linux-kernel - Re: sparc compile error

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Message-ID: <20080210153355.GA6737@palantir8>
Date:	Sun, 10 Feb 2008 15:33:55 +0000
From:	Martin Habets <errandir_news@....eclipse.co.uk>
To:	David Rientjes <rientjes@...gle.com>
Cc:	Adrian Bunk <bunk@...nel.org>, wli@...omorphy.com,
	linux-kernel@...r.kernel.org, sparclinux@...r.kernel.org
Subject: Re: sparc compile error

This still gives build errors with CGROUP_MEM_CONT off.
Some ifdef-ing will fix that.

 Martin

	 Signed-off-by: Martin Habets <errandir_news@....eclipse.co.uk>

Index: sparc-2.6.git/mm/rmap.c
===================================================================
--- sparc-2.6.git.orig/mm/rmap.c	2008-02-10 13:01:37.000000000 +0000
+++ sparc-2.6.git/mm/rmap.c	2008-02-10 14:16:34.000000000 +0000
@@ -321,8 +321,11 @@
 		 * counting on behalf of references from different
 		 * cgroups
 		 */
-		if (mem_cont && (mm_cgroup(vma->vm_mm) != mem_cont))
+#ifdef CONFIG_CGROUP_MEM_CONT
+		if (mem_cont && mem_cont !=
+		    rcu_dereference(vma->vm_mm->mem_cgroup))
 			continue;
+#endif
 		referenced += page_referenced_one(page, vma, &mapcount);
 		if (!mapcount)
 			break;
@@ -382,8 +385,11 @@
 		 * counting on behalf of references from different
 		 * cgroups
 		 */
-		if (mem_cont && (mm_cgroup(vma->vm_mm) != mem_cont))
+#ifdef CONFIG_CGROUP_MEM_CONT
+		if (mem_cont && mem_cont !=
+		    rcu_dereference(vma->vm_mm->mem_cgroup))
 			continue;
+#endif
 		if ((vma->vm_flags & (VM_LOCKED|VM_MAYSHARE))
 				  == (VM_LOCKED|VM_MAYSHARE)) {
 			referenced++;
--
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