[PATCH 2/2] Update documentation on ppc-memtrace

Rashmica Gupta rashmica.g at gmail.com
Fri Aug 3 16:06:01 AEST 2018


Signed-off-by: Rashmica Gupta <rashmica.g at gmail.com>
---
 Documentation/ABI/testing/ppc-memtrace | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/Documentation/ABI/testing/ppc-memtrace b/Documentation/ABI/testing/ppc-memtrace
index 2e8b93741270..9606aed33137 100644
--- a/Documentation/ABI/testing/ppc-memtrace
+++ b/Documentation/ABI/testing/ppc-memtrace
@@ -13,10 +13,11 @@ Contact:	linuxppc-dev at lists.ozlabs.org
 Description:	Write an integer containing the size in bytes of the memory
 		you want removed from each NUMA node to this file - it must be
 		aligned to the memblock size. This amount of RAM will be removed
-		from the kernel mappings and the following debugfs files will be
-		created. This can only be successfully done once per boot. Once
-		memory is successfully removed from each node, the following
-		files are created.
+		from each NUMA node in the kernel mappings and the following
+		debugfs files will be created. Once memory is successfully
+		removed from each node, the following files are created. To
+		re-add memory to the kernel, echo 0 into this file (it will be
+		automatically onlined).
 
 What:		/sys/kernel/debug/powerpc/memtrace/<node-id>
 Date:		Aug 2017
-- 
2.14.4



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