1 files changed, 25 insertions, 33 deletions

diff --git a/lib/xarray.c b/lib/xarray.c
index b55aa8c1c20f..a9d28013f9dc 100644
--- a/lib/xarray.c
+++ b/lib/xarray.c
@@ -1361,23 +1361,21 @@ void *xa_erase(struct xarray *xa, unsigned long index)
 EXPORT_SYMBOL(xa_erase);
 
 /**
- * xa_store() - Store this entry in the XArray.
+ * __xa_store() - Store this entry in the XArray.
  * @xa: XArray.
  * @index: Index into array.
  * @entry: New entry.
  * @gfp: Memory allocation flags.
  *
- * After this function returns, loads from this index will return @entry.
- * Storing into an existing multislot entry updates the entry of every index.
- * The marks associated with @index are unaffected unless @entry is %NULL.
+ * You must already be holding the xa_lock when calling this function.
+ * It will drop the lock if needed to allocate memory, and then reacquire
+ * it afterwards.
  *
- * Context: Process context.  Takes and releases the xa_lock.  May sleep
- * if the @gfp flags permit.
- * Return: The old entry at this index on success, xa_err(-EINVAL) if @entry
- * cannot be stored in an XArray, or xa_err(-ENOMEM) if memory allocation
- * failed.
+ * Context: Any context.  Expects xa_lock to be held on entry.  May
+ * release and reacquire xa_lock if @gfp flags permit.
+ * Return: The old entry at this index or xa_err() if an error happened.
  */
-void *xa_store(struct xarray *xa, unsigned long index, void *entry, gfp_t gfp)
+void *__xa_store(struct xarray *xa, unsigned long index, void *entry, gfp_t gfp)
 {
         XA_STATE(xas, xa, index);
         void *curr;
@@ -1386,49 +1384,43 @@ void *xa_store(struct xarray *xa, unsigned long index, void *entry, gfp_t gfp)
                 return XA_ERROR(-EINVAL);
 
         do {
-                xas_lock(&xas);
                 curr = xas_store(&xas, entry);
                 if (xa_track_free(xa) && entry)
                         xas_clear_mark(&xas, XA_FREE_MARK);
-                xas_unlock(&xas);
-        } while (xas_nomem(&xas, gfp));
+        } while (__xas_nomem(&xas, gfp));
 
         return xas_result(&xas, curr);
 }
-EXPORT_SYMBOL(xa_store);
+EXPORT_SYMBOL(__xa_store);
 
 /**
- * __xa_store() - Store this entry in the XArray.
+ * xa_store() - Store this entry in the XArray.
  * @xa: XArray.
  * @index: Index into array.
  * @entry: New entry.
  * @gfp: Memory allocation flags.
  *
- * You must already be holding the xa_lock when calling this function.
- * It will drop the lock if needed to allocate memory, and then reacquire
- * it afterwards.
+ * After this function returns, loads from this index will return @entry.
+ * Storing into an existing multislot entry updates the entry of every index.
+ * The marks associated with @index are unaffected unless @entry is %NULL.
  *
- * Context: Any context.  Expects xa_lock to be held on entry.  May
- * release and reacquire xa_lock if @gfp flags permit.
- * Return: The old entry at this index or xa_err() if an error happened.
+ * Context: Any context.  Takes and releases the xa_lock.
+ * May sleep if the @gfp flags permit.
+ * Return: The old entry at this index on success, xa_err(-EINVAL) if @entry
+ * cannot be stored in an XArray, or xa_err(-ENOMEM) if memory allocation
+ * failed.
  */
-void *__xa_store(struct xarray *xa, unsigned long index, void *entry, gfp_t gfp)
+void *xa_store(struct xarray *xa, unsigned long index, void *entry, gfp_t gfp)
 {
-        XA_STATE(xas, xa, index);
         void *curr;
 
-        if (WARN_ON_ONCE(xa_is_internal(entry)))
-                return XA_ERROR(-EINVAL);
-
-        do {
-                curr = xas_store(&xas, entry);
-                if (xa_track_free(xa) && entry)
-                        xas_clear_mark(&xas, XA_FREE_MARK);
-        } while (__xas_nomem(&xas, gfp));
+        xa_lock(xa);
+        curr = __xa_store(xa, index, entry, gfp);
+        xa_unlock(xa);
 
-        return xas_result(&xas, curr);
+        return curr;
 }
-EXPORT_SYMBOL(__xa_store);
+EXPORT_SYMBOL(xa_store);
 
 /**
  * __xa_cmpxchg() - Store this entry in the XArray.