Messages in this thread | | | From | (Alan Cox) | Subject | Re: Quota lockups | Date | Tue, 13 Oct 1998 01:48:56 +0100 (BST) |
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> I posted some time ago the sure way to lock up the quota code: have an > empty 'quota.user' file. Then do something that causes somebody to > allocate space on the device. The file system gets locked once to make the > quota change, then again because the first block of the quota file needs to > be allocated, which requires another quota modification. *Lock*.
Quota files arent supposed to have holes in them
> The most straightforward fix would be to force the existence of the first > block of the quota file before allowing quotas to be turned on. But this > has the look of the sort of band-aid fix that Linus doesn't like, for good > reason...
Not quotaing a quota block allocation would be the logical answer but its not trivial and you don't want to propogate tons of "is this a quota block" flags around
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