| Date | Fri, 17 Sep 2010 11:21:19 -0700 (PDT) | Subject | Re: [PATCH 03/10] jump label v11: base patch | From | David Miller <> |
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From: Jason Baron <jbaron@redhat.com> Date: Fri, 17 Sep 2010 11:09:00 -0400
> base patch to implement 'jump labeling'. Based on a new 'asm goto' inline > assembly gcc mechanism, we can now branch to labels from an 'asm goto' > statment. This allows us to create a 'no-op' fastpath, which can subsequently > be patched with a jump to the slowpath code. This is useful for code which > might be rarely used, but which we'd like to be able to call, if needed. > Tracepoints are the current usecase that these are being implemented for. > > Signed-off-by: Jason Baron <jbaron@redhat.com>
Acked-by: David S. Miller <davem@davemloft.net>
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