wrapper: remove percpu-defs.h wrapper
authorMathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mon, 13 Apr 2020 18:24:16 +0000 (14:24 -0400)
committerMathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mon, 13 Apr 2020 18:24:16 +0000 (14:24 -0400)
lib/ringbuffer/frontend_api.h
lib/ringbuffer/ring_buffer_frontend.c
wrapper/percpu-defs.h [deleted file]
wrapper/trace-clock.h

index 3c46a1774814d305c6cc21449b7857b9e7bbd599..db2235b91f85dabcf993cb9e60b3796ee53f5464 100644 (file)
@@ -14,9 +14,9 @@
 #define _LIB_RING_BUFFER_FRONTEND_API_H
 
 #include <wrapper/ringbuffer/frontend.h>
-#include <wrapper/percpu-defs.h>
 #include <linux/errno.h>
 #include <linux/prefetch.h>
+#include <linux/percpu-defs.h>
 
 /**
  * lib_ring_buffer_get_cpu - Precedes ring buffer reserve/commit.
@@ -58,7 +58,7 @@ static inline
 void lib_ring_buffer_put_cpu(const struct lib_ring_buffer_config *config)
 {
        barrier();
-       (*lttng_this_cpu_ptr(&lib_ring_buffer_nesting))--;
+       (*this_cpu_ptr(&lib_ring_buffer_nesting))--;
        rcu_read_unlock_sched_notrace();
 }
 
index 664e8652012fece589dac16b1ca3338113a8f9ed..8c9e5ef768857393e2c93c796ca4194ecb3f169a 100644 (file)
@@ -41,6 +41,7 @@
 #include <linux/module.h>
 #include <linux/percpu.h>
 #include <linux/kref.h>
+#include <linux/percpu-defs.h>
 #include <asm/cacheflush.h>
 
 #include <wrapper/ringbuffer/config.h>
@@ -49,7 +50,6 @@
 #include <wrapper/ringbuffer/iterator.h>
 #include <wrapper/ringbuffer/nohz.h>
 #include <wrapper/atomic.h>
-#include <wrapper/percpu-defs.h>
 #include <wrapper/timer.h>
 
 /*
@@ -633,16 +633,16 @@ static int notrace ring_buffer_tick_nohz_callback(struct notifier_block *nb,
                raw_spin_unlock(&buf->raw_tick_nohz_spinlock);
                break;
        case TICK_NOHZ_STOP:
-               spin_lock(lttng_this_cpu_ptr(&ring_buffer_nohz_lock));
+               spin_lock(this_cpu_ptr(&ring_buffer_nohz_lock));
                lib_ring_buffer_stop_switch_timer(buf);
                lib_ring_buffer_stop_read_timer(buf);
-               spin_unlock(lttng_this_cpu_ptr(&ring_buffer_nohz_lock));
+               spin_unlock(this_cpu_ptr(&ring_buffer_nohz_lock));
                break;
        case TICK_NOHZ_RESTART:
-               spin_lock(lttng_this_cpu_ptr(&ring_buffer_nohz_lock));
+               spin_lock(this_cpu_ptr(&ring_buffer_nohz_lock));
                lib_ring_buffer_start_read_timer(buf);
                lib_ring_buffer_start_switch_timer(buf);
-               spin_unlock(lttng_this_cpu_ptr(&ring_buffer_nohz_lock));
+               spin_unlock(this_cpu_ptr(&ring_buffer_nohz_lock));
                break;
        }
 
diff --git a/wrapper/percpu-defs.h b/wrapper/percpu-defs.h
deleted file mode 100644 (file)
index fff8b1d..0000000
+++ /dev/null
@@ -1,29 +0,0 @@
-/* SPDX-License-Identifier: (GPL-2.0-only or LGPL-2.1-only)
- *
- * wrapper/percpu-defs.h
- *
- * wrapper around linux/percpu-defs.h.
- *
- * Copyright (C) 2014 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- */
-
-#ifndef _LTTNG_WRAPPER_PERCPU_DEFS_H
-#define _LTTNG_WRAPPER_PERCPU_DEFS_H
-
-#include <linux/version.h>
-
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,19,0)
-
-#include <linux/percpu-defs.h>
-
-#define lttng_this_cpu_ptr(ptr)                this_cpu_ptr(ptr)
-
-#else /* #if LINUX_VERSION_CODE >= KERNEL_VERSION(3,19,0) */
-
-#include <linux/percpu.h>
-
-#define lttng_this_cpu_ptr(ptr)                (&__get_cpu_var(*(ptr)))
-
-#endif /* #else #if LINUX_VERSION_CODE >= KERNEL_VERSION(3,19,0) */
-
-#endif /* _LTTNG_WRAPPER_PERCPU_DEFS_H */
index a08c6a8b65345d20918ca604eec29bdfe767760a..c51f8d3cf3652708dac979ad801b66ffc42683d0 100644 (file)
 #include <linux/hrtimer.h>
 #include <linux/percpu.h>
 #include <linux/version.h>
+#include <linux/percpu-defs.h>
 #include <asm/local.h>
 #include <lttng-kernel-version.h>
 #include <lttng-clock.h>
 #include <wrapper/compiler.h>
-#include <wrapper/percpu-defs.h>
 #include <wrapper/random.h>
 #include <blacklist/timekeeping.h>
 
@@ -71,7 +71,7 @@ static inline u64 trace_clock_monotonic_wrapper(void)
 
        /* Use fast nmi-safe monotonic clock provided by the Linux kernel. */
        preempt_disable();
-       last_tsc_ptr = lttng_this_cpu_ptr(&lttng_last_tsc);
+       last_tsc_ptr = this_cpu_ptr(&lttng_last_tsc);
        last = *last_tsc_ptr;
        /*
         * Read "last" before "now". It is not strictly required, but it ensures
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