On Tue, Dec 25, 2012 at 09:34:30PM +0800, Patrick Dung wrote: > Hi, > > I would like to know why quota is not enabled in the stock kernel.. > > I remembered that it is not enabled since freebsd 3.5 or freebsd 4 generation. > Now in freebsd 9.0, it still neeed a kernel rebuild. > > I have heard it has performance issue (GIANT lock) about quota.
Enabling quota by default would cause small overhead, like one mutex acquire, for each inode and block alloc/dealloc, even for mount without quotas enabled. Might be, it is reasonable to just enable it now. Unless somebody provide valid objections and I do not forget, I will do it in a week for HEAD.
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