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| author | David S. Miller <davem@davemloft.net> | 2010-03-01 04:23:06 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-03-01 04:23:06 +0100 |
| commit | 47871889c601d8199c51a4086f77eebd77c29b0b (patch) | |
| tree | 40cdcac3bff0ee40cc33dcca61d0577cdf965f77 /kernel/lockdep.c | |
| parent | bnx2x: Tx barriers and locks (diff) | |
| parent | Merge branch 'x86-uv-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/... (diff) | |
| download | linux-47871889c601d8199c51a4086f77eebd77c29b0b.tar.xz linux-47871889c601d8199c51a4086f77eebd77c29b0b.zip | |
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.c | 18 |
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) lockdep_print_held_locks(curr); } } + +void lockdep_rcu_dereference(const char *file, const int line) +{ + struct task_struct *curr = current; + + if (!debug_locks_off()) + return; + printk("\n===================================================\n"); + printk( "[ INFO: suspicious rcu_dereference_check() usage. ]\n"); + printk( "---------------------------------------------------\n"); + printk("%s:%d invoked rcu_dereference_check() without protection!\n", + file, line); + printk("\nother info that might help us debug this:\n\n"); + lockdep_print_held_locks(curr); + printk("\nstack backtrace:\n"); + dump_stack(); +} +EXPORT_SYMBOL_GPL(lockdep_rcu_dereference); |