similar to: [PATCH] drivers/vhost/scsi.c: avoid a 10-order allocation

As vhost scsi device struct is large, if the device is created on a busy system, kzalloc() might fail, so this patch does a fallback to vzalloc(). As vmalloc() adds overhead on data-path, add __GFP_REPEAT to kzalloc() flags to do this fallback only when really needed. Reported-by: Dan Aloni <alonid at stratoscale.com> Signed-off-by: Michael S. Tsirkin <mst at redhat.com> --- I put

As vhost scsi device struct is large, if the device is created on a busy system, kzalloc() might fail, so this patch does a fallback to vzalloc(). As vmalloc() adds overhead on data-path, add __GFP_REPEAT to kzalloc() flags to do this fallback only when really needed. Reported-by: Dan Aloni <alonid at stratoscale.com> Signed-off-by: Michael S. Tsirkin <mst at redhat.com> --- I put

Hello. On 09/17/2013 11:21 AM, Michael S. Tsirkin wrote: > As vhost scsi device struct is large, if the device is > created on a busy system, kzalloc() might fail, so this patch does a > fallback to vzalloc(). > As vmalloc() adds overhead on data-path, add __GFP_REPEAT > to kzalloc() flags to do this fallback only when really needed. > Reported-by: Dan Aloni <alonid at

Now that we have kvfree, use it in vhost-scsi instead of the open-coded version. Cc: Nicholas Bellinger <nab at linux-iscsi.org> Signed-off-by: Michael S. Tsirkin <mst at redhat.com> --- I have this queued for -rc2. Nicholas could you review ack pls? drivers/vhost/scsi.c | 12 ++---------- 1 file changed, 2 insertions(+), 10 deletions(-) diff --git a/drivers/vhost/scsi.c

Now that we have kvfree, use it in vhost-scsi instead of the open-coded version. Cc: Nicholas Bellinger <nab at linux-iscsi.org> Signed-off-by: Michael S. Tsirkin <mst at redhat.com> --- I have this queued for -rc2. Nicholas could you review ack pls? drivers/vhost/scsi.c | 12 ++---------- 1 file changed, 2 insertions(+), 10 deletions(-) diff --git a/drivers/vhost/scsi.c

I was getting a order 4 allocation failure from kmalloc when testing some game after a few days uptime with some suspend/resumes. For big allocations vmalloc should be used instead. Also limit size more aggressively to 256 KiB. Signed-off-by: Maarten Lankhorst <maarten.lankhorst at canonical.com> --- drivers/gpu/drm/nouveau/nouveau_gem.c | 30 +++++++++++++++++++++++------- 1 file

Use kvfree() instead of open-coding it. Signed-off-by: Wei Yongjun <weiyj.lk at gmail.com> --- drivers/vhost/vsock.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/drivers/vhost/vsock.c b/drivers/vhost/vsock.c index 028ca16..0ddf3a2 100644 --- a/drivers/vhost/vsock.c +++ b/drivers/vhost/vsock.c @@ -434,10 +434,7 @@ err: static void vhost_vsock_free(struct

Use kvfree() instead of open-coding it. Signed-off-by: Wei Yongjun <weiyj.lk at gmail.com> --- drivers/vhost/vsock.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/drivers/vhost/vsock.c b/drivers/vhost/vsock.c index 028ca16..0ddf3a2 100644 --- a/drivers/vhost/vsock.c +++ b/drivers/vhost/vsock.c @@ -434,10 +434,7 @@ err: static void vhost_vsock_free(struct

Reposting with actual patches included. The following changes since commit 96b2e73c5471542cb9c622c4360716684f8797ed: Revert "net/mlx4_en: Use affinity hint" (2014-06-02 00:18:48 -0700) are available in the git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git vhost-next for you to fetch changes up to 2ae76693b8bcabf370b981cd00c36cd41d33fabc: vhost:

Reposting with actual patches included. The following changes since commit 96b2e73c5471542cb9c622c4360716684f8797ed: Revert "net/mlx4_en: Use affinity hint" (2014-06-02 00:18:48 -0700) are available in the git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git vhost-next for you to fetch changes up to 2ae76693b8bcabf370b981cd00c36cd41d33fabc: vhost:

