From: Sidhartha Kumar <sidhartha.kumar@oracle.com>
Date: Wed, 13 Dec 2023 05:04:50 +0000 (-0800)
Subject: maple_tree: introduce mas_wr_prealloc_setup()
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=f2ad0bc722bad460a5870402fd1107b7dd9d1b4d;p=users%2Fjedix%2Flinux-maple.git

maple_tree: introduce mas_wr_prealloc_setup()

Introduce a helper function, mas_wr_prealoc_setup(), that will set up a
maple write state in order to start a walk of a maple tree.

Signed-off-by: Sidhartha Kumar <sidhartha.kumar@oracle.com>
---

diff --git a/lib/maple_tree.c b/lib/maple_tree.c
index 6f241bb38799..a169bea91441 100644
--- a/lib/maple_tree.c
+++ b/lib/maple_tree.c
@@ -5354,6 +5354,13 @@ reset:
 	mas_reset(wr_mas->mas);
 }
 
+static inline void mas_wr_prealloc_setup(struct ma_wr_state *wr_mas)
+{
+	struct ma_state *mas = wr_mas->mas;
+
+	mas_wr_store_setup(wr_mas);
+	wr_mas->content = mas_start(mas);
+}
 /* Interface */
 
 /**
@@ -5459,8 +5466,7 @@ int mas_preallocate(struct ma_state *mas, void *entry, gfp_t gfp)
 	if (unlikely(!mas->index && mas->last == ULONG_MAX))
 		goto ask_now;
 
-	mas_wr_store_setup(&wr_mas);
-	wr_mas.content = mas_start(mas);
+	mas_wr_prealloc_setup(&wr_mas);
 	/* Root expand */
 	if (unlikely(mas_is_none(mas) || mas_is_ptr(mas)))
 		goto ask_now;