[LTP] [PATCH] zram: extend the zram3 disksize to 40MB

[Cyril Hrubis]

Hi!
> It failed to format btrfs on /dev/zram3 device since the
> disk size is too small (btrfs-progs is v4.4.1).
> 
> The error msg we catched:
> 
> zram01 3 TINFO : make ext3 filesystem on /dev/zram0
> zram01 3 TINFO : make ext4 filesystem on /dev/zram1
> zram01 3 TINFO : make xfs filesystem on /dev/zram2
> zram01 3 TINFO : make btrfs filesystem on /dev/zram3
> '/dev/zram3' is too small to make a usable filesystem
> Minimum size for each btrfs device is 41943040.
> btrfs-progs v4.4.1
> See http://btrfs.wiki.kernel.org for more information.
> zram01 3 TFAIL : failed to make btrfs on /dev/zram3
> zram01 4 TINFO : zram cleanup

I've got the exact same failure with btrfs-progs 4.5.1 just recently,
the fix looks good to me.

And btw it looks like we need to increase the default loop device size
again since btrfs-progs 4.5.1 seems to request at least 136MB for mkfs01
test...

-- 
Cyril Hrubis
chrubis@suse.cz