kernel.git/kernel/irq/spurious.c, branch linux-2.6.37.y

genirq: Provide config option to disable deprecated code

2010-10-04T11:40:24Z

This option covers now the old chip functions and the irq_desc data fields which are moving to struct irq_data. More stuff will follow. Pretty handy for testing a conversion, whether something broke or not. Signed-off-by: Thomas Gleixner Reviewed-by: Ingo Molnar

genirq: Provide compat handling for chip->disable()/shutdown()

2010-10-04T10:43:43Z

Wrap the old chip functions disable() and shutdown() until the migration is complete and the old chip functions are removed. Signed-off-by: Thomas Gleixner Cc: Peter Zijlstra LKML-Reference: <20100927121842.532070631@linutronix.de> Reviewed-by: H. Peter Anvin Reviewed-by: Ingo Molnar

genirq: Convert core code to irq_data

2010-10-04T10:36:26Z

Convert all references in the core code to orq, chip, handler_data, chip_data, msi_desc, affinity to irq_data.* Signed-off-by: Thomas Gleixner Reviewed-by: Ingo Molnar

genirq: Convert irq_desc.lock to raw_spinlock

2009-12-14T22:55:33Z

Convert locks which cannot be sleeping locks in preempt-rt to raw_spinlocks. Signed-off-by: Thomas Gleixner Acked-by: Peter Zijlstra Acked-by: Ingo Molnar

Merge branch 'for-next' into for-linus

2009-12-07T17:36:35Z

Conflicts: kernel/irq/chip.c

Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

2009-12-05T17:53:08Z

* 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: genirq: Fix spurious irq seqfile conversion genirq: switch /proc/irq/*/spurious to seq_file irq: Do not attempt to create subdirectories if /proc/irq/ failed irq: Remove unused debug_poll_all_shared_irqs() irq: Fix docbook comments irq: trivial: Fix typo in comment for #endif

tree-wide: fix typos "couter" -> "counter"

2009-12-04T14:39:51Z

This patch was generated by git grep -E -i -l 'couter' | xargs -r perl -p -i -e 's/couter/counter/' Signed-off-by: Uwe Kleine-König Signed-off-by: Jiri Kosina

genirq: try_one_irq() must be called with irq disabled

2009-11-07T20:44:45Z

Prarit reported: ================================= [ INFO: inconsistent lock state ] 2.6.32-rc5 #1 --------------------------------- inconsistent {IN-HARDIRQ-W} -> {HARDIRQ-ON-W} usage. swapper/0 [HC0[0]:SC1[1]:HE1:SE0] takes: (&irq_desc_lock_class){?.-...}, at: [] try_one_irq+0x32/0x138 {IN-HARDIRQ-W} state was registered at: [] __lock_acquire+0x2fc/0xd5d [] lock_acquire+0xf3/0x12d [] _spin_lock+0x40/0x89 [] handle_level_irq+0x30/0x105 [] handle_irq+0x95/0xb7 [] do_IRQ+0x6a/0xe0 [] ret_from_intr+0x0/0x16 irq event stamp: 195096 hardirqs last enabled at (195096): [] _spin_unlock_irq+0x3a/0x5c hardirqs last disabled at (195095): [] _spin_lock_irq+0x29/0x95 softirqs last enabled at (195088): [] __do_softirq+0x1c1/0x1ef softirqs last disabled at (195093): [] call_softirq+0x1c/0x30 other info that might help us debug this: 1 lock held by swapper/0: #0: (kernel/irq/spurious.c:21){+.-...}, at: [] run_timer_softirq+0x1a9/0x315 stack backtrace: Pid: 0, comm: swapper Not tainted 2.6.32-rc5 #1 Call Trace: [] valid_state+0x187/0x1ae [] mark_lock+0x129/0x253 [] __lock_acquire+0x370/0xd5d [] lock_acquire+0xf3/0x12d [] _spin_lock+0x40/0x89 [] try_one_irq+0x32/0x138 [] poll_all_shared_irqs+0x41/0x6d [] poll_spurious_irqs+0x1c/0x49 [] run_timer_softirq+0x239/0x315 [] __do_softirq+0x102/0x1ef [] call_softirq+0x1c/0x30 [] do_softirq+0x59/0xca [] irq_exit+0x58/0xae [] smp_apic_timer_interrupt+0x94/0xba [] apic_timer_interrupt+0x13/0x20 The reason is that try_one_irq() is called from hardirq context with interrupts disabled and from softirq context (poll_all_shared_irqs()) with interrupts enabled. Disable interrupts before calling it from poll_all_shared_irqs(). Reported-and-tested-by: Prarit Bhargava Signed-off-by: Yong Zhang LKML-Reference: <1257563773-4620-1-git-send-email-yong.zhang0@gmail.com> Signed-off-by: Thomas Gleixner

irq: Remove unused debug_poll_all_shared_irqs()

2009-11-04T13:22:21Z

commit 74296a8ed added this function for debug purposes, but it was never used for anything. Remove it. Signed-off-by: Thomas Gleixner

irq: Clean up by removing irqfixup MODULE_PARM_DESC()

2009-08-04T15:00:11Z

It's wrong (the parm takes no arguments) and compile-time wiped away anyway (due to !MODULE). Signed-off-by: Jiri Slaby LKML-Reference: <1248991326-26267-1-git-send-email-jirislaby@gmail.com> Signed-off-by: Ingo Molnar