Re: [patch 0/4] x86: PAT followup - Incremental changes and bug fixes

Ingo Molnar
2008-01-17T20:46:01Z

* Ingo Molnar <mingo@elte.hu> wrote:

> I.e. something like below?

or the one below. (it even builds)

Ingo

---
arch/x86/mm/pat.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)

Index: linux-x86.q/arch/x86/mm/pat.c
===================================================================
--- linux-x86.q.orig/arch/x86/mm/pat.c
+++ linux-x86.q/arch/x86/mm/pat.c
@@ -174,7 +174,12 @@ int reserve_mattr(u64 start, u64 end, un
current->comm, current->pid,
start, end,
cattr_name(attr), cattr_name(ml->attr));
- err = -EBUSY;
+ /*
+ * Force the already existing attribute:
+ */
+ ma->attr = ml->attr;
+ if (*fattr)
+ *fattr = ml->attr;
break;
}
} else if (ml->start >= end) {