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Commit b960d6c4 authored by Stefano Stabellini's avatar Stefano Stabellini Committed by Konrad Rzeszutek Wilk
Browse files

xen/p2m: m2p_find_override: use list_for_each_entry_safe 



Use list_for_each_entry_safe and remove the spin_lock acquisition in
m2p_find_override.

Signed-off-by: default avatarStefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: default avatarKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>
parent e8e937be

arch/x86/xen/p2m.c

+2 −6
Original line number Diff line number Diff line
@@ -809,21 +809,17 @@ struct page *m2p_find_override(unsigned long mfn) 
{

	unsigned long flags;

	struct list_head *bucket = &m2p_overrides[mfn_hash(mfn)];

	struct page *p, *ret;

	struct page *p, *t, *ret;



	ret = NULL;



	spin_lock_irqsave(&m2p_override_lock, flags);



	list_for_each_entry(p, bucket, lru) {

	list_for_each_entry_safe(p, t, bucket, lru) {

		if (page_private(p) == mfn) {

			ret = p;

			break;

		}

	}



	spin_unlock_irqrestore(&m2p_override_lock, flags);



	return ret;

}