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authorKalle Valo <kvalo@kernel.org>2023-01-17 13:36:25 +0200
committerKalle Valo <kvalo@kernel.org>2023-01-17 13:36:25 +0200
commitd0e99511834b6828c960e978d9a8cb6e5731250d (patch)
treee7b062c1f9d28a55083477a1462286a7923a57fd /include/linux/memcontrol.h
parentde7d0ff301fccc75281d7d8eb98c4a47faacf32d (diff)
parent80f8a66dede0a4b4e9e846765a97809c6fe49ce5 (diff)
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Merge wireless into wireless-next
Due to the two cherry picked commits from wireless to wireless-next we have several conflicts in mt76. To avoid any bugs with conflicts merge wireless into wireless-next. 96f134dc1964 wifi: mt76: handle possible mt76_rx_token_consume failures fe13dad8992b wifi: mt76: dma: do not increment queue head if mt76_dma_add_buf fails
Diffstat (limited to 'include/linux/memcontrol.h')
-rw-r--r--include/linux/memcontrol.h31
1 files changed, 21 insertions, 10 deletions
diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index e1644a24009c..d3c8203cab6c 100644
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -615,28 +615,32 @@ static inline void mem_cgroup_protection(struct mem_cgroup *root,
void mem_cgroup_calculate_protection(struct mem_cgroup *root,
struct mem_cgroup *memcg);
-static inline bool mem_cgroup_supports_protection(struct mem_cgroup *memcg)
+static inline bool mem_cgroup_unprotected(struct mem_cgroup *target,
+ struct mem_cgroup *memcg)
{
/*
* The root memcg doesn't account charges, and doesn't support
- * protection.
+ * protection. The target memcg's protection is ignored, see
+ * mem_cgroup_calculate_protection() and mem_cgroup_protection()
*/
- return !mem_cgroup_disabled() && !mem_cgroup_is_root(memcg);
-
+ return mem_cgroup_disabled() || mem_cgroup_is_root(memcg) ||
+ memcg == target;
}
-static inline bool mem_cgroup_below_low(struct mem_cgroup *memcg)
+static inline bool mem_cgroup_below_low(struct mem_cgroup *target,
+ struct mem_cgroup *memcg)
{
- if (!mem_cgroup_supports_protection(memcg))
+ if (mem_cgroup_unprotected(target, memcg))
return false;
return READ_ONCE(memcg->memory.elow) >=
page_counter_read(&memcg->memory);
}
-static inline bool mem_cgroup_below_min(struct mem_cgroup *memcg)
+static inline bool mem_cgroup_below_min(struct mem_cgroup *target,
+ struct mem_cgroup *memcg)
{
- if (!mem_cgroup_supports_protection(memcg))
+ if (mem_cgroup_unprotected(target, memcg))
return false;
return READ_ONCE(memcg->memory.emin) >=
@@ -1209,12 +1213,19 @@ static inline void mem_cgroup_calculate_protection(struct mem_cgroup *root,
{
}
-static inline bool mem_cgroup_below_low(struct mem_cgroup *memcg)
+static inline bool mem_cgroup_unprotected(struct mem_cgroup *target,
+ struct mem_cgroup *memcg)
+{
+ return true;
+}
+static inline bool mem_cgroup_below_low(struct mem_cgroup *target,
+ struct mem_cgroup *memcg)
{
return false;
}
-static inline bool mem_cgroup_below_min(struct mem_cgroup *memcg)
+static inline bool mem_cgroup_below_min(struct mem_cgroup *target,
+ struct mem_cgroup *memcg)
{
return false;
}