/*
 *   Copyright (C) International Business Machines  Corp., 2002-2004
 *   Copyright (C) Andreas Gruenbacher, 2001
 *   Copyright (C) Linus Torvalds, 1991, 1992
 *
 *   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/sched.h>
#include <linux/slab.h>
#include <linux/fs.h>
#include <linux/posix_acl_xattr.h>
#include "jfs_incore.h"
#include "jfs_txnmgr.h"
#include "jfs_xattr.h"
#include "jfs_acl.h"

struct posix_acl *jfs_get_acl(struct inode *inode, int type)
{
	struct posix_acl *acl;
	char *ea_name;
	int size;
	char *value = NULL;

	switch(type) {
		case ACL_TYPE_ACCESS:
			ea_name = XATTR_NAME_POSIX_ACL_ACCESS;
			break;
		case ACL_TYPE_DEFAULT:
			ea_name = XATTR_NAME_POSIX_ACL_DEFAULT;
			break;
		default:
			return ERR_PTR(-EINVAL);
	}

	size = __jfs_getxattr(inode, ea_name, NULL, 0);

	if (size > 0) {
		value = kmalloc(size, GFP_KERNEL);
		if (!value)
			return ERR_PTR(-ENOMEM);
		size = __jfs_getxattr(inode, ea_name, value, size);
	}

	if (size < 0) {
		if (size == -ENODATA)
			acl = NULL;
		else
			acl = ERR_PTR(size);
	} else {
		acl = posix_acl_from_xattr(&init_user_ns, value, size);
	}
	kfree(value);
	return acl;
}

static int __jfs_set_acl(tid_t tid, struct inode *inode, int type,
		       struct posix_acl *acl)
{
	char *ea_name;
	int rc;
	int size = 0;
	char *value = NULL;

	switch (type) {
	case ACL_TYPE_ACCESS:
		ea_name = XATTR_NAME_POSIX_ACL_ACCESS;
		if (acl) {
			rc = posix_acl_update_mode(inode, &inode->i_mode, &acl);
			if (rc)
				return rc;
			inode->i_ctime = current_time(inode);
			mark_inode_dirty(inode);
		}
		break;
	case ACL_TYPE_DEFAULT:
		ea_name = XATTR_NAME_POSIX_ACL_DEFAULT;
		break;
	default:
		return -EINVAL;
	}

	if (acl) {
		size = posix_acl_xattr_size(acl->a_count);
		value = kmalloc(size, GFP_KERNEL);
		if (!value)
			return -ENOMEM;
		rc = posix_acl_to_xattr(&init_user_ns, acl, value, size);
		if (rc < 0)
			goto out;
	}
	rc = __jfs_setxattr(tid, inode, ea_name, value, size, 0);
out:
	kfree(value);

	if (!rc)
		set_cached_acl(inode, type, acl);

	return rc;
}

int jfs_set_acl(struct inode *inode, struct posix_acl *acl, int type)
{
	int rc;
	tid_t tid;

	tid = txBegin(inode->i_sb, 0);
	mutex_lock(&JFS_IP(inode)->commit_mutex);
	rc = __jfs_set_acl(tid, inode, type, acl);
	if (!rc)
		rc = txCommit(tid, 1, &inode, 0);
	txEnd(tid);
	mutex_unlock(&JFS_IP(inode)->commit_mutex);
	return rc;
}

int jfs_init_acl(tid_t tid, struct inode *inode, struct inode *dir)
{
	struct posix_acl *default_acl, *acl;
	int rc = 0;

	rc = posix_acl_create(dir, &inode->i_mode, &default_acl, &acl);
	if (rc)
		return rc;

	if (default_acl) {
		rc = __jfs_set_acl(tid, inode, ACL_TYPE_DEFAULT, default_acl);
		posix_acl_release(default_acl);
	}

	if (acl) {
		if (!rc)
			rc = __jfs_set_acl(tid, inode, ACL_TYPE_ACCESS, acl);
		posix_acl_release(acl);
	}

	JFS_IP(inode)->mode2 = (JFS_IP(inode)->mode2 & 0xffff0000) |
			       inode->i_mode;

	return rc;
}
vate-remove&amp;id=2d5a7101a140adcf7a5d8677649847fbb2dd5a2f'>cma.h</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='h' value='nds-private-remove'/><input type='hidden' name='id' value='2d5a7101a140adcf7a5d8677649847fbb2dd5a2f'/><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'>2017-01-15 12:38:53 -0800</td></tr>
<tr><th>committer</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2017-01-15 12:38:53 -0800</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/trace/events/cma.h?h=nds-private-remove&amp;id=2d5a7101a140adcf7a5d8677649847fbb2dd5a2f'>2d5a7101a140adcf7a5d8677649847fbb2dd5a2f</a> (<a href='/cgit.cgi/linux/net-next.git/patch/include/trace/events/cma.h?id=2d5a7101a140adcf7a5d8677649847fbb2dd5a2f'>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=2d5a7101a140adcf7a5d8677649847fbb2dd5a2f'>02e3532964dd4c42aa6ea2187fee67e6dfee36dd</a> /<a href='/cgit.cgi/linux/net-next.git/tree/include/trace/events/cma.h?h=nds-private-remove&amp;id=2d5a7101a140adcf7a5d8677649847fbb2dd5a2f'>include/trace/events/cma.h</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/trace/events/cma.h?h=nds-private-remove&amp;id=7f138b9706f5f3528d598aefd35337d54a8c1afb'>7f138b9706f5f3528d598aefd35337d54a8c1afb</a> (<a href='/cgit.cgi/linux/net-next.git/diff/include/trace/events/cma.h?h=nds-private-remove&amp;id=2d5a7101a140adcf7a5d8677649847fbb2dd5a2f&amp;id2=7f138b9706f5f3528d598aefd35337d54a8c1afb'>diff</a>)</td></tr><tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/trace/events/cma.h?h=nds-private-remove&amp;id=c7334ce814f7e5d8fc1f9b3126cda0640c2f81b3'>c7334ce814f7e5d8fc1f9b3126cda0640c2f81b3</a> (<a href='/cgit.cgi/linux/net-next.git/diff/include/trace/events/cma.h?h=nds-private-remove&amp;id=2d5a7101a140adcf7a5d8677649847fbb2dd5a2f&amp;id2=c7334ce814f7e5d8fc1f9b3126cda0640c2f81b3'>diff</a>)</td></tr></table>
<div class='commit-subject'>Merge tag 'driver-core-4.10-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core</div><div class='commit-msg'>Pull driver core fix from Greg KH:
 "Here is a single patch being reverted to remove a feature that was
  added in 4.10-rc1 that isn't quite ready for release.

  It will be redone as a debugfs file instead of a sysfs file in the
  future"

* tag 'driver-core-4.10-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
  Revert "driver core: Add deferred_probe attribute to devices in sysfs"
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?h=nds-private-remove&amp;id=2d5a7101a140adcf7a5d8677649847fbb2dd5a2f'>Diffstat</a> (limited to 'include/trace/events/cma.h')</div><table summary='diffstat' class='diffstat'>