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authorDavid S. Miller <davem@davemloft.net>2012-02-10 23:32:28 -0500
committerDavid S. Miller <davem@davemloft.net>2012-02-10 23:32:28 -0500
commitd5ef8a4d87ab21d575ac86366599c9152a28028d (patch)
tree8b1be85ad1af7ee6a0e3e36c77ae738c966c1f21 /drivers/staging/pohmelfs/path_entry.c
parentd9dd966d7fc088a6bed991c2b1e2fba4485e0a31 (diff)
parent8df54d622a120058ee8bec38743c9b8f091c8e58 (diff)
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts: drivers/infiniband/hw/nes/nes_cm.c Simple whitespace conflict. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/staging/pohmelfs/path_entry.c')
-rw-r--r--drivers/staging/pohmelfs/path_entry.c120
1 files changed, 0 insertions, 120 deletions
diff --git a/drivers/staging/pohmelfs/path_entry.c b/drivers/staging/pohmelfs/path_entry.c
deleted file mode 100644
index 400a9fc386ad..000000000000
--- a/drivers/staging/pohmelfs/path_entry.c
+++ /dev/null
@@ -1,120 +0,0 @@
-/*
- * 2007+ Copyright (c) Evgeniy Polyakov <zbr@ioremap.net>
- * All rights reserved.
- *
- * This program 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.
- */
-
-#include <linux/module.h>
-#include <linux/fs.h>
-#include <linux/ktime.h>
-#include <linux/fs_struct.h>
-#include <linux/pagemap.h>
-#include <linux/writeback.h>
-#include <linux/mount.h>
-#include <linux/mm.h>
-
-#include "netfs.h"
-
-#define UNHASHED_OBSCURE_STRING_SIZE sizeof(" (deleted)")
-
-/*
- * Create path from root for given inode.
- * Path is formed as set of stuctures, containing name of the object
- * and its inode data (mode, permissions and so on).
- */
-int pohmelfs_construct_path_string(struct pohmelfs_inode *pi, void *data, int len)
-{
- struct path path;
- struct dentry *d;
- char *ptr;
- int err = 0, strlen, reduce = 0;
-
- d = d_find_alias(&pi->vfs_inode);
- if (!d) {
- printk("%s: no alias, list_empty: %d.\n", __func__, list_empty(&pi->vfs_inode.i_dentry));
- return -ENOENT;
- }
-
- spin_lock(&current->fs->lock);
- path.mnt = mntget(current->fs->root.mnt);
- spin_unlock(&current->fs->lock);
-
- path.dentry = d;
-
- if (!IS_ROOT(d) && d_unhashed(d))
- reduce = 1;
-
- ptr = d_path(&path, data, len);
- if (IS_ERR(ptr)) {
- err = PTR_ERR(ptr);
- goto out;
- }
-
- if (reduce && len >= UNHASHED_OBSCURE_STRING_SIZE) {
- char *end = data + len - UNHASHED_OBSCURE_STRING_SIZE;
- *end = '\0';
- }
-
- strlen = len - (ptr - (char *)data);
- memmove(data, ptr, strlen);
- ptr = data;
-
- err = strlen;
-
- dprintk("%s: dname: '%s', len: %u, maxlen: %u, name: '%s', strlen: %d.\n",
- __func__, d->d_name.name, d->d_name.len, len, ptr, strlen);
-
-out:
- dput(d);
- mntput(path.mnt);
-
- return err;
-}
-
-int pohmelfs_path_length(struct pohmelfs_inode *pi)
-{
- struct dentry *d, *root, *first;
- int len;
- unsigned seq;
-
- first = d_find_alias(&pi->vfs_inode);
- if (!first) {
- dprintk("%s: ino: %llu, mode: %o.\n", __func__, pi->ino, pi->vfs_inode.i_mode);
- return -ENOENT;
- }
-
- spin_lock(&current->fs->lock);
- root = dget(current->fs->root.dentry);
- spin_unlock(&current->fs->lock);
-
-rename_retry:
- len = 1; /* Root slash */
- d = first;
- seq = read_seqbegin(&rename_lock);
- rcu_read_lock();
-
- if (!IS_ROOT(d) && d_unhashed(d))
- len += UNHASHED_OBSCURE_STRING_SIZE; /* Obscure " (deleted)" string */
-
- while (d && d != root && !IS_ROOT(d)) {
- len += d->d_name.len + 1; /* Plus slash */
- d = d->d_parent;
- }
- rcu_read_unlock();
- if (read_seqretry(&rename_lock, seq))
- goto rename_retry;
-
- dput(root);
- dput(first);
-
- return len + 1; /* Including zero-byte */
-}