linux-kernel - [PATCH 1/6] maple_tree: Add hex output to maple

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Date:   Fri,  4 Aug 2023 12:59:46 -0400
From:   "Liam R. Howlett" <Liam.Howlett@...cle.com>
To:     Andrew Morton <akpm@...ux-foundation.org>
Cc:     maple-tree@...ts.infradead.org, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org,
        "Paul E . McKenney" <paulmck@...nel.org>,
        Suren Baghdasaryan <surenb@...gle.com>,
        Matthew Wilcox <willy@...radead.org>,
        "Liam R. Howlett" <Liam.Howlett@...cle.com>
Subject: [PATCH 1/6] maple_tree: Add hex output to maple_arange64 dump

When dumping the tree, honour formatting request to output hex for the
maple node type arange64.

Signed-off-by: Liam R. Howlett <Liam.Howlett@...cle.com>
---
 lib/maple_tree.c | 24 ++++++++++++++++++++----
 1 file changed, 20 insertions(+), 4 deletions(-)

diff --git a/lib/maple_tree.c b/lib/maple_tree.c
index a3d602cfd030..880ce0fcdcac 100644
--- a/lib/maple_tree.c
+++ b/lib/maple_tree.c
@@ -6833,11 +6833,27 @@ static void mt_dump_arange64(const struct maple_tree *mt, void *entry,
 	int i;
 
 	pr_cont(" contents: ");
-	for (i = 0; i < MAPLE_ARANGE64_SLOTS; i++)
-		pr_cont("%lu ", node->gap[i]);
+	for (i = 0; i < MAPLE_ARANGE64_SLOTS; i++) {
+		switch (format) {
+		case mt_dump_hex:
+			pr_cont("%lx ", node->gap[i]);
+			break;
+		default:
+		case mt_dump_dec:
+			pr_cont("%lu ", node->gap[i]);
+		}
+	}
 	pr_cont("| %02X %02X| ", node->meta.end, node->meta.gap);
-	for (i = 0; i < MAPLE_ARANGE64_SLOTS - 1; i++)
-		pr_cont("%p %lu ", node->slot[i], node->pivot[i]);
+	for (i = 0; i < MAPLE_ARANGE64_SLOTS - 1; i++) {
+		switch (format) {
+		case mt_dump_hex:
+			pr_cont("%p %lX ", node->slot[i], node->pivot[i]);
+			break;
+		default:
+		case mt_dump_dec:
+			pr_cont("%p %lu ", node->slot[i], node->pivot[i]);
+		}
+	}
 	pr_cont("%p\n", node->slot[i]);
 	for (i = 0; i < MAPLE_ARANGE64_SLOTS; i++) {
 		unsigned long last = max;
-- 
2.39.2