From: David Hildenbrand <david@redhat.com>
To: qemu-devel@nongnu.org, Paolo Bonzini <pbonzini@redhat.com>
Cc: "Pankaj Gupta" <pankaj.gupta.linux@gmail.com>,
"Daniel P . Berrangé" <berrange@redhat.com>,
"Eduardo Habkost" <ehabkost@redhat.com>,
"Michael S. Tsirkin" <mst@redhat.com>,
"Dr . David Alan Gilbert" <dgilbert@redhat.com>,
"Igor Mammedov" <imammedo@redhat.com>
Subject: Re: [PATCH v4 0/7] util/oslib-posix: Support MADV_POPULATE_WRITE for os_mem_prealloc()
Date: Mon, 11 Oct 2021 18:46:16 +0200 [thread overview]
Message-ID: <b51f5845-4779-1bf3-4444-93085a61c62e@redhat.com> (raw)
In-Reply-To: <20211004120208.7409-1-david@redhat.com>
On 04.10.21 14:02, David Hildenbrand wrote:
> #1 is a preparation for improved error reporting, #2 adds support for
> MADV_POPULATE_WRITE, #3 cleans up the code to avoid global variables and
> prepare for concurrency, #4 and #5 optimize thread handling, #6 makes
> os_mem_prealloc() safe to be called from multiple threads concurrently and
> #7 makes the SIGBUS handler coexist cleanly with the MCE SIGBUS handler
> under Linux.
>
> Details regarding MADV_POPULATE_WRITE can be found in introducing upstream
> Linux commits 4ca9b3859dac ("mm/madvise: introduce
> MADV_POPULATE_(READ|WRITE) to prefault page tables") and eb2faa513c24
> ("mm/madvise: report SIGBUS as -EFAULT for MADV_POPULATE_(READ|WRITE)"),
> and in the man page update [1].
Paolo, are you planning on taking this via your tree (POSIX)? Thanks!
--
Thanks,
David / dhildenb
prev parent reply other threads:[~2021-10-11 16:48 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-04 12:02 [PATCH v4 0/7] util/oslib-posix: Support MADV_POPULATE_WRITE for os_mem_prealloc() David Hildenbrand
2021-10-04 12:02 ` [PATCH v4 1/7] util/oslib-posix: Let touch_all_pages() return an error David Hildenbrand
2021-10-04 12:02 ` [PATCH v4 2/7] util/oslib-posix: Support MADV_POPULATE_WRITE for os_mem_prealloc() David Hildenbrand
2021-10-04 12:02 ` [PATCH v4 3/7] util/oslib-posix: Introduce and use MemsetContext for touch_all_pages() David Hildenbrand
2021-10-07 10:05 ` Dr. David Alan Gilbert
2021-10-07 10:12 ` David Hildenbrand
2021-10-04 12:02 ` [PATCH v4 4/7] util/oslib-posix: Don't create too many threads with small memory or little pages David Hildenbrand
2021-10-04 12:02 ` [PATCH v4 5/7] util/oslib-posix: Avoid creating a single thread with MADV_POPULATE_WRITE David Hildenbrand
2021-10-04 12:02 ` [PATCH v4 6/7] util/oslib-posix: Support concurrent os_mem_prealloc() invocation David Hildenbrand
2021-10-04 12:02 ` [PATCH v4 7/7] util/oslib-posix: Forward SIGBUS to MCE handler under Linux David Hildenbrand
2021-10-11 16:46 ` David Hildenbrand [this message]
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