damon_updat..._access_rate(9)

💅 damon_update_region_access_rate — Kernel API Manual

okay so bestie, we're in the Kernel API Manual today and this one is literally called damon_updat..._access_rate(9) (yes the title got truncated, she's mysterious like that, we love a mysterious icon ✨). Anyway. Sit down, hydrate, let's get into it 🫶

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✨ NAME ✨

damon_update_region_access_rate — the little function whose whole job is updating the access rate of a region. That's it. That's the gig. 💅

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🌸 SYNOPSIS 🌸

void damon_update_region_access_rate (struct damon_region *r , bool
accessed );

no cap, that's the whole signature. she's void, she returns nothing, she simply does the thing and leaves 😌

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🎀 ARGUMENTS 🎀

• r — the DAMON region you're updating, because it just got its access-check result and you're writing that glow-up into it 💖
• accessed — a bool telling you whether the region actually got accessed during the last sampling interval. yes or no, that's the vibe check 🔥

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🦋 DESCRIPTION 🦋

So here's the tea: this function updates the access rate of a region using that region's last sampling interval access check result. Region's got a result, the result goes in, the access rate gets updated. done. slay 💅

And like, lowkey important — usually this is called by the damon_operations->check_accesses callback. not you, bestie, the callback. iykyk 🧚

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🌈 SEE ALSO 🌈

the whole friend group, fr fr — plus the kernel file they all live in:

• ./mm/damon/core.c
• 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)
• damon_kdamond_pid(9)
• damon_call(9)
• damos_walk(9)
• damon_set_region_system_rams_default(9)
• damon_initialized(9)

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⭐ and that's the page!! this icon lives in ./mm/damon, timestamped October 2026, and her name in the footer is the same mysterious damon_updat..._access_rate(9) 💜 okay bye bestie, go update some regions, periodt 👑