Re: [PATCH] copy: adjust fiemap handling of sparse files

[Mike Frysinger]

On Thursday, March 17, 2011 05:32:33 Pádraig Brady wrote:
> This is the kind of patch appropriate for a distro,
> as they may or may not have a fix backported to their kernel.

Gentoo, being a source distribution, has no kernel requirement.  people are 
free to run on pretty much anything.  we dont have the luxury of saying 
"upgrade your kernel package and reboot".  especially since we also support 
running Gentoo inside of other distros (often times as non-root user) where 
people dont have the ability at all to upgrade.

> I presume you're referring to coreutils bug 8001.
> I didn't realise ext4 was also affected.
> Is this specific to the compress flag?
> What was the specific fix to btrfs &/or ext4 in 2.6.38?

this is the ext4-specific issue i'm avoiding:
http://www.spinics.net/lists/linux-ext4/msg23430.html

> Also note the make_holes heuristic variable is no
> longer used in extent_copy due to this patch which
> came after the 8.10
> http://git.sv.gnu.org/gitweb/?p=coreutils.git;a=commitdiff;h=275c831a

i'll worry about it once 8.11 is released ;)
-mike

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