Re: [RFC PATCH] introduce sys_membarrier(): process-wide memorybarrier (v5)

[Nicholas Miell]

On Wed, 2010-01-13 at 13:24 -0500, Mathieu Desnoyers wrote:
> * Nicholas Miell (nmiell@xxxxxxxxxxx) wrote:
> 
> > The whole point of compat and incompat flags is that it allows new
> > applications to run on old kernels and either work or fail as
> > appropriate, depending on whether the new features they're using must be
> > implemented or can be silently ignored.
> 
> I see. Thanks for the explanation. Then the expedited flag should
> clearly be part of the mandatory flags.
> 
> Can you point me to other system calls that are doing this ?
> 
> Thanks,
> 
> Mathieu

Not off the top of my head, but I did steal the idea from the ext2/3/4
disk format.

-- 
Nicholas Miell <nmiell@xxxxxxxxxxx>

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