drm/xe: Disable garbage collector work item on SVM close

When an SVM is closed, the garbage collector work item must be stopped
synchronously and any future queuing must be prevented. Replace
flush_work() with disable_work_sync() to ensure both conditions are
met.

Fixes: 63f6e480d115 ("drm/xe: Add SVM garbage collector")
Cc: stable@vger.kernel.org
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Link: https://patch.msgid.link/20260227015225.3081787-1-matthew.brost@intel.com
(cherry picked from commit 2247feb9badca5a4774df9a437bfc44fba4f22de)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

diff --git a/drivers/gpu/drm/xe/xe_svm.c b/drivers/gpu/drm/xe/xe_svm.c
index ca67d0bdbfac5a159c6de9d71b9bf87b75d606e8..c6b92d4ea6f43e14d4d1495320de020225d7fed0 100644 (file)
--- a/drivers/gpu/drm/xe/xe_svm.c
+++ b/drivers/gpu/drm/xe/xe_svm.c
@@ -903,7 +903,7 @@ int xe_svm_init(struct xe_vm *vm)
 void xe_svm_close(struct xe_vm *vm)
 {
        xe_assert(vm->xe, xe_vm_is_closed(vm));
-       flush_work(&vm->svm.garbage_collector.work);
+       disable_work_sync(&vm->svm.garbage_collector.work);
        xe_svm_put_pagemaps(vm);
        drm_pagemap_release_owner(&vm->svm.peer);
 }