git/linux-cryptodev-2.6
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/herbert/cryptodev-2.6.git synced 2026-04-27 03:49:57 -04:00
Code Issues Packages Projects Releases Wiki Activity

ipmr, ip6mr: Unite mfc seq logic

Browse Source 
With the exception of the final dump, ipmr and ip6mr have the exact same
seq logic for traversing a given mr_table. Refactor that code and make
it common.

Signed-off-by: Yuval Mintz <yuvalm@mellanox.com>
Acked-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Yuval Mintz
2018-02-28 23:29:36 +02:00
committed by David S. Miller
parent 845c9a7ae7
commit c8d6196803
4 changed files with 143 additions and 178 deletions
Download Patch File Download Diff File Expand all files Collapse all files

69
include/linux/mroute_base.h
View File

@@ -3,6 +3,7 @@
#include <linux/netdevice.h>
#include <linux/rhashtable.h>
#include <linux/spinlock.h>
#include <net/net_namespace.h>
#include <net/sock.h>
@@ -203,4 +204,72 @@ static inline void *mr_mfc_find(struct mr_table *mrt, void *hasharg)
{
return mr_mfc_find_parent(mrt, hasharg, -1);
}
#ifdef CONFIG_PROC_FS
struct mr_mfc_iter {
struct seq_net_private p;
struct mr_table *mrt;
struct list_head *cache;
/* Lock protecting the mr_table's unresolved queue */
spinlock_t *lock;
};
#ifdef CONFIG_IP_MROUTE_COMMON
/* These actually return 'struct mr_mfc *', but to avoid need for explicit
* castings they simply return void.
*/
void *mr_mfc_seq_idx(struct net *net,
struct mr_mfc_iter *it, loff_t pos);
void *mr_mfc_seq_next(struct seq_file *seq, void *v,
loff_t *pos);
static inline void *mr_mfc_seq_start(struct seq_file *seq, loff_t *pos,
struct mr_table *mrt, spinlock_t *lock)
{
struct mr_mfc_iter *it = seq->private;
it->mrt = mrt;
it->cache = NULL;
it->lock = lock;
return *pos ? mr_mfc_seq_idx(seq_file_net(seq),
seq->private, *pos - 1)
: SEQ_START_TOKEN;
}
static inline void mr_mfc_seq_stop(struct seq_file *seq, void *v)
{
struct mr_mfc_iter *it = seq->private;
struct mr_table *mrt = it->mrt;
if (it->cache == &mrt->mfc_unres_queue)
spin_unlock_bh(it->lock);
else if (it->cache == &mrt->mfc_cache_list)
rcu_read_unlock();
}
#else
static inline void *mr_mfc_seq_idx(struct net *net,
struct mr_mfc_iter *it, loff_t pos)
{
return NULL;
}
static inline void *mr_mfc_seq_next(struct seq_file *seq, void *v,
loff_t *pos)
{
return NULL;
}
static inline void *mr_mfc_seq_start(struct seq_file *seq, loff_t *pos,
struct mr_table *mrt, spinlock_t *lock)
{
return NULL;
}
static inline void mr_mfc_seq_stop(struct seq_file *seq, void *v)
{
}
#endif
#endif
#endif