Function gbincore

freebsd/kern/vfs_subr.c:2418–2428

* Look up a buffer using the buffer tries. */

 * Look up a buffer using the buffer tries.
 */
struct buf *
gbincore(struct bufobj *bo, daddr_t lblkno)
{
	struct buf *bp;

	ASSERT_BO_LOCKED(bo);
	bp = BUF_PCTRIE_LOOKUP(&bo->bo_clean.bv_root, lblkno);
	if (bp != NULL)
		return (bp);
	return (BUF_PCTRIE_LOOKUP(&bo->bo_dirty.bv_root, lblkno));
}

/*
 * Look up a buf using the buffer tries, without the bufobj lock.  This relies