE(9) The debugfs filesystem DEBUGFS_CREATE_REGSE(9)NAME
debugfs_create_regset32 - create a debugfs file that returns register values
SYNOPSIS
struct dentry * debugfs_create_regset32(const char * name, umode_t mode, struct dentry * parent, struct debugfs_regset32 * regset);
ARGUMENTS
name
a pointer to a string containing the name of the file to create.
mode
the permission that the file should have
parent
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 debugfs filesystem.
regset
a pointer to a struct debugfs_regset32, which contains a pointer to an array of register definitions, the array size and the base
address where the register bank is to be found.
DESCRIPTION
This function creates a file in debugfs with the given name that reports the names and values of a set of 32-bit registers. If the mode
variable is so set it can be read from. Writing is not supported.
This function will return a pointer to a dentry if it succeeds. This pointer must be passed to the debugfs_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, NULL will be
returned.
If debugfs is not enabled in the kernel, the value -ENODEV will be returned. It is not wise to check for this value, but rather, check for
NULL or !NULL instead as to eliminate the need for #ifdef in the calling code.
COPYRIGHT Kernel Hackers Manual 3.10 June 2014 DEBUGFS_CREATE_REGSE(9)
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