damon_select_ops(9)

🎀 damon_select_ops — the kernel API manual, bestie edition 🎀

okay so welcome to damon_select_ops(9), a page from the Kernel API Manual, and honestly? it's a short one but it's iconic. it's literally the little matchmaker function that pairs your DAMON context with the monitoring operations of its dreams 💅

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✨ NAME ✨

damon_select_ops — select a monitoring operations to use with the context.

like, the whole point. it picks which ops set your context is gonna run with. no cap 🫶

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🌸 SYNOPSIS 🌸

int damon_select_ops (struct damon_ctx *ctx , enum damon_ops_id id );

that's the whole signature, keep it verbatim bestie, do not touch 💖

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🦋 ARGUMENTS 🦋

• ctx — the monitoring context that's gonna be using these operations. this is the main character we're setting up ✨
• id — the id of the registered monitoring operations you wanna select. it's giving "pick me" energy but like, in a legit lookup way 💅

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🌈 DESCRIPTION 🌈

so what actually happens? this function finds the registered monitoring operations set that matches id, and then makes ctx use it. that's it. that's the whole vibe check — find the ops, hand them to the context, slay 🔥

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⭐ RETURN ⭐

• 0 on success 🎉
• a negative error code otherwise 😭 (something went wrong, no cap)

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💜 SEE ALSO 💜

okay this is the part where the page just lists literally everyone in the friend group, and we're keeping every single one fr fr:

• Kernel file ./mm/damon/core.c
• damon_is_registered_ops(9)
• damon_register_ops(9)
• damon_nr_accesses_mvsum(9)
• damon_probe_hits_wsum(9)
• damos_filter_for_ops(9)
• damon_set_attrs(9)
• damon_set_schemes(9)
• damos_commit_quota_goals(9)
• damos_filters_default_reject(9)
• damon_commit_ctx(9)
• damon_nr_running_ctxs(9)
• damon_start(9)
• damon_stop(9)
• damon_is_running(9)
• damon_kdamond_pid(9)
• damon_call(9)
• damos_walk(9)
• damon_set_region_system_rams_default(9)
• damon_update_region_access_rate(9)
• damon_initialized(9)

all of them. every one. go read them, they're literally so good 📚💖

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🧚 tiny reminder: the source path listed on this page is ./mm/damon, and honestly that's where all the lore lives 🍓

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and that's the page!! sign-off time: this one came out of ./mm/damon, dated October 2026 — so yeah, freshly stamped, still warm 🎀💜 bye bestie, go select some ops 🦋✨