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14 * in the LICENSE file that accompanied this code).
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21 * CA 95054 USA or visit www.sun.com if you need additional information or
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41 #error Do not #include this file directly. #include <obd.h> instead
44 #include <obd_support.h>
47 # include <linux/fs.h>
48 # include <linux/list.h>
49 # include <linux/sched.h> /* for struct task_struct, for current.h */
50 # include <asm/current.h> /* for smp_lock.h */
51 # include <linux/smp_lock.h>
52 # include <linux/proc_fs.h>
53 # include <linux/mount.h>
54 # include <linux/lustre_intent.h>
60 #ifdef CLIENT_OBD_LIST_LOCK_DEBUG
62 struct task_struct *task;
69 #ifdef CLIENT_OBD_LIST_LOCK_DEBUG
70 static inline void __client_obd_list_lock(client_obd_lock_t *lock,
74 unsigned long cur = jiffies;
76 if (cfs_spin_trylock(&lock->lock)) {
77 LASSERT(lock->task == NULL);
85 if ((jiffies - cur > 5 * CFS_HZ) &&
86 (jiffies - lock->time > 5 * CFS_HZ)) {
87 LCONSOLE_WARN("LOCK UP! the lock %p was acquired"
88 " by <%s:%d:%s:%d> %lu time, I'm %s:%d\n",
89 lock, lock->task->comm, lock->task->pid,
90 lock->func, lock->line,
91 (jiffies - lock->time),
92 current->comm, current->pid);
93 LCONSOLE_WARN("====== for process holding the "
95 libcfs_debug_dumpstack(lock->task);
96 LCONSOLE_WARN("====== for current process =====\n");
97 libcfs_debug_dumpstack(NULL);
98 LCONSOLE_WARN("====== end =======\n");
99 cfs_pause(1000 * CFS_HZ);
104 #define client_obd_list_lock(lock) \
105 __client_obd_list_lock(lock, __FUNCTION__, __LINE__)
107 static inline void client_obd_list_unlock(client_obd_lock_t *lock)
109 LASSERT(lock->task != NULL);
111 lock->time = jiffies;
112 cfs_spin_unlock(&lock->lock);
115 #else /* ifdef CLIENT_OBD_LIST_LOCK_DEBUG */
116 static inline void client_obd_list_lock(client_obd_lock_t *lock)
118 cfs_spin_lock(&lock->lock);
121 static inline void client_obd_list_unlock(client_obd_lock_t *lock)
123 cfs_spin_unlock(&lock->lock);
126 #endif /* ifdef CLIENT_OBD_LIST_LOCK_DEBUG */
128 static inline void client_obd_list_lock_init(client_obd_lock_t *lock)
130 cfs_spin_lock_init(&lock->lock);
133 static inline void client_obd_list_lock_done(client_obd_lock_t *lock)
136 #if defined(__KERNEL__) && !defined(HAVE_ADLER)
137 /* zlib_adler() is an inline function defined in zutil.h */
140 #endif /* __LINUX_OBD_H */