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From: John Kacur <jkacur@redhat.com>
To: Thomas Gleixner <tglx@linutronix.de>,
	lkml <linux-kernel@vger.kernel.org>, Ingo Molnar <mingo@elte.hu>
Cc: Clark Williams <williams@redhat.com>, John Kacur <jkacur@redhat.com>
Subject: [PATCH 20/26] proportions: Convert spinlocks to raw_spinlocks.
Date: Mon, 11 Jan 2010 22:26:50 +0100	[thread overview]
Message-ID: <1263245216-14754-21-git-send-email-jkacur@redhat.com> (raw)
In-Reply-To: <1263245216-14754-20-git-send-email-jkacur@redhat.com>

Convert locks which cannot be sleeping locks in preempt-rt to
raw_spinlocks

See also: 0fc7741cfd53c5c5ca710e075e05808e1bf9be71

Signed-off-by: John Kacur <jkacur@redhat.com>
---
 include/linux/proportions.h |    6 +++---
 lib/proportions.c           |   12 ++++++------
 2 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/include/linux/proportions.h b/include/linux/proportions.h
index cf793bb..ef35bb7 100644
--- a/include/linux/proportions.h
+++ b/include/linux/proportions.h
@@ -58,7 +58,7 @@ struct prop_local_percpu {
 	 */
 	int shift;
 	unsigned long period;
-	spinlock_t lock;		/* protect the snapshot state */
+	raw_spinlock_t lock;		/* protect the snapshot state */
 };
 
 int prop_local_init_percpu(struct prop_local_percpu *pl);
@@ -106,11 +106,11 @@ struct prop_local_single {
 	 */
 	unsigned long period;
 	int shift;
-	spinlock_t lock;		/* protect the snapshot state */
+	raw_spinlock_t lock;		/* protect the snapshot state */
 };
 
 #define INIT_PROP_LOCAL_SINGLE(name)			\
-{	.lock = __SPIN_LOCK_UNLOCKED(name.lock),	\
+{	.lock = __RAW_SPIN_LOCK_UNLOCKED(name.lock),	\
 }
 
 int prop_local_init_single(struct prop_local_single *pl);
diff --git a/lib/proportions.c b/lib/proportions.c
index d50746a..05df848 100644
--- a/lib/proportions.c
+++ b/lib/proportions.c
@@ -190,7 +190,7 @@ prop_adjust_shift(int *pl_shift, unsigned long *pl_period, int new_shift)
 
 int prop_local_init_percpu(struct prop_local_percpu *pl)
 {
-	spin_lock_init(&pl->lock);
+	raw_spin_lock_init(&pl->lock);
 	pl->shift = 0;
 	pl->period = 0;
 	return percpu_counter_init(&pl->events, 0);
@@ -226,7 +226,7 @@ void prop_norm_percpu(struct prop_global *pg, struct prop_local_percpu *pl)
 	if (pl->period == global_period)
 		return;
 
-	spin_lock_irqsave(&pl->lock, flags);
+	raw_spin_lock_irqsave(&pl->lock, flags);
 	prop_adjust_shift(&pl->shift, &pl->period, pg->shift);
 
 	/*
@@ -247,7 +247,7 @@ void prop_norm_percpu(struct prop_global *pg, struct prop_local_percpu *pl)
 		percpu_counter_set(&pl->events, 0);
 
 	pl->period = global_period;
-	spin_unlock_irqrestore(&pl->lock, flags);
+	raw_spin_unlock_irqrestore(&pl->lock, flags);
 }
 
 /*
@@ -324,7 +324,7 @@ void prop_fraction_percpu(struct prop_descriptor *pd,
 
 int prop_local_init_single(struct prop_local_single *pl)
 {
-	spin_lock_init(&pl->lock);
+	raw_spin_lock_init(&pl->lock);
 	pl->shift = 0;
 	pl->period = 0;
 	pl->events = 0;
@@ -356,7 +356,7 @@ void prop_norm_single(struct prop_global *pg, struct prop_local_single *pl)
 	if (pl->period == global_period)
 		return;
 
-	spin_lock_irqsave(&pl->lock, flags);
+	raw_spin_lock_irqsave(&pl->lock, flags);
 	prop_adjust_shift(&pl->shift, &pl->period, pg->shift);
 	/*
 	 * For each missed period, we half the local counter.
@@ -367,7 +367,7 @@ void prop_norm_single(struct prop_global *pg, struct prop_local_single *pl)
 	else
 		pl->events = 0;
 	pl->period = global_period;
-	spin_unlock_irqrestore(&pl->lock, flags);
+	raw_spin_unlock_irqrestore(&pl->lock, flags);
 }
 
