diff options
| author | Roman Gushchin <guro@fb.com> | 2021-06-03 04:09:29 +0300 |
|---|---|---|
| committer | Dennis Zhou <dennis@kernel.org> | 2021-06-05 23:40:59 +0300 |
| commit | 0f0cace35fa655d383b64b4fce83a44d530c9aaf (patch) | |
| tree | 9af377f9fc8a4e9f8eab9e4a89cc33a72a19aad0 /mm/memcontrol.c | |
| parent | 8d55ba5df39a2eb213da63911c1a75001e0717fc (diff) | |
| download | linux-0f0cace35fa655d383b64b4fce83a44d530c9aaf.tar.xz | |
mm, memcg: mark cgroup_memory_nosocket, nokmem and noswap as __ro_after_init
cgroup_memory_nosocket, cgroup_memory_nokmem and cgroup_memory_noswap
are initialized during the kernel initialization and never change
their value afterwards.
cgroup_memory_nosocket, cgroup_memory_nokmem are written only from
cgroup_memory(), which is marked as __init.
cgroup_memory_noswap is written from setup_swap_account() and
mem_cgroup_swap_init(), both are marked as __init.
Mark all three variables as __ro_after_init.
Signed-off-by: Roman Gushchin <guro@fb.com>
Signed-off-by: Dennis Zhou <dennis@kernel.org>
Diffstat (limited to 'mm/memcontrol.c')
| -rw-r--r-- | mm/memcontrol.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/mm/memcontrol.c b/mm/memcontrol.c index e064ac0d850a..e6203ee24a11 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -80,14 +80,14 @@ struct mem_cgroup *root_mem_cgroup __read_mostly; DEFINE_PER_CPU(struct mem_cgroup *, int_active_memcg); /* Socket memory accounting disabled? */ -static bool cgroup_memory_nosocket; +static bool cgroup_memory_nosocket __ro_after_init; /* Kernel memory accounting disabled? */ -static bool cgroup_memory_nokmem; +static bool cgroup_memory_nokmem __ro_after_init; /* Whether the swap controller is active */ #ifdef CONFIG_MEMCG_SWAP -bool cgroup_memory_noswap __read_mostly; +bool cgroup_memory_noswap __ro_after_init; #else #define cgroup_memory_noswap 1 #endif |