search for: hellwig

...drivers/virtio/virtio_pci_common.c Michael S. Tsirkin 2017-04-04 230 if (vp_dev->per_vq_vectors) { f6813487d drivers/virtio/virtio_pci_common.c Michael S. Tsirkin 2017-04-04 231 int v = vp_dev->vqs[vq->index]->msix_vector; fa3a32793 drivers/virtio/virtio_pci_common.c Christoph Hellwig 2016-11-17 232 e1c287efc drivers/virtio/virtio_pci_common.c Marc Zyngier 2017-03-08 233 if (v != VIRTIO_MSI_NO_VECTOR) { e1c287efc drivers/virtio/virtio_pci_common.c Marc Zyngier 2017-03-08 234 int irq = pci_irq_vector(vp_dev->pci_dev, v); e1c287efc drivers/virtio/virt...

...drivers/virtio/virtio_pci_common.c Michael S. Tsirkin 2017-04-04 230 if (vp_dev->per_vq_vectors) { f6813487d drivers/virtio/virtio_pci_common.c Michael S. Tsirkin 2017-04-04 231 int v = vp_dev->vqs[vq->index]->msix_vector; fa3a32793 drivers/virtio/virtio_pci_common.c Christoph Hellwig 2016-11-17 232 e1c287efc drivers/virtio/virtio_pci_common.c Marc Zyngier 2017-03-08 233 if (v != VIRTIO_MSI_NO_VECTOR) { e1c287efc drivers/virtio/virtio_pci_common.c Marc Zyngier 2017-03-08 234 int irq = pci_irq_vector(vp_dev->pci_dev, v); e1c287efc drivers/virtio/virt...

Hi Jérôme, Ben, Felxi and Jason, below is a series against the hmm tree which cleans up various minor bits and allows HMM_MIRROR to be built on all architectures. Diffstat: 7 files changed, 81 insertions(+), 171 deletions(-) A git tree is also available at: git://git.infradead.org/users/hch/misc.git hmm-cleanups Gitweb:

On Mon, Jul 29, 2019 at 05:28:43PM +0300, Christoph Hellwig wrote: > The MIGRATE_PFN_WRITE is only used locally in migrate_vma_collect_pmd, > where it can be replaced with a simple boolean local variable. > > Signed-off-by: Christoph Hellwig <hch at lst.de> NAK that flag is useful, for instance a anonymous vma might have some of its page...

Hi Jérôme, Ben and Jason, below is a series against the hmm tree which fixes up the mmap_sem locking in nouveau and while at it also removes leftover legacy HMM APIs only used by nouveau. The first 4 patches are a bug fix for nouveau, which I suspect should go into this merge window even if the code is marked as staging, just to avoid people copying the breakage. Changes since v1: - don't

On Wed, Jun 26, 2019 at 02:27:15PM +0200, Christoph Hellwig wrote: > The functionality is identical to the one currently open coded in > device-dax. > > Signed-off-by: Christoph Hellwig <hch at lst.de> > Reviewed-by: Ira Weiny <ira.weiny at intel.com> > --- > drivers/dax/dax-private.h | 4 ---- > drivers/dax/device.c...

...em. This restores the behavior at time of the virtio-blk blk-mq conversion, which was changed by commit "block: add queue flag for disabling SG merging" which made the behavior optional, but didn't update the existing drivers to keep their previous behavior. Signed-off-by: Christoph Hellwig <hch at lst.de> --- drivers/block/virtio_blk.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c index 0a58140..311b857 100644 --- a/drivers/block/virtio_blk.c +++ b/drivers/block/virtio_blk.c @@ -634,7 +634,7 @@ stati...

...em. This restores the behavior at time of the virtio-blk blk-mq conversion, which was changed by commit "block: add queue flag for disabling SG merging" which made the behavior optional, but didn't update the existing drivers to keep their previous behavior. Signed-off-by: Christoph Hellwig <hch at lst.de> --- drivers/block/virtio_blk.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c index 0a58140..311b857 100644 --- a/drivers/block/virtio_blk.c +++ b/drivers/block/virtio_blk.c @@ -634,7 +634,7 @@ stati...

