Date: Thu, 24 Nov 2011 23:29:33 +0400 From: Lev Serebryakov <lev@FreeBSD.org> To: Ivan Voras <ivoras@freebsd.org> Cc: freebsd-fs@freebsd.org Subject: Re: Does UFS2 send BIO_FLUSH to GEOM when update metadata (with softupdates)? Message-ID: <1359447341.20111124232933@serebryakov.spb.ru> In-Reply-To: <jals5e$96f$1@dough.gmane.org> References: <1957615267.20111123230026@serebryakov.spb.ru> <20111123194444.GE50300@deviant.kiev.zoral.com.ua> <jals5e$96f$1@dough.gmane.org>
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Hello, Ivan. You wrote 24 =ED=EE=FF=E1=F0=FF 2011 =E3., 20:42:15: > http://people.freebsd.org/~ivoras/diffs/fsync_flush.patch Your soulution could be merged with my one -- you've added special flag at BUF level, which could be good idea. But, on other hand, IMHO any non-ASYNC BUF should be converted to SYNC BIO. Now we break semantic of B_ASYNC flag -- don't guarantee sync operation on GEOM elvel when buffer request one (by not-setting B_ASYNC). --=20 // Black Lion AKA Lev Serebryakov <lev@FreeBSD.org>
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