> On Thu, 2005-03-17 at 00:30 -0500, Gopu Bhaskar wrote: > > Is it OK to sleep when interrupts are disabled ? > > The following is the implementation of interruptible_sleep_on in 2.6.10 > > Here we see that interrupts are disabled before schedule is called and > > enabled back only when the control comes back. I wanted to know > > the reason for doing this. And also whether sleeping with > > interrupts disabled > > has any negetive impact. > > > you should never use any of these functions. THey're there for legacy > reasons but they are known broken and severely deprecated. > Sorry for persisting on this, even though you said that this function is broken. I was just curious why the call to schedule is made with interrupts disabled. AFAIK schedule is called from time to time by utilizing the timer interrupt(update_process_times). If the timer interrupt itself doesnt come then how can the task be scheduled back ? -- ___________________________________________________________ Sign-up for Ads Free at Mail.com http://promo.mail.com/adsfreejump.htm -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
