Avi Kivity wrote: > On 07/01/2009 07:09 PM, Gregory Haskins wrote: >> eventfd currently emits a POLLHUP wakeup on f_ops->release() to >> generate a >> "release" callback. This lets eventfd clients know if the eventfd is >> about >> to go away and is very useful particularly for in-kernel clients. >> However, >> until recently it is not possible to use this feature of eventfd in a >> race-free way. >> >> This patch utilizes a new eventfd interface to rectify the problem. >> It also >> converts the eventfd POLLHUP generation code to use the locked variant >> of wakeup. >> >> Signed-off-by: Gregory Haskins<ghaskins@xxxxxxxxxx> >> CC: Davide Libenzi<davidel@xxxxxxxxxxxxxxx> >> --- >> >> fs/eventfd.c | 7 -- >> include/linux/kvm_host.h | 5 + >> virt/kvm/eventfd.c | 187 >> ++++++++++++++++++++++++++++++++-------------- >> 3 files changed, 134 insertions(+), 65 deletions(-) >> > > > Please split the eventfd.c hunk into a separate patch. When preparing > the 2.6.32 submission, I'll fold that into the patch into its > antipatch and they'll disappear. > Ok, but note that that means I should probably split 1/3 back out into 1/5 (prepare), 2/5 (eventfd hunk), 3/5 (fix irqfd) again like I had in v7 so that the series is bisectable. Is that ok? -Greg
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