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Commit 6ce3b4dc authored by Eric Dumazet's avatar Eric Dumazet Committed by David S. Miller
Browse files

inet: rename netns_frags to fqdir 



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: default avatarEric Dumazet <edumazet@google.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent ddf6ddb0

include/net/inet_frag.h

+15 −14
Original line number Diff line number Diff line
@@ -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 :

include/net/netns/ieee802154_6lowpan.h

+1 −1
Original line number Diff line number Diff line
@@ -16,7 +16,7 @@ struct netns_sysctl_lowpan { 


struct netns_ieee802154_lowpan {

	struct netns_sysctl_lowpan sysctl;

	struct netns_frags	frags;

	struct fqdir	frags;

};



#endif

include/net/netns/ipv4.h

+1 −1
Original line number Diff line number Diff line
@@ -72,7 +72,7 @@ struct netns_ipv4 { 


	struct inet_peer_base	*peers;

	struct sock  * __percpu	*tcp_sk;

	struct netns_frags	frags;

	struct fqdir	frags;

#ifdef CONFIG_NETFILTER

	struct xt_table		*iptable_filter;

	struct xt_table		*iptable_mangle;

include/net/netns/ipv6.h

+2 −2
Original line number Diff line number Diff line
@@ -58,7 +58,7 @@ struct netns_ipv6 { 
	struct ipv6_devconf	*devconf_all;

	struct ipv6_devconf	*devconf_dflt;

	struct inet_peer_base	*peers;

	struct netns_frags	frags;

	struct fqdir	frags;

#ifdef CONFIG_NETFILTER

	struct xt_table		*ip6table_filter;

	struct xt_table		*ip6table_mangle;
@@ -116,7 +116,7 @@ struct netns_ipv6 { 


#if IS_ENABLED(CONFIG_NF_DEFRAG_IPV6)

struct netns_nf_frag {

	struct netns_frags	frags;

	struct fqdir	frags;

};

#endif

net/ieee802154/6lowpan/reassembly.c

+1 −1
Original line number Diff line number Diff line
@@ -139,7 +139,7 @@ static int lowpan_frag_queue(struct lowpan_frag_queue *fq, 
		fq->q.flags |= INET_FRAG_FIRST_IN;



	fq->q.meat += skb->len;

	add_frag_mem_limit(fq->q.net, skb->truesize);

	add_frag_mem_limit(fq->q.fqdir, skb->truesize);



	if (fq->q.flags == (INET_FRAG_FIRST_IN | INET_FRAG_LAST_IN) &&

	    fq->q.meat == fq->q.len) {