Messages in this thread | | | Date | Thu, 10 Jul 2003 16:15:53 +0100 | From | Christoph Hellwig <> | Subject | Re: RFC: what's in a stable series? |
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On Thu, Jul 10, 2003 at 01:42:00PM +0100, Alan Cox wrote: > On Iau, 2003-07-10 at 13:13, Marcelo Tosatti wrote: > > So Christoph's quota patch does not support vendors "v1" files? > > > > I must be misunderstanding someone. > > There are three species of quota in Linux > > v0 (official old Linux) > v1 (most 2.4 vendor trees) > v2 (the 2.5 format)
Umm, no. You misunderstood.
There's two quota _ondisk_ formats:
v1 old 16bit quota. v2 new 32bit quota.
2.4 previously only supported v1, 2.5 and 2.4.22-pre4 also support v2.
There's three sys_quotactl ABIs
1) original 16 bit one, supported by all kernels <= 2.4 2) first 32bit one, supported by 2.4-ac any many vendor trees, but never in mainline 3) new 32bit one, supported by 2.4.x (x >= 22-pre4) and 2.5
Unfortunately the second one uses the same constants as the old 16bit one but different structures so there is no way to support both in a single kernel.
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