diff options
Diffstat (limited to '0010-drm-amdkfd-Use-mmget_not_zero-in-MMU-notifier.patch')
| -rw-r--r-- | 0010-drm-amdkfd-Use-mmget_not_zero-in-MMU-notifier.patch | 40 |
1 files changed, 0 insertions, 40 deletions
diff --git a/0010-drm-amdkfd-Use-mmget_not_zero-in-MMU-notifier.patch b/0010-drm-amdkfd-Use-mmget_not_zero-in-MMU-notifier.patch deleted file mode 100644 index c59141e3e928..000000000000 --- a/0010-drm-amdkfd-Use-mmget_not_zero-in-MMU-notifier.patch +++ /dev/null @@ -1,40 +0,0 @@ -From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 -From: Philip Yang <Philip.Yang@amd.com> -Date: Thu, 26 May 2022 16:15:38 -0400 -Subject: [PATCH] drm/amdkfd: Use mmget_not_zero in MMU notifier - -[ Upstream commit fa582c6f3684ac0098a9d02ddf0ed52a02b37127 ] - -MMU notifier callback may pass in mm with mm->mm_users==0 when process -is exiting, use mmget_no_zero to avoid accessing invalid mm in deferred -list work after mm is gone. - -Signed-off-by: Philip Yang <Philip.Yang@amd.com> -Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com> -Signed-off-by: Alex Deucher <alexander.deucher@amd.com> -Signed-off-by: Sasha Levin <sashal@kernel.org> ---- - drivers/gpu/drm/amd/amdkfd/kfd_svm.c | 3 +++ - 1 file changed, 3 insertions(+) - -diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_svm.c b/drivers/gpu/drm/amd/amdkfd/kfd_svm.c -index 3b8856b4cece8e2d0229d9843892bbe6010b23cf..5979335d7afdca82aaa9c59b137a272e41e1d95a 100644 ---- a/drivers/gpu/drm/amd/amdkfd/kfd_svm.c -+++ b/drivers/gpu/drm/amd/amdkfd/kfd_svm.c -@@ -2286,6 +2286,8 @@ svm_range_cpu_invalidate_pagetables(struct mmu_interval_notifier *mni, - - if (range->event == MMU_NOTIFY_RELEASE) - return true; -+ if (!mmget_not_zero(mni->mm)) -+ return true; - - start = mni->interval_tree.start; - last = mni->interval_tree.last; -@@ -2312,6 +2314,7 @@ svm_range_cpu_invalidate_pagetables(struct mmu_interval_notifier *mni, - } - - svm_range_unlock(prange); -+ mmput(mni->mm); - - return true; - } |