ming fu wrote:
Hi,
With splnet() became a no-op in sys/systm.h
static __inline intrmask_t splnet(void) { return 0; }
What should I use to replace the splnet?
I have a module receiving input from both ip_input() and a device that
userland can write to. I guess I was cover from the ip_input() as it
should have the proper lock. However, I am on my own to figure out what
to replace the splnet() when receive from the device from the userland.
It uses splnet() in FreeBSD 4.x.
spl's lock execution threads. 5.x and later systems mostly lock data
structures using mtx's (there are a very few exceptions). Thus there
isn't necessarily a direct replacement, you usually need to rethink your
locking/synchronization strategy.
Sam
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