From: David Howells <dhowells@redhat.com>
To: David Woodhouse <dwmw2@infradead.org>
Cc: dhowells@redhat.com, Chris Mason <chris.mason@oracle.com>,
balajirrao@gmail.com, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] BTRFS: Transpose parent_objectid and parent_gen in struct btrfs_fid
Date: Wed, 18 Mar 2009 17:38:35 +0000 [thread overview]
Message-ID: <30514.1237397915@redhat.com> (raw)
In-Reply-To: <1237396909.27829.102.camel@macbook.infradead.org>
David Woodhouse <dwmw2@infradead.org> wrote:
> But this struct is packed anyway -- we're not changing much on the wire;
> it's just a case of how efficient it is to load that single uint64_t
> from an unaligned location. Is that _really_ something we're ever going
> to notice?
If the CPU doing the load/store throws a misalignment exception or just
ignores the instruction because it's misaligned, it might make for interesting
debugging.
David
next prev parent reply other threads:[~2009-03-18 17:39 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-03-18 16:16 [PATCH] BTRFS: Transpose parent_objectid and parent_gen in struct btrfs_fid David Howells
2009-03-18 17:00 ` Chris Mason
2009-03-18 17:05 ` David Howells
2009-03-18 17:21 ` David Woodhouse
2009-03-18 17:38 ` David Howells [this message]
2009-03-18 17:46 ` David Woodhouse
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=30514.1237397915@redhat.com \
--to=dhowells@redhat.com \
--cc=balajirrao@gmail.com \
--cc=chris.mason@oracle.com \
--cc=dwmw2@infradead.org \
--cc=linux-kernel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.