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    SubjectRe: [patch 1/6] mmu_notifier: Core code
    On Wed, 30 Jan 2008, Jack Steiner wrote:

    > Moving to a different lock solves the problem.

    Well it gets us back to the issue why we removed the lock. As Robin said
    before: If its global then we can have a huge number of tasks contending
    for the lock on startup of a process with a large number of ranks. The
    reason to go to mmap_sem was that it was placed in the mm_struct and so we
    would just have a couple of contentions per mm_struct.

    I'll be looking for some other way to do this.



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