/*
 * Procfs support for lockd
 *
 * Copyright (c) 2014 Jeff Layton <jlayton@primarydata.com>
 */

#include <linux/fs.h>
#include <linux/proc_fs.h>
#include <linux/module.h>
#include <linux/nsproxy.h>
#include <net/net_namespace.h>

#include "netns.h"
#include "procfs.h"

/*
 * We only allow strings that start with 'Y', 'y', or '1'.
 */
static ssize_t
nlm_end_grace_write(struct file *file, const char __user *buf, size_t size,
		    loff_t *pos)
{
	char *data;
	struct lockd_net *ln = net_generic(current->nsproxy->net_ns,
					   lockd_net_id);

	if (size < 1)
		return -EINVAL;

	data = simple_transaction_get(file, buf, size);
	if (IS_ERR(data))
		return PTR_ERR(data);

	switch(data[0]) {
	case 'Y':
	case 'y':
	case '1':
		locks_end_grace(&ln->lockd_manager);
		break;
	default:
		return -EINVAL;
	}

	return size;
}

static ssize_t
nlm_end_grace_read(struct file *file, char __user *buf, size_t size,
		   loff_t *pos)
{
	struct lockd_net *ln = net_generic(current->nsproxy->net_ns,
					   lockd_net_id);
	char resp[3];

	resp[0] = list_empty(&ln->lockd_manager.list) ? 'Y' : 'N';
	resp[1] = '\n';
	resp[2] = '\0';

	return simple_read_from_buffer(buf, size, pos, resp, sizeof(resp));
}

static const struct file_operations lockd_end_grace_operations = {
	.write		= nlm_end_grace_write,
	.read		= nlm_end_grace_read,
	.llseek		= default_llseek,
	.release	= simple_transaction_release,
};

int __init
lockd_create_procfs(void)
{
	struct proc_dir_entry *entry;

	entry = proc_mkdir("fs/lockd", NULL);
	if (!entry)
		return -ENOMEM;
	entry = proc_create("nlm_end_grace", S_IRUGO|S_IWUSR, entry,
				 &lockd_end_grace_operations);
	if (!entry) {
		remove_proc_entry("fs/lockd", NULL);
		return -ENOMEM;
	}
	return 0;
}

void __exit
lockd_remove_procfs(void)
{
	remove_proc_entry("fs/lockd/nlm_end_grace", NULL);
	remove_proc_entry("fs/lockd", NULL);
}
b/mon/Kconfig?id=2e4333c14de06a333783d6812cf3c4998f78b0c8'>tree</a><a class='active' href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/mon/Kconfig?id=2e4333c14de06a333783d6812cf3c4998f78b0c8'>commit</a><a href='/cgit.cgi/linux/net-next.git/diff/drivers/usb/mon/Kconfig?id=2e4333c14de06a333783d6812cf3c4998f78b0c8'>diff</a></td><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/drivers/usb/mon/Kconfig'>
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?id=2e4333c14de06a333783d6812cf3c4998f78b0c8'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/drivers?id=2e4333c14de06a333783d6812cf3c4998f78b0c8'>drivers</a>/<a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb?id=2e4333c14de06a333783d6812cf3c4998f78b0c8'>usb</a>/<a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/mon?id=2e4333c14de06a333783d6812cf3c4998f78b0c8'>mon</a>/<a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/mon/Kconfig?id=2e4333c14de06a333783d6812cf3c4998f78b0c8'>Kconfig</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='2e4333c14de06a333783d6812cf3c4998f78b0c8'/><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'>2016-12-11 10:17:39 -0800</td></tr>
<tr><th>committer</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2016-12-11 10:17:39 -0800</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/mon/Kconfig?id=2e4333c14de06a333783d6812cf3c4998f78b0c8'>2e4333c14de06a333783d6812cf3c4998f78b0c8</a> (<a href='/cgit.cgi/linux/net-next.git/patch/drivers/usb/mon/Kconfig?id=2e4333c14de06a333783d6812cf3c4998f78b0c8'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=2e4333c14de06a333783d6812cf3c4998f78b0c8'>368428514d70f34f2261c7f954f241f886d6bb51</a> /<a href='/cgit.cgi/linux/net-next.git/tree/drivers/usb/mon/Kconfig?id=2e4333c14de06a333783d6812cf3c4998f78b0c8'>drivers/usb/mon/Kconfig</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/mon/Kconfig?id=045169816b31b10faed984b01c390db1b32ee4c1'>045169816b31b10faed984b01c390db1b32ee4c1</a> (<a href='/cgit.cgi/linux/net-next.git/diff/drivers/usb/mon/Kconfig?id=2e4333c14de06a333783d6812cf3c4998f78b0c8&amp;id2=045169816b31b10faed984b01c390db1b32ee4c1'>diff</a>)</td></tr><tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/mon/Kconfig?id=ba735155b9647b6167fd50276ca0fbfbce4e836c'>ba735155b9647b6167fd50276ca0fbfbce4e836c</a> (<a href='/cgit.cgi/linux/net-next.git/diff/drivers/usb/mon/Kconfig?id=2e4333c14de06a333783d6812cf3c4998f78b0c8&amp;id2=ba735155b9647b6167fd50276ca0fbfbce4e836c'>diff</a>)</td></tr></table>
<div class='commit-subject'>Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus</div><div class='commit-msg'>Pull MIPS fixes from Ralf Baechle:
 "Two more MIPS fixes for 4.9:

   - RTC: Return -ENODEV so an external RTC will be tried

   - Fix mask of GPE frequency

  These two have been tested on Imagination's automated test system and
  also both received positive reviews on the linux-mips mailing list"

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
  MIPS: Lantiq: Fix mask of GPE frequency
  MIPS: Return -ENODEV from weak implementation of rtc_mips_set_time
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=2e4333c14de06a333783d6812cf3c4998f78b0c8'>Diffstat</a> (limited to 'drivers/usb/mon/Kconfig')</div><table summary='diffstat' class='diffstat'>