tracing_map_clear(9)

💖 tracing_map_clear(9) 💖

okay so bestie, welcome to the Kernel API Manual — this one's a lil' function called tracing_map_clear and honestly? she's the "start over, fresh slate" icon of the tracing world ✨

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🌸 NAME 🌸

tracing_map_clear — literally just clears a tracing_map, that's the whole gig 💅

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🎀 SYNOPSIS 🎀

void tracing_map_clear (struct tracing_map *map );

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🦋 ARGUMENTS 🦋

• map — the tracing_map you want to clear out. yep. that's the one. go wipe her 🌈

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✨ DESCRIPTION ✨

so what does it do? it resets the tracing map back to a cleared / initial state. like factory reset but make it kernel 🎀

the tracing_map_elts all get cleared, and the array of struct tracing_map_entry gets reset to an initialized state. everything's back to how it started, no cap 💯

⚠️ okay this part is important bestie, don't skip it: callers should make sure there are no writers actively inserting into the map before calling this. if someone's out here mid-insert while you're clearing, that's a bad vibe. check first, then clear. 🫶

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👑 SEE ALSO 👑

kernel file ./kernel/trace/tracing_map.c, plus the whole squad of related functions — they all match, so like, it's giving a full friend group 💜

• tracing_map_update_sum(9)
• tracing_map_read_sum(9)
• tracing_map_set_var(9)
• tracing_map_var_set(9)
• tracing_map_read_var(9)
• tracing_map_read_var_once(9)
• tracing_map_add_sum_field(9)
• tracing_map_add_var(9)
• tracing_map_add_key_field(9)
• tracing_map_insert(9)
• tracing_map_lookup(9)
• tracing_map_destroy(9)
• tracing_map_create(9)
• tracing_map_init(9)
• tracing_map_destroy_sort_entries(9)
• tracing_map_sort_entries(9)

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and that's the page, bestie! 🧚 mwah 💋

sign-off vibes: this iconic lil' entry comes from ./kernel/trace, dated October 2026, and it's filed under tracing_map_clear(9) — remember her name 🎀✨