> There is an interrupt enable overhead of 48 cycles that would be good to > be able to eliminate (Kernel code usually moves counter increments into > a neighboring interrupt disable section so that __ function can be used).
Replace the push flags ; popf with test $IFMASK,flags ; jz 1f; sti ; 1: That will likely make it much faster (but also bigger) The only problem is that there might be some code who relies on restore_flags() restoring other flags that IF, but at least for interrupts and local_irq_save/restore it should be fine to change. -Andi - 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/
