Specify that movablecore= can use a percent value.

Remove comment about hugetlb pages not being movable per Mike.

Cc: Mike Kravetz <mike.krav...@oracle.com>
Signed-off-by: David Rientjes <rient...@google.com>
---
 .../admin-guide/kernel-parameters.txt         | 22 +++++++++----------
 1 file changed, 11 insertions(+), 11 deletions(-)

diff --git a/Documentation/admin-guide/kernel-parameters.txt 
b/Documentation/admin-guide/kernel-parameters.txt
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -1837,10 +1837,9 @@
 
                        ZONE_MOVABLE is used for the allocation of pages that
                        may be reclaimed or moved by the page migration
-                       subsystem.  This means that HugeTLB pages may not be
-                       allocated from this zone.  Note that allocations like
-                       PTEs-from-HighMem still use the HighMem zone if it
-                       exists, and the Normal zone if it does not.
+                       subsystem.  Note that allocations like PTEs-from-HighMem
+                       still use the HighMem zone if it exists, and the Normal
+                       zone if it does not.
 
                        It is possible to specify the exact amount of memory in
                        the form of "nn[KMGTPE]", a percentage of total system
@@ -2353,13 +2352,14 @@
        mousedev.yres=  [MOUSE] Vertical screen resolution, used for devices
                        reporting absolute coordinates, such as tablets
 
-       movablecore=nn[KMG]     [KNL,X86,IA-64,PPC] This parameter
-                       is similar to kernelcore except it specifies the
-                       amount of memory used for migratable allocations.
-                       If both kernelcore and movablecore is specified,
-                       then kernelcore will be at *least* the specified
-                       value but may be more. If movablecore on its own
-                       is specified, the administrator must be careful
+       movablecore=    [KNL,X86,IA-64,PPC]
+                       Format: nn[KMGTPE] | nn%
+                       This parameter is the complement to kernelcore=, it
+                       specifies the amount of memory used for migratable
+                       allocations.  If both kernelcore and movablecore is
+                       specified, then kernelcore will be at *least* the
+                       specified value but may be more.  If movablecore on its
+                       own is specified, the administrator must be careful
                        that the amount of memory usable for all allocations
                        is not too small.
 
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