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hc

2023-12-08 01573e231f18eb2d99162747186f59511f56b64d

 kernel/kernel/time/timekeeping_internal.h
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@@ -1,12 +1,14 @@
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 /* SPDX-License-Identifier: GPL-2.0 */
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 #ifndef _TIMEKEEPING_INTERNAL_H
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 #define _TIMEKEEPING_INTERNAL_H
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+
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+#include <linux/clocksource.h>
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+#include <linux/spinlock.h>
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+#include <linux/time.h>
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+
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 /*
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  * timekeeping debug functions
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  */
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-#include <linux/clocksource.h>
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-#include <linux/time.h>
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-
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 #ifdef CONFIG_DEBUG_FS
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 extern void tk_debug_account_sleep_time(const struct timespec64 *t);
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 #else
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@@ -31,4 +33,7 @@
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 }
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 #endif
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+/* Semi public for serialization of non timekeeper VDSO updates. */
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+extern raw_spinlock_t timekeeper_lock;
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+
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 #endif /* _TIMEKEEPING_INTERNAL_H */