xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

flowcache: Fix resource leaks on namespace exit.

Browse Source 
We leak an active timer, the hotcpu notifier and all allocated
resources when we exit a namespace. Fix this by introducing a
flow_cache_fini() function where we release the resources before
we exit.

Fixes: ca925cf153 ("flowcache: Make flow cache name space aware")
Reported-by: Jakub Kicinski <moorray3@wp.pl>
Tested-by: Jakub Kicinski <moorray3@wp.pl>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Fan Du <fan.du@windriver.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Steffen Klassert
2014-03-12 09:43:17 +01:00
committed by David S. Miller
parent 1f36fc74d8
commit 4a93f5095a
3 changed files with 26 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

19
net/core/flow.c
View File

@@ -484,3 +484,22 @@ err:
return -ENOMEM;
}
EXPORT_SYMBOL(flow_cache_init);
void flow_cache_fini(struct net *net)
{
int i;
struct flow_cache *fc = &net->xfrm.flow_cache_global;
del_timer_sync(&fc->rnd_timer);
unregister_hotcpu_notifier(&fc->hotcpu_notifier);
for_each_possible_cpu(i) {
struct flow_cache_percpu *fcp = per_cpu_ptr(fc->percpu, i);
kfree(fcp->hash_table);
fcp->hash_table = NULL;
}
free_percpu(fc->percpu);
fc->percpu = NULL;
}
EXPORT_SYMBOL(flow_cache_fini);