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36 lines
968 B
Diff
36 lines
968 B
Diff
From 6c7fa9bfc7c152897b0b1315e412703262182259 Mon Sep 17 00:00:00 2001
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From: Thomas Gleixner <tglx@linutronix.de>
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Date: Tue, 21 Jul 2009 23:06:05 +0200
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Subject: [PATCH 155/450] core: Do not disable interrupts on RT in
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kernel/users.c
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Use the local_irq_*_nort variants to reduce latencies in RT. The code
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is serialized by the locks. No need to disable interrupts.
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Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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---
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kernel/user.c | 4 ++--
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1 file changed, 2 insertions(+), 2 deletions(-)
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diff --git a/kernel/user.c b/kernel/user.c
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index 00281add65b2..f4cf1841f2fd 100644
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--- a/kernel/user.c
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+++ b/kernel/user.c
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@@ -162,11 +162,11 @@ void free_uid(struct user_struct *up)
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if (!up)
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return;
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- local_irq_save(flags);
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+ local_irq_save_nort(flags);
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if (atomic_dec_and_lock(&up->__count, &uidhash_lock))
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free_user(up, flags);
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else
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- local_irq_restore(flags);
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+ local_irq_restore_nort(flags);
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}
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struct user_struct *alloc_uid(kuid_t uid)
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--
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2.19.2
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