xfstests: test ext4 statfs
Calculating free blocks in ext[234] is surprisingly hard, since
by default we report "bsd" style df which doesn't count filesystem
"overhead" blocks as used.
With a lot of code dedicated to sorting out what to report as
free, things tend to go wrong surprisingly often.
Here's a test to actually try to stop the next regression. ;)
NB: For bsddf, the kernel currently does not count journal blocks
as overhead; it probably should. But the test below looks to have
the result within 1% of perfection, so it still passes even if
the kernel doesn't count the journal against free blocks.
Eric,
This patch has been committed to git://oss.sgi.com/xfs/cmds/xfstests,
master branch, commit 0b2ab695.
Thanks
--Rich
--
To unsubscribe from this list: send the line "unsubscribe linux-ext4" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
