On Mon, Jun 09, 2025 at 03:33:06PM +0800, Cindy Lu wrote: > In this series, a new UAPI is implemented to allow > userspace applications to configure their thread mode.
> Changelog v2: > 1. Change the module_param's name to enforce_inherit_owner, and the default > value is true. > 2. Change the UAPI's name to VHOST_SET_INHERIT_FROM_OWNER. > > Changelog v3: > 1. Change the module_param's name to inherit_owner_default, and the default > value is true. > 2. Add a structure for task function; the worker will select a different > mode based on the value inherit_owner. > 3. device will have their own inherit_owner in struct vhost_dev > 4. Address other comments > > Changelog v4: > 1. remove the module_param, only keep the UAPI > 2. remove the structure for task function; change to use the function > pointer in vhost_worker > 3. fix the issue in vhost_worker_create and vhost_dev_ioctl > 4. Address other comments > > Changelog v5: > 1. Change wakeup and stop function pointers in struct vhost_worker to void. > 2. merging patches 4, 5, 6 in a single patch > 3. Fix spelling issues and address other comments. > > Changelog v6: > 1. move the check of VHOST_NEW_WORKER from vhost_scsi to vhost > 2. Change the ioctl name VHOST_SET_INHERIT_FROM_OWNER to > VHOST_FORK_FROM_OWNER > 3. reuse the function __vhost_worker_flush > 4. use a ops sturct to support worker relates function > 5. reset the value of inherit_owner in vhost_dev_reset_owner. > > Changelog v7: > 1. add a KConfig knob to disable legacy app support > 2. Split the changes into two patches to separately introduce the ops and > add kthread support. > 3. Utilized INX_MAX to avoid modifications in __vhost_worker_flush > 4. Rebased on the latest kernel > 5. Address other comments > > Changelog v8: > 1. Rebased on the latest kernel > 2. Address some other comments > > Changelog v9: > 1. Rebased on the latest kernel. > 2. Squashed patches 6‑7. > 3. Squashed patches 2‑4. > 4. Minor fixes in commit log > > Changelog v10: > 1.Add support for the module_param. > 2.Squash patches 3 and 4. > 3.Make minor fixes in the commit log. > 4.Fix the mismatched tabs in Kconfig. > 5.Rebase on the latest kernel. > > Changelog v11: > 1.make the module_param under Kconfig > 2.Make minor fixes in the commit log. > 3.change the name inherit_owner to fork_owner > 4.add NEW ioctl VHOST_GET_FORK_FROM_OWNER > 5.Rebase on the latest kernel > > Tested with QEMU with kthread mode/task mode/kthread+task mode > > Cindy Lu (3): > vhost: Add a new parameter in vhost_dev to allow user select kthread > vhost: Reintroduce kthread mode support in vhost > vhost: Add configuration controls for vhost worker's mode All of this should be squashed in a single patch. > > drivers/vhost/Kconfig | 17 +++ > drivers/vhost/vhost.c | 234 ++++++++++++++++++++++++++++++++++--- > drivers/vhost/vhost.h | 22 ++++ > include/uapi/linux/vhost.h | 25 ++++ > 4 files changed, 280 insertions(+), 18 deletions(-) > > -- > 2.45.0
