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SubjectRe: [PATCH] plist: add mutex to the blessed lock type for plists
On Wed, 2011-06-29 at 13:13 -0700, Andi Kleen wrote:
> Dima Zavin <> writes:
> > Currently, plist debugging "enforces" that the plist is locked
> > with either a raw_spinlock or a spinlock. The plist data structure
> > is useful in other places, where spinlocks are unnecessary.
> >
> > Extend the plist initializers and debug checks to allow the plist
> > to be protected by a mutex
> Seems really ugly and clearly not a godo path.
> It's a bit like adding a 11th argument to a function which already has
> 10.
> Perhaps better move out the locking completely to wrappers and remove
> the knowledge from the core plist code.

I don't think wrappers will help any. You still need to add some hook to
let the debugging know what type of lock is protecting a plist. It is
also nice annotation to see it. The code isn't that bad, and it is
compiled out when DEBUG_PI_LIST is not set.

-- Steve

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