From: Jason Gunthorpe <jgg@nvidia.com> To: Cornelia Huck <cohuck@redhat.com> Cc: Christoph Hellwig <hch@infradead.org>, David Airlie <airlied@linux.ie>, Tony Krowiak <akrowiak@linux.ibm.com>, Alex Williamson <alex.williamson@redhat.com>, Christian Borntraeger <borntraeger@de.ibm.com>, Daniel Vetter <daniel@ffwll.ch>, dri-devel@lists.freedesktop.org, Eric Farman <farman@linux.ibm.com>, Harald Freudenberger <freude@linux.ibm.com>, Vasily Gorbik <gor@linux.ibm.com>, Heiko Carstens <hca@linux.ibm.com>, intel-gfx@lists.freedesktop.org, intel-gvt-dev@lists.freedesktop.org, Jani Nikula <jani.nikula@linux.intel.com>, Jason Herne <jjherne@linux.ibm.com>, Joonas Lahtinen <joonas.lahtinen@linux.intel.com>, kvm@vger.kernel.org, Kirti Wankhede <kwankhede@nvidia.com>, linux-s390@vger.kernel.org, Matthew Rosato <mjrosato@linux.ibm.com>, Peter Oberparleiter <oberpar@linux.ibm.com>, Halil Pasic <pasic@linux.ibm.com>, Rodrigo Vivi <rodrigo.vivi@intel.com>, Vineeth Vijayan <vneethv@linux.ibm.com>, Zhenyu Wang <zhenyuw@linux.intel.com>, Zhi Wang <zhi.a.wang@intel.com>, Christoph Hellwig <hch@lst.de> Subject: Re: [PATCH v2 1/9] vfio/ccw: Use functions for alloc/free of the vfio_ccw_private Date: Tue, 14 Sep 2021 15:03:50 -0300 [thread overview] Message-ID: <20210914180350.GG4065468@nvidia.com> (raw) In-Reply-To: <87sfy7gnr2.fsf@redhat.com> On Tue, Sep 14, 2021 at 05:50:25PM +0200, Cornelia Huck wrote: > On Fri, Sep 10 2021, Christoph Hellwig <hch@infradead.org> wrote: > > > On Thu, Sep 09, 2021 at 04:38:41PM -0300, Jason Gunthorpe wrote: > >> + > >> + private = kzalloc(sizeof(*private), GFP_KERNEL | GFP_DMA); > >> + if (!private) > >> + return ERR_PTR(-ENOMEM); > > > > Nit: there is no need to add GFP_KERNEL when using GFP_DMA. > > > > Also a question to the s390 maintainers: why do we need 31-bit > > addressability for the main private data structure? > > I don't think we need it anymore since c98e16b2fa12 ("s390/cio: Convert > ccw_io_region to pointer") and probably should just drop the GFP_DMA. I added this to the series: From 0d40f9c57430400a81aa60920b70761535967048 Mon Sep 17 00:00:00 2001 From: Jason Gunthorpe <jgg@nvidia.com> Date: Tue, 14 Sep 2021 14:21:49 -0300 Subject: [PATCH] vfio/ccw: Remove unneeded GFP_DMA Since the ccw_io_region was split out of the private the allocation no longer needs the GFP_DMA. Remove it. Reported-by: Christoph Hellwig <hch@infradead.org> Fixes: c98e16b2fa12 ("s390/cio: Convert ccw_io_region to pointer") Signed-off-by: Jason Gunthorpe <jgg@nvidia.com> --- drivers/s390/cio/vfio_ccw_drv.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/s390/cio/vfio_ccw_drv.c b/drivers/s390/cio/vfio_ccw_drv.c index 76099bcb765b45..371558ec92045d 100644 --- a/drivers/s390/cio/vfio_ccw_drv.c +++ b/drivers/s390/cio/vfio_ccw_drv.c @@ -161,7 +161,7 @@ static int vfio_ccw_sch_probe(struct subchannel *sch) return -ENODEV; } - private = kzalloc(sizeof(*private), GFP_KERNEL | GFP_DMA); + private = kzalloc(sizeof(*private), GFP_KERNEL); if (!private) return -ENOMEM; -- 2.33.0
WARNING: multiple messages have this Message-ID (diff)
