[systemd-devel] [PATCH 1/2] Partially revert patch 11689d2a which force the NOCOW attribute.

[Lennart Poettering]

On Sun, 12.04.15 20:30, Goffredo Baroncelli (kreijack at libero.it) wrote:

> From: Goffredo Baroncelli <kreijack at inwind.it>
> 
> Partially revert patch 11689d2a, which force the NOCOW attribute for the
> journal files. This patch was introduced to allievate the perfomances
> problem that journald shows on the BTRFS filesystem.
> 
> Because the NOCOW attribute is forced the user can't revert to
> the old behavior. However NOCOW attribute disables the btrfs checksums,
> which prevent BTRFS to rebuild a currupted file in an RAIDx filesystem.
> 
> To continue to set the NOCOW attribute, use the h|H command of
> systemd-tmpfile.

I have now commited a similar patch that replaces the patching of the
attribute for new journal files with a warning if we notice the
journal file is on btrfs and the flag is not set.

I hope this settles the issue!

Thanks!

Lennart

-- 
Lennart Poettering, Red Hat