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-rw-r--r--fs/aufs/dcsub.h136
1 files changed, 0 insertions, 136 deletions
diff --git a/fs/aufs/dcsub.h b/fs/aufs/dcsub.h
deleted file mode 100644
index d372325b2..000000000
--- a/fs/aufs/dcsub.h
+++ /dev/null
@@ -1,136 +0,0 @@
-/*
- * Copyright (C) 2005-2015 Junjiro R. Okajima
- *
- * This program, aufs is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-/*
- * sub-routines for dentry cache
- */
-
-#ifndef __AUFS_DCSUB_H__
-#define __AUFS_DCSUB_H__
-
-#ifdef __KERNEL__
-
-#include <linux/dcache.h>
-#include <linux/fs.h>
-
-struct au_dpage {
- int ndentry;
- struct dentry **dentries;
-};
-
-struct au_dcsub_pages {
- int ndpage;
- struct au_dpage *dpages;
-};
-
-/* ---------------------------------------------------------------------- */
-
-/* dcsub.c */
-int au_dpages_init(struct au_dcsub_pages *dpages, gfp_t gfp);
-void au_dpages_free(struct au_dcsub_pages *dpages);
-typedef int (*au_dpages_test)(struct dentry *dentry, void *arg);
-int au_dcsub_pages(struct au_dcsub_pages *dpages, struct dentry *root,
- au_dpages_test test, void *arg);
-int au_dcsub_pages_rev(struct au_dcsub_pages *dpages, struct dentry *dentry,
- int do_include, au_dpages_test test, void *arg);
-int au_dcsub_pages_rev_aufs(struct au_dcsub_pages *dpages,
- struct dentry *dentry, int do_include);
-int au_test_subdir(struct dentry *d1, struct dentry *d2);
-
-/* ---------------------------------------------------------------------- */
-
-/*
- * todo: in linux-3.13, several similar (but faster) helpers are added to
- * include/linux/dcache.h. Try them (in the future).
- */
-
-static inline int au_d_hashed_positive(struct dentry *d)
-{
- int err;
- struct inode *inode = d_inode(d);
-
- err = 0;
- if (unlikely(d_unhashed(d)
- || d_is_negative(d)
- || !inode->i_nlink))
- err = -ENOENT;
- return err;
-}
-
-static inline int au_d_linkable(struct dentry *d)
-{
- int err;
- struct inode *inode = d_inode(d);
-
- err = au_d_hashed_positive(d);
- if (err
- && d_is_positive(d)
- && (inode->i_state & I_LINKABLE))
- err = 0;
- return err;
-}
-
-static inline int au_d_alive(struct dentry *d)
-{
- int err;
- struct inode *inode;
-
- err = 0;
- if (!IS_ROOT(d))
- err = au_d_hashed_positive(d);
- else {
- inode = d_inode(d);
- if (unlikely(d_unlinked(d)
- || d_is_negative(d)
- || !inode->i_nlink))
- err = -ENOENT;
- }
- return err;
-}
-
-static inline int au_alive_dir(struct dentry *d)
-{
- int err;
-
- err = au_d_alive(d);
- if (unlikely(err || IS_DEADDIR(d_inode(d))))
- err = -ENOENT;
- return err;
-}
-
-static inline int au_qstreq(struct qstr *a, struct qstr *b)
-{
- return a->len == b->len
- && !memcmp(a->name, b->name, a->len);
-}
-
-/*
- * by the commit
- * 360f547 2015-01-25 dcache: let the dentry count go down to zero without
- * taking d_lock
- * the type of d_lockref.count became int, but the inlined function d_count()
- * still returns unsigned int.
- * I don't know why. Maybe it is for every d_count() users?
- * Anyway au_dcount() lives on.
- */
-static inline int au_dcount(struct dentry *d)
-{
- return (int)d_count(d);
-}
-
-#endif /* __KERNEL__ */
-#endif /* __AUFS_DCSUB_H__ */