1 files changed, 25 insertions, 0 deletions

diff --git a/drivers/pci/Kconfig b/drivers/pci/Kconfig
index 4d762fc4878c..c27e782e6df9 100644
--- a/drivers/pci/Kconfig
+++ b/drivers/pci/Kconfig
@@ -17,6 +17,31 @@ config PCI_MSI
 
            If you don't know what to do here, say N.
 
+config PCI_MULTITHREAD_PROBE
+        bool "PCI Multi-threaded probe (EXPERIMENTAL)"
+        depends on PCI && EXPERIMENTAL
+        help
+          Say Y here if you want the PCI core to spawn a new thread for
+          every PCI device that is probed.  This can cause a huge
+          speedup in boot times on multiprocessor machines, and even a
+          smaller speedup on single processor machines.
+
+          But it can also cause lots of bad things to happen.  A number
+          of PCI drivers can not properly handle running in this way,
+          some will just not work properly at all, while others might
+          decide to blow up power supplies with a huge load all at once,
+          so use this option at your own risk.
+
+          It is very unwise to use this option if you are not using a
+          boot process that can handle devices being created in any
+          order.  A program that can create persistant block and network
+          device names (like udev) is a good idea if you wish to use
+          this option.
+
+          Again, use this option at your own risk, you have been warned!
+
+          When in doubt, say N.
+
 config PCI_DEBUG
         bool "PCI Debugging"
         depends on PCI && DEBUG_KERNEL