sbitmap_get_shallow(9)

✨ sbitmap_get_shallow(9) ✨

okay bestie, we're in the Kernel API Manual and this one is lowkey specific but fr fr useful 🎀

🌸 NAME 🌸

sbitmap_get_shallow — try to allocate a free bit from a &struct sbitmap, limiting the depth used from each word. 💅

🦋 SYNOPSIS 🦋

int sbitmap_get_shallow (struct sbitmap *sb , unsigned long
shallow_depth );

🎀 ARGUMENTS 🎀

• sb — the bitmap to allocate from, bestie. 🫶
• shallow_depth — the maximum number of bits to allocate from the bitmap. ✨

💖 DESCRIPTION 💖

So this is a rather specific operation, and it's giving "multiple users, different allocation limits" energy 👑. E.g., there can be a high-priority class that uses sbitmap_get and a low-priority class that uses sbitmap_get_shallow with a shallow_depth of (sb->depth >> 1). Then, the low-priority class can only allocate half of the total bits in the bitmap, preventing it from starving out the high-priority class. no cap, that's the whole point 🧚

⭐ RETURN ⭐

Non-negative allocated bit number if successful, -1 otherwise. periodt. 💅

🌈 SEE ALSO 🌈

Kernel file ./lib/sbitmap.c 👀

xoxo, sending you off with the ./lib source/version vibe, October 2026, and all the sbitmap_get_shallow(9) energy 🎀💖✨