Re: CryptoAPI: schedual while atomic

[Jean-Luc Cooke]

On Mon, Aug 30, 2004 at 10:42:11AM -0400, James Morris wrote:
> Where is the code which caused this?  The transforms are safe to use (but
> not allocate) in process and softirq contexts.

In add_entropy_words of random.c my experimental code is calling
crypto_digest_update().  In update() it calles crypto_yield.
add_entropy_words() is being call ed directly from a keyboard_interrupt.  I
was hoping to tidy up the code a bit by not using batch_entropy_stores... but
I guess that's unavoidable then?

Last question:
 Would spin_lock_irqsave() spin_unlock_irqrestore() still needed to surround
 crypto_digest_update() calls if they're going to be scattered/gathered
 later?

Thanks for your time.

JLC
-
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/