From: Rashmica Gupta Date: Fri, 3 Aug 2018 06:06:01 +0000 (+1000) Subject: Documentation: Update documentation on ppc-memtrace X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=24576a70e7dfa703617a5e7ae8e6cbd66cfb6e5d;p=openwrt%2Fstaging%2Fblogic.git Documentation: Update documentation on ppc-memtrace Signed-off-by: Rashmica Gupta Signed-off-by: Michael Ellerman --- 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/ Date: Aug 2017