diff options
Diffstat (limited to 'ANDROID_3.4.5/fs/ocfs2/symlink.c')
| -rw-r--r-- | ANDROID_3.4.5/fs/ocfs2/symlink.c | 173 |
1 files changed, 0 insertions, 173 deletions
diff --git a/ANDROID_3.4.5/fs/ocfs2/symlink.c b/ANDROID_3.4.5/fs/ocfs2/symlink.c deleted file mode 100644 index 5d22872e..00000000 --- a/ANDROID_3.4.5/fs/ocfs2/symlink.c +++ /dev/null @@ -1,173 +0,0 @@ -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * - * linux/cluster/ssi/cfs/symlink.c - * - * 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, GOOD TITLE - * or NON INFRINGEMENT. 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, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - * - * Questions/Comments/Bugfixes to ssic-linux-devel@lists.sourceforge.net - * - * Copyright (C) 1992 Rick Sladkey - * - * Optimization changes Copyright (C) 1994 Florian La Roche - * - * Jun 7 1999, cache symlink lookups in the page cache. -DaveM - * - * Portions Copyright (C) 2001 Compaq Computer Corporation - * - * ocfs2 symlink handling code. - * - * Copyright (C) 2004, 2005 Oracle. - * - */ - -#include <linux/fs.h> -#include <linux/types.h> -#include <linux/slab.h> -#include <linux/pagemap.h> -#include <linux/namei.h> - -#include <cluster/masklog.h> - -#include "ocfs2.h" - -#include "alloc.h" -#include "file.h" -#include "inode.h" -#include "journal.h" -#include "symlink.h" -#include "xattr.h" - -#include "buffer_head_io.h" - - -static char *ocfs2_fast_symlink_getlink(struct inode *inode, - struct buffer_head **bh) -{ - int status; - char *link = NULL; - struct ocfs2_dinode *fe; - - status = ocfs2_read_inode_block(inode, bh); - if (status < 0) { - mlog_errno(status); - link = ERR_PTR(status); - goto bail; - } - - fe = (struct ocfs2_dinode *) (*bh)->b_data; - link = (char *) fe->id2.i_symlink; -bail: - - return link; -} - -static int ocfs2_readlink(struct dentry *dentry, - char __user *buffer, - int buflen) -{ - int ret; - char *link; - struct buffer_head *bh = NULL; - struct inode *inode = dentry->d_inode; - - link = ocfs2_fast_symlink_getlink(inode, &bh); - if (IS_ERR(link)) { - ret = PTR_ERR(link); - goto out; - } - - /* - * Without vfsmount we can't update atime now, - * but we will update atime here ultimately. - */ - ret = vfs_readlink(dentry, buffer, buflen, link); - - brelse(bh); -out: - if (ret < 0) - mlog_errno(ret); - return ret; -} - -static void *ocfs2_fast_follow_link(struct dentry *dentry, - struct nameidata *nd) -{ - int status = 0; - int len; - char *target, *link = ERR_PTR(-ENOMEM); - struct inode *inode = dentry->d_inode; - struct buffer_head *bh = NULL; - - BUG_ON(!ocfs2_inode_is_fast_symlink(inode)); - target = ocfs2_fast_symlink_getlink(inode, &bh); - if (IS_ERR(target)) { - status = PTR_ERR(target); - mlog_errno(status); - goto bail; - } - - /* Fast symlinks can't be large */ - len = strnlen(target, ocfs2_fast_symlink_chars(inode->i_sb)); - link = kzalloc(len + 1, GFP_NOFS); - if (!link) { - status = -ENOMEM; - mlog_errno(status); - goto bail; - } - - memcpy(link, target, len); - -bail: - nd_set_link(nd, status ? ERR_PTR(status) : link); - brelse(bh); - - if (status) - mlog_errno(status); - return NULL; -} - -static void ocfs2_fast_put_link(struct dentry *dentry, struct nameidata *nd, void *cookie) -{ - char *link = nd_get_link(nd); - if (!IS_ERR(link)) - kfree(link); -} - -const struct inode_operations ocfs2_symlink_inode_operations = { - .readlink = page_readlink, - .follow_link = page_follow_link_light, - .put_link = page_put_link, - .getattr = ocfs2_getattr, - .setattr = ocfs2_setattr, - .setxattr = generic_setxattr, - .getxattr = generic_getxattr, - .listxattr = ocfs2_listxattr, - .removexattr = generic_removexattr, - .fiemap = ocfs2_fiemap, -}; -const struct inode_operations ocfs2_fast_symlink_inode_operations = { - .readlink = ocfs2_readlink, - .follow_link = ocfs2_fast_follow_link, - .put_link = ocfs2_fast_put_link, - .getattr = ocfs2_getattr, - .setattr = ocfs2_setattr, - .setxattr = generic_setxattr, - .getxattr = generic_getxattr, - .listxattr = ocfs2_listxattr, - .removexattr = generic_removexattr, - .fiemap = ocfs2_fiemap, -}; |