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Ingo Molnar d378834840 [PATCH] lockdep: annotate ieee1394 skb-queue-head locking 
ieee1394 reuses the skb infrastructure of the networking code, and uses two
skb-head queues: ->pending_packet_queue and hpsbpkt_queue.  The latter is used
in the usual fashion: processed from a kernel thread.  The other one,
->pending_packet_queue is also processed from hardirq context (f.e.  in
hpsb_bus_reset()), which is not what the networking code usually does (which
completes from softirq or process context).  This locking assymetry can be
totally correct if done carefully, but it can also be dangerous if networking
helper functions are reused, which could assume traditional networking use.

It would probably be more robust to push this completion into a workqueue -
but technically the code can be 100% correct, and lockdep has to be taught
about it.  The solution is to split the ->pending_packet_queue skb-head->lock
class from the networking lock-class by using a private lock-validator key.

Has no effect on non-lockdep kernels.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cc: Stefan Richter <stefanr@s5r6.in-berlin.de>
Cc: Jody McIntyre <scjody@modernduck.com>
Cc: Ben Collins <bcollins@debian.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-03 15:27:08 -07:00
..
acorn [PATCH] irq-flags: misc drivers: Use the new IRQF_ constants 2006-07-02 13:58:50 -07:00
acpi [PATCH] irq-flags: misc drivers: Use the new IRQF_ constants 2006-07-02 13:58:50 -07:00
amba [PATCH] 64bit resource: fix up printks for resources in misc drivers 2006-06-27 09:23:59 -07:00
atm [PATCH] irq-flags: misc drivers: Use the new IRQF_ constants 2006-07-02 13:58:50 -07:00
base Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial 2006-06-30 15:39:30 -07:00
block [PATCH] lockdep: floppy.c irq release fix 2006-07-03 15:27:00 -07:00
bluetooth Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
cdrom [PATCH] irq-flags: misc drivers: Use the new IRQF_ constants 2006-07-02 13:58:50 -07:00
char [PATCH] lockdep: print all lock classes on SysRQ-D 2006-07-03 15:27:04 -07:00
clocksource [PATCH] GTOD: add scx200 HRT clocksource 2006-06-26 09:58:21 -07:00
connector [PATCH] connector-exports 2006-06-23 07:43:06 -07:00
cpufreq Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
crypto [CRYPTO] padlock: Rearrange context structure to reduce code size 2006-06-26 17:34:39 +10:00
dio
dma [PATCH] irq-flags: misc drivers: Use the new IRQF_ constants 2006-07-02 13:58:50 -07:00
edac [PATCH] EDAC: fix module names quoted in sysfs 2006-07-01 09:55:58 -07:00
eisa Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
fc4 [PATCH] irq-flags: misc drivers: Use the new IRQF_ constants 2006-07-02 13:58:50 -07:00
firmware Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
hwmon Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
i2c [PATCH] irq-flags: misc drivers: Use the new IRQF_ constants 2006-07-02 13:58:50 -07:00
ide [PATCH] irq-flags: ide: Use the new IRQF_ constants 2006-07-02 13:58:49 -07:00
ieee1394 [PATCH] lockdep: annotate ieee1394 skb-queue-head locking 2006-07-03 15:27:08 -07:00
infiniband [PATCH] irq-flags: misc drivers: Use the new IRQF_ constants 2006-07-02 13:58:50 -07:00
input [PATCH] lockdep: annotate serio 2006-07-03 15:27:07 -07:00
isdn [PATCH] irq-flags: isdn: Use the new IRQF_ constants 2006-07-02 13:58:50 -07:00
leds Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
macintosh [PATCH] irq-flags: misc drivers: Use the new IRQF_ constants 2006-07-02 13:58:50 -07:00
mca
md Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
media [PATCH] irq-flags: media: Use the new IRQF_ constants 2006-07-02 13:58:50 -07:00
message [PATCH] irq-flags: misc drivers: Use the new IRQF_ constants 2006-07-02 13:58:50 -07:00
mfd [PATCH] irq-flags: misc drivers: Use the new IRQF_ constants 2006-07-02 13:58:50 -07:00
misc [PATCH] irq-flags: misc drivers: Use the new IRQF_ constants 2006-07-02 13:58:50 -07:00
mmc Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-mmc 2006-07-02 16:35:07 -07:00
mtd Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
net [PATCH] irq-flags: drivers/net: Use the new IRQF_ constants 2006-07-02 13:58:51 -07:00
nubus Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
oprofile [PATCH] oprofile: convert from semaphores to mutexes 2006-06-25 10:01:04 -07:00
parisc [PATCH] irq-flags: PARISC: Use the new IRQF_ constants 2006-07-02 13:58:52 -07:00
parport [PATCH] irq-flags: misc drivers: Use the new IRQF_ constants 2006-07-02 13:58:50 -07:00
pci [PATCH] irq-flags: pci: Use the new IRQF_ constants 2006-07-02 13:58:52 -07:00
pcmcia Merge branch 'genirq' of master.kernel.org:/home/rmk/linux-2.6-arm 2006-07-02 15:07:45 -07:00
pnp [PATCH] PNPACPI: support shareable interrupts 2006-07-03 15:26:58 -07:00
rapidio Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
rtc [PATCH] irq-flags: misc drivers: Use the new IRQF_ constants 2006-07-02 13:58:50 -07:00
s390 [PATCH] lockdep: s390 turn validator off in machine-check handler 2006-07-03 15:27:05 -07:00
sbus [PATCH] irq-flags: misc drivers: Use the new IRQF_ constants 2006-07-02 13:58:50 -07:00
scsi [PATCH] irq-flags: scsi: Use the new IRQF_ constants 2006-07-02 13:58:53 -07:00
serial [PATCH] lockdep: annotate serial 2006-07-03 15:27:06 -07:00
sh
sn [PATCH] irq-flags: misc drivers: Use the new IRQF_ constants 2006-07-02 13:58:50 -07:00
spi Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
tc [PATCH] irq-flags: misc drivers: Use the new IRQF_ constants 2006-07-02 13:58:50 -07:00
telephony Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/devfs-2.6 2006-06-29 14:19:21 -07:00
usb [PATCH] lockdep: annotate i_mutex 2006-07-03 15:27:06 -07:00
video [PATCH] fbdev: Add framebuffer and display update module support for pnx4008 2006-07-03 15:26:59 -07:00
w1 [PATCH] connector-exports 2006-06-23 07:43:06 -07:00
zorro Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
Kconfig [I/OAT]: DMA memcpy subsystem 2006-06-17 21:18:43 -07:00
Makefile [PATCH] Time: i386 Clocksource Drivers 2006-06-26 09:58:21 -07:00