netdev - [PATCH 3/7] [IPSEC]: Remove gratuitous km wake-up events on ACQUIRE

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Tue, 09 Oct 2007 22:36:33 +0800
From:	Herbert Xu <herbert@...dor.apana.org.au>
To:	"David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org,
	Herbert Xu <herbert@...dor.apana.org.au>
Subject: [PATCH 3/7] [IPSEC]: Remove gratuitous km wake-up events on ACQUIRE

[IPSEC]: Remove gratuitous km wake-up events on ACQUIRE

There is no point in waking people up when creating/updating larval states
because they'll just go back to sleep again as larval states by definition
cannot be found by xfrm_state_find.

We should only wake them up when the larvals mature or die.

Signed-off-by: Herbert Xu <herbert@...dor.apana.org.au>
---

 net/xfrm/xfrm_state.c |    2 --
 1 files changed, 2 deletions(-)

diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c
index a00745a..0d07f6b 100644
--- a/net/xfrm/xfrm_state.c
+++ b/net/xfrm/xfrm_state.c
@@ -848,7 +848,6 @@ static struct xfrm_state *__find_acq_core(unsigned short family, u8 mode, u32 re
 		hlist_add_head(&x->bydst, xfrm_state_bydst+h);
 		h = xfrm_src_hash(daddr, saddr, family);
 		hlist_add_head(&x->bysrc, xfrm_state_bysrc+h);
-		wake_up(&km_waitq);
 
 		xfrm_state_num++;
 
@@ -1311,7 +1310,6 @@ xfrm_alloc_spi(struct xfrm_state *x, __be32 minspi, __be32 maxspi)
 		h = xfrm_spi_hash(&x->id.daddr, x->id.spi, x->id.proto, x->props.family);
 		hlist_add_head(&x->byspi, xfrm_state_byspi+h);
 		spin_unlock_bh(&xfrm_state_lock);
-		wake_up(&km_waitq);
 	}
 }
 EXPORT_SYMBOL(xfrm_alloc_spi);
-
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html