__xa_erase(9)

✨ __xa_erase(9) ✨

okay so bestie, this page is straight outta the Kernel API Manual, and it's all about erasing an entry from the XArray while you're locked. let's get into it 💅

🎀 NAME 🎀

__xa_erase — Erase this entry from the XArray while locked. 💖

🌸 SYNOPSIS 🌸

void * __xa_erase (struct xarray *xa , unsigned long index );

🦋 ARGUMENTS 🦋

• xa — XArray.
• index — Index into array.

💫 DESCRIPTION 💫

After this function returns, loading from index will return NULL — like, literally no entry, just NULL energy 🙈. If the index is part of a multi-index entry, all indices will be erased and none of the entries will be part of a multi-index entry. that's the whole behavior, periodt ✨

🔒 CONTEXT 🔒

Any context. On entry, it expects xa_lock to be held — so hold that lock, bestie. that's the vibe check 🫶

🎁 RETURN 🎁

The entry which used to be at this index — that's what you get back 💖

🌈 SEE ALSO 🌈

• Kernel file: ./lib/xarray.c
• Function squad: xas_load(9), xas_nomem(9), xas_free_nodes(9), xas_create_range(9), xas_store(9), xas_get_mark(9), xas_set_mark(9), xas_clear_mark(9), xas_init_marks(9), xas_split_alloc(9), xas_split(9), xas_try_split_min_order(9), xas_try_split(9), xas_pause(9), xas_find(9), xas_find_marked(9), xas_find_conflict(9), xa_load(9), xa_erase(9), __xa_store(9), xa_store(9), __xa_cmpxchg(9), __xa_insert(9), xa_store_range(9), xas_get_order(9), xa_get_order(9), __xa_alloc(9), __xa_alloc_cyclic(9), __xa_set_mark(9), __xa_clear_mark(9), xa_get_mark(9), xa_set_mark(9), xa_clear_mark(9), xa_find(9), xa_find_after(9), xa_extract(9), xa_delete_node(9), xa_destroy(9)

okay bestie, that's the whole page 🫶 source/version: ./lib; date: October 2026; page: __xa_erase(9). slay 💅