Re: [PATCH v2 1/2] KVM: MMIO: Lock coalesced device when checking for available entry

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On 07/18/2011 12:29 PM, Sasha Levin wrote:
>  Hmm.  This means we take the lock for every I/O, whether it hits
>  coalesced mmio or not.
>
>  We need to do the range check before taking the lock and the space check
>  after taking the lock.
>

I'll fix that.

Shouldn't the range check be also locked somehow? Currently it is
possible that a coalesced region was removed while we are checking the
ranges, and we won't issue a mmio exit as the host expects

It's "locked" using rcu.

--
error compiling committee.c: too many arguments to function

--
To unsubscribe from this list: send the line "unsubscribe kvm" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [KVM ARM]     [KVM ia64]     [KVM ppc]     [Virtualization Tools]     [Spice Development]     [Libvirt]     [Libvirt Users]     [Linux USB Devel]     [Linux Audio Users]     [Yosemite Questions]     [Linux Kernel]     [Linux SCSI]     [XFree86]
  Powered by Linux