diff options
| author | Sebastian Andrzej Siewior <bigeasy@linutronix.de> | 2021-03-26 16:29:31 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2021-03-29 15:57:02 +0200 |
| commit | 2d445c3e4a8216cfa9703998124c13250cc13e5e (patch) | |
| tree | cecf93bb1432ae47b9b890bf9bfee4ed9e94e7ef /kernel | |
| parent | c15380b72d7ae821ee090ba5a56fc6310828dbda (diff) | |
| download | linux-2d445c3e4a8216cfa9703998124c13250cc13e5e.tar.bz2 | |
locking/rtmutex: Remove rtmutex deadlock tester leftovers
The following debug members of 'struct rtmutex' are unused:
- save_state: No users
- file,line: Printed if ::name is NULL. This is only used for non-futex
locks so ::name is never NULL
- magic: Assigned to NULL by rt_mutex_destroy(), no further usage
Remove them along with unused inline and macro leftovers related to
the long gone deadlock tester.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20210326153943.195064296@linutronix.de
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/locking/rtmutex-debug.c | 7 | ||||
| -rw-r--r-- | kernel/locking/rtmutex-debug.h | 2 | ||||
| -rw-r--r-- | kernel/locking/rtmutex.c | 3 | ||||
| -rw-r--r-- | kernel/locking/rtmutex.h | 2 | ||||
| -rw-r--r-- | kernel/locking/rtmutex_common.h | 1 |
5 files changed, 1 insertions, 14 deletions
diff --git a/kernel/locking/rtmutex-debug.c b/kernel/locking/rtmutex-debug.c index 36e69100e8e0..7e411b946d4c 100644 --- a/kernel/locking/rtmutex-debug.c +++ b/kernel/locking/rtmutex-debug.c @@ -42,12 +42,7 @@ static void printk_task(struct task_struct *p) static void printk_lock(struct rt_mutex *lock, int print_owner) { - if (lock->name) - printk(" [%p] {%s}\n", - lock, lock->name); - else - printk(" [%p] {%s:%d}\n", - lock, lock->file, lock->line); + printk(" [%p] {%s}\n", lock, lock->name); if (print_owner && rt_mutex_owner(lock)) { printk(".. ->owner: %p\n", lock->owner); diff --git a/kernel/locking/rtmutex-debug.h b/kernel/locking/rtmutex-debug.h index fc549713bba3..772c9b012b62 100644 --- a/kernel/locking/rtmutex-debug.h +++ b/kernel/locking/rtmutex-debug.h @@ -22,8 +22,6 @@ extern void debug_rt_mutex_deadlock(enum rtmutex_chainwalk chwalk, struct rt_mutex_waiter *waiter, struct rt_mutex *lock); extern void debug_rt_mutex_print_deadlock(struct rt_mutex_waiter *waiter); -# define debug_rt_mutex_reset_waiter(w) \ - do { (w)->deadlock_lock = NULL; } while (0) static inline bool debug_rt_mutex_detect_deadlock(struct rt_mutex_waiter *waiter, enum rtmutex_chainwalk walk) diff --git a/kernel/locking/rtmutex.c b/kernel/locking/rtmutex.c index ca93e5d7b026..11abc60d1478 100644 --- a/kernel/locking/rtmutex.c +++ b/kernel/locking/rtmutex.c @@ -1594,9 +1594,6 @@ void __sched rt_mutex_futex_unlock(struct rt_mutex *lock) void rt_mutex_destroy(struct rt_mutex *lock) { WARN_ON(rt_mutex_is_locked(lock)); -#ifdef CONFIG_DEBUG_RT_MUTEXES - lock->magic = NULL; -#endif } EXPORT_SYMBOL_GPL(rt_mutex_destroy); diff --git a/kernel/locking/rtmutex.h b/kernel/locking/rtmutex.h index 732f96abf462..4dbdec15f1a0 100644 --- a/kernel/locking/rtmutex.h +++ b/kernel/locking/rtmutex.h @@ -11,7 +11,6 @@ * Non-debug version. */ -#define rt_mutex_deadlock_check(l) (0) #define debug_rt_mutex_init_waiter(w) do { } while (0) #define debug_rt_mutex_free_waiter(w) do { } while (0) #define debug_rt_mutex_lock(l) do { } while (0) @@ -21,7 +20,6 @@ #define debug_rt_mutex_init(m, n, k) do { } while (0) #define debug_rt_mutex_deadlock(d, a ,l) do { } while (0) #define debug_rt_mutex_print_deadlock(w) do { } while (0) -#define debug_rt_mutex_reset_waiter(w) do { } while (0) static inline void rt_mutex_print_deadlock(struct rt_mutex_waiter *w) { diff --git a/kernel/locking/rtmutex_common.h b/kernel/locking/rtmutex_common.h index a5007f00c1b7..aa047436dadf 100644 --- a/kernel/locking/rtmutex_common.h +++ b/kernel/locking/rtmutex_common.h @@ -30,7 +30,6 @@ struct rt_mutex_waiter { struct task_struct *task; struct rt_mutex *lock; #ifdef CONFIG_DEBUG_RT_MUTEXES - unsigned long ip; struct pid *deadlock_task_pid; struct rt_mutex *deadlock_lock; #endif |