/*
 * sysctl.c - Code for sysctl handling in NTFS Linux kernel driver. Part of
 *	      the Linux-NTFS project. Adapted from the old NTFS driver,
 *	      Copyright (C) 1997 Martin von Löwis, Régis Duchesne
 *
 * Copyright (c) 2002-2005 Anton Altaparmakov
 *
 * This program/include file 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/include file 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 (in the main directory of the Linux-NTFS
 * distribution in the file COPYING); if not, write to the Free Software
 * Foundation,Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#ifdef DEBUG

#include <linux/module.h>

#ifdef CONFIG_SYSCTL

#include <linux/proc_fs.h>
#include <linux/sysctl.h>

#include "sysctl.h"
#include "debug.h"

/* Definition of the ntfs sysctl. */
static struct ctl_table ntfs_sysctls[] = {
	{
		.procname	= "ntfs-debug",
		.data		= &debug_msgs,		/* Data pointer and size. */
		.maxlen		= sizeof(debug_msgs),
		.mode		= 0644,			/* Mode, proc handler. */
		.proc_handler	= proc_dointvec
	},
	{}
};

/* Define the parent directory /proc/sys/fs. */
static struct ctl_table sysctls_root[] = {
	{
		.procname	= "fs",
		.mode		= 0555,
		.child		= ntfs_sysctls
	},
	{}
};

/* Storage for the sysctls header. */
static struct ctl_table_header *sysctls_root_table;

/**
 * ntfs_sysctl - add or remove the debug sysctl
 * @add:	add (1) or remove (0) the sysctl
 *
 * Add or remove the debug sysctl. Return 0 on success or -errno on error.
 */
int ntfs_sysctl(int add)
{
	if (add) {
		BUG_ON(sysctls_root_table);
		sysctls_root_table = register_sysctl_table(sysctls_root);
		if (!sysctls_root_table)
			return -ENOMEM;
	} else {
		BUG_ON(!sysctls_root_table);
		unregister_sysctl_table(sysctls_root_table);
		sysctls_root_table = NULL;
	}
	return 0;
}

#endif /* CONFIG_SYSCTL */
#endif /* DEBUG */
rf/bench'>
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<tr><th>author</th><td>Ville Syrjälä &lt;ville.syrjala@linux.intel.com&gt;</td><td class='right'>2016-12-21 16:45:47 +0200</td></tr>
<tr><th>committer</th><td>Jani Nikula &lt;jani.nikula@intel.com&gt;</td><td class='right'>2017-01-03 11:41:05 +0200</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/?id=a6d3e7d35d088b2aabad1688b740e17bfdf566c5'>a6d3e7d35d088b2aabad1688b740e17bfdf566c5</a> (<a href='/cgit.cgi/linux/net-next.git/patch/?id=a6d3e7d35d088b2aabad1688b740e17bfdf566c5'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=a6d3e7d35d088b2aabad1688b740e17bfdf566c5'>41e7d164e1e459f5b0ca3a42364477b4a67b5d33</a></td></tr>
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<div class='commit-subject'>drm/i915: Initialize overlay-&gt;last_flip properly</div><div class='commit-msg'>Initialize overlay-&gt;last_flip properly instead of leaving it zeroed.

Cc: stable@vger.kernel.org
Cc: Chris Wilson &lt;chris@chris-wilson.co.uk&gt;
Fixes: 0d9bdd886f29 ("drm/i915: Convert intel_overlay to request tracking")
Reviewed-by: Chris Wilson &lt;chris@chris-wilson.co.uk&gt;
Signed-off-by: Ville Syrjälä &lt;ville.syrjala@linux.intel.com&gt;
Link: http://patchwork.freedesktop.org/patch/msgid/20161221144547.27319-1-ville.syrjala@linux.intel.com
(cherry picked from commit 330afdb1df0f3fb48583105493a8f4f8d9e3af36)
Signed-off-by: Jani Nikula &lt;jani.nikula@intel.com&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=a6d3e7d35d088b2aabad1688b740e17bfdf566c5'>Diffstat</a></div><table summary='diffstat' class='diffstat'>