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authorDavid S. Miller <davem@davemloft.net>2010-02-28 22:23:06 -0500
committerDavid S. Miller <davem@davemloft.net>2010-02-28 22:23:06 -0500
commit47871889c601d8199c51a4086f77eebd77c29b0b (patch)
tree40cdcac3bff0ee40cc33dcca61d0577cdf965f77 /kernel/lockdep.c
parentc16cc0b464b8876cfd57ce1c1dbcb6f9a6a0bce3 (diff)
parent30ff056c42c665b9ea535d8515890857ae382540 (diff)
Merge branch 'master' of /home/davem/src/GIT/linux-2.6/
Conflicts: drivers/firmware/iscsi_ibft.c
Diffstat (limited to 'kernel/lockdep.c')
-rw-r--r--kernel/lockdep.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/kernel/lockdep.c b/kernel/lockdep.c
index c62ec14609b9..0c30d0455de1 100644
--- a/kernel/lockdep.c
+++ b/kernel/lockdep.c
@@ -3809,3 +3809,21 @@ void lockdep_sys_exit(void)
3809 lockdep_print_held_locks(curr); 3809 lockdep_print_held_locks(curr);
3810 } 3810 }
3811} 3811}
3812
3813void lockdep_rcu_dereference(const char *file, const int line)
3814{
3815 struct task_struct *curr = current;
3816
3817 if (!debug_locks_off())
3818 return;
3819 printk("\n===================================================\n");
3820 printk( "[ INFO: suspicious rcu_dereference_check() usage. ]\n");
3821 printk( "---------------------------------------------------\n");
3822 printk("%s:%d invoked rcu_dereference_check() without protection!\n",
3823 file, line);
3824 printk("\nother info that might help us debug this:\n\n");
3825 lockdep_print_held_locks(curr);
3826 printk("\nstack backtrace:\n");
3827 dump_stack();
3828}
3829EXPORT_SYMBOL_GPL(lockdep_rcu_dereference);