Date: Tue, 31 Aug 2010 07:09:05 -0700 From: Matthew Jacob <mj@feral.com> To: freebsd-fs@freebsd.org Subject: Re: fsync(2) and on-disk write-back cache Message-ID: <4C7D0D01.7000009@feral.com> In-Reply-To: <20100831113851.6d449628@ernst.jennejohn.org> References: <20100830225841.GA9363@cons.org> <20100831113851.6d449628@ernst.jennejohn.org>
next in thread | previous in thread | raw e-mail | index | archive | help
On FreeBSD, BIO_FLUSH is used to communicate between the filesystem./buffer cache's desire to flush out and the low level cache. > I may be wrong, but it seems to me that the actual cache flush on the > disk is handled at a very low level - in the drivers. > > At least I'm pretty certain that e.g. the ahci code sends flush commands > to the disks. > > -- > Gary Jennejohn > _______________________________________________ > freebsd-fs@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-fs > To unsubscribe, send any mail to "freebsd-fs-unsubscribe@freebsd.org"
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?4C7D0D01.7000009>