From: Thomas Gleixner <tglx@linutronix.de>
To: LKML <linux-kernel@vger.kernel.org>
Cc: linux-arch@vger.kernel.org, Linus Torvalds <torvalds@osdl.org>,
Andrew Morton <akpm@linux-foundation.org>,
x86@kernel.org, Peter Zijlstra <peterz@infradead.org>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Paul Mundt <lethal@linux-sh.org>,
Russell King <linux@arm.linux.org.uk>,
David Woodhouse <dwmw2@infradead.org>,
Jesse Barnes <jbarnes@virtuousgeek.org>,
Yinghai Lu <yinghai@kernel.org>,
Grant Likely <grant.likely@secretlab.ca>,
"Eric W. Biederman" <ebiederm@xmission.com>
Subject: [patch 43/47] x86: xen: Sanitise sparse_irq handling
Date: Thu, 30 Sep 2010 23:18:14 -0000 [thread overview]
Message-ID: <20100930221742.717242572@linutronix.de> (raw)
In-Reply-To: 20100930221351.682772535@linutronix.de
[-- Attachment #1: xen-sanitise-sparse.patch --]
[-- Type: text/plain, Size: 1617 bytes --]
There seems to be more cleanups possible, but that's left to the xen
experts :)
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
drivers/xen/events.c | 23 +++++++++++------------
1 file changed, 11 insertions(+), 12 deletions(-)
Index: linux-2.6-tip/drivers/xen/events.c
===================================================================
--- linux-2.6-tip.orig/drivers/xen/events.c
+++ linux-2.6-tip/drivers/xen/events.c
@@ -338,30 +338,29 @@ static void unmask_evtchn(int port)
static int find_unbound_irq(void)
{
- int irq;
- struct irq_desc *desc;
+ struct irq_data *data;
+ int irq, res;
for (irq = 0; irq < nr_irqs; irq++) {
- desc = irq_to_desc(irq);
+ data = irq_get_irq_data(irq);
/* only 0->15 have init'd desc; handle irq > 16 */
- if (desc == NULL)
+ if (!data)
break;
- if (desc->chip == &no_irq_chip)
+ if (data->chip == &no_irq_chip)
break;
- if (desc->chip != &xen_dynamic_chip)
+ if (data->chip != &xen_dynamic_chip)
continue;
if (irq_info[irq].type == IRQT_UNBOUND)
- break;
+ return irq;
}
if (irq == nr_irqs)
panic("No available IRQ to bind to: increase nr_irqs!\n");
- desc = irq_to_desc_alloc_node(irq, 0);
- if (WARN_ON(desc == NULL))
- return -1;
+ res = irq_alloc_desc_at(irq, 0);
- dynamic_irq_init_keep_chip_data(irq);
+ if (WARN_ON(res != irq))
+ return -1;
return irq;
}
@@ -495,7 +494,7 @@ static void unbind_from_irq(unsigned int
if (irq_info[irq].type != IRQT_UNBOUND) {
irq_info[irq] = mk_unbound_info();
- dynamic_irq_cleanup(irq);
+ irq_free_desc(irq);
}
spin_unlock(&irq_mapping_update_lock);
next prev parent reply other threads:[~2010-09-30 23:18 UTC|newest]
Thread overview: 111+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-30 23:14 [patch 00/47] Sparse irq rework Thomas Gleixner
2010-09-30 23:14 ` [patch 01/47] x86: Plug memory leak in sparse irq Thomas Gleixner
2010-09-30 23:14 ` [patch 02/47] x86: Hpet: Fix bogus error check in hpet_assign_irq() Thomas Gleixner
2010-09-30 23:14 ` [patch 03/47] genirq: Provide status modifier Thomas Gleixner
2010-09-30 23:14 ` [patch 04/47] arm: Use irq " Thomas Gleixner
2010-09-30 23:14 ` [patch 05/47] genirq-sanitize-irq-data-accessors.patch Thomas Gleixner
