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Message-Id: <1314021094-15453-1-git-send-email-mbroz@redhat.com>
Date: Mon, 22 Aug 2011 15:51:34 +0200
From: Milan Broz <mbroz@...hat.com>
To: linux-kernel@...r.kernel.org
Cc: dm-devel@...hat.com, kay.sievers@...y.org, ebiederm@...ssion.com,
greg@...ah.com, Milan Broz <mbroz@...hat.com>
Subject: [PATCH] kobj_uevent: Ignore if some listeners cannot handle message
kobject_uevent() uses a multicast socket and should ignore
if one of listeners cannot handle messages or nobody is
listening at all.
Easily reproducible when a process in system is cloned
with CLONE_NEWNET flag.
(See also http://article.gmane.org/gmane.linux.kernel.device-mapper.dm-crypt/5256)
Signed-off-by: Milan Broz <mbroz@...hat.com>
---
lib/kobject_uevent.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/lib/kobject_uevent.c b/lib/kobject_uevent.c
index 70af0a7..ad72a03 100644
--- a/lib/kobject_uevent.c
+++ b/lib/kobject_uevent.c
@@ -282,7 +282,7 @@ int kobject_uevent_env(struct kobject *kobj, enum kobject_action action,
kobj_bcast_filter,
kobj);
/* ENOBUFS should be handled in userspace */
- if (retval == -ENOBUFS)
+ if (retval == -ENOBUFS || retval == -ESRCH)
retval = 0;
} else
retval = -ENOMEM;
--
1.7.6
--
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