On Wed, 19 Jan 2005 19:02:52 -0500
Jeff Garzik [off-list ref] wrote:

David S. Miller wrote:

quoted

Usually we strive for BH disabling locks in order to decrease the
amount of hard IRQ disabling time in the kernel.  But here, as soon
as we call into ->hard_start_xmit(), the driver typically turns hard
IRQs off anyways.

[...]

quoted

Also, changing dev->xmit_lock to be IRQ disabling is not %100 trivial.

Agreed on both counts...

But in the end it would be safer than the current LLTX usage in drivers
which seems like it opening up problems.


-- 
Stephen Hemminger	[off-list ref]