[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <1332856364-29995-2-git-send-email-stefano.stabellini@eu.citrix.com>
Date: Tue, 27 Mar 2012 14:52:44 +0100
From: Stefano Stabellini <stefano.stabellini@...citrix.com>
To: konrad.wilk@...cle.com
CC: Stefano.Stabellini@...citrix.com, linux-kernel@...r.kernel.org,
xen-devel@...ts.xensource.com,
Stefano Stabellini <stefano.stabellini@...citrix.com>
Subject: [PATCH 2/2] 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: Stefano Stabellini <stefano.stabellini@...citrix.com>
---
arch/x86/xen/p2m.c | 8 ++------
1 files changed, 2 insertions(+), 6 deletions(-)
diff --git a/arch/x86/xen/p2m.c b/arch/x86/xen/p2m.c
index 1b267e7..7ed8cc3 100644
--- a/arch/x86/xen/p2m.c
+++ b/arch/x86/xen/p2m.c
@@ -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;
}
--
1.7.2.5
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists