diff options
| -rw-r--r-- | Documentation/admin-guide/cgroup-v1/memory.rst | 8 | ||||
| -rw-r--r-- | mm/memcontrol-v1.c | 3 |
2 files changed, 11 insertions, 0 deletions
diff --git a/Documentation/admin-guide/cgroup-v1/memory.rst b/Documentation/admin-guide/cgroup-v1/memory.rst index 9cde26d33843..0114d758beab 100644 --- a/Documentation/admin-guide/cgroup-v1/memory.rst +++ b/Documentation/admin-guide/cgroup-v1/memory.rst @@ -105,10 +105,18 @@ Brief summary of control files. memory.kmem.max_usage_in_bytes show max kernel memory usage recorded memory.kmem.tcp.limit_in_bytes set/show hard limit for tcp buf memory + This knob is deprecated and shouldn't be + used. memory.kmem.tcp.usage_in_bytes show current tcp buf memory allocation + This knob is deprecated and shouldn't be + used. memory.kmem.tcp.failcnt show the number of tcp buf memory usage hits limits + This knob is deprecated and shouldn't be + used. memory.kmem.tcp.max_usage_in_bytes show max tcp buf memory usage recorded + This knob is deprecated and shouldn't be + used. ==================================== ========================================== 1. History diff --git a/mm/memcontrol-v1.c b/mm/memcontrol-v1.c index ff972a35ecc5..89944f83afb3 100644 --- a/mm/memcontrol-v1.c +++ b/mm/memcontrol-v1.c @@ -2534,6 +2534,9 @@ static ssize_t mem_cgroup_write(struct kernfs_open_file *of, ret = 0; break; case _TCP: + pr_warn_once("kmem.tcp.limit_in_bytes is deprecated and will be removed. " + "Please report your usecase to [email protected] if you " + "depend on this functionality.\n"); ret = memcg_update_tcp_max(memcg, nr_pages); break; } |