From 012c419f8d248fc92915a6d0998802ccd15cded6 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Michal=20Koutn=C3=BD?= Date: Tue, 11 Mar 2025 13:36:19 +0100 Subject: [PATCH] cgroup/cpuset-v1: Add deprecation messages to memory_spread_page and memory_spread_slab MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit There is MPOL_INTERLEAVE for user explicit allocations. Deprecate spreading of allocations that users carry out unwittingly. Use straight warning level for slab spreading since such a knob is unnecessarily intertwined with slab allocator. Signed-off-by: Michal Koutný Acked-by: Waiman Long Signed-off-by: Tejun Heo --- kernel/cgroup/cpuset-v1.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/kernel/cgroup/cpuset-v1.c b/kernel/cgroup/cpuset-v1.c index 7d310d8bb1ad..fcf3fdac21a2 100644 --- a/kernel/cgroup/cpuset-v1.c +++ b/kernel/cgroup/cpuset-v1.c @@ -482,9 +482,11 @@ static int cpuset_write_u64(struct cgroup_subsys_state *css, struct cftype *cft, cpuset_memory_pressure_enabled = !!val; break; case FILE_SPREAD_PAGE: + pr_info_once("cpuset.%s is deprecated\n", cft->name); retval = cpuset_update_flag(CS_SPREAD_PAGE, cs, val); break; case FILE_SPREAD_SLAB: + pr_warn_once("cpuset.%s is deprecated\n", cft->name); retval = cpuset_update_flag(CS_SPREAD_SLAB, cs, val); break; default: