klp_shadow_free_all(9)

✨ klp_shadow_free_all ✨

okay so real talk, this is a page from the Kernel API Manual — specifically the klp_shadow_free_all(9) entry, bestie. it's short, it's sweet, and it's literally the cleanup crew of the shadow variable world. let's get into it 💅

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🎀 NAME 🎀

klp_shadow_free_all — detach and free all the <_, id> shadow variables. every single one. no cap 🫶

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🌸 SYNOPSIS 🌸

void klp_shadow_free_all (unsigned long id , klp_shadow_dtor_t dtor );

that's the whole vibe. void return, so nothing comes back to you — she just does her thing and leaves ✨

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🦋 ARGUMENTS 🦋

• id — the data identifier. this is the <_, id> half of the deal — the thing that says "yep, these are mine" 💖
• dtor — a custom callback that can be used to unregister the variable and/or free the data that the shadow variable points to. it's optional, so like, you can pass one or you can just vibe without it 🙈

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🔥 DESCRIPTION 🔥

so what does she actually do? klp_shadow_free_all releases the memory for all the <_, id> shadow variable instances. all of them. the whole group chat 😭

and important: callers should stop referencing them accordingly. like, once she's freed them, they're gone — don't be out here holding a pointer to your ex, that's not it. stop referencing them accordingly, fr fr ⚠️

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🧚 SEE ALSO 🧚

• Kernel file ./kernel/livepatch/shadow.c
• Shadow variable API concurrency notes:(9) — yes, the concurrency notes, go read them, iykyk 👀
• struct klp_shadow(9)
• klp_shadow_match(9)
• klp_shadow_get(9)
• klp_shadow_alloc(9)
• klp_shadow_get_or_alloc(9)
• klp_shadow_free(9)

the whole family, basically. it's giving found family 💜

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ngl if you're freeing all of them, make sure that's actually what you want. she takes "all" very literally 👑

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signing off from ./kernel/livepatch, dated October 2026, brought to you by the Kernel API Manual — slay, go free some shadow variables, bestie 🎀💖✨