Page MenuHomeFreeBSD
Files F152935612

D48762.id150258.diff
No OneTemporary
Actions

D48762.id150258.diff
View Options

Index: sys/compat/linuxkpi/common/src/linux_xarray.c
===================================================================
--- sys/compat/linuxkpi/common/src/linux_xarray.c
+++ sys/compat/linuxkpi/common/src/linux_xarray.c
@@ -362,9 +362,19 @@
struct radix_tree_iter iter;
void **ppslot;
+ xa_lock(xa);
radix_tree_for_each_slot(ppslot, &xa->xa_head, &iter, 0)
radix_tree_iter_delete(&xa->xa_head, &iter, ppslot);
- mtx_destroy(&xa->xa_lock);
+ xa_unlock(xa);
+
+ /*
+ * The mutex initialized in `xa_init_flags()` is not destroyed here on
+ * purpose. The reason is that on Linux, the xarray remains usable
+ * after a call to `xa_destroy()`. For instance the i915 DRM driver
+ * relies on that during the initialixation of its GuC. Basically,
+ * `xa_destroy()` "resets" the structure to zero but doesn't really
+ * destroy it.
+ */
}
/*

File Metadata

Mime Type
text/plain
Expires
Sun, Apr 19, 4:34 AM (15 h, 23 m)
Storage Engine
blob
Storage Format
Raw Data
Storage Handle
31735992
Default Alt Text
D48762.id150258.diff (858 B)

Event Timeline