From mboxrd@z Thu Jan 1 00:00:00 1970 From: Chris Mason Subject: Re: the idea for improving the performance of b-tree search Date: Wed, 13 Oct 2010 11:45:45 -0400 Message-ID: <20101013154545.GW22691@think> References: <4CB57548.7000304@cn.fujitsu.com> <20101013112445.GP22691@think> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Cc: Linux Btrfs To: David Nicol Return-path: In-Reply-To: List-ID: On Wed, Oct 13, 2010 at 10:22:30AM -0500, David Nicol wrote: > On Wed, Oct 13, 2010 at 6:24 AM, Chris Mason = wrote: >=20 > > 3) Do delayed inode deletion. =A0See above, but change the word ins= ert > > with delete ;) >=20 > And the reserved-for-the-future-but-not-used-yet flags field in the > ioctl#21 control structure gets a use: bits to indicate for the > completion of which of the potential delayed things the caller is > waiting. This is similar to the delayed allocation we already do for file data extents. It is supposed to be transparent to userland, and just a way to more efficiently poke the on disk structures. -chris -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" = in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html