Date: Wed, 13 Mar 2013 15:02:28 +0400 From: Lev Serebryakov <lev@FreeBSD.org> To: Konstantin Belousov <kostikbel@gmail.com> Cc: arch@freebsd.org Subject: Re: Unmapped buffers: to be merged in several days Message-ID: <14310571813.20130313150228@serebryakov.spb.ru> In-Reply-To: <20130311211158.GE3794@kib.kiev.ua> References: <20130311091852.GR3794@kib.kiev.ua> <86k3pe1cl3.fsf@ds4.des.no> <20130311182454.GX3794@kib.kiev.ua> <329178079.20130312010425@serebryakov.spb.ru> <20130311211158.GE3794@kib.kiev.ua>
next in thread | previous in thread | raw e-mail | index | archive | help
Hello, Konstantin. You wrote 12 =CD=C1=D2=D4=C1 2013 =C7., 1:11:58: >> Will GEOM class, which needs to touch data (like raid3 or my off-tree >> raid5), benefit from conversion, compare to generic mechanism, >> provided for not-converted by your patch? KB> First, what do you mean by 'benefit'. Answer would obviously depend KB> on the criteria. One more thought: it seems, that raid3/raid5 software implementations could benefit on reading when strict checks are disabled. Is it possible to map downstream BIOs, but use upstream ones unmapped? --=20 // Black Lion AKA Lev Serebryakov <lev@FreeBSD.org>
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?14310571813.20130313150228>