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| author | Johannes Weiner <hannes@cmpxchg.org> | 2014-12-11 00:42:37 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-12-11 02:41:04 +0100 |
| commit | 5b1efc027c0b51ca3e76f4e00c83358f8349f543 (patch) | |
| tree | ef12cdcbfb7ac8ad45b66e6ee5e6cf9f2d566418 /Documentation/cgroups/memory.txt | |
| parent | mm: hugetlb_cgroup: convert to lockless page counters (diff) | |
| download | linux-5b1efc027c0b51ca3e76f4e00c83358f8349f543.tar.xz linux-5b1efc027c0b51ca3e76f4e00c83358f8349f543.zip | |
kernel: res_counter: remove the unused API
All memory accounting and limiting has been switched over to the
lockless page counters. Bye, res_counter!
[akpm@linux-foundation.org: update Documentation/cgroups/memory.txt]
[mhocko@suse.cz: ditch the last remainings of res_counter]
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Vladimir Davydov <vdavydov@parallels.com>
Acked-by: Michal Hocko <mhocko@suse.cz>
Cc: Tejun Heo <tj@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Michal Hocko <mhocko@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'Documentation/cgroups/memory.txt')
| -rw-r--r-- | Documentation/cgroups/memory.txt | 17 |
1 files changed, 8 insertions, 9 deletions
diff --git a/Documentation/cgroups/memory.txt b/Documentation/cgroups/memory.txt index f624727ab404..67613ff0270c 100644 --- a/Documentation/cgroups/memory.txt +++ b/Documentation/cgroups/memory.txt @@ -116,16 +116,16 @@ The memory controller is the first controller developed. 2.1. Design -The core of the design is a counter called the res_counter. The res_counter -tracks the current memory usage and limit of the group of processes associated -with the controller. Each cgroup has a memory controller specific data -structure (mem_cgroup) associated with it. +The core of the design is a counter called the page_counter. The +page_counter tracks the current memory usage and limit of the group of +processes associated with the controller. Each cgroup has a memory controller +specific data structure (mem_cgroup) associated with it. 2.2. Accounting +--------------------+ - | mem_cgroup | - | (res_counter) | + | mem_cgroup | + | (page_counter) | +--------------------+ / ^ \ / | \ @@ -352,9 +352,8 @@ set: 0. Configuration a. Enable CONFIG_CGROUPS -b. Enable CONFIG_RESOURCE_COUNTERS -c. Enable CONFIG_MEMCG -d. Enable CONFIG_MEMCG_SWAP (to use swap extension) +b. Enable CONFIG_MEMCG +c. Enable CONFIG_MEMCG_SWAP (to use swap extension) d. Enable CONFIG_MEMCG_KMEM (to use kmem extension) 1. Prepare the cgroups (see cgroups.txt, Why are cgroups needed?) |