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* pci: question about the life cycle of pci_dev and its parent pci_bus
@ 2012-08-23  5:24 Liu ping fan
  2012-08-24 14:30 ` Jiang Liu
  0 siblings, 1 reply; 3+ messages in thread
From: Liu ping fan @ 2012-08-23  5:24 UTC (permalink / raw)
  To: linux-pci; +Cc: linux-kernel, Scott Murray, Bjorn Helgaas

Hi,

I have a question about the life cycle of pci_dev and its parent pci_bus.
In pci_destroy_dev(), we remove the pci_dev from the bus_list, so
pci_dev is isolated from its parent pci_bus, and their life cycle are
independent too. But it seems that in pci_dev, we can still access the
pci_bus from the pointer pci_dev->bus.  To resolve such issue, I think
during the pci_dev removal,  there should be process to 1.prevent the
reader incoming 2. ensure the current reader has exit.  But can not
find them.

Could anyone tell me?

Thanx, pingfan

^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2012-08-27  1:54 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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2012-08-23  5:24 pci: question about the life cycle of pci_dev and its parent pci_bus Liu ping fan
2012-08-24 14:30 ` Jiang Liu
2012-08-27  1:54   ` Liu ping fan

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