On 3/16/20 12:32 PM, Christoph Hellwig wrote: > Remove the code to fault device private pages back into system memory > that has never been used by any driver. Also replace the usage of the > HMM_PFN_DEVICE_PRIVATE flag in the pfns array with a simple > is_device_private_page check in nouveau. > > Signed-off-by: Chri...

Hi Dan, Jérôme and Jason, below is a series that cleans up the dev_pagemap interface so that it is more easily usable, which removes the need to wrap it in hmm and thus allowing to kill a lot of code Diffstat: 22 files changed, 245 insertions(+), 802 deletions(-) Git tree: git://git.infradead.org/users/hch/misc.git hmm-devmem-cleanup Gitweb:

On Tue, Aug 06, 2019 at 07:05:53PM +0300, Christoph Hellwig wrote: > The option is just used to select HMM mirror support and has a very > confusing help text. Just pull in the HMM mirror code by default > instead. > > Signed-off-by: Christoph Hellwig <hch at lst.de> > --- > drivers/gpu/drm/Kconfig | 2 ++ >...

Without this fix attempts to do scsi passthrough on virtio_blk will crash the system on virtually mapped stacks, which is something happening during boot with many distros.

Without this fix attempts to do scsi passthrough on virtio_blk will crash the system on virtually mapped stacks, which is something happening during boot with many distros.

Hi Jérôme, Ben, Felix and Jason, below is a series against the hmm tree which cleans up various minor bits and allows HMM_MIRROR to be built on all architectures. Diffstat: 11 files changed, 94 insertions(+), 210 deletions(-) A git tree is also available at: git://git.infradead.org/users/hch/misc.git hmm-cleanups.2 Gitweb:

On Thu, Jun 13, 2019 at 11:43:21AM +0200, Christoph Hellwig wrote: > The code hasn't been used since it was added to the tree, and doesn't > appear to actually be usable. Mark it as BROKEN until either a user > comes along or we finally give up on it. > > Signed-off-by: Christoph Hellwig <hch at lst.de> > mm/Kconfig | 1 +...

[ add Ira ] On Wed, Jun 26, 2019 at 5:27 AM Christoph Hellwig <hch at lst.de> wrote: > > The code hasn't been used since it was added to the tree, and doesn't > appear to actually be usable. > > Signed-off-by: Christoph Hellwig <hch at lst.de> > Reviewed-by: Jason Gunthorpe <jgg at mellanox.com> > Acked-by: Micha...

On Thu, Jun 13, 2019 at 11:43:12AM +0200, Christoph Hellwig wrote: > Just check if there is a ->page_free operation set and take care of the > static key enable, as well as the put using device managed resources. > diff --git a/mm/hmm.c b/mm/hmm.c > index c76a1b5defda..6dc769feb2e1 100644 > +++ b/mm/hmm.c > @@ -1378,8 +1378,6 @@ struct...

On Thu 13-06-19 11:43:21, Christoph Hellwig wrote: > The code hasn't been used since it was added to the tree, and doesn't > appear to actually be usable. Mark it as BROKEN until either a user > comes along or we finally give up on it. I would go even further and simply remove all the DEVICE_PUBLIC code. > Signed-off-b...

...still be called > with walk->vma == NULL if the start and end address are not contained > within the vma range. Should we convert to walk_vma_range instead? Or keep walk_page_range but drop searching the vma ourselves? Except for that the patch looks good to me: Reviewed-by: Christoph Hellwig <hch at lst.de>

On Fri, Jun 28, 2019 at 09:27:44AM -0700, Dan Williams wrote: > On Fri, Jun 28, 2019 at 8:39 AM Jason Gunthorpe <jgg at mellanox.com> wrote: > > > > On Wed, Jun 26, 2019 at 02:27:15PM +0200, Christoph Hellwig wrote: > > > The functionality is identical to the one currently open coded in > > > device-dax. > > > > > > Signed-off-by: Christoph Hellwig <hch at lst.de> > > > Reviewed-by: Ira Weiny <ira.weiny at intel.com> > > > drivers/dax/da...