34 lines
939 B
Diff
34 lines
939 B
Diff
From: Ingo Molnar <mingo@elte.hu>
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Date: Fri, 3 Jul 2009 08:29:30 -0500
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Subject: drivers: random: Reduce preempt disabled region
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.4/patches-4.4.1-rt5.tar.xz
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No need to keep preemption disabled across the whole function.
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Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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---
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drivers/char/random.c | 3 ---
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1 file changed, 3 deletions(-)
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--- a/drivers/char/random.c
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+++ b/drivers/char/random.c
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@@ -796,8 +796,6 @@ static void add_timer_randomness(struct
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} sample;
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long delta, delta2, delta3;
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- preempt_disable();
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-
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sample.jiffies = jiffies;
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sample.cycles = random_get_entropy();
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sample.num = num;
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@@ -838,7 +836,6 @@ static void add_timer_randomness(struct
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*/
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credit_entropy_bits(r, min_t(int, fls(delta>>1), 11));
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}
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- preempt_enable();
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}
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void add_input_randomness(unsigned int type, unsigned int code,
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