From 42a23ca0e54f39d71e84539203189430aa1f1726 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Fri, 17 Jun 2011 18:56:24 +0200
Subject: filemap-fix-up.patch

Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/n/tip-m6yuzd6ul717hlnl2gj6p3ou@git.kernel.org

diff --git a/mm/filemap.c b/mm/filemap.c
index ae4846f..3d2d39a 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -1976,7 +1976,7 @@ size_t iov_iter_copy_from_user_atomic(struct page *page,
 	char *kaddr;
 	size_t copied;
 
-	BUG_ON(!in_atomic());
+	BUG_ON(!pagefault_disabled());
 	kaddr = kmap_atomic(page);
 	if (likely(i->nr_segs == 1)) {
 		int left;
-- 
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