Re: [RFC][PATCH] extable: Make sure all archs define _sdata

[Steven Rostedt]

On Fri, 2011-05-20 at 07:28 -0700, Richard Henderson wrote:

> Although I suppose if we're supposedly standardizing on _sdata,
> the two uses of _data in arch/alpha/mm/ could be transitioned.
> 

If we start getting more uses of _sdata, then perhaps this would be a
good idea.

Currently I only need it to know if a pointer passed in to one of my
functions can be freed or not. If the pointer is pointing to a struct in
the core kernel data, it is safe from being freed. Anything else will
need the extra work to keep it safe (rcu logic and such) and takes a
path with a bit more overhead.

Thanks!

-- Steve


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