Commit 3ab67a9c authored by Xiongwei Song's avatar Xiongwei Song Committed by Tejun Heo
Browse files

cgroup/cpuset: Mark memory_spread_slab as obsolete 

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: default avatarXiongwei Song <xiongwei.song@windriver.com>
Acked-by: default avatarWaiman Long <longman@redhat.com>
Signed-off-by: default avatarTejun Heo <tj@kernel.org>
parent 61a182ab

Documentation/admin-guide/cgroup-v1/cpusets.rst

+1 −1
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@@ -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

kernel/cgroup/cpuset.c

+1 −0
Original line number Diff line number Diff line
@@ -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,