From: Liam R. Howlett <Liam.Howlett@Oracle.com>
Date: Fri, 11 Nov 2022 20:39:16 +0000 (-0500)
Subject: maple_tree: Add mas_init() function
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=ffe5f97d5edbe37ab76e0474852811868af424b3;p=users%2Fjedix%2Flinux-maple.git

maple_tree: Add mas_init() function

Add a function that will zero out the maple state struct and set some
basic defaults.

Signed-off-by: Liam R. Howlett <Liam.Howlett@oracle.com>
---

diff --git a/include/linux/maple_tree.h b/include/linux/maple_tree.h
index 554a2f38fcd3..6914fa493710 100644
--- a/include/linux/maple_tree.h
+++ b/include/linux/maple_tree.h
@@ -433,6 +433,7 @@ struct ma_wr_state {
 		.min = 0,						\
 		.max = ULONG_MAX,					\
 		.alloc = NULL,						\
+		.mas_flags = 0,						\
 	}
 
 #define MA_WR_STATE(name, ma_state, wr_entry)				\
@@ -471,6 +472,16 @@ void *mas_next(struct ma_state *mas, unsigned long max);
 int mas_empty_area(struct ma_state *mas, unsigned long min, unsigned long max,
 		   unsigned long size);
 
+static inline void mas_init(struct ma_state *mas, struct maple_tree *tree,
+			    unsigned long addr)
+{
+	memset(mas, 0, sizeof(struct ma_state));
+	mas->tree = tree;
+	mas->index = mas->last = addr;
+	mas->max = ULONG_MAX;
+	mas->node = MAS_START;
+}
+
 /* Checks if a mas has not found anything */
 static inline bool mas_is_none(struct ma_state *mas)
 {