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random: schedule jitter credit for next jiffy, not in two jiffies
[ Upstream commit 1227334 ] Counterintuitively, mod_timer(..., jiffies + 1) will cause the timer to fire not in the next jiffy, but in two jiffies. The way to cause the timer to fire in the next jiffy is with mod_timer(..., jiffies). Doing so then lets us bump the upper bound back up again. Fixes: 50ee752 ("random: try to actively add entropy rather than passively wait for it") Fixes: 829d680 ("random: cap jitter samples per bit to factor of HZ") Cc: Dominik Brodowski <linux@dominikbrodowski.net> Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: Sultan Alsawaf <sultan@kerneltoast.com> Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
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