diff options
Diffstat (limited to 'ANDROID_3.4.5/fs/jffs2/symlink.c')
-rw-r--r-- | ANDROID_3.4.5/fs/jffs2/symlink.c | 67 |
1 files changed, 0 insertions, 67 deletions
diff --git a/ANDROID_3.4.5/fs/jffs2/symlink.c b/ANDROID_3.4.5/fs/jffs2/symlink.c deleted file mode 100644 index 6e563332..00000000 --- a/ANDROID_3.4.5/fs/jffs2/symlink.c +++ /dev/null @@ -1,67 +0,0 @@ -/* - * JFFS2 -- Journalling Flash File System, Version 2. - * - * Copyright © 2001-2007 Red Hat, Inc. - * - * Created by David Woodhouse <dwmw2@infradead.org> - * - * For licensing information, see the file 'LICENCE' in this directory. - * - */ - -#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt - -#include <linux/kernel.h> -#include <linux/fs.h> -#include <linux/namei.h> -#include "nodelist.h" - -static void *jffs2_follow_link(struct dentry *dentry, struct nameidata *nd); - -const struct inode_operations jffs2_symlink_inode_operations = -{ - .readlink = generic_readlink, - .follow_link = jffs2_follow_link, - .get_acl = jffs2_get_acl, - .setattr = jffs2_setattr, - .setxattr = jffs2_setxattr, - .getxattr = jffs2_getxattr, - .listxattr = jffs2_listxattr, - .removexattr = jffs2_removexattr -}; - -static void *jffs2_follow_link(struct dentry *dentry, struct nameidata *nd) -{ - struct jffs2_inode_info *f = JFFS2_INODE_INFO(dentry->d_inode); - char *p = (char *)f->target; - - /* - * We don't acquire the f->sem mutex here since the only data we - * use is f->target. - * - * 1. If we are here the inode has already built and f->target has - * to point to the target path. - * 2. Nobody uses f->target (if the inode is symlink's inode). The - * exception is inode freeing function which frees f->target. But - * it can't be called while we are here and before VFS has - * stopped using our f->target string which we provide by means of - * nd_set_link() call. - */ - - if (!p) { - pr_err("%s(): can't find symlink target\n", __func__); - p = ERR_PTR(-EIO); - } - jffs2_dbg(1, "%s(): target path is '%s'\n", - __func__, (char *)f->target); - - nd_set_link(nd, p); - - /* - * We will unlock the f->sem mutex but VFS will use the f->target string. This is safe - * since the only way that may cause f->target to be changed is iput() operation. - * But VFS will not use f->target after iput() has been called. - */ - return NULL; -} - |