| Message ID | 20230510141932.413348-1-thomas.hellstrom@linux.intel.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | drm/xe: Fix unprotected rebind_list accesses | expand |
On Wed, 2023-05-10 at 16:19 +0200, Thomas Hellström wrote: > Each VM has two rebind lists, one protected by the VM resv, the other > one protected essentially by the VM notifier.list_lock. This series > intends to fix two points of illegal access. > > Patch 1 fixes an access of VM rebind_lists' link without the VM resv held. > Patch 2 fixes an issue where the VMA may not be removed from the > VM notifier.rebind_list on VMA destruction. Tested-by: José Roberto de Souza <jose.souza@intel.com> This improved overall stability and fixed the 'list_add corruption' errors, thank you. > > Thomas Hellström (2): > drm/xe: Fix unlocked access of the vma::rebind_link > drm/xe: Properly remove the vma from the vm::notifer::rebind_list when > destroyed > > drivers/gpu/drm/xe/xe_vm.c | 23 ++++++++++++++++------- > 1 file changed, 16 insertions(+), 7 deletions(-) >
Each VM has two rebind lists, one protected by the VM resv, the other one protected essentially by the VM notifier.list_lock. This series intends to fix two points of illegal access. Patch 1 fixes an access of VM rebind_lists' link without the VM resv held. Patch 2 fixes an issue where the VMA may not be removed from the VM notifier.rebind_list on VMA destruction. Thomas Hellström (2): drm/xe: Fix unlocked access of the vma::rebind_link drm/xe: Properly remove the vma from the vm::notifer::rebind_list when destroyed drivers/gpu/drm/xe/xe_vm.c | 23 ++++++++++++++++------- 1 file changed, 16 insertions(+), 7 deletions(-)