Re: [Qemu-block] [PATCH for-2.7 v2 00/17] block: Lock images when opening

[Fam Zheng]

On Mon, 04/18 10:53, Daniel P. Berrange wrote:
> If you want todo locks inside of QEMU, you really can't rely
> on delegating handling to each individual block driver instance.
> You need to have a process global registry of which files you have
> already locked, and check against that registry before even
> attempting to open any file that might correspond to a disk image.
> This registry needs to canonicalize the file path too, to allow
> for possibility of QEMU being given differen paths to the same
> file.

Yes, you're completely right. Thank you for bringing up it again and so
clearly. I'll revise the code.

Fam