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SubjectRe: 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?" -- Dogbert

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