Hi, Best documentation: http://www.kernelnewbies.org/documents/kdoc/kernel-locking/lklockingguide.html On 4/25/05, Thomas Petazzoni <thomas.petazzoni@xxxxxxxx> wrote: > Hello, > > In the implementation of mempools (in mm/mempool.c in 2.6 kernels, for > example at http://lxr.linux.no/source/mm/mempool.c), interrupts are > disabled when accessing the mempool_t structure using the > spin_lock_irqsave() and irq_unlock_irqrestore() functions. > > Why is it necessary to disable interrupts ? Isn't it enough to use > spin_lock() and spin_unlock() ? > > Thanks, > > Thomas > -- > Thomas Petazzoni > thomas.petazzoni@xxxxxxxx > > -- > Kernelnewbies: Help each other learn about the Linux kernel. > Archive: http://mail.nl.linux.org/kernelnewbies/ > FAQ: http://kernelnewbies.org/faq/ > > -- Regards, Devesh Agrawal -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
