Messages in this thread |  | | Subject | Re: XFS to main kernel source | Date | Thu, 20 Sep 2001 22:25:20 -0500 | From | Steve Lord <> |
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> 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.
OK, good point, but doing a major rewrite of XFS to use a different transaction mechanism is not really on the cards, plus we have on disk compatibility with the Irix version to consider.
Steve
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