linux-ext4 - Re: [PATCH 31/47] libext2fs/e2fsck: provide routines to read-ahead metadata

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Message-ID: <20141215173628.GB21646@thunk.org>
Date:	Mon, 15 Dec 2014 12:36:28 -0500
From:	Theodore Ts'o <tytso@....edu>
To:	"Darrick J. Wong" <darrick.wong@...cle.com>
Cc:	linux-ext4@...r.kernel.org
Subject: Re: [PATCH 31/47] libext2fs/e2fsck: provide routines to read-ahead
 metadata

On Fri, Nov 07, 2014 at 01:54:07PM -0800, Darrick J. Wong wrote:
> 
> v2: Add an API to create a dblist with a given number of list elements
> pre-allocated.  This enables us to save ~2ms per call to
> e2fsck_readahead() (assuming a 2MB RA buffer) by not having to
> repeatedly call ext2_resize_mem as we add blocks to the list.

I don't see the API to create a dblist with a specified number of list
elements?  It should be pretty trivial, given make_dblist() but I
don't see it in this patch?

						- Ted
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