On Mon, 10 Jan 2022 21:04:39 +0000,
Jing Zhang <[email protected]> wrote:
>
> To reduce the contentions caused by MMU lock, some MMU operations can
> be performed under read lock.
> One improvement is to add a fast path for permission relaxation during
> dirty logging under the read lock.
This commit message really doesn't say what this patch does
(converting our MMU spinlock to a rwlock, and replacing all instances
of the lock being acquired with a write lock acquisition). Crucially,
it only mention the read lock which appears *nowhere* in this patch.
Thanks,
M.
--
Without deviation from the norm, progress is not possible.
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