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cpu-exec: simplify align_clocks

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sc->diff_clk is already equal to sleep_delay (split in a second and a
nanosecond part).  If you subtract sleep_delay - rem_delay, the result
is exactly rem_delay.

Cc: Sebastian Tanase <sebastian.tanase@openwide.fr>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini
2015-02-02 16:55:11 +01:00
parent 2b647668c9
commit a498d0ef37
1 changed files with 1 additions and 2 deletions
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cpu-exec.c
+1 -2
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@@ -61,8 +61,7 @@ static void align_clocks(SyncClocks *sc, const CPUState *cpu)
sleep_delay.tv_sec = sc->diff_clk / 1000000000LL;
sleep_delay.tv_nsec = sc->diff_clk % 1000000000LL;
if (nanosleep(&sleep_delay, &rem_delay) < 0) {
sc->diff_clk -= (sleep_delay.tv_sec - rem_delay.tv_sec) * 1000000000LL;
sc->diff_clk -= sleep_delay.tv_nsec - rem_delay.tv_nsec;
sc->diff_clk = rem_delay.tv_sec * 1000000000LL + rem_delay.tv_nsec;
} else {
sc->diff_clk = 0;
}