From: Jason Gunthorpe <jgg@nvidia.com> To: Cornelia Huck <cohuck@redhat.com> Cc: Christoph Hellwig <hch@infradead.org>, David Airlie <airlied@linux.ie>, Tony Krowiak <akrowiak@linux.ibm.com>, Alex Williamson <alex.williamson@redhat.com>, Christian Borntraeger <borntraeger@de.ibm.com>, Daniel Vetter <daniel@ffwll.ch>, dri-devel@lists.freedesktop.org, Eric Farman <farman@linux.ibm.com>, Harald Freudenberger <freude@linux.ibm.com>, Vasily Gorbik <gor@linux.ibm.com>, Heiko Carstens <hca@linux.ibm.com>, intel-gfx@lists.freedesktop.org, intel-gvt-dev@lists.freedesktop.org, Jani Nikula <jani.nikula@linux.intel.com>, Jason Herne <jjherne@linux.ibm.com>, Joonas Lahtinen <joonas.lahtinen@linux.intel.com>, kvm@vger.kernel.org, Kirti Wankhede <kwankhede@nvidia.com>, linux-s390@vger.kernel.org, Matthew Rosato <mjrosato@linux.ibm.com>, Peter Oberparleiter <oberpar@linux.ibm.com>, Halil Pasic <pasic@linux.ibm.com>, Rodrigo Vivi <rodrigo.vivi@intel.com>, Vineeth Vijayan <vneethv@linux.ibm.com>, Zhenyu Wang <zhenyuw@linux.intel.com>, Zhi Wang <zhi.a.wang@intel.com>, Christoph Hellwig <hch@lst.de> Subject: Re: [Intel-gfx] [PATCH v2 1/9] vfio/ccw: Use functions for alloc/free of the vfio_ccw_private Date: Tue, 14 Sep 2021 15:03:50 -0300 [thread overview] Message-ID: <20210914180350.GG4065468@nvidia.com> (raw) In-Reply-To: <87sfy7gnr2.fsf@redhat.com> On Tue, Sep 14, 2021 at 05:50:25PM +0200, Cornelia Huck wrote: > On Fri, Sep 10 2021, Christoph Hellwig <hch@infradead.org> wrote: > > > On Thu, Sep 09, 2021 at 04:38:41PM -0300, Jason Gunthorpe wrote: > >> + > >> + private = kzalloc(sizeof(*private), GFP_KERNEL | GFP_DMA); > >> + if (!private) > >> + return ERR_PTR(-ENOMEM); > > > > Nit: there is no need to add GFP_KERNEL when using GFP_DMA. > > > > Also a question to the s390 maintainers: why do we need 31-bit > > addressability for the main private data structure? > > I don't think we need it anymore since c98e16b2fa12 ("s390/cio: Convert > ccw_io_region to pointer") and probably should just drop the GFP_DMA. I added this to the series: From 0d40f9c57430400a81aa60920b70761535967048 Mon Sep 17 00:00:00 2001 From: Jason Gunthorpe <jgg@nvidia.com> Date: Tue, 14 Sep 2021 14:21:49 -0300 Subject: [PATCH] vfio/ccw: Remove unneeded GFP_DMA Since the ccw_io_region was split out of the private the allocation no longer needs the GFP_DMA. Remove it. Reported-by: Christoph Hellwig <hch@infradead.org> Fixes: c98e16b2fa12 ("s390/cio: Convert ccw_io_region to pointer") Signed-off-by: Jason Gunthorpe <jgg@nvidia.com> --- drivers/s390/cio/vfio_ccw_drv.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/s390/cio/vfio_ccw_drv.c b/drivers/s390/cio/vfio_ccw_drv.c index 76099bcb765b45..371558ec92045d 100644 --- a/drivers/s390/cio/vfio_ccw_drv.c +++ b/drivers/s390/cio/vfio_ccw_drv.c @@ -161,7 +161,7 @@ static int vfio_ccw_sch_probe(struct subchannel *sch) return -ENODEV; } - private = kzalloc(sizeof(*private), GFP_KERNEL | GFP_DMA); + private = kzalloc(sizeof(*private), GFP_KERNEL); if (!private) return -ENOMEM; -- 2.33.0
next prev parent reply other threads:[~2021-09-14 18:03 UTC|newest] Thread overview: 80+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-09-09 19:38 [PATCH v2 0/9] Move vfio_ccw to the new mdev API Jason Gunthorpe 2021-09-09 19:38 ` [Intel-gfx] " Jason Gunthorpe 2021-09-09 19:38 ` [PATCH v2 1/9] vfio/ccw: Use functions for alloc/free of the vfio_ccw_private Jason Gunthorpe 2021-09-09 19:38 ` [Intel-gfx] " Jason Gunthorpe 2021-09-10 11:27 ` Christoph Hellwig 2021-09-10 11:27 ` Christoph Hellwig 2021-09-14 15:50 ` Cornelia Huck 2021-09-14 15:50 ` [Intel-gfx] " Cornelia Huck 2021-09-14 18:03 ` Jason Gunthorpe [this message] 2021-09-14 18:03 ` Jason Gunthorpe 2021-09-24 2:53 ` Eric Farman 2021-09-24 2:53 ` [Intel-gfx] " Eric Farman 2021-09-09 19:38 ` [PATCH v2 2/9] vfio/ccw: Pass vfio_ccw_private not mdev_device to various functions Jason Gunthorpe 2021-09-09 19:38 ` [Intel-gfx] " Jason Gunthorpe 