From: Ioan Nicu <ioan.nicu.ext@nokia.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] ext4 and caching
Date: Sat, 19 Mar 2016 16:42:27 +0100 [thread overview]
Message-ID: <20160319154227.GB4983@localhost.localdomain> (raw)
In-Reply-To: <56E9A92F.5000205@nelint.com>
Hi Eric,
On Wed, Mar 16, 2016 at 11:42:55AM -0700, EXT Eric Nelson wrote:
> Hi all,
>
> I've been seeing the same sort of issues repoted by Ionut
> and as addressed by this patch:
> http://lists.denx.de/pipermail/u-boot/2014-January/171459.html
>
> That patch was added in commit fc0fc50 and reverted in commit 715b56f.
>
> It no longer applies cleanly, and when I tried to resurrect it,
> I saw errors traversing directories and perhaps something went
> wrong with my merge.
>
> Ionut, do you have a current version of this patch?
>
We reverted that patch because it was breaking ext4 write support. I initially
developed the patch on top of an older u-boot which didn't have write supoort
at all.
I have tried to refactor my patch to work with both read/write, but I gave up
when I saw that the ext4 write code relied on the old behavior of
read_allocated_block/ext4fs_get_extent_block. I could have worked around that,
but then the whole thing would have looked like hack, so I didn't like it ...
If you are interested in a current version of this patch, I could try to
revive it. But it has the limitation I mentioned above, so I guess you could
use it just for some ext4 read performance measurement test.
Regards,
Ioan
next prev parent reply other threads:[~2016-03-19 15:42 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-16 18:42 [U-Boot] ext4 and caching Eric Nelson
2016-03-16 21:40 ` [U-Boot] [RFC PATCH 0/2] simple cache layer for block devices Eric Nelson
2016-03-16 21:40 ` [U-Boot] [RFC PATCH 1/2] add block device cache Eric Nelson
2016-03-17 21:16 ` Stephen Warren
2016-03-17 21:33 ` Eric Nelson
2016-03-17 21:41 ` Stephen Warren
2016-03-20 22:13 ` Tom Rini
2016-03-20 22:51 ` Eric Nelson
2016-03-16 21:40 ` [U-Boot] [RFC PATCH 2/2] mmc: add support for " Eric Nelson
2016-03-17 21:23 ` Stephen Warren
2016-03-20 19:35 ` Eric Nelson
2016-03-20 22:13 ` Tom Rini
2016-03-20 22:54 ` Eric Nelson
2016-03-21 18:31 ` Eric Nelson
2016-03-26 0:11 ` Eric Nelson
2016-04-09 17:55 ` Simon Glass
2016-04-10 14:31 ` Eric Nelson
2016-03-21 14:27 ` Eric Nelson
2016-03-19 15:42 ` Ioan Nicu [this message]
2016-03-20 15:02 ` [U-Boot] ext4 and caching Eric Nelson
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