vma_refcount_put(9)

💅 vma_refcount_put(9) — Kernel API Manual ✨

🎀 NAME 🎀

vma_refcount_put — Drop reference count in VMA vm_refcnt field due to a read-lock being dropped. Bestie, that's the whole assignment. 💖

✨ SYNOPSIS ✨

Okay so the signature is literally this, verbatim, no cap:

void vma_refcount_put (struct vm_area_struct *vma );

🌸 ARGUMENTS 🌸

• vma — the VMA whose reference count we wish to decrement. Yep, that's the one. 🫶

🦋 DESCRIPTION 🦋

Here's the tea: if we were the last reader, wake up threads waiting to obtain an exclusive lock. That's it. That's the description. Short, iconic, to the point. 💅✨

🌈 SEE ALSO 🌈

Go peek at the kernel file ./include/linux/mmap_lock.h, and also these very important besties:

• vma_start_write_killable(9)
• vma_assert_write_locked(9)
• vma_assert_locked(9)
• vma_assert_stabilised(9)

Source/version: ./include/linux · Date: October 2026 · page: vma_refcount_put(9) — mwah, bye bestie 💋🎀