diff options
Diffstat (limited to 'include/net/inet_frag.h')
| -rw-r--r-- | include/net/inet_frag.h | 13 |
1 files changed, 6 insertions, 7 deletions
diff --git a/include/net/inet_frag.h b/include/net/inet_frag.h index d9cc5bb64854..6f4930a0b660 100644 --- a/include/net/inet_frag.h +++ b/include/net/inet_frag.h @@ -53,11 +53,6 @@ struct inet_frag_bucket { struct inet_frags { struct inet_frag_bucket hash[INETFRAGS_HASHSZ]; - /* This rwlock is a global lock (seperate per IPv4, IPv6 and - * netfilter). Important to keep this on a seperate cacheline. - * Its primarily a rebuild protection rwlock. - */ - rwlock_t lock ____cacheline_aligned_in_smp; struct work_struct frags_work; unsigned int next_bucket; @@ -66,8 +61,12 @@ struct inet_frags { /* The first call to hashfn is responsible to initialize * rnd. This is best done with net_get_random_once. + * + * rnd_seqlock is used to let hash insertion detect + * when it needs to re-lookup the hash chain to use. */ u32 rnd; + seqlock_t rnd_seqlock; int qsize; unsigned int (*hashfn)(const struct inet_frag_queue *); @@ -89,8 +88,8 @@ void inet_frags_exit_net(struct netns_frags *nf, struct inet_frags *f); void inet_frag_kill(struct inet_frag_queue *q, struct inet_frags *f); void inet_frag_destroy(struct inet_frag_queue *q, struct inet_frags *f); struct inet_frag_queue *inet_frag_find(struct netns_frags *nf, - struct inet_frags *f, void *key, unsigned int hash) - __releases(&f->lock); + struct inet_frags *f, void *key, unsigned int hash); + void inet_frag_maybe_warn_overflow(struct inet_frag_queue *q, const char *prefix); |