damon_kdamond_pid(9)

💅 damon_kdamond_pid(9) — like, the Kernel API Manual page, bestie

okay so this is damon_kdamond_pid(9) from the Kernel API Manual and honestly? it's a short one but it's a good one. we're getting the pid of a DAMON context's worker thread. that's it. that's the whole vibe. ✨

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🌸 NAME 🌸

damon_kdamond_pid — returns the pid of a given DAMON context's worker thread, no cap 🫶

🎀 SYNOPSIS 🎀

int damon_kdamond_pid (struct damon_ctx *ctx );

literally just hand it a ctx and it does its thing 💖

🦋 ARGUMENTS 🦋

• ctx — the DAMON context of the question 👀 like, the specific one you're curious about. the ctx. your main character context, if you will.

⭐ RETURN ⭐

so here's the deal:

• it returns a pid if ctx is running 🔥
• and a negative error code otherwise 😭 (not running = no pid for you, sorry bestie)

fr fr, check the return value. a negative error code is still a return, it's just not the one you wanted 💀

🌈 SEE ALSO 🌈

okay this list is long and every single one of these is iconic in its own right, so let's give them their moment 👑

• the kernel file ./mm/damon/core.c — the source material, the blueprint, the origin story 💜
• damon_is_registered_ops(9)
• damon_register_ops(9)
• damon_select_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) — lowkey the bestie of this very page, iykyk
• damon_call(9)
• damos_walk(9)
• damon_set_region_system_rams_default(9)
• damon_update_region_access_rate(9)
• damon_initialized(9)

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and that's the page!! 🧚 it's giving short-but-sweet, it's giving "everything you need and nothing you don't", periodt 💅

mwah 💋 — this one's from the ./mm/damon corner of the kernel tree, dated October 2026, and it's the damon_kdamond_pid(9) manual page signing off. go get that pid, bestie 🍓