Messages in this thread |  | | Date | Sat, 15 Mar 2008 02:34:03 -0400 | From | Christoph Hellwig <> | Subject | Re: [PATCH 3/6] NLM: Initialize completion variable in lockd_up |
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On Fri, Mar 14, 2008 at 10:44:31PM -0500, Mike Snitzer wrote: > On Sun, Jan 13, 2008 at 1:17 PM, Christoph Hellwig <hch@infradead.org> wrote: > > Btw, lockd() takes BKL just after starting up and only implicitly drops > > it when blocking. This seems very dangerous to me and badly wants > > updating to some real locking scheme.. > > Can you elaborate on what is meant by lockd "blocking"? Blocking in > svc_recv() or during a SETLKW or ???
Blocking in kernel context means sleeping aka scheduling away. So in the sentence above that means BKL is dropped once lockd sleeps on a syncronization primitive the first time.
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