Kernel Hacking
 

Hello there,

I am not sure it is the right subgroup to ask/post my question, although in fact this question arose when I was dealing with my wireless testbed.

Does any body know what is the purpose of spin_lock_irqsave() and spin_lock_irqrestore() ?

Thanks in advance for taking your invaluable time to answer my question.

Cheers

Siva

Not sure on that but if you goto http://www.google.com/linux and use the search string spin_lock_irqsave it shows many links to the subject but nothing specfic. Might search through the kernel docs for info as well.

Brian

Moved: This thread is more suitable in Linux Kernel and has been moved accordingly to help your thread/question get the exposure it deserves.

we use these API's in entry & exit of critical sections.
becoz we don't want toget interrupted while being in the critical section.

U can get more info in "Understanding Linux Kernel"(O'reilly) book.