On Tue, Aug 23, 2011 at 5:59 PM, Ohad Ben-Cohen <[email protected]> wrote: > On Tue, Aug 23, 2011 at 5:07 PM, Roedel, Joerg <[email protected]> wrote: >> Can this be easily converted to a spin_lock? > > Sure, thanks for reviewing.
Taking a second look, I don't think it's necessary - the mutex isn't used to protect the page table. The page table is protected by a spin lock, so map/unmap operations can be called from an atomic context. The mutex is only part of the attach/deattach operations, which are already used today in process context, so I guess it's safe. -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
