From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: Sun, 6 May 2007 21:50:06 +0000 (-0700)
Subject: get_unmapped_area handles MAP_FIXED on alpha
X-Git-Tag: v2.6.22-rc1~937
X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=4b87b3b2eb1fa2d6ac0a1400ad5fb8f4b7cbfc09;p=~shefty%2Frdma-dev.git

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@kernel.crashing.org>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/arch/alpha/kernel/osf_sys.c b/arch/alpha/kernel/osf_sys.c
index be133f1f75a..67ae41dcb6f 100644
--- a/arch/alpha/kernel/osf_sys.c
+++ b/arch/alpha/kernel/osf_sys.c
@@ -1267,6 +1267,9 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
 	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