Re: [PATCH 05/11] XFS: Fix lock ASSERT on UP

From: Andi Kleen
Date: Mon Mar 19 2012 - 22:28:17 EST


> So this means we only ever check that the spinlock is held when
> lockdep is turned on instead of whenever CONFIG_XFS_DEBUG is set?

You should regularly test with lockdep anyways. If you don't you clearly
have a testing gap. lockdep is likely to find many more locking bugs
than any of your very sparse manual annotations.

> That means it will rarely get checked during development instead of
> all the time. That's not an improvement IMO....

It's an improvement that an !CONFIG_SMP && CONFIG_XFS_DEBUG kernel
will not blow up anymore.

-Andi
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