On Tue, Jul 21, 2015 at 3:59 PM, Andy Lutomirski <l...@kernel.org> wrote:
> modify_ldt has questionable locking and does not synchronize
> threads.  Improve it: redesign the locking and synchronize all
> threads' LDTs using an IPI on all modifications.

What does this fix?  I can see sending an IPI if the LDT is
reallocated, but on every update seems unnecessary.

--
Brian Gerst
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