C++ (Cpp) ocfs2_fast_symlink_getlink Examples

Example #1

File: symlink.c Project: romanbb/android_kernel_lge_d851

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;
	}

	/*
                                               
                                             
  */
	ret = vfs_readlink(dentry, buffer, buflen, link);

	brelse(bh);
out:
	if (ret < 0)
		mlog_errno(ret);
	return ret;
}

Example #2

File: symlink.c Project: mikuhatsune001/linux2.6.32

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;

	mlog_entry_void();

	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:
	mlog_exit(ret);
	return ret;
}

Example #3

File: symlink.c Project: johnny/CobraDroidBeta

static void *ocfs2_follow_link(struct dentry *dentry,
			       struct nameidata *nd)
{
	int status;
	char *link;
	struct inode *inode = dentry->d_inode;
	struct page *page = NULL;
	struct buffer_head *bh = NULL;
	
	if (ocfs2_inode_is_fast_symlink(inode))
		link = ocfs2_fast_symlink_getlink(inode, &bh);
	else
		link = ocfs2_page_getlink(dentry, &page);
	if (IS_ERR(link)) {
		status = PTR_ERR(link);
		mlog_errno(status);
		goto bail;
	}

	status = vfs_follow_link(nd, link);

bail:
	if (page) {
		kunmap(page);
		page_cache_release(page);
	}
	brelse(bh);

	return ERR_PTR(status);
}

Example #4

File: symlink.c Project: mikuhatsune001/linux2.6.32

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;

	mlog_entry_void();

	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);
	nd_set_link(nd, link);

bail:
	brelse(bh);

	mlog_exit(status);
	return status ? ERR_PTR(status) : link;
}