From: Chris Mason <chris.mason@oracle.com>
To: David Nicol <davidnicol@gmail.com>
Cc: Linux Btrfs <linux-btrfs@vger.kernel.org>
Subject: Re: the idea for improving the performance of b-tree search
Date: Wed, 13 Oct 2010 11:45:45 -0400 [thread overview]
Message-ID: <20101013154545.GW22691@think> (raw)
In-Reply-To: <AANLkTimC=HXPBMxcCL5dx0edN-Z+XzcHpe+G5Bi1hqoX@mail.gmail.com>
On Wed, Oct 13, 2010 at 10:22:30AM -0500, David Nicol wrote:
> On Wed, Oct 13, 2010 at 6:24 AM, Chris Mason <chris.mason@oracle.com>=
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
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next prev parent reply other threads:[~2010-10-13 15:45 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-10-13 9:00 the idea for improving the performance of b-tree search Miao Xie
2010-10-13 11:24 ` Chris Mason
2010-10-13 15:22 ` David Nicol
2010-10-13 15:45 ` Chris Mason [this message]
2010-10-13 20:38 ` David Nicol
2010-10-18 2:41 ` Shaohua Li
2010-10-18 9:36 ` Miao Xie
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