Hi, I couldn't see this in the mainline codebase.
Wondering if something else needs to be done in this patch-set. Thanks and Regards gautham. On Tue, Jun 22, 2010 at 04:48:08PM +0530, Gautham R Shenoy wrote: > Hi, > > This is the v5 of the patch-series to have a generic asynchronous task > offloading framework (called threadlets) within qemu. > > V4 can be found here: > http://lists.gnu.org/archive/html/qemu-devel/2010-06/msg02152.html > > Changes from V4: > ===================================================================== > - Updated the Makefile to make the object files depend on CONFIG_POSIX. > > - Did away with the pthread_barrier_init() and pthread_barrier_wait(). > > - Did away with flush_threadlet_queue() helper. > > - Fixed the attribution in copyright, helper names. > > - Fixed the idle-thread-exit logic. > > - Added documentation in docs/ > > Description > ===================================================================== > This patch series decouples the asynchronous threading framework > implementation from posix-aio-compat.c to implement a generic asynchronous > task offloading threading framework called threadlets which can be used > by other subsystems within QEMU. > > Currently within QEMU, the AIO subsystem (paio) creates a bunch of > asynchronous threads to offload any blocking operations so that > the vcpu threads and the IO thread can go back to servicing any > other guest requests. > > This offloading framework can be used by subsystems such as virtio-9p, > Asynchronous encoding for vnc-server, so that the vcpu thread can offload > blocking operations on to the asynchronous threads and resume servicing > any other guest requests. The asynchronous threads, after > finishing the blocking operations can then transfer the control over > to the IO thread so that the latter can handle the post_blocking_operation(). > > The patch series passed fsstress test without any issues. > > Could it be considered for inclusion ? > > --- > > Aneesh Kumar K.V (1): > qemu: Generic task offloading framework: threadlets > > Gautham R Shenoy (1): > qemu: Convert AIO code to use threadlets. > > > Makefile.objs | 3 + > docs/async-support.txt | 141 ++++++++++++++++++++++++++++++++++++++++ > posix-aio-compat.c | 152 +++++++------------------------------------ > qemu-threadlets.c | 170 > ++++++++++++++++++++++++++++++++++++++++++++++++ > qemu-threadlets.h | 48 ++++++++++++++ > 5 files changed, 385 insertions(+), 129 deletions(-) > create mode 100644 docs/async-support.txt > create mode 100644 qemu-threadlets.c > create mode 100644 qemu-threadlets.h > > -- > Thanks and Regards > gautham. > -- Thanks and Regards gautham