2021-09-10 11:32 ` Christoph Hellwig 2021-09-10 11:32 ` Christoph Hellwig 2021-09-20 11:12 ` Cornelia Huck 2021-09-20 11:12 ` [Intel-gfx] " Cornelia Huck 2021-09-24 2:53 ` Eric Farman 2021-09-24 2:53 ` [Intel-gfx] " Eric Farman 2021-09-09 19:38 ` [PATCH v2 3/9] vfio/ccw: Convert to use vfio_register_group_dev() Jason Gunthorpe 2021-09-09 19:38 ` [Intel-gfx] " Jason Gunthorpe 2021-09-24 20:37 ` Eric Farman 2021-09-24 20:37 ` [Intel-gfx] " Eric Farman 2021-09-27 12:17 ` Jason Gunthorpe 2021-09-27 12:17 ` [Intel-gfx] " Jason Gunthorpe 2021-09-09 19:38 ` [PATCH v2 4/9] vfio/ccw: Make the FSM complete and synchronize it to the mdev Jason Gunthorpe 2021-09-09 19:38 ` [Intel-gfx] " Jason Gunthorpe 2021-09-20 12:19 ` Cornelia Huck 2021-09-20 12:19 ` [Intel-gfx] " Cornelia Huck 2021-09-20 12:30 ` Jason Gunthorpe 2021-09-20 12:30 ` [Intel-gfx] " Jason Gunthorpe 2021-09-09 19:38 ` [PATCH v2 5/9] vfio/mdev: Consolidate all the device_api sysfs into the core code Jason Gunthorpe 2021-09-09 19:38 ` [Intel-gfx] " Jason Gunthorpe 2021-09-10 12:10 ` Christoph Hellwig 2021-09-10 12:10 ` [Intel-gfx] " Christoph Hellwig 2021-09-10 13:38 ` Jason Gunthorpe 2021-09-10 13:38 ` [Intel-gfx] " Jason Gunthorpe 2021-09-10 16:09 ` Alex Williamson 2021-09-10 16:09 ` [Intel-gfx] " Alex Williamson 2021-09-09 19:38 ` [PATCH v2 6/9] vfio/mdev: Add mdev available instance checking to the core Jason Gunthorpe 2021-09-09 19:38 ` [Intel-gfx] " Jason Gunthorpe 2021-09-10 12:25 ` Christoph Hellwig 2021-09-10 12:25 ` [Intel-gfx] " Christoph Hellwig 2021-09-20 18:02 ` Cornelia Huck 2021-09-20 18:02 ` [Intel-gfx] " Cornelia Huck 2021-09-21 13:19 ` Jason Gunthorpe 2021-09-21 13:19 ` [Intel-gfx] " Jason Gunthorpe 2021-09-24 2:54 ` Eric Farman 2021-09-24 2:54 ` [Intel-gfx] " Eric Farman 2021-09-09 19:38 ` [PATCH v2 7/9] vfio/ccw: Remove private->mdev Jason Gunthorpe 2021-09-09 19:38 ` [Intel-gfx] " Jason Gunthorpe 2021-09-24 20:45 ` Eric Farman 2021-09-24 20:45 ` [Intel-gfx] " Eric Farman 2021-09-27 12:32 ` Jason Gunthorpe 2021-09-27 12:32 ` [Intel-gfx] " Jason Gunthorpe 2021-09-27 20:45 ` Eric Farman 2021-09-27 20:45 ` [Intel-gfx] " Eric Farman 2021-09-09 19:38 ` [PATCH v2 8/9] vfio: Export vfio_device_try_get() Jason Gunthorpe 2021-09-09 19:38 ` [Intel-gfx] " Jason Gunthorpe 2021-09-09 19:38 ` [PATCH v2 9/9] vfio/ccw: Move the lifecycle of the struct vfio_ccw_private to the mdev Jason Gunthorpe 2021-09-09 19:38 ` [Intel-gfx] " Jason Gunthorpe 2021-09-09 19:54 ` [Intel-gfx] ✗ Fi.CI.BUILD: failure for Move vfio_ccw to the new mdev API Patchwork 2021-09-13 17:40 ` [PATCH v2 0/9] " Eric Farman 2021-09-13 17:40 ` [Intel-gfx] " Eric Farman 2021-09-13 19:24 ` Jason Gunthorpe 2021-09-13 19:24 ` [Intel-gfx] " Jason Gunthorpe 2021-09-13 20:31 ` Eric Farman 2021-09-13 20:31 ` [Intel-gfx] " Eric Farman 2021-09-14 13:36 ` Jason Gunthorpe 2021-09-14 13:36 ` [Intel-gfx] " Jason Gunthorpe 2021-09-17 11:59 ` Cornelia Huck 2021-09-17 11:59 ` [Intel-gfx] " Cornelia Huck 2021-09-17 12:51 ` Jason Gunthorpe 2021-09-17 12:51 ` [Intel-gfx] " Jason Gunthorpe 2021-09-17 14:37 ` Cornelia Huck 2021-09-17 14:37 ` [Intel-gfx] " Cornelia Huck 2021-09-14 13:46 ` [Intel-gfx] ✗ Fi.CI.BUILD: failure for Move vfio_ccw to the new mdev API (rev2) Patchwork 2021-09-14 18:19 ` [Intel-gfx] ✗ Fi.CI.BUILD: failure for Move vfio_ccw to the new mdev API (rev3) Patchwork 2021-09-21 15:11 ` [Intel-gfx] ✗ Fi.CI.BUILD: failure for Move vfio_ccw to the new mdev API (rev4) Patchwork
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