tegrakernel/kernel/kernel-4.9/rt-patches/0055-drivers-random-Reduce-...

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2022-02-16 09:13:02 -06:00
From 6d7f26e8f502a7fe1217e10b9ec557010d53d449 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Fri, 3 Jul 2009 08:29:30 -0500
Subject: [PATCH 055/365] drivers: random: Reduce preempt disabled region
No need to keep preemption disabled across the whole function.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
drivers/char/random.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/drivers/char/random.c b/drivers/char/random.c
index 4cbc73173701..f1fb82b3e66c 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -1087,8 +1087,6 @@ static void add_timer_randomness(struct timer_rand_state *state, unsigned num)
} sample;
long delta, delta2, delta3;
- preempt_disable();
-
sample.jiffies = jiffies;
sample.cycles = random_get_entropy();
sample.num = num;
@@ -1129,7 +1127,6 @@ static void add_timer_randomness(struct timer_rand_state *state, unsigned num)
*/
credit_entropy_bits(r, min_t(int, fls(delta>>1), 11));
}
- preempt_enable();
}
void add_input_randomness(unsigned int type, unsigned int code,
--
2.28.0