Andriy Gapon wrote:
on 16/05/2008 19:48 Scott Long said the following:
There is no write support in UDF in FreeBSD. When I wrote the fs code,
packet writing was the only way to do discrete writes, and it's very
hard to make that work with a traditional VM system. Now with DVD+R,
it's probably worth someone's time to look at it (though the append-only
nature of +R means that there are still some nasty VM complications to
deal with). Until that happens, mkisofs can be used to create a static
UDF filesystem.
BTW, Remko has kindly notified me that Reinoud Zandijk has completed his
long work on UDF write support in NetBSD. I think that porting his work
is our best chance to get write support in FreeBSD too.
I think you'll find that implementing VOPs and filling in UDF data
structures will be easy, while interacting with the VM will be many
orders of magnitude harder. Still it should be a fun challenge for
someone to do.
Scott
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