___clear_bit(9)

___clear_bit 💅

💖 NAME 💖

okay so bestie, this is ___clear_bit(9) from the Kernel API Manual, and it's lowkey iconic: it clears a bit in memory. no cap, that's the whole main character energy. ✨

🌸 SYNOPSIS 🌸

here's the signature fr fr — copy it exactly, no freelance editing:

void ___clear_bit (unsigned long nr , volatile unsigned long *addr );

🎀 ARGUMENTS 🎀

• nr — the bit to clear 💅
• addr — the address to start counting from 🧚

🦋 DESCRIPTION 🦋

Unlike clear_bit, this function is non-atomic. 🚨 and that's not a vibe check you can skip: if it is called on the same region of memory concurrently, the effect may be that only one operation succeeds. periodt. 💅

🚨 non-atomic caveat: concurrent calls on the same region can mean only one operation succeeds. keep that in mind, bestie — it's giving “not a group project.” 😭

🌈 SEE ALSO 🌈

• Kernel file ./include/asm-generic/bitops/instrumented-non-atomic.h
• ___set_bit(9)
• ___change_bit(9)
• ___test_and_set_bit(9)
• ___test_and_clear_bit(9)
• ___test_and_change_bit(9)
• _test_bit(9)
• _test_bit_acquire(9)

mwah 💋 source/version: ./include/asm-generic/bitops; date: October 2026; page: ___clear_bit(9) — bye bestie, go clear that bit 🫶