Date: Wed, 26 Feb 2020 13:55:50 -0800 From: Gleb Smirnoff <glebius@freebsd.org> To: Ravi Pokala <rpokala@freebsd.org> Cc: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: Re: svn commit: r358317 - head/sys/kern Message-ID: <20200226215550.GO5741@FreeBSD.org> In-Reply-To: <23A820B4-2E13-4E3E-B734-C7950298C286@panasas.com> References: <202002251911.01PJBLDP091875@repo.freebsd.org> <23A820B4-2E13-4E3E-B734-C7950298C286@panasas.com>
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On Tue, Feb 25, 2020 at 12:02:29PM -0800, Ravi Pokala wrote: R> When sendfile_swapin() sweeps through pages in search for a bogus page R> skip first and last pages. This is a micro optimisation. R> R> Yes, but *why* skip the first and last pages? We may have inserted bogus pages in the middle of a request. We never substitute first or last. -- Gleb Smirnoff
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