hugetlb: override default huge page size

[linux-2.6-omap-h63xx.git] / Documentation / kernel-parameters.txt

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index d55fd88fd0a94c0c469c7aecb98debf3cb90523f..30278e9e5211759cb95c5ecdfeca4be4b7413736 100644 (file)
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -783,6 +783,13 @@ and is between 256 and 4096 characters. It is defined in the file
                        CPU supports the "pdpe1gb" cpuinfo flag)
                        Note that 1GB pages can only be allocated at boot time
                        using hugepages= and not freed afterwards.
+       default_hugepagesz=
+                       [same as hugepagesz=] The size of the default
+                       HugeTLB page size. This is the size represented by
+                       the legacy /proc/ hugepages APIs, used for SHM, and
+                       default size when mounting hugetlbfs filesystems.
+                       Defaults to the default architecture's huge page size
+                       if not specified.
 
        i8042.direct    [HW] Put keyboard port into non-translated mode
        i8042.dumbkbd   [HW] Pretend that controller can only read data from