Ensure that all of the lock dependency tracking code is under
CONFIG_PROVE_LOCKING. This allows us to use the held lock tracking code
for other purposes.
Signed-off-by: Peter Zijlstra <[email protected]>
Acked-by: Ingo Molnar <[email protected]>
Acked-by: Jason Baron <[email protected]>
---
kernel/lockdep.c | 13 ++++++++++++-
kernel/spinlock.c | 4 ++--
2 files changed, 14 insertions(+), 3 deletions(-)
Index: linux-2.6-git/kernel/lockdep.c
===================================================================
--- linux-2.6-git.orig/kernel/lockdep.c
+++ linux-2.6-git/kernel/lockdep.c
@@ -95,6 +95,7 @@ static int lockdep_initialized;
unsigned long nr_list_entries;
static struct lock_list list_entries[MAX_LOCKDEP_ENTRIES];
+#ifdef CONFIG_PROVE_LOCKING
/*
* Allocate a lockdep entry. (assumes the graph_lock held, returns
* with NULL on failure)
@@ -111,6 +112,7 @@ static struct lock_list *alloc_list_entr
}
return list_entries + nr_list_entries++;
}
+#endif
/*
* All data structures here are protected by the global debug_lock.
@@ -140,7 +142,9 @@ LIST_HEAD(all_lock_classes);
static struct list_head classhash_table[CLASSHASH_SIZE];
unsigned long nr_lock_chains;
+#ifdef CONFIG_PROVE_LOCKING
static struct lock_chain lock_chains[MAX_LOCKDEP_CHAINS];
+#endif
/*
* We put the lock dependency chains into a hash-table as well, to cache
@@ -486,6 +490,7 @@ static void print_lock_dependencies(stru
}
}
+#ifdef CONFIG_PROVE_LOCKING
/*
* Add a new dependency to the head of the list:
*/
@@ -545,6 +550,7 @@ print_circular_bug_entry(struct lock_lis
return 0;
}
+#endif
static void print_kernel_version(void)
{
@@ -553,6 +559,7 @@ static void print_kernel_version(void)
init_utsname()->version);
}
+#ifdef CONFIG_PROVE_LOCKING
/*
* When a circular dependency is detected, print the
* header first:
@@ -643,6 +650,7 @@ check_noncircular(struct lock_class *sou
}
return 1;
}
+#endif
static int very_verbose(struct lock_class *class)
{
@@ -827,6 +835,7 @@ check_usage(struct task_struct *curr, st
#endif
+#ifdef CONFIG_PROVE_LOCKING
static int
print_deadlock_bug(struct task_struct *curr, struct held_lock *prev,
struct held_lock *next)
@@ -1091,7 +1100,7 @@ out_bug:
return 0;
}
-
+#endif
/*
* Is this the address of a static object:
@@ -1311,6 +1320,7 @@ out_unlock_set:
return class;
}
+#ifdef CONFIG_PROVE_LOCKING
/*
* Look up a dependency chain. If the key is not present yet then
* add it and return 1 - in this case the new dependency chain is
@@ -1385,6 +1395,7 @@ cache_hit:
return 1;
}
+#endif
/*
* We are building curr_chain_key incrementally, so double-check
Index: linux-2.6-git/kernel/spinlock.c
===================================================================
--- linux-2.6-git.orig/kernel/spinlock.c
+++ linux-2.6-git/kernel/spinlock.c
@@ -88,7 +88,7 @@ unsigned long __lockfunc _spin_lock_irqs
* _raw_spin_lock_flags() code, because lockdep assumes
* that interrupts are not re-enabled during lock-acquire:
*/
-#ifdef CONFIG_PROVE_LOCKING
+#ifdef CONFIG_LOCKDEP
_raw_spin_lock(lock);
#else
_raw_spin_lock_flags(lock, &flags);
@@ -305,7 +305,7 @@ unsigned long __lockfunc _spin_lock_irqs
* _raw_spin_lock_flags() code, because lockdep assumes
* that interrupts are not re-enabled during lock-acquire:
*/
-#ifdef CONFIG_PROVE_SPIN_LOCKING
+#ifdef CONFIG_LOCKDEP
_raw_spin_lock(lock);
#else
_raw_spin_lock_flags(lock, &flags);
--
--
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
