linux-kernel - [PATCH] mm: fix lockdep build in rcu-protected get_mm_exe

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Message-ID: <20150320144715.24899.24547.stgit@buzz>
Date:	Fri, 20 Mar 2015 17:47:15 +0300
From:	Konstantin Khlebnikov <khlebnikov@...dex-team.ru>
To:	linux-mm@...ck.org, Andrew Morton <akpm@...ux-foundation.org>
Cc:	linux-kernel@...r.kernel.org
Subject: [PATCH] mm: fix lockdep build in rcu-protected get_mm_exe_file()

Signed-off-by: Konstantin Khlebnikov <khlebnikov@...dex-team.ru>
---
 kernel/fork.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/fork.c b/kernel/fork.c
index a7c596517bd6..aa2ba1a34ce8 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -696,7 +696,7 @@ void set_mm_exe_file(struct mm_struct *mm, struct file *new_exe_file)
 {
 	struct file *old_exe_file = rcu_dereference_protected(mm->exe_file,
 			!atomic_read(&mm->mm_users) || current->in_execve ||
-			lock_is_held(&mm->mmap_sem));
+			lockdep_is_held(&mm->mmap_sem));
 
 	if (new_exe_file)
 		get_file(new_exe_file);

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