git://ftp.safe.ca / safe / jmp / linux-2.6 / commit
? search:
summary | shortlog | log | commit | commitdiff | tree
(parent: 596ae89) | patch
KVM: Calculate available entries in coalesced mmio ring
authorAvi Kivity <avi@redhat.com>
Thu, 4 Jun 2009 15:09:08 +0000 (18:09 +0300)
committerAvi Kivity <avi@redhat.com>
Thu, 10 Sep 2009 05:32:47 +0000 (08:32 +0300)
commit105f8d40a737564100dc7dcd1d94d4e15fada20e
treecf94ec090c8a8677acfd312cbdf262f0321363ebtree | snapshot
parent596ae895653fe336b9b5815ad2c175d22bb26f21commit | diff
KVM: Calculate available entries in coalesced mmio ring

Instead of checking whether we'll wrap around, calculate how many entries
are available, and check whether we have enough (just one) for the pending
mmio.

By itself, this doesn't change anything, but it paves the way for making
this function lockless.

Signed-off-by: Avi Kivity <avi@redhat.com>
virt/kvm/coalesced_mmio.c diff | blob | history
Full containers within linux kernel