bitmap_release_region(9)

🌸 NAME 🌸

okay so bitmap_release_region — from the Kernel API Manual, bestie — is literally the function that releases an allocated bitmap region. it's giving “give that region back” energy 💅✨

---

✨ SYNOPSIS ✨

void bitmap_release_region (unsigned long *bitmap , unsigned int pos , int order );

no cap, that's the whole signature 🫶

---

🎀 ARGUMENTS 🎀

• bitmap — the array of unsigned longs corresponding to the bitmap. yes, that's your bitmap bestie 🧚
• pos — the beginning of the bit region to release. like, where the region starts 👑
• order — the region size (log base 2 of number of bits) to release. math era, but make it cute 💖

---

💫 DESCRIPTION 💫

so this one is the complement to __bitmap_find_free_region — literally its other half — and it releases the found region by clearing it in the bitmap. that's the whole vibe: found region goes bye-bye, bits get cleared, main character energy restored 🌈⭐

fr fr, it's the cleanup counterpart. __bitmap_find_free_region finds it, bitmap_release_region releases it. periodt 💅

---

🔗 SEE ALSO 🔗

the whole squad, iykyk:

• Kernel file ./include/linux/bitmap.h
• bitmap overview(9)
• bitmap bitops(9)
• declare bitmap(9)
• bitmap_find_next_zero_area(9)
• bitmap_or_equal(9)
• bitmap_weight_from(9)
• bitmap_scatter(9)
• bitmap_gather(9)
• bitmap_allocate_region(9)
• bitmap_find_free_region(9)
• BITMAP_FROM_U64(9)
• bitmap_from_u64(9)
• bitmap_read(9)
• bitmap_write(9)

---

mwah 💋 this lil page lives under ./include/linux, stamped October 2026, and it's literally called bitmap_release_region(9) — now go clear a region and slay, bestie 🫶🔥