diff options
Diffstat (limited to 'net')
| -rw-r--r-- | net/ipv4/ipmr.c | 41 |
1 files changed, 28 insertions, 13 deletions
diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c index 8428a0fb5c1..35b868dd3bf 100644 --- a/net/ipv4/ipmr.c +++ b/net/ipv4/ipmr.c @@ -82,8 +82,6 @@ static DEFINE_RWLOCK(mrt_lock); static int mroute_do_assert; /* Set in PIM assert */ static int mroute_do_pim; -static struct mfc_cache *mfc_cache_array[MFC_LINES]; /* Forwarding cache */ - static struct mfc_cache *mfc_unres_queue; /* Queue of unresolved entries */ static atomic_t cache_resolve_queue_len; /* Size of unresolved */ @@ -524,7 +522,7 @@ static struct mfc_cache *ipmr_cache_find(__be32 origin, __be32 mcastgrp) int line = MFC_HASH(mcastgrp, origin); struct mfc_cache *c; - for (c=mfc_cache_array[line]; c; c = c->next) { + for (c = init_net.ipv4.mfc_cache_array[line]; c; c = c->next) { if (c->mfc_origin==origin && c->mfc_mcastgrp==mcastgrp) break; } @@ -764,7 +762,8 @@ static int ipmr_mfc_delete(struct mfcctl *mfc) line = MFC_HASH(mfc->mfcc_mcastgrp.s_addr, mfc->mfcc_origin.s_addr); - for (cp=&mfc_cache_array[line]; (c=*cp) != NULL; cp = &c->next) { + for (cp = &init_net.ipv4.mfc_cache_array[line]; + (c = *cp) != NULL; cp = &c->next) { if (c->mfc_origin == mfc->mfcc_origin.s_addr && c->mfc_mcastgrp == mfc->mfcc_mcastgrp.s_addr) { write_lock_bh(&mrt_lock); @@ -785,7 +784,8 @@ static int ipmr_mfc_add(struct mfcctl *mfc, int mrtsock) line = MFC_HASH(mfc->mfcc_mcastgrp.s_addr, mfc->mfcc_origin.s_addr); - for (cp=&mfc_cache_array[line]; (c=*cp) != NULL; cp = &c->next) { + for (cp = &init_net.ipv4.mfc_cache_array[line]; + (c = *cp) != NULL; cp = &c->next) { if (c->mfc_origin == mfc->mfcc_origin.s_addr && c->mfc_mcastgrp == mfc->mfcc_mcastgrp.s_addr) break; @@ -816,8 +816,8 @@ static int ipmr_mfc_add(struct mfcctl *mfc, int mrtsock) c->mfc_flags |= MFC_STATIC; write_lock_bh(&mrt_lock); - c->next = mfc_cache_array[line]; - mfc_cache_array[line] = c; + c->next = init_net.ipv4.mfc_cache_array[line]; + init_net.ipv4.mfc_cache_array[line] = c; write_unlock_bh(&mrt_lock); /* @@ -866,7 +866,7 @@ static void mroute_clean_tables(struct sock *sk) for (i=0; i<MFC_LINES; i++) { struct mfc_cache *c, **cp; - cp = &mfc_cache_array[i]; + cp = &init_net.ipv4.mfc_cache_array[i]; while ((c = *cp) != NULL) { if (c->mfc_flags&MFC_STATIC) { cp = &c->next; @@ -1767,10 +1767,11 @@ static struct mfc_cache *ipmr_mfc_seq_idx(struct ipmr_mfc_iter *it, loff_t pos) { struct mfc_cache *mfc; - it->cache = mfc_cache_array; + it->cache = init_net.ipv4.mfc_cache_array; read_lock(&mrt_lock); for (it->ct = 0; it->ct < MFC_LINES; it->ct++) - for (mfc = mfc_cache_array[it->ct]; mfc; mfc = mfc->next) + for (mfc = init_net.ipv4.mfc_cache_array[it->ct]; + mfc; mfc = mfc->next) if (pos-- == 0) return mfc; read_unlock(&mrt_lock); @@ -1812,10 +1813,10 @@ static void *ipmr_mfc_seq_next(struct seq_file *seq, void *v, loff_t *pos) if (it->cache == &mfc_unres_queue) goto end_of_list; - BUG_ON(it->cache != mfc_cache_array); + BUG_ON(it->cache != init_net.ipv4.mfc_cache_array); while (++it->ct < MFC_LINES) { - mfc = mfc_cache_array[it->ct]; + mfc = init_net.ipv4.mfc_cache_array[it->ct]; if (mfc) return mfc; } @@ -1843,7 +1844,7 @@ static void ipmr_mfc_seq_stop(struct seq_file *seq, void *v) if (it->cache == &mfc_unres_queue) spin_unlock_bh(&mfc_unres_lock); - else if (it->cache == mfc_cache_array) + else if (it->cache == init_net.ipv4.mfc_cache_array) read_unlock(&mrt_lock); } @@ -1929,12 +1930,26 @@ static int __net_init ipmr_net_init(struct net *net) err = -ENOMEM; goto fail; } + + /* Forwarding cache */ + net->ipv4.mfc_cache_array = kcalloc(MFC_LINES, + sizeof(struct mfc_cache *), + GFP_KERNEL); + if (!net->ipv4.mfc_cache_array) { + err = -ENOMEM; + goto fail_mfc_cache; + } + return 0; + +fail_mfc_cache: + kfree(net->ipv4.vif_table); fail: return err; } static void __net_exit ipmr_net_exit(struct net *net) { + kfree(net->ipv4.mfc_cache_array); kfree(net->ipv4.vif_table); } |