_test_bit_acquire(9)

💖 _test_bit_acquire(9) 💖

okay so welcome to the Kernel API Manual, bestie — this page is all about _test_bit_acquire, the function that determines, with acquire semantics, whether a bit is set. periodt. ✨

🎀 NAME 🎀

_test_bit_acquire — determine, with acquire semantics, whether a bit is set. it’s giving “is this bit actually set?” but with acquire semantics, no cap 💅

🌸 SYNOPSIS 🌸

bool _test_bit_acquire (unsigned long nr , const volatile unsigned long
       *addr );

🦋 ARGUMENTS 🦋

• nr — bit number to test. literally the bit number u wanna test, bestie 🫶
• addr — Address to start counting from. yes, the address to start counting from 💖

✨ SEE ALSO ✨

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

go check those out iykyk 👑

okay that’s the whole vibe! source/version + date: ./include/asm-generic/bitops — October 2026 · mwah 💋