On Thu, 3 Mar 2005, Andrew Morton wrote: > Christoph Lameter <[EMAIL PROTECTED]> wrote: > > > > On Wed, 2 Mar 2005, Andrew Morton wrote: > > > > > > This is not relevant since it only deals with file pages. > > > > > > OK. And CONFIG_DEBUG_PAGEALLOC? > > > > Its a debug feature that can be fixed if its broken. > > It's broken. > > A fix would be to restore the get_page() if CONFIG_DEBUG_PAGEALLOC. Not > particularly glorious..
Another fix would be to have a global variable "dontunmap" and have the map kernel function not change the pte. But this is also not the cleanest way. The problem with atomic operations is the difficulty of keeping state. The state must essentially all be bound to the atomic value replaced otherwise more extensive locking schemes are needed. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
