sync_set_bit(9)

💖 NAME 💖

okay so bestie, this is the sync_set_bit(9) page from the Kernel API Manual — and it is literally the atomically set a bit in memory function. 🎀✨

✨ SYNOPSIS ✨

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

🎀 ARGUMENTS 🎀

• nr — the bit to set. like, which bit is getting the glow-up ✨
• addr — the address to start counting from. that's the starting point, bestie 🫶

🦋 DESCRIPTION 🦋

This function is atomic and may not be reordered. periodt. no cap. If you do not require the atomic guarantees, see __set_bit — that's the one for when you don't need the atomic vibe. 💅

Heads up: nr may be almost arbitrarily large; this function is not restricted to acting on a single-word quantity. so yeah, it's not limited to one word, okay? 🦋

🌈 SEE ALSO 🌈

• Kernel file ./arch/x86/include/asm/sync_bitops.h
• sync_clear_bit(9)
• sync_change_bit(9)
• sync_test_and_set_bit(9)
• sync_test_and_clear_bit(9)
• sync_test_and_change_bit(9)

🫶 that's the whole page, bestie! source/version: ./arch/x86/include/asm · date: October 2026 · page: sync_set_bit(9) 💅