/* Copyright (C) 2012-2017 B.A.T.M.A.N. contributors:
*
* Martin Hundebøll, Jeppe Ledet-Pedersen
*
* 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
struct batadv_ogm_packet;
struct net_device;
struct seq_file;
struct sk_buff;
#ifdef CONFIG_BATMAN_ADV_NC
void batadv_nc_status_update(struct net_device *net_dev);
int batadv_nc_init(void);
int batadv_nc_mesh_init(struct batadv_priv *bat_priv);
void batadv_nc_mesh_free(struct batadv_priv *bat_priv);
void batadv_nc_update_nc_node(struct batadv_priv *bat_priv,
struct batadv_orig_node *orig_node,
struct batadv_orig_node *orig_neigh_node,
struct batadv_ogm_packet *ogm_packet,
int is_single_hop_neigh);
void batadv_nc_purge_orig(struct batadv_priv *bat_priv,
struct batadv_orig_node *orig_node,
bool (*to_purge)(struct batadv_priv *,
struct batadv_nc_node *));
void batadv_nc_init_bat_priv(struct batadv_priv *bat_priv);
void batadv_nc_init_orig(struct batadv_orig_node *orig_node);
bool batadv_nc_skb_forward(struct sk_buff *skb,
struct batadv_neigh_node *neigh_node);
void batadv_nc_skb_store_for_decoding(struct batadv_priv *bat_priv,
struct sk_buff *skb);
void batadv_nc_skb_store_sniffed_unicast(struct batadv_priv *bat_priv,
struct sk_buff *skb);
int batadv_nc_nodes_seq_print_text(struct seq_file *seq, void *offset);
int batadv_nc_init_debugfs(struct batadv_priv *bat_priv);
#else /* ifdef CONFIG_BATMAN_ADV_NC */
static inline void batadv_nc_status_update(struct net_device *net_dev)
{
}
static inline int batadv_nc_init(void)
{
return 0;
}
static inline int batadv_nc_mesh_init(struct batadv_priv *bat_priv)
{
return 0;
}
static inline void batadv_nc_mesh_free(struct batadv_priv *bat_priv)
{
}
static inline void
batadv_nc_update_nc_node(struct batadv_priv *bat_priv,
struct batadv_orig_node *orig_node,
struct batadv_orig_node *orig_neigh_node,
struct batadv_ogm_packet *ogm_packet,
int is_single_hop_neigh)
{
}
static inline void
batadv_nc_purge_orig(struct batadv_priv *bat_priv,
struct batadv_orig_node *orig_node,
bool (*to_purge)(struct batadv_priv *,
struct batadv_nc_node *))
{
}
static inline void batadv_nc_init_bat_priv(struct batadv_priv *bat_priv)
{
}
static inline void batadv_nc_init_orig(struct batadv_orig_node *orig_node)
{
}
static inline bool batadv_nc_skb_forward(struct sk_buff *skb,
struct batadv_neigh_node *neigh_node)
{
return false;
}
static inline void
batadv_nc_skb_store_for_decoding(struct batadv_priv *bat_priv,
struct sk_buff *skb)
{
}
static inline void
batadv_nc_skb_store_sniffed_unicast(struct batadv_priv *bat_priv,
struct sk_buff *skb)
{
}
static inline int batadv_nc_nodes_seq_print_text(struct seq_file *seq,
void *offset)
{
return 0;
}
static inline int batadv_nc_init_debugfs(struct batadv_priv *bat_priv)
{
return 0;
}
#endif /* ifdef CONFIG_BATMAN_ADV_NC */
#endif /* _NET_BATMAN_ADV_NETWORK_CODING_H_ */
ion>15 20 25 30 35 40 space: include ignore mode: unified ssdiff stat only block: don't try Write Same from __blkdev_issue_zeroout
Write Same can return an error asynchronously if it turns out the
underlying SCSI device does not support Write Same, which makes a
proper fallback to other methods in __blkdev_issue_zeroout impossible.
Thus only issue a Write Same from blkdev_issue_zeroout an don't try it
at all from __blkdev_issue_zeroout as a non-invasive workaround.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reported-by: Junichi Nomura <j-nomura@ce.jp.nec.com>
Fixes: e73c23ff ("block: add async variant of blkdev_issue_zeroout")
Tested-by: Junichi Nomura <j-nomura@ce.jp.nec.com>
Signed-off-by: Jens Axboe <axboe@fb.com>