xa_is_sibling(9)

✨ xa_is_sibling(9) ✨ — Kernel API Manual 🦋

okay so bestie, welcome to the little corner of ./include/linux/xarray.h where we do the vibe check on XArray entries 💅. Say hi to xa_is_sibling — she's short, she's sweet, and she has exactly one job. Let's get into it 🎀

---

🌸 NAME 🌸

xa_is_sibling — literally just: is the entry a sibling entry? that's the whole thing. that's her whole personality 🫶

---

⭐ SYNOPSIS ⭐

bool xa_is_sibling (const void *entry );

look at her. tiny. iconic. returns a bool, takes a const void *. no notes 👑

---

🧚 ARGUMENTS 🧚

• entry — the entry you pulled out of the XArray, handed over so she can look at it 👀 lowkey she just wants to know what it is.

---

🔥 RETURN 🔥

true if the entry is a sibling entry 💖

that's it. that's the return value. no secret third option, no in-between, no "it depends" — just true when it's a sibling entry, periodt ✨

---

🌈 SEE ALSO 🌈

like, the whole extended friend group shows up for this one. the kernel file is ./include/linux/xarray.h, and honestly here's everybody she wants you to meet 💜:

• xa_mk_value(9), xa_to_value(9), xa_is_value(9), xa_tag_pointer(9), xa_untag_pointer(9), xa_pointer_tag(9)
• xa_is_zero(9), xa_is_err(9), xa_err(9), struct xa_limit(9), struct xarray(9), DEFINE_XARRAY_FLAGS(9)
• DEFINE_XARRAY(9), DEFINE_XARRAY_ALLOC(9), DEFINE_XARRAY_ALLOC1(9), xa_init_flags(9), xa_init(9), xa_empty(9)
• xa_marked(9), xa_for_each_range(9), xa_for_each_start(9), xa_for_each(9), xa_for_each_marked(9), xa_store_bh(9)
• xa_store_irq(9), xa_erase_bh(9), xa_erase_irq(9), xa_cmpxchg(9), xa_cmpxchg_bh(9), xa_cmpxchg_irq(9)
• xa_insert(9), xa_insert_bh(9), xa_insert_irq(9), xa_alloc(9), xa_alloc_bh(9), xa_alloc_irq(9)
• xa_alloc_cyclic(9), xa_alloc_cyclic_bh(9), xa_alloc_cyclic_irq(9), xa_reserve(9), xa_reserve_bh(9), xa_reserve_irq(9)
• xa_release(9), xa_is_retry(9), xa_is_advanced(9), xa_update_node_t(9), XA_STATE(9), XA_STATE_ORDER(9)
• xas_error(9), xas_set_err(9), xas_invalid(9), xas_valid(9), xas_is_node(9), xas_reset(9)
• xas_retry(9), xas_reload(9), xas_set(9), xas_advance(9), xas_set_order(9), xas_set_update(9)
• xas_next_entry(9), xas_next_marked(9), xas_for_each(9), xas_for_each_marked(9), xas_for_each_conflict(9), xas_prev(9), xas_next(9)

like I said. the whole group chat 😭💀

---

and that's the page, bestie 🎀 ngl she's a short one but she ate. huge shoutout to ./include/linux for hosting, dated October 2026 — see you in the next (9) section, mwah 💋💜🌸