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authorXiongwei Song <xiongwei.song@windriver.com>2024-02-29 22:20:07 +0800
committerTejun Heo <tj@kernel.org>2024-02-29 10:28:19 -1000
commit3ab67a9ce82ff22447b1dad53b49a91d1abbf1ff (patch)
tree889682af039e907bad274fa03813421f2fb0a95c
parent61a182ab61a6dbb8a8782d52347168dc2aa0aa0a (diff)
downloadcgroup-for-6.9.tar.gz
cgroup/cpuset: Mark memory_spread_slab as obsoletecgroup-for-6.9for-6.9
We've removed the SLAB allocator, cpuset_do_slab_mem_spread() and SLAB_MEM_SPREAD, memory_spread_slab is a no-op now. We can mark memory_spread_slab as obsolete in case someone still wants to use it after cpuset_do_slab_mem_spread() removed. For more details, please check [1]. [1] https://lore.kernel.org/lkml/32bc1403-49da-445a-8c00-9686a3b0d6a3@redhat.com/T/#m8e292e21b00f95a4bb8086371fa7387fa4ea8f60 tj: Description and cosmetic updates. Signed-off-by: Xiongwei Song <xiongwei.song@windriver.com> Acked-by: Waiman Long <longman@redhat.com> Signed-off-by: Tejun Heo <tj@kernel.org>
-rw-r--r--Documentation/admin-guide/cgroup-v1/cpusets.rst2
-rw-r--r--kernel/cgroup/cpuset.c1
2 files changed, 2 insertions, 1 deletions
diff --git a/Documentation/admin-guide/cgroup-v1/cpusets.rst b/Documentation/admin-guide/cgroup-v1/cpusets.rst
index ae646d621a8ab6..7d3415eea05d02 100644
--- a/Documentation/admin-guide/cgroup-v1/cpusets.rst
+++ b/Documentation/admin-guide/cgroup-v1/cpusets.rst
@@ -179,7 +179,7 @@ files describing that cpuset:
- cpuset.mem_hardwall flag: is memory allocation hardwalled
- cpuset.memory_pressure: measure of how much paging pressure in cpuset
- cpuset.memory_spread_page flag: if set, spread page cache evenly on allowed nodes
- - cpuset.memory_spread_slab flag: if set, spread slab cache evenly on allowed nodes
+ - cpuset.memory_spread_slab flag: OBSOLETE. Doesn't have any function.
- cpuset.sched_load_balance flag: if set, load balance within CPUs on that cpuset
- cpuset.sched_relax_domain_level: the searching range when migrating tasks
diff --git a/kernel/cgroup/cpuset.c b/kernel/cgroup/cpuset.c
index ba36c073304a3e..c940cf01b14806 100644
--- a/kernel/cgroup/cpuset.c
+++ b/kernel/cgroup/cpuset.c
@@ -3897,6 +3897,7 @@ static struct cftype legacy_files[] = {
},
{
+ /* obsolete, may be removed in the future */
.name = "memory_spread_slab",
.read_u64 = cpuset_read_u64,
.write_u64 = cpuset_write_u64,