linux-kernel - [PATCH 2/12] get_unmapped_area handles MAP

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Message-Id: <20070424053337.49089DDF07@ozlabs.org>
Date:	Tue, 24 Apr 2007 15:33:34 +1000
From:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
To:	Andrew Morton <akpm@...ux-foundation.org>
CC:	<linux-kernel@...r.kernel.org>,
	Linux Memory Management <linux-mm@...ck.org>
Subject: [PATCH 2/12] get_unmapped_area handles MAP_FIXED on alpha

Handle MAP_FIXED in alpha's arch_get_unmapped_area(), simple case, just
return the address as passed in

Signed-off-by: Benjamin Herrenschmidt <benh@...nel.crashing.org>

 arch/alpha/kernel/osf_sys.c |    3 +++
 1 file changed, 3 insertions(+)

Index: linux-cell/arch/alpha/kernel/osf_sys.c
===================================================================
--- linux-cell.orig/arch/alpha/kernel/osf_sys.c	2007-03-22 14:58:33.000000000 +1100
+++ linux-cell/arch/alpha/kernel/osf_sys.c	2007-03-22 14:58:44.000000000 +1100
@@ -1267,6 +1267,9 @@ arch_get_unmapped_area(struct file *filp
 	if (len > limit)
 		return -ENOMEM;
 
+	if (flags & MAP_FIXED)
+		return addr;
+
 	/* First, see if the given suggestion fits.
 
 	   The OSF/1 loader (/sbin/loader) relies on us returning an
-
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