dmem_cgroup_below_min(9)

💅 dmem_cgroup_below_min 💅

okay so bestie, welcome to the Kernel API Manual ✨ this one's a little function from the cgroup dmem world and it's literally just a yes/no vibe check on your memory usage 🫶

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✨ NAME ✨

dmem_cgroup_below_min — the function that tests whether current usage is within the min limit. that's it, that's the whole job, and it does it slayfully 💖

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🌸 SYNOPSIS 🌸

bool dmem_cgroup_below_min (struct dmem_cgroup_pool_state *root , struct
       dmem_cgroup_pool_state *test );

it hands you back a bool, bestie. no drama, no side quests 👑

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🎀 ARGUMENTS 🎀

• root — the root of the subtree we're calculating protection for 🌳 or… you can pass NULL and it'll calculate global protection instead. iconique flexible behaviour fr fr.
• test — the pool we're actually testing the usage/min limit of 🔍 like, this is the one getting the vibe check.

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⭐ RETURN ⭐

• true if usage is below min and the cgroup is protected 💚
• false otherwise 😭

that's the whole deal. below min + protected = true. anything else = false. periodt.

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🦋 SEE ALSO 🦋

the kernel file is ./kernel/cgroup/dmem.c — go read it, it's giving main character energy 📖

and here's the whole friend group of related functions, all linked up:

• dmem_cgroup_state_evict_valuable(9)
• dmem_cgroup_unregister_region(9)
• dmem_cgroup_register_region(9)
• dmem_cgroup_pool_state_put(9)
• dmem_cgroup_uncharge(9)
• dmem_cgroup_try_charge(9)
• dmem_cgroup_below_low(9)
• dmem_cgroup_get_common_ancestor(9)

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heads up bestie: this page came out of ./kernel/cgroup under the Kernel API Manual, dated October 2026 — so like, future vibes only 💅✨ mwah, go read the source, ily, bye 🎀