From: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
To: linux-mm@kvack.org, Andrew Morton <akpm@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Subject: [PATCH] mm: fix lockdep build in rcu-protected get_mm_exe_file()
Date: Fri, 20 Mar 2015 17:47:15 +0300 [thread overview]
Message-ID: <20150320144715.24899.24547.stgit@buzz> (raw)
Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-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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WARNING: multiple messages have this Message-ID (diff)
From: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
To: linux-mm@kvack.org, Andrew Morton <akpm@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Subject: [PATCH] mm: fix lockdep build in rcu-protected get_mm_exe_file()
Date: Fri, 20 Mar 2015 17:47:15 +0300 [thread overview]
Message-ID: <20150320144715.24899.24547.stgit@buzz> (raw)
Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-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);
next reply other threads:[~2015-03-20 14:47 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-20 14:47 Konstantin Khlebnikov [this message]
2015-03-20 14:47 ` [PATCH] mm: fix lockdep build in rcu-protected get_mm_exe_file() Konstantin Khlebnikov
2015-03-23 18:11 ` Davidlohr Bueso
2015-03-23 18:11 ` Davidlohr Bueso
2015-03-23 19:10 ` Oleg Nesterov
2015-03-23 19:10 ` Oleg Nesterov
2015-03-24 14:38 ` Davidlohr Bueso
2015-03-24 14:38 ` Davidlohr Bueso
2015-03-24 17:13 ` Konstantin Khlebnikov
2015-03-24 17:13 ` Konstantin Khlebnikov
2015-03-24 18:10 ` Oleg Nesterov
2015-03-24 18:10 ` Oleg Nesterov
2015-03-24 18:15 ` Konstantin Khlebnikov
2015-03-24 18:15 ` Konstantin Khlebnikov
2015-03-24 19:02 ` Oleg Nesterov
2015-03-24 19:02 ` Oleg Nesterov
2015-03-25 1:30 ` [PATCH v2] prctl: avoid using mmap_sem for exe_file serialization Davidlohr Bueso
2015-03-25 1:30 ` Davidlohr Bueso
2015-03-25 9:21 ` Konstantin Khlebnikov
2015-03-25 9:21 ` Konstantin Khlebnikov
2015-03-25 10:42 ` [PATCH v3] " Davidlohr Bueso
2015-03-25 10:42 ` Davidlohr Bueso
2015-03-25 11:08 ` Konstantin Khlebnikov
2015-03-25 11:08 ` Konstantin Khlebnikov
2015-03-25 12:50 ` Davidlohr Bueso
2015-03-25 12:50 ` Davidlohr Bueso
2015-03-25 12:53 ` Oleg Nesterov
2015-03-25 12:53 ` Oleg Nesterov
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