D_ADD_CI(9) The Linux VFS D_ADD_CI(9)NAME
d_add_ci - lookup or allocate new dentry with case-exact name
SYNOPSIS
struct dentry * d_add_ci(struct dentry * dentry, struct inode * inode,
struct qstr * name);
ARGUMENTS
dentry
the negative dentry that was passed to the parent's lookup func
inode
the inode case-insensitive lookup has found
name
the case-exact name to be associated with the returned dentry
DESCRIPTION
This is to avoid filling the dcache with case-insensitive names to the
same inode, only the actual correct case is stored in the dcache for
case-insensitive filesystems.
For a case-insensitive lookup match and if the the case-exact dentry
already exists in in the dcache, use it and return it.
If no entry exists with the exact case name, allocate new dentry with
the exact case, and return the spliced entry.
COPYRIGHTKernel Hackers Manual 3.11 November 2013 D_ADD_CI(9)