/*
 *   Copyright (C) International Business Machines Corp., 2000-2004
 *
 *   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.
 *
 *   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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */

#include <linux/fs.h>
#include <linux/slab.h>
#include "jfs_incore.h"
#include "jfs_filsys.h"
#include "jfs_unicode.h"
#include "jfs_debug.h"

/*
 * NAME:	jfs_strfromUCS()
 *
 * FUNCTION:	Convert little-endian unicode string to character string
 *
 */
int jfs_strfromUCS_le(char *to, const __le16 * from,
		      int len, struct nls_table *codepage)
{
	int i;
	int outlen = 0;
	static int warn_again = 5;	/* Only warn up to 5 times total */
	int warn = !!warn_again;	/* once per string */

	if (codepage) {
		for (i = 0; (i < len) && from[i]; i++) {
			int charlen;
			charlen =
			    codepage->uni2char(le16_to_cpu(from[i]),
					       &to[outlen],
					       NLS_MAX_CHARSET_SIZE);
			if (charlen > 0)
				outlen += charlen;
			else
				to[outlen++] = '?';
		}
	} else {
		for (i = 0; (i < len) && from[i]; i++) {
			if (unlikely(le16_to_cpu(from[i]) & 0xff00)) {
				to[i] = '?';
				if (unlikely(warn)) {
					warn--;
					warn_again--;
					printk(KERN_ERR
			"non-latin1 character 0x%x found in JFS file name\n",
					       le16_to_cpu(from[i]));
					printk(KERN_ERR
				"mount with iocharset=utf8 to access\n");
				}

			}
			else
				to[i] = (char) (le16_to_cpu(from[i]));
		}
		outlen = i;
	}
	to[outlen] = 0;
	return outlen;
}

/*
 * NAME:	jfs_strtoUCS()
 *
 * FUNCTION:	Convert character string to unicode string
 *
 */
static int jfs_strtoUCS(wchar_t * to, const unsigned char *from, int len,
		struct nls_table *codepage)
{
	int charlen;
	int i;

	if (codepage) {
		for (i = 0; len && *from; i++, from += charlen, len -= charlen)
		{
			charlen = codepage->char2uni(from, len, &to[i]);
			if (charlen < 1) {
				jfs_err("jfs_strtoUCS: char2uni returned %d.",
					charlen);
				jfs_err("charset = %s, char = 0x%x",
					codepage->charset, *from);
				return charlen;
			}
		}
	} else {
		for (i = 0; (i < len) && from[i]; i++)
			to[i] = (wchar_t) from[i];
	}

	to[i] = 0;
	return i;
}

/*
 * NAME:	get_UCSname()
 *
 * FUNCTION:	Allocate and translate to unicode string
 *
 */
int get_UCSname(struct component_name * uniName, struct dentry *dentry)
{
	struct nls_table *nls_tab = JFS_SBI(dentry->d_sb)->nls_tab;
	int length = dentry->d_name.len;

	if (length > JFS_NAME_MAX)
		return -ENAMETOOLONG;

	uniName->name =
	    kmalloc((length + 1) * sizeof(wchar_t), GFP_NOFS);

	if (uniName->name == NULL)
		return -ENOMEM;

	uniName->namlen = jfs_strtoUCS(uniName->name, dentry->d_name.name,
				       length, nls_tab);

	if (uniName->namlen < 0) {
		kfree(uniName->name);
		return uniName->namlen;
	}

	return 0;
}
ate-remove'/><input type='hidden' name='id' value='ca92e6c7e6329029d7188487a5c32e86ef471977'/><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2017-01-18 11:13:41 -0800</td></tr>
<tr><th>committer</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2017-01-18 11:13:41 -0800</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/atm?h=nds-private-remove&amp;id=ca92e6c7e6329029d7188487a5c32e86ef471977'>ca92e6c7e6329029d7188487a5c32e86ef471977</a> (<a href='/cgit.cgi/linux/net-next.git/patch/net/atm?id=ca92e6c7e6329029d7188487a5c32e86ef471977'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?h=nds-private-remove&amp;id=ca92e6c7e6329029d7188487a5c32e86ef471977'>704fb5c2ca533cdb569826522eed0dbbcf31f316</a> /<a href='/cgit.cgi/linux/net-next.git/tree/net/atm?h=nds-private-remove&amp;id=ca92e6c7e6329029d7188487a5c32e86ef471977'>net/atm</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/atm?h=nds-private-remove&amp;id=0b75f821ec8be459dd4dec77be39595d989d77ac'>0b75f821ec8be459dd4dec77be39595d989d77ac</a> (<a href='/cgit.cgi/linux/net-next.git/diff/net/atm?h=nds-private-remove&amp;id=ca92e6c7e6329029d7188487a5c32e86ef471977&amp;id2=0b75f821ec8be459dd4dec77be39595d989d77ac'>diff</a>)</td></tr><tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/atm?h=nds-private-remove&amp;id=4205e4786d0b9fc3b4fec7b1910cf645a0468307'>4205e4786d0b9fc3b4fec7b1910cf645a0468307</a> (<a href='/cgit.cgi/linux/net-next.git/diff/net/atm?h=nds-private-remove&amp;id=ca92e6c7e6329029d7188487a5c32e86ef471977&amp;id2=4205e4786d0b9fc3b4fec7b1910cf645a0468307'>diff</a>)</td></tr></table>
<div class='commit-subject'>Merge branch 'smp-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip</div><div class='commit-msg'>Pull SMP hotplug update from Thomas Gleixner:
 "This contains a trivial typo fix and an extension to the core code for
  dynamically allocating states in the prepare stage.

  The extension is necessary right now because we need a proper way to
  unbreak LTTNG, which iscurrently non functional due to the removal of
  the notifiers. Surely it's out of tree, but it's widely used by
  distros.

  The simple solution would have been to reserve a state for LTTNG, but
  I'm not fond about unused crap in the kernel and the dynamic range,
  which we admittedly should have done right away, allows us to remove
  quite some of the hardcoded states, i.e. those which have no ordering
  requirements. So doing the right thing now is better than having an
  smaller intermediate solution which needs to be reworked anyway"

* 'smp-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  cpu/hotplug: Provide dynamic range for prepare stage
  perf/x86/amd/ibs: Fix typo after cleanup state names in cpu/hotplug
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?h=nds-private-remove&amp;id=ca92e6c7e6329029d7188487a5c32e86ef471977'>Diffstat</a> (limited to 'net/atm')</div><table summary='diffstat' class='diffstat'>