Like to put 2 more questions: 1. spin_lock_irqsave disables interrupt on local processor or on all the processors? 2. Is that ever required to disable interrupts on all the processors? -----Original Message----- From: kernelnewbies-bounce@xxxxxxxxxxxx [mailto:kernelnewbies-bounce@xxxxxxxxxxxx] On Behalf Of Momchil Velikov Sent: Monday, April 25, 2005 11:44 AM To: Thomas Petazzoni Cc: K.R. Foley; kernelnewbies Subject: Re: spin_lock or spin_lock_irqsave ? Thomas Petazzoni wrote: > In which cases is it necessary to be protected only against other > processors, and not against interrupt on the current processor ? When no interrupt handler ever touches the lock. -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/ -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
