On 2013/8/15 2:43, Oleg Nesterov wrote: > On 08/14, Rui Xiang wrote: >> >> On 2013/8/14 13:06, Andy Lutomirski wrote: >>> On Tue, Aug 13, 2013 at 10:04 PM, Rui Xiang <rui.xi...@huawei.com> wrote: >>>> The level of init_user_ns shoule be 1. >>> >>> What's wrong with zero? >>> >> >> No problem. It is just consistent with commit 8742f229b63, IMHO. > > Well, I am fine either way, > >> but the initialization of level should be necessary. > > but it is not necessary. This is just an "arbitrary" limit for now, > 32 non-root namespaces. Perhaps we should count init_user_ns too. > > Hmm. but I just realized that "> 32" in create_user_ns() should be > ">= 32" in this case. > Yes. If we need to count init_user_ns, this filed should be set to 1 in init_user_ns, and "> 32" in create_user_ns() can limit 32 non-root namespaces. And that depends on your design. :)
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