| d_obtain_alias(9) - phpMan
D_OBTAIN_ALIAS(9) The Linux VFS D_OBTAIN_ALIAS(9)
NAME
d_obtain_alias - find or allocate a DISCONNECTED dentry for a given inode
SYNOPSIS
struct dentry * d_obtain_alias(struct inode * inode);
ARGUMENTS
inode
inode to allocate the dentry for
DESCRIPTION
Obtain a dentry for an inode resulting from NFS filehandle conversion or similar open by
handle operations. The returned dentry may be anonymous, or may have a full name (if the
inode was already in the cache).
When called on a directory inode, we must ensure that the inode only ever has one dentry.
If a dentry is found, that is returned instead of allocating a new one.
On successful return, the reference to the inode has been transferred to the dentry. In
case of an error the reference on the inode is released. To make it easier to use in
export operations a NULL or IS_ERR inode may be passed in and the error will be propagated
to the return value, with a NULLinode replaced by ERR_PTR(-ESTALE).
COPYRIGHT
Kernel Hackers Manual 4.8. January 2017 D_OBTAIN_ALIAS(9)
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