32 lines
968 B
Diff
32 lines
968 B
Diff
From 313a25fcfaaeb370d448fa8df2b42e5a5b2dc9f1 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: [069/254] core: Do not disable interrupts on RT in 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 71dd236..b831e51 100644
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--- a/kernel/user.c
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+++ b/kernel/user.c
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@@ -129,11 +129,11 @@ 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(struct user_namespace *ns, uid_t uid)
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