Thread (80 messages) 80 messages, 9 authors, 26d ago

Re: [PATCH v2 0/5] mm: reduce mmap_lock contention and improve page fault performance

From: Matthew Wilcox <willy@infradead.org>
Date: 2026-05-01 16:06:30
Also in: linux-arm-kernel, linux-mm, linux-riscv, linux-s390, lkml, loongarch

On Fri, May 01, 2026 at 04:52:12PM +0100, Lorenzo Stoakes wrote:
After a brief eyeball I share Matthew's assessment, I really don't like this
series, it's piling on complexity for what seem like niche cases.
I don't think they're niche cases ... I think it's a real problem.
While our current code performs better for this workload than the
pre-vma-lock code did, it doesn't perform as well as it could.
We already have enough weirdness in fault code honestly.

Let's maybe discuss at LSF if you're attending?
Not only is he attending, there's a topic scheduled (currently 10:30 on
Wednesday).
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