2010-09-30 23:15 ` [patch 06/47] genirq: Distangle kernel/irq/handle.c Thomas Gleixner
2010-09-30 23:15 ` [patch 07/47] genirq: Remove early_init_irq_lock_class() Thomas Gleixner
2010-09-30 23:15 ` [patch 08/47] genirq: Move core only inlines to kernel/irq Thomas Gleixner
2010-09-30 23:15 ` [patch 09/47] isdn: hisax: Replace the bogus access to irq stats Thomas Gleixner
2010-09-30 23:15 ` [patch 10/47] genirq: Remove export of kstat_irqs_cpu Thomas Gleixner
2010-09-30 23:15 ` [patch 11/47] genirq: Provide default irq init flags Thomas Gleixner
2010-09-30 23:15 ` [patch 12/47] arm: Use ARCH_IRQ_INIT_FLAGS Thomas Gleixner
2010-09-30 23:15 ` [patch 13/47] powerpc: " Thomas Gleixner
2010-09-30 23:15 ` [patch 14/47] genirq: Implement a sane sparse_irq allocator Thomas Gleixner
2010-10-01 5:28 ` Yinghai Lu
2010-10-01 20:36 ` Thomas Gleixner
2010-09-30 23:15 ` [patch 15/47] genirq: Prepare proc for real sparse irq support Thomas Gleixner
2010-09-30 23:15 ` [patch 16/47] genirq: Implement sane enumeration Thomas Gleixner
2010-10-03 10:55 ` Grant Likely
2010-09-30 23:15 ` [patch 17/47] genirq-update-kerneldoc.patch Thomas Gleixner
2010-09-30 23:16 ` [patch 18/47] genirq: Use sane sparse allocator Thomas Gleixner
2010-09-30 23:16 ` [patch 19/47] genirq: Query arch for number of early descriptors Thomas Gleixner
2010-09-30 23:16 ` [patch 20/47] x86: Remove useless reinitialization of irq descriptors Thomas Gleixner
2010-10-03 15:21 ` Eric W. Biederman
2010-10-03 18:26 ` Thomas Gleixner
2010-09-30 23:16 ` [patch 21/47] x86: Sanitize apb timer interrupt handling Thomas Gleixner
2010-09-30 23:16 ` [patch 22/47] x86: lguest: Convert to new irq chip functions Thomas Gleixner
2010-09-30 23:16 ` [patch 23/47] x86: Cleanup visws interrupt handling Thomas Gleixner
2010-09-30 23:16 ` [patch 24/47] x86: i8259: Convert to new irq_chip functions Thomas Gleixner
2010-09-30 23:16 ` [patch 25/47] x86: Cleanup io_apic Thomas Gleixner
2010-09-30 23:16 ` [patch 26/47] x86: io_apic: Convert startup to new irq_chip function Thomas Gleixner
2010-09-30 23:16 ` [patch 27/47] x86: ioapic: Convert mask " Thomas Gleixner
2010-09-30 23:16 ` [patch 28/47] x86: ioapic/hpet: Convert to new chip functions Thomas Gleixner
2010-09-30 23:16 ` [patch 29/47] pci: Convert msi to new irq_chip functions Thomas Gleixner
2010-10-11 17:09 ` Jesse Barnes
2010-09-30 23:16 ` [patch 30/47] dmar: Convert to new irq chip functions Thomas Gleixner
2010-09-30 23:17 ` [patch 31/47] ht: Convert to new irq_chip functions Thomas Gleixner
2010-09-30 23:17 ` [patch 32/47] x86: ioapic: Clean up the direct access to irq_desc Thomas Gleixner
2010-09-30 23:17 ` [patch 33/47] pci: Cleanup the irq_desc mess in msi Thomas Gleixner
2010-10-11 17:08 ` Jesse Barnes
2010-09-30 23:17 ` [patch 34/47] x86: ioapic: Convert irq affinity to new chip functions Thomas Gleixner
2010-09-30 23:17 ` [patch 35/47] x86: ioapic: Cleanup some more Thomas Gleixner
2010-09-30 23:17 ` [patch 36/47] x86: ioapic: Cleanup sparse irq code Thomas Gleixner
