Re: [PATCH] Re: Nested VLAN causes recursive locking error
From: Jarek Poplawski <hidden>
Date: 2007-12-31 21:57:32
On Mon, Dec 31, 2007 at 06:45:55PM +0100, Jarek Poplawski wrote:
On Mon, Dec 31, 2007 at 04:04:17PM +0100, Patrick McHardy wrote:
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quoted
That will increment the subclass globally, but it should actually just use real_dev->subclass + 1. [...]
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to two subclasses - any nested vlan gets second. Otherwise, it seems there is some place needed to store these subclasses or use some unofficial checks on lockdep's structures?
...It seems there is simply needed additional macro in lockdep's API to retrieve a subclass number from a lock! It would be at least 'strange' to have to save this doubly. Jarek P.