 /*
-- 
1.6.5.2


  reply	other threads:[~2010-01-11 21:29 UTC|newest]

Thread overview: 38+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-01-11 21:26 [PATCH 00/26] Convert locks that can't sleep in -rt to raw_spinlock John Kacur
2010-01-11 21:26 ` [PATCH 01/26] xtime_lock: Convert atomic_seqlock to raw_seqlock, fix up all users John Kacur
2010-01-11 21:26   ` [PATCH 02/26] seqlock: Create raw_seqlock John Kacur
2010-01-11 21:26     ` [PATCH 03/26] x86: Convert tlbstate_lock to raw_spinlock John Kacur
2010-01-11 21:26       ` [PATCH 04/26] sched: Convert thread_group_cputimer lock " John Kacur
2010-01-11 21:26         ` [PATCH 05/26] x86: Convert ioapic_lock and vector_lock to raw_spinlocks John Kacur
2010-01-11 21:26           ` [PATCH 06/26] x86: Convert i8259A_lock to raw_spinlock John Kacur
2010-01-11 21:26             ` [PATCH 07/26] x86: Convert pci_config_lock " John Kacur
2010-01-11 21:26               ` [PATCH 08/26] i8253: Convert i8253_lock " John Kacur
2010-01-11 21:26                 ` [PATCH 09/26] x86: Convert set_atomicity_lock " John Kacur
2010-01-11 21:26                   ` [PATCH 10/26] ACPI: Convert c3_lock " John Kacur
2010-01-11 21:26                     ` [PATCH 11/26] rtmutex: Convert wait_lock and pi_lock " John Kacur
2010-01-11 21:26                       ` [PATCH 12/26] printk: Convert lock " John Kacur
2010-01-11 21:26                         ` [PATCH 13/26] genirq: Convert locks to raw_spinlocks John Kacur
2010-01-11 21:26                           ` [PATCH 14/26] trace: Convert various locks to raw_spinlock John Kacur
2010-01-11 21:26                             ` [PATCH 15/26] clocksource: Convert watchdog_lock " John Kacur
2010-01-11 21:26                               ` [PATCH 16/26] timer_stats: Convert to raw_spinlocks John Kacur
2010-01-11 21:26                                 ` [PATCH 17/26] x86: kvm: Convert i8254/i8259 locks to raw_spinlock John Kacur
2010-01-11 21:26                                   ` [PATCH 18/26] x86 - nmi: Convert nmi_lock " John Kacur
2010-01-11 21:26                                     ` [PATCH 19/26] cgroups: Convert cgroups release_list_lock " John Kacur
2010-01-11 21:26                                       ` John Kacur [this message]
2010-01-11 21:26                                         ` [PATCH 21/26] percpu_counter: Convert " John Kacur
2010-01-11 21:26                                           ` [PATCH 22/26] oprofile: " John Kacur
2010-01-11 21:26                                             ` [PATCH 23/26] vgacon: Convert vga console lock " John Kacur
2010-01-11 21:26                                               ` [PATCH 24/26] pci-access: Convert pci_lock " John Kacur
2010-01-11 21:26                                                 ` [PATCH 25/26] kprobes: Convert to raw_spinlocks John Kacur
2010-01-11 21:26                                                   ` [PATCH 26/26] softlockup: " John Kacur
2010-01-12  3:54                                                   ` [PATCH 25/26] kprobes: " Frederic Weisbecker
2010-01-11 21:50                                       ` [PATCH 19/26] cgroups: Convert cgroups release_list_lock to raw_spinlock Paul Menage
2010-01-11 22:11                                         ` John Kacur
2010-01-12  3:39                             ` [PATCH 14/26] trace: Convert various locks " Frederic Weisbecker
2010-01-13 15:28                               ` Steven Rostedt
2010-01-13 15:36                                 ` John Kacur
2010-01-13 15:41                                   ` Steven Rostedt
2010-01-13 18:09                                     ` John Kacur
2010-01-17 13:00                                       ` Frederic Weisbecker
2010-01-12  3:24 ` [PATCH 00/26] Convert locks that can't sleep in -rt " Frederic Weisbecker
2010-01-12  3:49   ` Frederic Weisbecker

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