Skip to main content

Browse the archive

Revision 92a8109e4d3a34fb6b115c9098b51767dc933444 authored by Ross Lagerwall on 08 January 2019, 18:30:56 UTC, committed by Steve French on 11 January 2019, 13:14:40 UTC 
cifs: Limit memory used by lock request calls to a page
 
The code tries to allocate a contiguous buffer with a size supplied by
the server (maxBuf). This could fail if memory is fragmented since it
results in high order allocations for commonly used server
implementations. It is also wasteful since there are probably
few locks in the usual case. Limit the buffer to be no larger than a
page to avoid memory allocation failures due to fragmentation.

Signed-off-by: Ross Lagerwall <ross.lagerwall@citrix.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
1 parent 15bc77f
Raw File
soft-interface.h 
/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright (C) 2007-2018  B.A.T.M.A.N. contributors:
 *
 * Marek Lindner
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of version 2 of the GNU General Public
 * License as published by the Free Software Foundation.
 *
 * 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, see <http://www.gnu.org/licenses/>.
 */

#ifndef _NET_BATMAN_ADV_SOFT_INTERFACE_H_
#define _NET_BATMAN_ADV_SOFT_INTERFACE_H_

#include "main.h"

#include <linux/types.h>
#include <net/rtnetlink.h>

struct net_device;
struct net;
struct sk_buff;

int batadv_skb_head_push(struct sk_buff *skb, unsigned int len);
void batadv_interface_rx(struct net_device *soft_iface,
			 struct sk_buff *skb, int hdr_size,
			 struct batadv_orig_node *orig_node);
struct net_device *batadv_softif_create(struct net *net, const char *name);
void batadv_softif_destroy_sysfs(struct net_device *soft_iface);
bool batadv_softif_is_valid(const struct net_device *net_dev);
extern struct rtnl_link_ops batadv_link_ops;
int batadv_softif_create_vlan(struct batadv_priv *bat_priv, unsigned short vid);
void batadv_softif_vlan_put(struct batadv_softif_vlan *softif_vlan);
struct batadv_softif_vlan *batadv_softif_vlan_get(struct batadv_priv *bat_priv,
						  unsigned short vid);

#endif /* _NET_BATMAN_ADV_SOFT_INTERFACE_H_ */
back to top