Messages in this thread |  | | From | Andreas Dilger <> | Date | Thu, 20 Sep 2001 21:12:21 -0600 | Subject | Re: XFS to main kernel source |
| |
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/
|  |