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d_splice_alias

Langue: en

Autres versions - même langue

Version: June 2009 (debian - 07/07/09)

Section: 9 (Appels noyau Linux)

NAME

d_splice_alias - splice a disconnected dentry into the tree if one exists

SYNOPSIS

struct dentry * d_splice_alias(struct inode * inode, struct dentry * dentry);

ARGUMENTS

inode

the inode which may have a disconnected dentry

dentry

a negative dentry which we want to point to the inode.

DESCRIPTION

If inode is a directory and has a 'disconnected' dentry (i.e. IS_ROOT and DCACHE_DISCONNECTED), then d_move that in place of the given dentry and return it, else simply d_add the inode to the dentry and return NULL.

This is needed in the lookup routine of any filesystem that is exportable (via knfsd) so that we can build dcache paths to directories effectively.

If a dentry was found and moved, then it is returned. Otherwise NULL is returned. This matches the expected return value of ->lookup.

Quand elles nous aiment ce n'est pas vraiment nous qu'elles aiment.
Mais c'est bien nous, un beau matin, qu'elles n'aiment plus.
-+- Paul Geraldy -+-