Yes you can, infact network subsystem softirq are reactive so it can run again.
however, reactivated softirq are not immediately process but until kernel handles the pending softirqs because it might introduce latency in user-space.
And for better performance, when pending BH grows excessively then family of kernel threads are wakes up to handle the load.
On 27-Sep-2013, at 4:44 PM, Vishwas Srivastava (vishsriv) <vishsriv@cisco.com> wrote:
Hi Group,
I am a bit unclear if, I could schedule another BH while I am already running in a BH ?
For example, if I am running in a SOFT IRQ, can I schedule a tasklet from there ??