The patch titled
memcgroup: fix and update documentation
has been added to the -mm tree. Its filename is
memcgroup-fix-and-update-documentation.patch
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------------------------------------------------------
Subject: memcgroup: fix and update documentation
From: Li Zefan <lizf@xxxxxxxxxxxxxx>
- remove trailing " Bytes"s in the demonstration
- remove section 4.4 (feature control_type has been removed)
- fix reference section
Signed-off-by: Li Zefan <lizf@xxxxxxxxxxxxxx>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>
Acked-by: Balbir Singh <balbir@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
Documentation/controllers/memory.txt | 24 +++++++++---------------
1 file changed, 9 insertions(+), 15 deletions(-)
diff -puN Documentation/controllers/memory.txt~memcgroup-fix-and-update-documentation Documentation/controllers/memory.txt
--- a/Documentation/controllers/memory.txt~memcgroup-fix-and-update-documentation
+++ a/Documentation/controllers/memory.txt
@@ -170,14 +170,14 @@ NOTE: We can use a suffix (k, K, m, M, g
mega or gigabytes.
# cat /cgroups/0/memory.limit_in_bytes
-4194304 Bytes
+4194304
NOTE: The interface has now changed to display the usage in bytes
instead of pages
We can check the usage:
# cat /cgroups/0/memory.usage_in_bytes
-1216512 Bytes
+1216512
A successful write to this file does not guarantee a successful set of
this limit to the value written into the file. This can be due to a
@@ -187,7 +187,7 @@ this file after a write to guarantee the
# echo -n 1 > memory.limit_in_bytes
# cat memory.limit_in_bytes
-4096 Bytes
+4096
The memory.failcnt field gives the number of times that the cgroup limit was
exceeded.
@@ -233,13 +233,6 @@ cgroup might have some charge associated
tasks have migrated away from it. Such charges are automatically dropped at
rmdir() if there are no tasks.
-4.4 Choosing what to account -- Page Cache (unmapped) vs RSS (mapped)?
-
-The type of memory accounted by the cgroup can be limited to just
-mapped pages by writing "1" to memory.control_type field
-
-echo -n 1 > memory.control_type
-
5. TODO
1. Add support for accounting huge pages (as a separate controller)
@@ -262,18 +255,19 @@ References
3. Emelianov, Pavel. Resource controllers based on process cgroups
http://lkml.org/lkml/2007/3/6/198
4. Emelianov, Pavel. RSS controller based on process cgroups (v2)
- http://lkml.org/lkml/2007/4/9/74
+ http://lkml.org/lkml/2007/4/9/78
5. Emelianov, Pavel. RSS controller based on process cgroups (v3)
http://lkml.org/lkml/2007/5/30/244
6. Menage, Paul. Control Groups v10, http://lwn.net/Articles/236032/
7. Vaidyanathan, Srinivasan, Control Groups: Pagecache accounting and control
subsystem (v3), http://lwn.net/Articles/235534/
-8. Singh, Balbir. RSS controller V2 test results (lmbench),
+8. Singh, Balbir. RSS controller v2 test results (lmbench),
http://lkml.org/lkml/2007/5/17/232
-9. Singh, Balbir. RSS controller V2 AIM9 results
+9. Singh, Balbir. RSS controller v2 AIM9 results
http://lkml.org/lkml/2007/5/18/1
-10. Singh, Balbir. Memory controller v6 results,
+10. Singh, Balbir. Memory controller v6 test results,
http://lkml.org/lkml/2007/8/19/36
-11. Singh, Balbir. Memory controller v6, http://lkml.org/lkml/2007/8/17/69
+11. Singh, Balbir. Memory controller introduction (v6),
+ http://lkml.org/lkml/2007/8/17/69
12. Corbet, Jonathan, Controlling memory use in cgroups,
http://lwn.net/Articles/243795/
_
Patches currently in -mm which might be from lizf@xxxxxxxxxxxxxx are
cgroup-fix-and-update-documentation.patch
cgroup-fix-comments.patch
cgroup-clean-up-cgrouph.patch
cgroup-fix-memory-leak-in-cgroup_get_sb.patch
cgroup-fix-subsys-bitops.patch
cgroup-remove-duplicate-code-in-find_css_set.patch
cgroup-remove-dead-code-in-cgroup_get_rootdir.patch
memcgroup-fix-and-update-documentation.patch
memcgroup-remove-a-useless-vm_bug_on.patch
memcgroup-return-negative-error-code-in-mem_cgroup_create.patch
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