diff options
| author | Jason Gunthorpe <jgg@nvidia.com> | 2023-01-08 18:44:24 +0300 |
|---|---|---|
| committer | Alex Williamson <alex.williamson@redhat.com> | 2023-01-23 21:26:29 +0300 |
| commit | 0886196ca8810c5b1f5097b71c4bc0df40b10208 (patch) | |
| tree | ce3b10ea0f808d9a692bcc057b18fd84031fdd97 /drivers/vfio/container.c | |
| parent | 83ff6095ecf8bafd095a921a2267227519f510f8 (diff) | |
| download | linux-0886196ca8810c5b1f5097b71c4bc0df40b10208.tar.xz | |
vfio: Use GFP_KERNEL_ACCOUNT for userspace persistent allocations
Use GFP_KERNEL_ACCOUNT for userspace persistent allocations.
The GFP_KERNEL_ACCOUNT option lets the memory allocator know that this
is untrusted allocation triggered from userspace and should be a subject
of kmem accounting, and as such it is controlled by the cgroup
mechanism.
The way to find the relevant allocations was for example to look at the
close_device function and trace back all the kfrees to their
allocations.
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Yishai Hadas <yishaih@nvidia.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/20230108154427.32609-4-yishaih@nvidia.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Diffstat (limited to 'drivers/vfio/container.c')
| -rw-r--r-- | drivers/vfio/container.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/vfio/container.c b/drivers/vfio/container.c index b7a9560ab25e..5f398c493a1b 100644 --- a/drivers/vfio/container.c +++ b/drivers/vfio/container.c @@ -367,7 +367,7 @@ static int vfio_fops_open(struct inode *inode, struct file *filep) { struct vfio_container *container; - container = kzalloc(sizeof(*container), GFP_KERNEL); + container = kzalloc(sizeof(*container), GFP_KERNEL_ACCOUNT); if (!container) return -ENOMEM; |