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xfrm: don't call xfrm_policy_cache_flush under xfrm_state_lock 

I might be wrong but it doesn't look like xfrm_state_lock is required
for xfrm_policy_cache_flush and calling it under this lock triggers both
"sleeping function called from invalid context" and "possible circular
locking dependency detected" warnings on flush.

Fixes: ec30d78c14 xfrm: add xdst pcpu cache
Signed-off-by: Artem Savkov <asavkov@redhat.com>
Acked-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
This commit is contained in:
Artem Savkov 2017-09-27 14:25:37 +02:00 committed by Steffen Klassert
parent 23e9fcfef1
commit dd269db849
1 changed files with 2 additions and 2 deletions
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4
net/xfrm/xfrm_state.c
View File

@ -732,12 +732,12 @@ restart:
}
}
}
out:
spin_unlock_bh(&net->xfrm.xfrm_state_lock);
if (cnt) {
err = 0;
xfrm_policy_cache_flush();
}
out:
spin_unlock_bh(&net->xfrm.xfrm_state_lock);
return err;
}
EXPORT_SYMBOL(xfrm_state_flush);