Re: [PATCH 2/5] lockdep: check that no locks held at freeze time

From: Oleg Nesterov
Date: Sat Feb 16 2013 - 12:07:32 EST

Well, this is almost cosmetics, and I am not maintaner, but...

On 02/16, Mandeep Singh Baines wrote:
> static inline bool try_to_freeze(void)
> {
> + if (current->flags & PF_NOFREEZE)
> + return false;
> + debug_check_no_locks_held(current, "lock held while trying to freeze");

I think this should be

if (!(current->flags & PF_NOFREEZE))

without "return". This way we avoid the unnecessary PF_NOFREEZE check
if !CONFIG_LOCKDEP. And perhaps more importantly, this way it is clear
that we check PF_NOFREEZE for debugging only and do not change the code

But I leave this to Rafael/Tejun.

And again, unless I missed something, this makes 1/5 unnecessary.


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