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inet: rename netns_frags to fqdir

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1) struct netns_frags is renamed to struct fqdir
  This structure is really holding many frag queues in a hash table.

2) (struct inet_frag_queue)->net field is renamed to fqdir
  since net is generally associated to a 'struct net' pointer
  in networking stack.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric Dumazet 2019-05-24 09:03:30 -07:00 • committed by David S. Miller
parent ddf6ddb057
commit 6ce3b4dcee
9 changed files with 61 additions and 60 deletions
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29
include/net/inet_frag.h
View file

@ -4,7 +4,8 @@
#include <linux/rhashtable-types.h>
struct netns_frags {
/* Per netns frag queues directory */
struct fqdir {
/* sysctls */
long high_thresh;
long low_thresh;
@ -64,7 +65,7 @@ struct frag_v6_compare_key {
* @meat: length of received fragments so far
* @flags: fragment queue flags
* @max_size: maximum received fragment size
* @net: namespace that this frag belongs to
* @fqdir: pointer to struct fqdir
* @rcu: rcu head for freeing deferall
*/
struct inet_frag_queue {
@ -84,7 +85,7 @@ struct inet_frag_queue {
int meat;
__u8 flags;
u16 max_size;
struct netns_frags *net;
struct fqdir *fqdir;
struct rcu_head rcu;
};
@ -103,16 +104,16 @@ struct inet_frags {
int inet_frags_init(struct inet_frags *);
void inet_frags_fini(struct inet_frags *);
static inline int inet_frags_init_net(struct netns_frags *nf)
static inline int inet_frags_init_net(struct fqdir *fqdir)
{
atomic_long_set(&nf->mem, 0);
return rhashtable_init(&nf->rhashtable, &nf->f->rhash_params);
atomic_long_set(&fqdir->mem, 0);
return rhashtable_init(&fqdir->rhashtable, &fqdir->f->rhash_params);
}
void inet_frags_exit_net(struct netns_frags *nf);
void inet_frags_exit_net(struct fqdir *fqdir);
void inet_frag_kill(struct inet_frag_queue *q);
void inet_frag_destroy(struct inet_frag_queue *q);
struct inet_frag_queue *inet_frag_find(struct netns_frags *nf, void *key);
struct inet_frag_queue *inet_frag_find(struct fqdir *fqdir, void *key);
/* Free all skbs in the queue; return the sum of their truesizes. */
unsigned int inet_frag_rbtree_purge(struct rb_root *root);
@ -125,19 +126,19 @@ static inline void inet_frag_put(struct inet_frag_queue *q)
/* Memory Tracking Functions. */
static inline long frag_mem_limit(const struct netns_frags *nf)
static inline long frag_mem_limit(const struct fqdir *fqdir)
{
return atomic_long_read(&nf->mem);
return atomic_long_read(&fqdir->mem);
}
static inline void sub_frag_mem_limit(struct netns_frags *nf, long val)
static inline void sub_frag_mem_limit(struct fqdir *fqdir, long val)
{
atomic_long_sub(val, &nf->mem);
atomic_long_sub(val, &fqdir->mem);
}
static inline void add_frag_mem_limit(struct netns_frags *nf, long val)
static inline void add_frag_mem_limit(struct fqdir *fqdir, long val)
{
atomic_long_add(val, &nf->mem);
atomic_long_add(val, &fqdir->mem);
}
/* RFC 3168 support :