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authorJonathan Gray <jsg@cvs.openbsd.org>2024-02-06 03:53:16 +0000
committerJonathan Gray <jsg@cvs.openbsd.org>2024-02-06 03:53:16 +0000
commitf70946736de18f01e98d6d39b25aef6caf19b41d (patch)
treed7fa94f274ab7ac1347080248edfc4f1b3ecbb1b /sys/dev/pci/drm/amd/amdkfd/kfd_svm.c
parent5b4fe0e732bd214bd170aefd21846e6014e4dcbb (diff)
drm/amdkfd: Fix lock dependency warning with srcu
From Philip Yang 752312f6a79440086ac0f9b08d7776870037323c in linux-6.6.y/6.6.16 2a9de42e8d3c82c6990d226198602be44f43f340 in mainline linux
Diffstat (limited to 'sys/dev/pci/drm/amd/amdkfd/kfd_svm.c')
-rw-r--r--sys/dev/pci/drm/amd/amdkfd/kfd_svm.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/sys/dev/pci/drm/amd/amdkfd/kfd_svm.c b/sys/dev/pci/drm/amd/amdkfd/kfd_svm.c
index a4c911fa167..b51224a85a3 100644
--- a/sys/dev/pci/drm/amd/amdkfd/kfd_svm.c
+++ b/sys/dev/pci/drm/amd/amdkfd/kfd_svm.c
@@ -2343,8 +2343,10 @@ retry:
mutex_unlock(&svms->lock);
mmap_write_unlock(mm);
- /* Pairs with mmget in svm_range_add_list_work */
- mmput(mm);
+ /* Pairs with mmget in svm_range_add_list_work. If dropping the
+ * last mm refcount, schedule release work to avoid circular locking
+ */
+ mmput_async(mm);
spin_lock(&svms->deferred_list_lock);
}