/*
 * symlink.c
 *
 * Copyright (c) 1999 Al Smith
 *
 * Portions derived from work (c) 1995,1996 Christian Vogelgsang.
 */

#include <linux/string.h>
#include <linux/pagemap.h>
#include <linux/buffer_head.h>
#include "efs.h"

static int efs_symlink_readpage(struct file *file, struct page *page)
{
	char *link = page_address(page);
	struct buffer_head * bh;
	struct inode * inode = page->mapping->host;
	efs_block_t size = inode->i_size;
	int err;
  
	err = -ENAMETOOLONG;
	if (size > 2 * EFS_BLOCKSIZE)
		goto fail;
  
	/* read first 512 bytes of link target */
	err = -EIO;
	bh = sb_bread(inode->i_sb, efs_bmap(inode, 0));
	if (!bh)
		goto fail;
	memcpy(link, bh->b_data, (size > EFS_BLOCKSIZE) ? EFS_BLOCKSIZE : size);
	brelse(bh);
	if (size > EFS_BLOCKSIZE) {
		bh = sb_bread(inode->i_sb, efs_bmap(inode, 1));
		if (!bh)
			goto fail;
		memcpy(link + EFS_BLOCKSIZE, bh->b_data, size - EFS_BLOCKSIZE);
		brelse(bh);
	}
	link[size] = '\0';
	SetPageUptodate(page);
	unlock_page(page);
	return 0;
fail:
	SetPageError(page);
	unlock_page(page);
	return err;
}

const struct address_space_operations efs_symlink_aops = {
	.readpage	= efs_symlink_readpage
};
cted'>nds-private-remove</option>
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<tr><td class='sub'>net-next plumbings</td><td class='sub right'>Tobias Klauser</td></tr></table>
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/log/?h=nds-private-remove&amp;id=d02d8986a7688d3f0ff6ef61aa6beb41427692eb'>root</a>/<a href='/cgit.cgi/linux/net-next.git/log/include?h=nds-private-remove&amp;id=d02d8986a7688d3f0ff6ef61aa6beb41427692eb'>include</a>/<a href='/cgit.cgi/linux/net-next.git/log/include/net?h=nds-private-remove&amp;id=d02d8986a7688d3f0ff6ef61aa6beb41427692eb'>net</a>/<a href='/cgit.cgi/linux/net-next.git/log/include/net/nfc?h=nds-private-remove&amp;id=d02d8986a7688d3f0ff6ef61aa6beb41427692eb'>nfc</a>/<a href='/cgit.cgi/linux/net-next.git/log/include/net/nfc/nci.h?h=nds-private-remove&amp;id=d02d8986a7688d3f0ff6ef61aa6beb41427692eb'>nci.h</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/cgit.cgi/linux/net-next.git/log/include/net/nfc/nci.h?h=nds-private-remove&amp;id=d02d8986a7688d3f0ff6ef61aa6beb41427692eb&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th><th class='left'>Files</th><th class='left'>Lines</th></tr>