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Commit b9aff027 authored by Nick Piggin's avatar Nick Piggin Committed by Al Viro
Browse files

fs: anon_inodes implement dname 



Add a d_dname method for anon_inodes filesystem, the same way pipefs and
sockfs pseudo filesystems.  This allows us to remove the DCACHE_UNHASHED
hack from anon_inodes.c (see next patch).

[AV: inumber is useless here, dropped from anon_inodefs_dname()]

Signed-off-by: default avatarNick Piggin <npiggin@suse.de>
Cc: Miklos Szeredi <mszeredi@suse.cz>
Cc: Davide Libenzi <davidel@xmailserver.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
parent 06777d30

fs/anon_inodes.c

+10 −0
Original line number Diff line number Diff line
@@ -45,6 +45,15 @@ static int anon_inodefs_delete_dentry(struct dentry *dentry) 
	return 1;

}



/*

 * anon_inodefs_dname() is called from d_path().

 */

static char *anon_inodefs_dname(struct dentry *dentry, char *buffer, int buflen)

{

	return dynamic_dname(dentry, buffer, buflen, "anon_inode:%s",

				dentry->d_name.name);

}



static struct file_system_type anon_inode_fs_type = {

	.name		= "anon_inodefs",

	.get_sb		= anon_inodefs_get_sb,
@@ -52,6 +61,7 @@ static struct file_system_type anon_inode_fs_type = { 
};

static const struct dentry_operations anon_inodefs_dentry_operations = {

	.d_delete	= anon_inodefs_delete_dentry,

	.d_dname	= anon_inodefs_dname,

};



/*