Re: [PATCH] allow context attribute on variables

[Johannes Berg <johannes@sipsolutions.net>]

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> I like the idea of matching the existing attributes as closely as
> possible.  However, RCU provides a use case for distinguishing readers
> and writers: you might have a variable that you can read if you hold
> the RCU reader "lock", but you can only write if you hold a spinlock.

Oh good point. What way would you prefer? I can add another parameter to
the attribute, as in __attribute__((context(ctx,in,out,[read|write])))
(readwrite is implied), but that adds another parsing ambiguity. I have
just sent you another patch (was offline for a few days) that probably
won't apply without this, I'll fix this one and then do the other ones
on top.

johannes

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