2010-09-30 23:17 ` [patch 37/47] x86: uv: Clean up the direct access to irq_desc Thomas Gleixner
2010-09-30 23:17 ` [patch 38/47] x86: Use sane enumeration Thomas Gleixner
2010-09-30 23:17 ` [patch 39/47] genirq: Remove arch_init_chip_data() Thomas Gleixner
2010-09-30 23:17 ` [patch 40/47] genirq: Sanitize dynamic irq handling Thomas Gleixner
2010-10-01 5:47 ` Yinghai Lu
2010-09-30 23:18 ` [patch 41/47] arm: davinci: Cleanup irq_desc access Thomas Gleixner
2010-09-30 23:18 ` [patch 42/47] genirq: Remove the now unused sparse irq leftovers Thomas Gleixner
2010-09-30 23:18 ` Thomas Gleixner [this message]
2010-09-30 23:18 ` [patch 44/47] sh: Sanitize sparse irq Thomas Gleixner
2010-09-30 23:18 ` [patch 45/47] x86: lguest: Use new irq allocator Thomas Gleixner
2010-09-30 23:18 ` [patch 46/47] powerpc: " Thomas Gleixner
2010-10-01 0:42 ` Benjamin Herrenschmidt
2010-10-01 13:07 ` Thomas Gleixner
2010-10-01 20:46 ` Benjamin Herrenschmidt
2010-10-01 21:11 ` Grant Likely
2010-10-01 21:17 ` Benjamin Herrenschmidt
2010-10-03 16:53 ` Eric W. Biederman
2010-10-03 18:34 ` Thomas Gleixner
2010-10-03 20:04 ` Thomas Gleixner
2010-10-03 22:54 ` Benjamin Herrenschmidt
2010-10-04 0:15 ` Eric W. Biederman
2010-10-04 0:37 ` Benjamin Herrenschmidt
2010-10-04 16:46 ` Grant Likely
2010-09-30 23:18 ` [patch 47/47] genirq: Remove the old sparse irq allocator function Thomas Gleixner
2010-10-01 3:32 ` [patch 00/47] Sparse irq rework Linus Torvalds
2010-10-01 5:54 ` Yinghai Lu
2010-10-01 20:35 ` Thomas Gleixner
2010-10-03 11:23 ` Grant Likely
2010-10-03 11:29 ` Russell King - ARM Linux
2010-10-03 11:57 ` Grant Likely
2010-10-03 13:48 ` Thomas Gleixner
2010-10-05 10:22 ` Thomas Gleixner
2010-10-06 22:45 ` Yinghai Lu
2010-10-06 22:52 ` Thomas Gleixner
2010-10-06 23:37 ` Yinghai Lu
2010-10-07 0:16 ` Yinghai Lu
2010-10-07 4:01 ` Thomas Gleixner
2010-10-07 4:38 ` Yinghai Lu
2010-10-08 21:50 ` Thomas Gleixner
2010-10-08 21:54 ` Thomas Gleixner
2010-10-09 4:26 ` Yinghai Lu
2010-10-09 5:44 ` Yinghai Lu
2010-10-09 6:34 ` Thomas Gleixner
2010-10-09 7:08 ` Yinghai Lu
2010-10-09 12:08 ` Thomas Gleixner
2010-10-10 9:32 ` Thomas Gleixner
2010-10-10 13:30 ` Anca Emanuel
2010-10-11 2:20 ` Yinghai Lu
2010-10-11 3:50 ` Yinghai Lu
2010-10-11 8:16 ` Thomas Gleixner
2010-10-11 11:34 ` Benjamin Herrenschmidt
2010-10-11 16:19 ` Yinghai Lu
2010-10-12 20:23 ` [tip:irq/core] x86: Don't setup ioapic irq for sci twice tip-bot for Yinghai Lu
2010-10-09 6:10 ` [patch 00/47] Sparse irq rework Thomas Gleixner
2010-10-09 7:03 ` Yinghai Lu
2010-10-09 12:12 ` Thomas Gleixner
2010-10-10 2:32 ` Yinghai Lu
2010-10-10 5:11 ` Yinghai Lu
2010-10-10 8:20 ` Thomas Gleixner
2010-10-03 16:41 ` Eric W. Biederman
2010-10-03 19:16 ` Thomas Gleixner
2010-10-03 22:57 ` Benjamin Herrenschmidt
2010-10-04 16:31 ` Grant Likely
2010-10-04 0:49 ` Eric W. Biederman
2010-10-04 8:05 ` Thomas Gleixner
2010-10-04 1:13 ` Eric W. Biederman
2010-10-04 6:36 ` Ingo Molnar
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