From 40b1f4e5113eafc5e84f2ba86822df66087fcb25 Mon Sep 17 00:00:00 2001
From: Michael Neuling <mikey@neuling.org>
Date: Thu, 22 Oct 2009 14:39:28 +1100
Subject: irq: trivial: Fix typo in comment for #endif
The comment suggests this #endif is CONFIG_X86 but it's really
CONFIG_TRACE_IRQFLAGS_SUPPORT
Signed-off-by: Michael Neuling <mikey@neuling.org>
Cc: michael@ellerman.id.au
LKML-Reference: <18191.1256182768@neuling.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
include/linux/irqflags.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/linux/irqflags.h b/include/linux/irqflags.h
index b02a3f1d46a..006bf45eae3 100644
--- a/include/linux/irqflags.h
+++ b/include/linux/irqflags.h
@@ -124,6 +124,6 @@
typecheck(unsigned long, flags); \
raw_irqs_disabled_flags(flags); \
})
-#endif /* CONFIG_X86 */
+#endif /* CONFIG_TRACE_IRQFLAGS_SUPPORT */
#endif
--
cgit
From 24b26d4211130b6455692804c14d537158855cd7 Mon Sep 17 00:00:00 2001
From: Liuweni <qingshenlwy@gmail.com>
Date: Wed, 4 Nov 2009 20:11:05 +0800
Subject: irq: Fix docbook comments
Fix docbook comments to match the actual function names
(set_irq_msi, handle_percpu_irq).
Signed-off-by: Liuwenyi <qingshenlwy@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
kernel/irq/chip.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c
index c1660194d11..ba566c261ad 100644
--- a/kernel/irq/chip.c
+++ b/kernel/irq/chip.c
@@ -166,11 +166,11 @@ int set_irq_data(unsigned int irq, void *data)
EXPORT_SYMBOL(set_irq_data);
/**
- * set_irq_data - set irq type data for an irq
+ * set_irq_msi - set MSI descriptor data for an irq
* @irq: Interrupt number
* @entry: Pointer to MSI descriptor data
*
- * Set the hardware irq controller data for an irq
+ * Set the MSI descriptor entry for an irq
*/
int set_irq_msi(unsigned int irq, struct msi_desc *entry)
{
@@ -590,7 +590,7 @@ out_unlock:
}
/**
- * handle_percpu_IRQ - Per CPU local irq handler
+ * handle_percpu_irq - Per CPU local irq handler
* @irq: the interrupt number
* @desc: the interrupt description structure for this irq
*
--
cgit
From 663e69592856df53ef52969482ef413a96bc4e06 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 4 Nov 2009 14:22:21 +0100
Subject: irq: Remove unused debug_poll_all_shared_irqs()
commit 74296a8ed added this function for debug purposes, but it was
never used for anything. Remove it.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
include/linux/interrupt.h | 6 ------
kernel/irq/spurious.c | 14 +-------------
2 files changed, 1 insertion(+), 19 deletions(-)
diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h
index 7ca72b74eec..75f3f00ac1e 100644
--- a/include/linux/interrupt.h
+++ b/include/linux/interrupt.h
@@ -603,12 +603,6 @@ static inline void init_irq_proc(void)
}
#endif
-#if defined(CONFIG_GENERIC_HARDIRQS) && defined(CONFIG_DEBUG_SHIRQ)
-extern void debug_poll_all_shared_irqs(void);
-#else
-static inline void debug_poll_all_shared_irqs(void) { }
-#endif
-
struct seq_file;
int show_interrupts(struct seq_file *p, void *v);
diff --git a/kernel/irq/spurious.c b/kernel/irq/spurious.c
index 114e704760f..8996b98f9eb 100644
--- a/kernel/irq/spurious.c
+++ b/kernel/irq/spurious.c
@@ -104,7 +104,7 @@ static int misrouted_irq(int irq)
return ok;
}
-static void poll_all_shared_irqs(void)
+static void poll_spurious_irqs(unsigned long dummy)
{
struct irq_desc *desc;
int i;
@@ -123,23 +123,11 @@ static void poll_all_shared_irqs(void)
try_one_irq(i, desc);
}
-}
-
-static void poll_spurious_irqs(unsigned long dummy)
-{
- poll_all_shared_irqs();
mod_timer(&poll_spurious_irq_timer,
jiffies + POLL_SPURIOUS_IRQ_INTERVAL);
}
-#ifdef CONFIG_DEBUG_SHIRQ
-void debug_poll_all_shared_irqs(void)
-{
- poll_all_shared_irqs();
-}
-#endif
-
/*
* If 99,900 of the previous 100,000 interrupts have not been handled
* then assume that the IRQ is stuck in some manner. Drop a diagnostic
--
cgit
From c82a43d40b93200a10a9fec0a489791e65e135ca Mon Sep 17 00:00:00 2001
From: Cyrill Gorcunov <gorcunov@openvz.org>
Date: Mon, 26 Oct 2009 23:28:11 +0300
Subject: irq: Do not attempt to create subdirectories if /proc/irq/<irq>
failed
If a parent directory (ie /proc/irq/<irq>) could not be created
we should not attempt to create subdirectories. Otherwise it
would lead that "smp_affinity" and "spurious" entries are may be
registered under /proc root instead of a proper place.
Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Yinghai Lu <yinghai@kernel.org>
LKML-Reference: <20091026202811.GD5321@lenovo>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
kernel/irq/proc.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/kernel/irq/proc.c b/kernel/irq/proc.c
index 692363dd591..dfef5b9f384 100644
--- a/kernel/irq/proc.c
+++ b/kernel/irq/proc.c
@@ -214,6 +214,8 @@ void register_irq_proc(unsigned int irq, struct irq_desc *desc)
/* create /proc/irq/1234 */
desc->dir = proc_mkdir(name, root_irq_dir);
+ if (!desc->dir)
+ return;
#ifdef CONFIG_SMP
/* create /proc/irq/<irq>/smp_affinity */
--
cgit
From a1afb6371bb5341057056194d1168753f6d77242 Mon Sep 17 00:00:00 2001
From: Alexey Dobriyan <adobriyan@gmail.com>
Date: Fri, 28 Aug 2009 22:19:33 +0400
Subject: genirq: switch /proc/irq/*/spurious to seq_file
[ tglx: compacted it a bit ]
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
LKML-Reference: <20090828181743.GA14050@x200.localdomain>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
kernel/irq/proc.c | 36 +++++++++++++++++++++---------------
1 file changed, 21 insertions(+), 15 deletions(-)
diff --git a/kernel/irq/proc.c b/kernel/irq/proc.c
index dfef5b9f384..4e47f11da6a 100644
--- a/kernel/irq/proc.c
+++ b/kernel/irq/proc.c
@@ -148,18 +148,28 @@ static const struct file_operations default_affinity_proc_fops = {
};
#endif
-static int irq_spurious_read(char *page, char **start, off_t off,
- int count, int *eof, void *data)
+static int irq_spurious_proc_show(struct seq_file *m, void *v)
{
- struct irq_desc *desc = irq_to_desc((long) data);
- return sprintf(page, "count %u\n"
- "unhandled %u\n"
- "last_unhandled %u ms\n",
- desc->irq_count,
- desc->irqs_unhandled,
- jiffies_to_msecs(desc->last_unhandled));
+ struct irq_desc *desc = irq_to_desc((long) m->private);
+
+ seq_printf(m, "count %u\n" "unhandled %u\n" "last_unhandled %u ms\n",
+ desc->irq_count, desc->irqs_unhandled,
+ jiffies_to_msecs(desc->last_unhandled));
+ return 0;
+}
+
+static int irq_spurious_proc_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, irq_spurious_proc_show, NULL);
}
+static const struct file_operations irq_spurious_proc_fops = {
+ .open = irq_spurious_proc_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
#define MAX_NAMELEN 128
static int name_unique(unsigned int irq, struct irqaction *new_action)
@@ -204,7 +214,6 @@ void register_handler_proc(unsigned int irq, struct irqaction *action)
void register_irq_proc(unsigned int irq, struct irq_desc *desc)
{
char name [MAX_NAMELEN];
- struct proc_dir_entry *entry;
if (!root_irq_dir || (desc->chip == &no_irq_chip) || desc->dir)
return;
@@ -223,11 +232,8 @@ void register_irq_proc(unsigned int irq, struct irq_desc *desc)
&irq_affinity_proc_fops, (void *)(long)irq);
#endif
- entry = create_proc_entry("spurious", 0444, desc->dir);
- if (entry) {
- entry->data = (void *)(long)irq;
- entry->read_proc = irq_spurious_read;
- }
+ proc_create_data("spurious", 0444, desc->dir,
+ &irq_spurious_proc_fops, (void *)(long)irq);
}
#undef MAX_NAMELEN
--
cgit
From 34769945f7cd9ab470413ffe64426e3ad069f49e Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Fri, 20 Nov 2009 11:46:21 +0100
Subject: genirq: Fix spurious irq seqfile conversion
single_open data argument must be PDE(inode)->data instead of NULL
otherwise seq_file->private is always NULL and we always read the
spurious data of irq 0.
Reported-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
kernel/irq/proc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/irq/proc.c b/kernel/irq/proc.c
index 4e47f11da6a..0832145fea9 100644
--- a/kernel/irq/proc.c
+++ b/kernel/irq/proc.c
@@ -136,7 +136,7 @@ out:
static int default_affinity_open(struct inode *inode, struct file *file)
{
- return single_open(file, default_affinity_show, NULL);
+ return single_open(file, default_affinity_show, PDE(inode)->data);
}
static const struct file_operations default_affinity_proc_fops = {
--
cgit