Re: >Re: [RFC] should VM_BUG_ON(cond) really evaluate cond
From: Linus Torvalds <torvalds@linux-foundation.org>
Date: 2011-10-28 12:19:25
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On Fri, Oct 28, 2011 at 5:09 AM, Eric Dumazet [off-list ref] wrote:
What you describe is true for non atomic variables as well, its not part of the atomic_ops documented semantic.
Eric - your "documentation" is so much toilet paper. So don't bother
talkign about "documented semantics". Start talking about SANE
INTERFACES.
What I described is very much true of non-atomics. Nobody doubts that.
THE QUESTION IS WHETHER IT MAKES SENSE FOR ATOMICS, DAMMIT!
And quite frankly, the behavior I described does not seem to make any
sense for atomics.
"Sane interfaces" are important. Insane interfaces lead to bugs.
Linus