Re: [PATCH v12 21/31] mm: Introduce find_vma_rcu()

From: Davidlohr Bueso
Date: Tue Apr 23 2019 - 14:13:34 EST

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On Tue, 23 Apr 2019, Peter Zijlstra wrote:

Also; the initial motivation was prefaulting large VMAs and the
contention on mmap was killing things; but similarly, the contention on
the refcount (I did try that) killed things just the same.

Right, this is just like what can happen with per-vma locking.

Thanks,
Davidlohr

Next message: Nicolai Stange: "Re: [RFC PATCH 1/1] x86/ftrace: make ftrace_int3_handler() not to skip fops invocation"
Previous message: Kees Cook: "[PATCH] binfmt_elf: Update READ_IMPLIES_EXEC logic for modern CPUs"
In reply to: Peter Zijlstra: "Re: [PATCH v12 21/31] mm: Introduce find_vma_rcu()"
Next in thread: Laurent Dufour: "[PATCH v12 09/31] mm: VMA sequence count"
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