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| author |   Pablo Neira Ayuso <pablo@netfilter.org> | 2014-07-31 20:38:46 +0200 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2014-08-08 16:47:23 +0200 |
| commit | 7926dbfa4bc14e27f4e18a6184a031a1c1e077dc (patch) | |
| tree | 2a92a55987f95c1cda659732c3792b72bb60e942 /net/netfilter/core.c | |
| parent | netfilter: nf_tables: don't update chain with unset counters (diff) | |
| download | linux-dev-7926dbfa4bc14e27f4e18a6184a031a1c1e077dc.tar.xz linux-dev-7926dbfa4bc14e27f4e18a6184a031a1c1e077dc.zip | |
netfilter: don't use mutex_lock_interruptible()
Eric Dumazet reports that getsockopt() or setsockopt() sometimes
returns -EINTR instead of -ENOPROTOOPT, causing headaches to
application developers.
This patch replaces all the mutex_lock_interruptible() by mutex_lock()
in the netfilter tree, as there is no reason we should sleep for a
long time there.
Reported-by: Eric Dumazet <edumazet@google.com>
Suggested-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Acked-by: Julian Anastasov <ja@ssi.bg>
Diffstat (limited to 'net/netfilter/core.c')
| -rw-r--r-- | net/netfilter/core.c | 11 |
1 files changed, 2 insertions, 9 deletions
diff --git a/net/netfilter/core.c b/net/netfilter/core.c index 1fbab0cdd302..a93c97f106d4 100644 --- a/net/netfilter/core.c +++ b/net/netfilter/core.c @@ -35,11 +35,7 @@ EXPORT_SYMBOL_GPL(nf_ipv6_ops); int nf_register_afinfo(const struct nf_afinfo *afinfo) { - int err; - - err = mutex_lock_interruptible(&afinfo_mutex); - if (err < 0) - return err; + mutex_lock(&afinfo_mutex); RCU_INIT_POINTER(nf_afinfo[afinfo->family], afinfo); mutex_unlock(&afinfo_mutex); return 0; @@ -68,11 +64,8 @@ static DEFINE_MUTEX(nf_hook_mutex); int nf_register_hook(struct nf_hook_ops *reg) { struct nf_hook_ops *elem; - int err; - err = mutex_lock_interruptible(&nf_hook_mutex); - if (err < 0) - return err; + mutex_lock(&nf_hook_mutex); list_for_each_entry(elem, &nf_hooks[reg->pf][reg->hooknum], list) { if (reg->priority < elem->priority) break; |