cmm_memory_cb(9)

💖 cmm_memory_cb(9) 💖

okay bestie, this is the cmm_memory_cb(9) page from the Kernel API Manual — manual name folded in near the top, just like a cute little name tag 🫶

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✨ NAME ✨

cmm_memory_cb — handle memory hotplug notifier calls. That's the name, that's the job, and honestly it's giving "small callback, big main character energy" 💅

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🌸 SYNOPSIS 🌸

int cmm_memory_cb (struct notifier_block *self , unsigned long action ,
       void *arg );

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🎀 ARGUMENTS 🎀

• self — the notifier block struct. It's the callback's little passport 🪪
• action — the action to take. Literally, it's the action to take 💫
• arg — struct memory_notify data for handler. This is the data tea being handed over 🍓

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🔥 DESCRIPTION 🔥

It handles memory hotplug notifier calls — that's the whole vibe.

Return value: NOTIFY_OK, or a notifier error based on subfunction return value. Subfunction's return value is the deciding factor, periodt 👑

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🌈 SEE ALSO 🌈

• Kernel file ./arch/powerpc/platforms/pseries/cmm.c
• cmm_alloc_pages(9)
• cmm_free_pages(9)
• cmm_oom_notify(9)
• cmm_get_mpp(9)
• cmm_thread(9)
• cmm_sysfs_register(9)
• cmm_unregister_sysfs(9)
• cmm_reboot_notifier(9)
• cmm_init(9)
• cmm_exit(9)
• cmm_set_disable(9)

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🧚 cute little sign-off: source/version is ./arch/powerpc/platforms/pseries, dated October 2026. stay hydrated, bestie 💖