diff options
| author | Natalie Vock <natalie.vock@gmx.de> | 2026-08-04 10:25:16 +0200 |
|---|---|---|
| committer | Natalie Vock <nat@pixelcluster.dev> | 2026-08-05 10:33:32 +0200 |
| commit | dd517e49a3123f868151ff1a193add8e10ae69ba (patch) | |
| tree | a6ad889d9865ef0564d43b68a600a48ac0565a46 /include/linux | |
| parent | ae2854a7622fa088a2cebd0ac51ef72226301e99 (diff) | |
cgroup/dmem: Add queries for protection values
Callers can use this feedback to be more aggressive in making space for
allocations of a cgroup if they know it is protected.
These are counterparts to memcg's mem_cgroup_below_{min,low}.
Reviewed-by: Maarten Lankhorst <dev@lankhorst.se>
Reviewed-by: Timur Kristóf <timur.kristof@gmail.com>
Signed-off-by: Natalie Vock <natalie.vock@gmx.de>
Link: https://patch.msgid.link/20260804-dmemcg-aggressive-protect-v8-1-07af96681bf8@gmx.de
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/cgroup_dmem.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/include/linux/cgroup_dmem.h b/include/linux/cgroup_dmem.h index dd4869f1d736..1a88cd0c9eb0 100644 --- a/include/linux/cgroup_dmem.h +++ b/include/linux/cgroup_dmem.h @@ -24,6 +24,10 @@ void dmem_cgroup_uncharge(struct dmem_cgroup_pool_state *pool, u64 size); bool dmem_cgroup_state_evict_valuable(struct dmem_cgroup_pool_state *limit_pool, struct dmem_cgroup_pool_state *test_pool, bool ignore_low, bool *ret_hit_low); +bool dmem_cgroup_below_min(struct dmem_cgroup_pool_state *root, + struct dmem_cgroup_pool_state *test); +bool dmem_cgroup_below_low(struct dmem_cgroup_pool_state *root, + struct dmem_cgroup_pool_state *test); void dmem_cgroup_pool_state_put(struct dmem_cgroup_pool_state *pool); #else @@ -59,6 +63,18 @@ bool dmem_cgroup_state_evict_valuable(struct dmem_cgroup_pool_state *limit_pool, return true; } +static inline bool dmem_cgroup_below_min(struct dmem_cgroup_pool_state *root, + struct dmem_cgroup_pool_state *test) +{ + return false; +} + +static inline bool dmem_cgroup_below_low(struct dmem_cgroup_pool_state *root, + struct dmem_cgroup_pool_state *test) +{ + return false; +} + static inline void dmem_cgroup_pool_state_put(struct dmem_cgroup_pool_state *pool) { } |