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author | Thomas Gleixner <tglx@linutronix.de> | 2021-08-16 00:28:33 +0300 |
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committer | Ingo Molnar <mingo@kernel.org> | 2021-08-17 19:24:31 +0300 |
commit | 43d2d52d704e025518d35c3079fcbff744623166 (patch) | |
tree | 3be25d5d3363140ee6cb0422ec2970c8489b453c /kernel/locking/mutex.h | |
parent | a321fb9038b335f3c447d1810b97d5f7eec152ac (diff) | |
download | linux-43d2d52d704e025518d35c3079fcbff744623166.tar.xz |
locking/mutex: Move the 'struct mutex_waiter' definition from <linux/mutex.h> to the internal header
Move the mutex waiter declaration from the public <linux/mutex.h> header
to the internal kernel/locking/mutex.h header.
There is no reason to expose it outside of the core code.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20210815211304.054325923@linutronix.de
Diffstat (limited to 'kernel/locking/mutex.h')
-rw-r--r-- | kernel/locking/mutex.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/kernel/locking/mutex.h b/kernel/locking/mutex.h index 586e4f1f6ebf..0b2a79c4013b 100644 --- a/kernel/locking/mutex.h +++ b/kernel/locking/mutex.h @@ -7,6 +7,19 @@ * Copyright (C) 2004, 2005, 2006 Red Hat, Inc., Ingo Molnar <mingo@redhat.com> */ +/* + * This is the control structure for tasks blocked on mutex, which resides + * on the blocked task's kernel stack: + */ +struct mutex_waiter { + struct list_head list; + struct task_struct *task; + struct ww_acquire_ctx *ww_ctx; +#ifdef CONFIG_DEBUG_MUTEXES + void *magic; +#endif +}; + #ifdef CONFIG_DEBUG_MUTEXES extern void debug_mutex_lock_common(struct mutex *lock, struct mutex_waiter *waiter); |