From 8dff7c29707b7514043539f5ab5e0a6eb7bd9dcd Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Fri, 28 Apr 2006 15:23:59 -0700 Subject: [PATCH] [XFRM]: fix softirq-unsafe xfrm typemap->lock use xfrm typemap->lock may be used in softirq context, so all write_lock() uses must be softirq-safe. Signed-off-by: Ingo Molnar Signed-off-by: David S. Miller --- net/xfrm/xfrm_policy.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c index c3725fe2a8fb..e5b0afc94f1e 100644 --- a/net/xfrm/xfrm_policy.c +++ b/net/xfrm/xfrm_policy.c @@ -57,12 +57,12 @@ int xfrm_register_type(struct xfrm_type *type, unsigned short family) return -EAFNOSUPPORT; typemap = afinfo->type_map; - write_lock(&typemap->lock); + write_lock_bh(&typemap->lock); if (likely(typemap->map[type->proto] == NULL)) typemap->map[type->proto] = type; else err = -EEXIST; - write_unlock(&typemap->lock); + write_unlock_bh(&typemap->lock); xfrm_policy_put_afinfo(afinfo); return err; } @@ -78,12 +78,12 @@ int xfrm_unregister_type(struct xfrm_type *type, unsigned short family) return -EAFNOSUPPORT; typemap = afinfo->type_map; - write_lock(&typemap->lock); + write_lock_bh(&typemap->lock); if (unlikely(typemap->map[type->proto] != type)) err = -ENOENT; else typemap->map[type->proto] = NULL; - write_unlock(&typemap->lock); + write_unlock_bh(&typemap->lock); xfrm_policy_put_afinfo(afinfo); return err; } -- 2.20.1