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-rw-r--r--lib/xarray.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/lib/xarray.c b/lib/xarray.c
index 142e36f9dfda..39f07bfc4dcc 100644
--- a/lib/xarray.c
+++ b/lib/xarray.c
@@ -1802,6 +1802,9 @@ EXPORT_SYMBOL(xa_get_order);
* stores the index into the @id pointer, then stores the entry at
* that index. A concurrent lookup will not see an uninitialised @id.
*
+ * Must only be operated on an xarray initialized with flag XA_FLAGS_ALLOC set
+ * in xa_init_flags().
+ *
* Context: Any context. Expects xa_lock to be held on entry. May
* release and reacquire xa_lock if @gfp flags permit.
* Return: 0 on success, -ENOMEM if memory could not be allocated or
@@ -1850,6 +1853,9 @@ EXPORT_SYMBOL(__xa_alloc);
* The search for an empty entry will start at @next and will wrap
* around if necessary.
*
+ * Must only be operated on an xarray initialized with flag XA_FLAGS_ALLOC set
+ * in xa_init_flags().
+ *
* Context: Any context. Expects xa_lock to be held on entry. May
* release and reacquire xa_lock if @gfp flags permit.
* Return: 0 if the allocation succeeded without wrapping. 1 if the