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SubjectRe: [PATCH v2 1/3] x86/ldt: Make modify_ldt synchronous
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On Tue, Jul 21, 2015 at 3:59 PM, Andy Lutomirski <luto@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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