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mm/vmalloc: group xa_init with vbq field initializations

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Patch series "mm/vmalloc: minor cleanups", v2.

Small cleanup series for mm/vmalloc.c, no functional changes:

- Group xa_init() with the other vmap_block_queue field initializations
  in vmalloc_init(), instead of after the unrelated vfree_deferred setup.

- Extract vmap_insert_free_area() helper to deduplicate the allocate-
  and-insert pattern that appeared both inside the loop body and after
  the loop in vmap_init_free_space().

- Extract show_busy_info() from vmalloc_info_show(), mirroring the
  existing show_purge_info() pattern, so the top-level show function
  only orchestrates the two data sources.


This patch (of 3):

Move xa_init() next to the other vbq field initializations instead of
after the unrelated vfree_deferred setup.

Link: https://lore.kernel.org/20260915-vmalloc_study-v2-0-cc4dfe635e22@linux.dev
Link: https://lore.kernel.org/20260915-vmalloc_study-v2-1-cc4dfe635e22@linux.dev
Signed-off-by: Ye Liu <liuye@kylinos.cn>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Uladzislau Rezki (Sony) <urezki@gmail.com>
This commit is contained in:
Ye Liu 2026-09-15 10:43:30 +08:00 committed by Andrew Morton
parent d350956d82
commit ebb07f8a8b
1 changed files with 2 additions and 1 deletions
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3
mm/vmalloc.c
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@ -5561,10 +5561,11 @@ void __init vmalloc_init(void)
vbq = &per_cpu(vmap_block_queue, i);
spin_lock_init(&vbq->lock);
INIT_LIST_HEAD(&vbq->free);
xa_init(&vbq->vmap_blocks);
p = &per_cpu(vfree_deferred, i);
init_llist_head(&p->list);
INIT_WORK(&p->wq, delayed_vfree_work);
xa_init(&vbq->vmap_blocks);
}
/*