Re: [PATCH] ext3_clear_inode(): avoid kfree(NULL)

On Sat, 2006-06-24 at 09:49 -0700, Jeremy Fitzhardinge wrote:
> Arjan van de Ven wrote:
> > nope none at all, at least not on x86/x86-64.
> > (in fact there is no way to help the prediction on those architectures
> > that actually works)
> >   
> The branch prediction hint prefixes (2e & 3e) don't work?

last I read they are both actively discouraged and ignored by all
"current" processors from both AMD and Intel. (see the optimization
guide PDF that Intel publishes)
Note: this is based on me reading public documentation, not on me
reading Intel internal stuff or asking the relevant chip architects, so
don't take this as a fully authoritative statement.


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• References:
  • Re: [PATCH] ext3_clear_inode(): avoid kfree(NULL)
    • From: Jeff Garzik <[email protected]>
  • Re: [PATCH] ext3_clear_inode(): avoid kfree(NULL)
    • From: Andrew Morton <[email protected]>
  • Re: [PATCH] ext3_clear_inode(): avoid kfree(NULL)
    • From: Arjan van de Ven <[email protected]>
  • Re: [PATCH] ext3_clear_inode(): avoid kfree(NULL)
    • From: Steven Rostedt <[email protected]>
  • Re: [PATCH] ext3_clear_inode(): avoid kfree(NULL)
    • From: Arjan van de Ven <[email protected]>
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    • From: Steven Rostedt <[email protected]>
  • Re: [PATCH] ext3_clear_inode(): avoid kfree(NULL)
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  • Re: [PATCH] ext3_clear_inode(): avoid kfree(NULL)
    • From: Jeremy Fitzhardinge <[email protected]>

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