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Fix: mm: create the new vm_fault_t type (v5.1)
[lttng-modules.git]
/
lib
/
ringbuffer
/
frontend_types.h
diff --git
a/lib/ringbuffer/frontend_types.h
b/lib/ringbuffer/frontend_types.h
index 283a254f2a61dccc0725b1d9d03d546838fe1ee4..837a926ff2ebe54211486873f2db77193103505f 100644
(file)
--- a/
lib/ringbuffer/frontend_types.h
+++ b/
lib/ringbuffer/frontend_types.h
@@
-1,26
+1,22
@@
-#ifndef _LINUX_RING_BUFFER_FRONTEND_TYPES_H
-#define _LINUX_RING_BUFFER_FRONTEND_TYPES_H
-
-/*
- * linux/ringbuffer/frontend_types.h
+/* SPDX-License-Identifier: (GPL-2.0 OR LGPL-2.1)
*
*
- *
(C) Copyright 2005-2010 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ *
lib/ringbuffer/frontend_types.h
*
* Ring Buffer Library Synchronization Header (types).
*
*
* Ring Buffer Library Synchronization Header (types).
*
- * Author:
- * Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ * Copyright (C) 2010-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
*
* See ring_buffer_frontend.c for more information on wait-free algorithms.
*
* See ring_buffer_frontend.c for more information on wait-free algorithms.
- *
- * Dual LGPL v2.1/GPL v2 license.
*/
*/
+#ifndef _LIB_RING_BUFFER_FRONTEND_TYPES_H
+#define _LIB_RING_BUFFER_FRONTEND_TYPES_H
+
#include <linux/kref.h>
#include <linux/kref.h>
-#include
"../../wrapper/ringbuffer/config.h"
-#include
"../../wrapper/ringbuffer/backend_types.h"
-#include
"../../wrapper/spinlock.h"
-#include
"../../lib/prio_heap/lttng_prio_heap.h" /* For per-CPU read-side iterator */
+#include
<wrapper/ringbuffer/config.h>
+#include
<wrapper/ringbuffer/backend_types.h>
+#include
<lib/prio_heap/lttng_prio_heap.h> /* For per-CPU read-side iterator */
+#include
<lttng-cpuhotplug.h>
/*
* A switch is done during tracing or as a final flush after tracing (so it
/*
* A switch is done during tracing or as a final flush after tracing (so it
@@
-57,11
+53,17
@@
struct channel {
unsigned long switch_timer_interval; /* Buffer flush (jiffies) */
unsigned long read_timer_interval; /* Reader wakeup (jiffies) */
unsigned long switch_timer_interval; /* Buffer flush (jiffies) */
unsigned long read_timer_interval; /* Reader wakeup (jiffies) */
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,10,0))
+ struct lttng_cpuhp_node cpuhp_prepare;
+ struct lttng_cpuhp_node cpuhp_online;
+ struct lttng_cpuhp_node cpuhp_iter_online;
+#else
struct notifier_block cpu_hp_notifier; /* CPU hotplug notifier */
struct notifier_block cpu_hp_notifier; /* CPU hotplug notifier */
- struct notifier_block tick_nohz_notifier; /* CPU nohz notifier */
struct notifier_block hp_iter_notifier; /* hotplug iterator notifier */
struct notifier_block hp_iter_notifier; /* hotplug iterator notifier */
- int cpu_hp_enable:1; /* Enable CPU hotplug notif. */
- int hp_iter_enable:1; /* Enable hp iter notif. */
+ unsigned int cpu_hp_enable:1; /* Enable CPU hotplug notif. */
+ unsigned int hp_iter_enable:1; /* Enable hp iter notif. */
+#endif
+ struct notifier_block tick_nohz_notifier; /* CPU nohz notifier */
wait_queue_head_t read_wait; /* reader wait queue */
wait_queue_head_t hp_wait; /* CPU hotplug wait queue */
int finalized; /* Has channel been finalized */
wait_queue_head_t read_wait; /* reader wait queue */
wait_queue_head_t hp_wait; /* CPU hotplug wait queue */
int finalized; /* Has channel been finalized */
@@
-94,8
+96,8
@@
struct lib_ring_buffer_iter {
ITER_NEXT_RECORD,
ITER_PUT_SUBBUF,
} state;
ITER_NEXT_RECORD,
ITER_PUT_SUBBUF,
} state;
- int allocated:1;
-
int read_open:1;
/* Opened for reading ? */
+
unsigned
int allocated:1;
+
unsigned int read_open:1;
/* Opened for reading ? */
};
/* ring buffer state */
};
/* ring buffer state */
@@
-129,6
+131,7
@@
struct lib_ring_buffer {
union v_atomic records_count; /* Number of records written */
union v_atomic records_overrun; /* Number of overwritten records */
wait_queue_head_t read_wait; /* reader buffer-level wait queue */
union v_atomic records_count; /* Number of records written */
union v_atomic records_overrun; /* Number of overwritten records */
wait_queue_head_t read_wait; /* reader buffer-level wait queue */
+ wait_queue_head_t write_wait; /* writer buffer-level wait queue (for metadata only) */
int finalized; /* buffer has been finalized */
struct timer_list switch_timer; /* timer for periodical switch */
struct timer_list read_timer; /* timer for read poll */
int finalized; /* buffer has been finalized */
struct timer_list switch_timer; /* timer for periodical switch */
struct timer_list read_timer; /* timer for read poll */
@@
-137,9
+140,10
@@
struct lib_ring_buffer {
unsigned long get_subbuf_consumed; /* Read-side consumed */
unsigned long prod_snapshot; /* Producer count snapshot */
unsigned long cons_snapshot; /* Consumer count snapshot */
unsigned long get_subbuf_consumed; /* Read-side consumed */
unsigned long prod_snapshot; /* Producer count snapshot */
unsigned long cons_snapshot; /* Consumer count snapshot */
- int get_subbuf:1; /* Sub-buffer being held by reader */
- int switch_timer_enabled:1; /* Protected by ring_buffer_nohz_lock */
- int read_timer_enabled:1; /* Protected by ring_buffer_nohz_lock */
+ unsigned int get_subbuf:1, /* Sub-buffer being held by reader */
+ switch_timer_enabled:1, /* Protected by ring_buffer_nohz_lock */
+ read_timer_enabled:1, /* Protected by ring_buffer_nohz_lock */
+ quiescent:1;
};
static inline
};
static inline
@@
-148,6
+152,8
@@
void *channel_get_private(struct channel *chan)
return chan->backend.priv;
}
return chan->backend.priv;
}
+void lib_ring_buffer_lost_event_too_big(struct channel *chan);
+
/*
* Issue warnings and disable channels upon internal error.
* Can receive struct lib_ring_buffer or struct lib_ring_buffer_backend
/*
* Issue warnings and disable channels upon internal error.
* Can receive struct lib_ring_buffer or struct lib_ring_buffer_backend
@@
-172,4
+178,4
@@
void *channel_get_private(struct channel *chan)
_____ret; \
})
_____ret; \
})
-#endif /* _LI
NUX
_RING_BUFFER_FRONTEND_TYPES_H */
+#endif /* _LI
B
_RING_BUFFER_FRONTEND_TYPES_H */
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