Merge branch 'akpm' (patches from Andrew)

[linux-2.6-microblaze.git] / Documentation / admin-guide / kernel-parameters.txt

diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 47ca5cd..b90fe3b 100644 (file)
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -4851,6 +4851,18 @@
                        This is actually a boot loader parameter; the value is
                        passed to the kernel using a special protocol.
 
+       vm_debug[=options]      [KNL] Available with CONFIG_DEBUG_VM=y.
+                       May slow down system boot speed, especially when
+                       enabled on systems with a large amount of memory.
+                       All options are enabled by default, and this
+                       interface is meant to allow for selectively
+                       enabling or disabling specific virtual memory
+                       debugging features.
+
+                       Available options are:
+                         P     Enable page structure init time poisoning
+                         -     Disable all of the above options
+
        vmalloc=nn[KMG] [KNL,BOOT] Forces the vmalloc area to have an exact
                        size of <nn>. This can be used to increase the
                        minimum size (128MB on x86). It can also be used to