Re: [PATCH 1/4] x86, mm: Trace when an IPI is about to be sent

[Dave Hansen]

On 04/16/2015 03:22 AM, Mel Gorman wrote:
> It is easy to trace when an IPI is received to flush a TLB but harder to
> detect what event sent it. This patch makes it easy to identify the source
> of IPIs being transmitted for TLB flushes on x86.

Looks fine to me.  I think I even thought about adding this but didn't
see an immediate need for it.  I guess this does let you see how many
IPIs are sent vs. received.

Reviewed-by: Dave Hansen <dave.hansen@xxxxxxxxx>
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