diff options
Diffstat (limited to 'Documentation')
-rw-r--r-- | Documentation/ABI/testing/sysfs-devices-memory | 14 | ||||
-rw-r--r-- | Documentation/memory-hotplug.txt | 11 |
2 files changed, 20 insertions, 5 deletions
diff --git a/Documentation/ABI/testing/sysfs-devices-memory b/Documentation/ABI/testing/sysfs-devices-memory index 9fe91c02ee40..bf1627b02a03 100644 --- a/Documentation/ABI/testing/sysfs-devices-memory +++ b/Documentation/ABI/testing/sysfs-devices-memory | |||
@@ -60,6 +60,19 @@ Description: | |||
60 | Users: hotplug memory remove tools | 60 | Users: hotplug memory remove tools |
61 | https://w3.opensource.ibm.com/projects/powerpc-utils/ | 61 | https://w3.opensource.ibm.com/projects/powerpc-utils/ |
62 | 62 | ||
63 | |||
64 | What: /sys/devices/system/memoryX/nodeY | ||
65 | Date: October 2009 | ||
66 | Contact: Linux Memory Management list <linux-mm@kvack.org> | ||
67 | Description: | ||
68 | When CONFIG_NUMA is enabled, a symbolic link that | ||
69 | points to the corresponding NUMA node directory. | ||
70 | |||
71 | For example, the following symbolic link is created for | ||
72 | memory section 9 on node0: | ||
73 | /sys/devices/system/memory/memory9/node0 -> ../../node/node0 | ||
74 | |||
75 | |||
63 | What: /sys/devices/system/node/nodeX/memoryY | 76 | What: /sys/devices/system/node/nodeX/memoryY |
64 | Date: September 2008 | 77 | Date: September 2008 |
65 | Contact: Gary Hade <garyhade@us.ibm.com> | 78 | Contact: Gary Hade <garyhade@us.ibm.com> |
@@ -70,4 +83,3 @@ Description: | |||
70 | memory section directory. For example, the following symbolic | 83 | memory section directory. For example, the following symbolic |
71 | link is created for memory section 9 on node0. | 84 | link is created for memory section 9 on node0. |
72 | /sys/devices/system/node/node0/memory9 -> ../../memory/memory9 | 85 | /sys/devices/system/node/node0/memory9 -> ../../memory/memory9 |
73 | |||
diff --git a/Documentation/memory-hotplug.txt b/Documentation/memory-hotplug.txt index bbc8a6a36921..57e7e9cc1870 100644 --- a/Documentation/memory-hotplug.txt +++ b/Documentation/memory-hotplug.txt | |||
@@ -160,12 +160,15 @@ Under each section, you can see 4 files. | |||
160 | NOTE: | 160 | NOTE: |
161 | These directories/files appear after physical memory hotplug phase. | 161 | These directories/files appear after physical memory hotplug phase. |
162 | 162 | ||
163 | If CONFIG_NUMA is enabled the | 163 | If CONFIG_NUMA is enabled the memoryXXX/ directories can also be accessed |
164 | /sys/devices/system/memory/memoryXXX memory section | 164 | via symbolic links located in the /sys/devices/system/node/node* directories. |
165 | directories can also be accessed via symbolic links located in | 165 | |
166 | the /sys/devices/system/node/node* directories. For example: | 166 | For example: |
167 | /sys/devices/system/node/node0/memory9 -> ../../memory/memory9 | 167 | /sys/devices/system/node/node0/memory9 -> ../../memory/memory9 |
168 | 168 | ||
169 | A backlink will also be created: | ||
170 | /sys/devices/system/memory/memory9/node0 -> ../../node/node0 | ||
171 | |||
169 | -------------------------------- | 172 | -------------------------------- |
170 | 4. Physical memory hot-add phase | 173 | 4. Physical memory hot-add phase |
171 | -------------------------------- | 174 | -------------------------------- |