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[PATCH] pi-futex: rt mutex core

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Core functions for the rt-mutex subsystem.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Ingo Molnar 2006-06-27 02:54:53 -07:00 • committed by Linus Torvalds
parent b29739f902
commit 23f78d4a03
11 changed files with 1181 additions and 0 deletions
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12
include/linux/sched.h
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@ -73,6 +73,7 @@ struct sched_param {
#include <linux/seccomp.h>
#include <linux/rcupdate.h>
#include <linux/futex.h>
#include <linux/rtmutex.h>
#include <linux/time.h>
#include <linux/param.h>
@ -858,6 +859,17 @@ struct task_struct {
/* Protection of the PI data structures: */
spinlock_t pi_lock;
#ifdef CONFIG_RT_MUTEXES
/* PI waiters blocked on a rt_mutex held by this task */
struct plist_head pi_waiters;
/* Deadlock detection and priority inheritance handling */
struct rt_mutex_waiter *pi_blocked_on;
# ifdef CONFIG_DEBUG_RT_MUTEXES
spinlock_t held_list_lock;
struct list_head held_list_head;
# endif
#endif
#ifdef CONFIG_DEBUG_MUTEXES
/* mutex deadlock detection */
struct mutex_waiter *blocked_on;