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Date: Wed, 04 Apr 2007 14:01:29 +1000
From: Benjamin Herrenschmidt <benh@...nel.crashing.org>
To: Andrew Morton <akpm@...ux-foundation.org>
CC: <linux-arch@...r.kernel.org>,
Linux Memory Management <linux-mm@...ck.org>,
<linux-kernel@...r.kernel.org>
Subject: [PATCH 7/14] get_unmapped_area handles MAP_FIXED on parisc
Signed-off-by: Benjamin Herrenschmidt <benh@...nel.crashing.org>
---
arch/parisc/kernel/sys_parisc.c | 5 +++++
1 file changed, 5 insertions(+)
Index: linux-cell/arch/parisc/kernel/sys_parisc.c
===================================================================
--- linux-cell.orig/arch/parisc/kernel/sys_parisc.c 2007-03-22 15:28:05.000000000 +1100
+++ linux-cell/arch/parisc/kernel/sys_parisc.c 2007-03-22 15:29:08.000000000 +1100
@@ -106,6 +106,11 @@ unsigned long arch_get_unmapped_area(str
{
if (len > TASK_SIZE)
return -ENOMEM;
+ /* Might want to check for cache aliasing issues for MAP_FIXED case
+ * like ARM or MIPS ??? --BenH.
+ */
+ if (flags & MAP_FIXED)
+ return addr;
if (!addr)
addr = TASK_UNMAPPED_BASE;
-
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