47 lines
1.6 KiB
Diff
47 lines
1.6 KiB
Diff
From 97d03d41984a0ade064fa6ac0400eb61de7929ff Mon Sep 17 00:00:00 2001
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From: Michal Kubecek <mkubecek@suse.cz>
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Date: Mon, 31 Dec 2018 00:15:11 +0100
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Subject: [PATCH 4/5] vmmon: bring back the do_gettimeofday() helper
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The do_gettimeofday() helper was removed by commit e4b92b108c6c
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("timekeeping: remove obsolete time accessors") in v5.0-rc1. Bring it back
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for users in vmmon-only/linux/hostif.c.
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This feels like a quick and clumsy band aid to allow build with post-4.20
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kernels. On a closer look, the whole gymnastics around uptimeState and
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HostIFReadUptimeWork() with jiffies and wall time checking and correcting
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each other seems to be a workaround for an absence of high resolution
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monotonic time. Considering ktime_get_ts64() is available since 3.17 and
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before that, ktime_get_ts() since 2.6.17, perhaps the time has come to
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clean all this machinery up. But something like this would be beyond the
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scope of this repository.
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---
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vmmon-only/linux/hostif.c | 11 +++++++++++
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1 file changed, 11 insertions(+)
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diff --git a/vmmon-only/linux/hostif.c b/vmmon-only/linux/hostif.c
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index d32653c..cf4197b 100644
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--- a/vmmon-only/linux/hostif.c
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+++ b/vmmon-only/linux/hostif.c
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@@ -192,6 +192,17 @@ static unsigned long compat_totalram_pages(void)
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#endif
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}
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+#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 0, 0)
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+static void do_gettimeofday(struct timeval *tv)
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+{
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+ struct timespec64 now;
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+
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+ ktime_get_real_ts64(&now);
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+ tv->tv_sec = now.tv_sec;
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+ tv->tv_usec = now.tv_nsec / 1000;
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+}
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+#endif
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+
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/*
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*-----------------------------------------------------------------------------
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*
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--
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2.21.0
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