linux-kernel - [PATCH 12/12] get_unmapped_area doesn't need hugetlbfs hacks anymore

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Message-Id: <20070424053342.63371DDF07@ozlabs.org>
Date:	Tue, 24 Apr 2007 15:33:40 +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 12/12] get_unmapped_area doesn't need hugetlbfs hacks anymore 

Remove the hugetlbfs specific hacks in toplevel get_unmapped_area() now
that all archs and hugetlbfs itself do the right thing for both cases.

Signed-off-by: Benjamin Herrenschmidt <benh@...nel.crashing.org>
Acked-by: William Irwin <bill.irwin@...cle.com>

 mm/mmap.c |   16 ----------------
 1 file changed, 16 deletions(-)

Index: linux-cell/mm/mmap.c
===================================================================
--- linux-cell.orig/mm/mmap.c	2007-04-12 12:14:46.000000000 +1000
+++ linux-cell/mm/mmap.c	2007-04-12 12:14:47.000000000 +1000
@@ -1381,22 +1381,6 @@ get_unmapped_area(struct file *file, uns
 	if (addr & ~PAGE_MASK)
 		return -EINVAL;
 
-	if (file && is_file_hugepages(file))  {
-		/*
-		 * Check if the given range is hugepage aligned, and
-		 * can be made suitable for hugepages.
-		 */
-		ret = prepare_hugepage_range(addr, len, pgoff);
-	} else {
-		/*
-		 * Ensure that a normal request is not falling in a
-		 * reserved hugepage range.  For some archs like IA-64,
-		 * there is a separate region for hugepages.
-		 */
-		ret = is_hugepage_only_range(current->mm, addr, len);
-	}
-	if (ret)
-		return -EINVAL;
 	return addr;
 }
 
-
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