Tabs should not be doubly-escaped in regexp. Signed-off-by: Shahar Lev <shahar@stratoscale.com> --- v2v/convert_linux.ml | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/v2v/convert_linux.ml b/v2v/convert_linux.ml index adbcaa2..1e9e689 100644 --- a/v2v/convert_linux.ml +++ b/v2v/convert_linux.ml @@ -581,7 +581,7 @@ let rec convert ~keep_serial_console (g : G.guestfs)

On Thu, Apr 19, 2018 at 12:12:38PM -0400, Mikulas Patocka wrote: > Unfortunatelly, some kernel code has bugs - it uses kvmalloc and then > uses DMA-API on the returned memory or frees it with kfree. Such bugs were > found in the virtio-net driver, dm-integrity or RHEL7 powerpc-specific > code. Maybe it's time to have the SG code handle vmalloced pages? This is becoming more and

On Thu, Apr 19, 2018 at 12:12:38PM -0400, Mikulas Patocka wrote: > Unfortunatelly, some kernel code has bugs - it uses kvmalloc and then > uses DMA-API on the returned memory or frees it with kfree. Such bugs were > found in the virtio-net driver, dm-integrity or RHEL7 powerpc-specific > code. Maybe it's time to have the SG code handle vmalloced pages? This is becoming more and

Hi Linus, Please pull the following. Please note this needs to be merged before merging target-pending PULL which Nicholas will be sending out shortly. Thanks! The following changes since commit 1860e379875dfe7271c649058aeddffe5afd9d0d: Linux 3.15 (2014-06-08 11:19:54 -0700) are available in the git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git tags/for_linus

Hi Linus, Please pull the following. Please note this needs to be merged before merging target-pending PULL which Nicholas will be sending out shortly. Thanks! The following changes since commit 1860e379875dfe7271c649058aeddffe5afd9d0d: Linux 3.15 (2014-06-08 11:19:54 -0700) are available in the git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git tags/for_linus

Userspace requested command buffer allocations could be too large to make as a contiguous allocation. Use vmalloc if necessary to satisfy those allocations. Signed-off-by: David Riley <davidriley at chromium.org> --- drivers/gpu/drm/virtio/virtgpu_ioctl.c | 4 +- drivers/gpu/drm/virtio/virtgpu_vq.c | 114 ++++++++++++++++++++----- 2 files changed, 96 insertions(+), 22 deletions(-)

Userspace requested command buffer allocations could be too large to make as a contiguous allocation. Use vmalloc if necessary to satisfy those allocations. Signed-off-by: David Riley <davidriley at chromium.org> --- drivers/gpu/drm/virtio/virtgpu_ioctl.c | 4 +- drivers/gpu/drm/virtio/virtgpu_vq.c | 114 ++++++++++++++++++++----- 2 files changed, 96 insertions(+), 22 deletions(-)

On Tue, Sep 3, 2013 at 12:31 AM, Maarten Lankhorst <maarten.lankhorst at canonical.com> wrote: > I was getting a order 4 allocation failure from kmalloc when testing some game > after a few days uptime with some suspend/resumes. For big allocations vmalloc > should be used instead. I've picked up this patch with a minor modification (see below) > > Also limit size more

On Mon, 2020-06-15 at 21:57 -0400, Waiman Long wrote: > v4: > - Break out the memzero_explicit() change as suggested by Dan Carpenter > so that it can be backported to stable. > - Drop the "crypto: Remove unnecessary memzero_explicit()" patch for > now as there can be a bit more discussion on what is best. It will be > introduced as a separate patch

On Fri, Aug 30, 2019 at 10:49:25AM -0700, David Riley wrote: > Hi Gerd, > > On Fri, Aug 30, 2019 at 4:16 AM Gerd Hoffmann <kraxel at redhat.com> wrote: > > > > Hi, > > > > > > > - kfree(vbuf->data_buf); > > > > > + kvfree(vbuf->data_buf); > > > > > > > > if (is_vmalloc_addr(vbuf->data_buf))