Re: [PATCH] Export current_is_keventd() for libphy

[David Howells]

Linus Torvalds <torvalds@xxxxxxxx> wrote:

>  (a) "volatile" on kernel data is basically always a bug, and you should 
>      use locking.

But what about when you're building a lock?  Actually, I suspect correct usage
of asm constraints and memory barriers trumps volatile anyway even there.

David
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/