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Message-ID: <4CF9F7AB.8050802@redhat.com> Date: Sat, 04 Dec 2010 10:11:23 +0200 From: Avi Kivity <avi@...hat.com> To: David Sharp <dhsharp@...gle.com> CC: rostedt@...dmis.org, linux-kernel@...r.kernel.org, mrubin@...gle.com, kvm-devel <kvm@...r.kernel.org> Subject: Re: [PATCH 07/15] ftrace: fix event alignment: kvm:kvm_hv_hypercall On 12/04/2010 02:13 AM, David Sharp wrote: > Signed-off-by: David Sharp<dhsharp@...gle.com> > --- > arch/x86/kvm/trace.h | 8 ++++---- > 1 files changed, 4 insertions(+), 4 deletions(-) > > diff --git a/arch/x86/kvm/trace.h b/arch/x86/kvm/trace.h > index a6544b8..ab41fb0 100644 > --- a/arch/x86/kvm/trace.h > +++ b/arch/x86/kvm/trace.h > @@ -62,21 +62,21 @@ TRACE_EVENT(kvm_hv_hypercall, > TP_ARGS(code, fast, rep_cnt, rep_idx, ingpa, outgpa), > > TP_STRUCT__entry( > - __field( __u16, code ) > - __field( bool, fast ) > __field( __u16, rep_cnt ) > __field( __u16, rep_idx ) > __field( __u64, ingpa ) > __field( __u64, outgpa ) > + __field( __u16, code ) > + __field( bool, fast ) > ), > Looks like a pessimisation. Before: 24 bytes After: 32 bytes (on a 64-bit machine, assuming no packing) -- I have a truly marvellous patch that fixes the bug which this signature is too narrow to contain. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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