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SubjectRe: [patch] tune vmalloc size

* Andrew Morton <akpm@osdl.org> wrote:

> Ingo Molnar <mingo@elte.hu> wrote:
> >
> > + if (c == ' ' && !memcmp(from, "vmalloc=", 8))
> > + __VMALLOC_RESERVE = memparse(from+8, &from);
>
> u o akpm an update to kernel-parameters.txt, please.

here you go:

--- Documentation/kernel-parameters.txt.orig
+++ Documentation/kernel-parameters.txt
@@ -453,6 +453,11 @@ running once the system is up.
hd?= [HW] (E)IDE subsystem
hd?lun= See Documentation/ide.txt.

+ highmem=nn[KMG] [KNL,BOOT] forces the highmem zone to have an exact
+ size of <nn>. This works even on boxes that have no
+ highmem otherwise. This also works to reduce highmem
+ size on bigger boxes.
+
hisax= [HW,ISDN]
See Documentation/isdn/README.HiSax.

@@ -1280,6 +1285,12 @@ running once the system is up.
This is actually a boot loader parameter; the value is
passed to the kernel using a special protocol.

+ 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
+ decrease the size and leave more room for directly
+ mapped kernel RAM.
+
vmhalt= [KNL,S390]

vmpoff= [KNL,S390]
-
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