[2/2] Update documentation on ppc-memtrace

Message ID 20180803060601.724-2-rashmica.g@gmail.com
State Accepted
Commit 24576a70e7dfa703617a5e7ae8e6cbd66cfb6e5d
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Series
  • [1/2] powerpc: Allow memory that has been hot-removed to be hot-added
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Commit Message

Rashmica Gupta Aug. 3, 2018, 6:06 a.m.
Signed-off-by: Rashmica Gupta <rashmica.g@gmail.com>
---
 Documentation/ABI/testing/ppc-memtrace | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

Patch

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@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