On Sep 20, 2001 16:31 -0500, Steve Lord wrote:
> XFS quotas are transactional, when space is added to a file the quota is
> adjusted in the same transaction. It is fairly hard to do this without your
> own quota code.
Actually not. The quotas in ext3 are transactional as well. It's just
that the "ext3" journal layer allows nested transactions, so it is possible
to start a write transaction, call into the journal code which calls back
into the ext3 write code to start a nested transaction on the journal file
(i.e. it is in the same transaction as the initial write), and then the
initial write completes.
Cheers, Andreas
-- Andreas Dilger \ "If a man ate a pound of pasta and a pound of antipasto, \ would they cancel out, leaving him still hungry?" http://www-mddsp.enel.ucalgary.ca/People/adilger/ -- Dogbert- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Sun Sep 23 2001 - 21:00:41 EST