The patch titled
Subject: mm-page_alloc-extend-kernelcore-and-movablecore-for-percent-fix
has been added to the -mm tree. Its filename is
mm-page_alloc-extend-kernelcore-and-movablecore-for-percent-fix.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-page_alloc-extend-kernelcore-and-movablecore-for-percent-fix.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-page_alloc-extend-kernelcore-and-movablecore-for-percent-fix.patch
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------------------------------------------------------
From: David Rientjes <rientjes@xxxxxxxxxx>
Subject: mm-page_alloc-extend-kernelcore-and-movablecore-for-percent-fix
Specify that movablecore= can use a percent value.
Remove comment about hugetlb pages not being movable per Mike.
Link: http://lkml.kernel.org/r/alpine.DEB.2.10.1802131700160.71590@xxxxxxxxxxxxxxxxxxxxxxxxx
Signed-off-by: David Rientjes <rientjes@xxxxxxxxxx>
Reviewed-by: Mike Kravetz <mike.kravetz@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
Documentation/admin-guide/kernel-parameters.txt | 22 +++++++-------
1 file changed, 11 insertions(+), 11 deletions(-)
diff -puN Documentation/admin-guide/kernel-parameters.txt~mm-page_alloc-extend-kernelcore-and-movablecore-for-percent-fix Documentation/admin-guide/kernel-parameters.txt
--- a/Documentation/admin-guide/kernel-parameters.txt~mm-page_alloc-extend-kernelcore-and-movablecore-for-percent-fix
+++ a/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.
_
Patches currently in -mm which might be from rientjes@xxxxxxxxxx are
kernel-relay-limit-kmalloc-size-to-kmalloc_max_size.patch
mm-page_alloc-extend-kernelcore-and-movablecore-for-percent.patch
mm-page_alloc-extend-kernelcore-and-movablecore-for-percent-fix.patch
mm-page_alloc-move-mirrored_kernelcore-to-__meminitdata.patch
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