Thomas Gleixner 425a5072dc genirq: Free irq_desc with rcu ...

The new VMD device driver needs to iterate over a list of
"demultiplexing" interrupts. Protecting that list with a lock is not
possible because the list is also required in code pathes which hold
irq descriptor lock. Therefor the demultiplexing interrupt handler
would create a lock inversion scenario if it calls a demux handler
with the list protection lock held.

A solution for this is to free the irq descriptor via RCU, so the
list can be walked with rcu read lock held.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Keith Busch <keith.busch@intel.com>

2015-12-14 10:03:46 +01:00

..

autoprobe.c

genirq: Handle pending irqs in irq_startup()

2012-02-15 11:56:59 +01:00

chip.c

genirq: Delay incrementing interrupt count if it's disabled/pending

2015-11-16 17:55:55 +01:00

cpuhotplug.c

genirq: Make the cpuhotplug migration code less noisy

2015-10-22 14:34:57 +02:00

debug.h

irq: hide debug macros so they don't collide with others.

2012-04-23 12:30:03 -04:00

devres.c

genirq: devres: Fix testing return value of request_any_context_irq()

2015-05-13 10:47:37 +02:00

dummychip.c

Merge branch 'linus' into irq/core

2015-06-05 22:25:01 +02:00

generic-chip.c

genirq: Add chip_[suspend|resume] PM support to irq_chip

2015-07-27 08:09:38 +02:00

handle.c

Merge branch 'linus' into irq/core

2015-10-13 19:00:14 +02:00

internals.h

genirq/PM: Restore system wake up from chained interrupts

2015-11-10 09:11:31 -05:00

irqdesc.c

genirq: Free irq_desc with rcu

2015-12-14 10:03:46 +01:00

irqdomain.c

irqdomain: Introduce irq_domain_create_hierarchy

2015-10-13 19:01:25 +02:00

Kconfig

genirq: Introduce generic irq migration for cpu hotunplug

2015-10-01 14:51:15 +02:00

Makefile

genirq: Introduce generic irq migration for cpu hotunplug

2015-10-01 14:51:15 +02:00

manage.c

genirq: Implement irq_percpu_is_enabled()

2015-12-08 12:53:29 +01:00

migration.c

genirq: Remove bogus restriction in irq_move_mask_irq()

2015-06-20 19:05:14 +02:00

msi.c

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

2015-11-03 14:40:01 -08:00

pm.c

Merge branches 'irq-urgent-for-linus' and 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2015-11-15 09:30:48 -08:00

proc.c

genirq/PM: Restore system wake up from chained interrupts

2015-11-10 09:11:31 -05:00

resend.c

genirq: Remove irq argument from irq flow handlers

2015-09-16 15:47:51 +02:00

settings.h

genirq: Add flag to force mask in disable_irq[_nosync]()

2015-10-11 11:33:42 +02:00

spurious.c

genirq: Remove the irq argument from note_interrupt()

2015-07-11 23:14:25 +02:00