From a5bde5d8fde8a8cb28e59a672d5ddc5b9c1e7656 Mon Sep 17 00:00:00 2001
From: Breno Leitao <leitao@debian.org>
Date: Wed, 5 Aug 2026 07:52:36 -0700
Subject: workqueue: skip the node_nr_active update for non-unbound workqueues

apply_wqattrs_commit() updates node_nr_active->max unconditionally.
wq->node_nr_active[] is only allocated for unbound workqueues, so guard
the call before per-cpu workqueues start using this path.

No functional change: only unbound workqueues reach apply_wqattrs_*()
today.

Signed-off-by: Breno Leitao <leitao@debian.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
---
 drivers/md/dm-vdo/numeric.h | 78 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 78 insertions(+)
 create mode 100644 drivers/md/dm-vdo/numeric.h

(limited to 'drivers/md/dm-vdo/numeric.h')

diff --git a/drivers/md/dm-vdo/numeric.h b/drivers/md/dm-vdo/numeric.h
new file mode 100644
index 000000000..f568dc59e
--- /dev/null
+++ b/drivers/md/dm-vdo/numeric.h
@@ -0,0 +1,78 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright 2023 Red Hat
+ */
+
+#ifndef UDS_NUMERIC_H
+#define UDS_NUMERIC_H
+
+#include <linux/unaligned.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+
+/*
+ * These utilities encode or decode a number from an offset in a larger data buffer and then
+ * advance the offset pointer to the next field in the buffer.
+ */
+
+static inline void decode_s64_le(const u8 *buffer, size_t *offset, s64 *decoded)
+{
+	*decoded = get_unaligned_le64(buffer + *offset);
+	*offset += sizeof(s64);
+}
+
+static inline void encode_s64_le(u8 *data, size_t *offset, s64 to_encode)
+{
+	put_unaligned_le64(to_encode, data + *offset);
+	*offset += sizeof(s64);
+}
+
+static inline void decode_u64_le(const u8 *buffer, size_t *offset, u64 *decoded)
+{
+	*decoded = get_unaligned_le64(buffer + *offset);
+	*offset += sizeof(u64);
+}
+
+static inline void encode_u64_le(u8 *data, size_t *offset, u64 to_encode)
+{
+	put_unaligned_le64(to_encode, data + *offset);
+	*offset += sizeof(u64);
+}
+
+static inline void decode_s32_le(const u8 *buffer, size_t *offset, s32 *decoded)
+{
+	*decoded = get_unaligned_le32(buffer + *offset);
+	*offset += sizeof(s32);
+}
+
+static inline void encode_s32_le(u8 *data, size_t *offset, s32 to_encode)
+{
+	put_unaligned_le32(to_encode, data + *offset);
+	*offset += sizeof(s32);
+}
+
+static inline void decode_u32_le(const u8 *buffer, size_t *offset, u32 *decoded)
+{
+	*decoded = get_unaligned_le32(buffer + *offset);
+	*offset += sizeof(u32);
+}
+
+static inline void encode_u32_le(u8 *data, size_t *offset, u32 to_encode)
+{
+	put_unaligned_le32(to_encode, data + *offset);
+	*offset += sizeof(u32);
+}
+
+static inline void decode_u16_le(const u8 *buffer, size_t *offset, u16 *decoded)
+{
+	*decoded = get_unaligned_le16(buffer + *offset);
+	*offset += sizeof(u16);
+}
+
+static inline void encode_u16_le(u8 *data, size_t *offset, u16 to_encode)
+{
+	put_unaligned_le16(to_encode, data + *offset);
+	*offset += sizeof(u16);
+}
+
+#endif /* UDS_NUMERIC_H */
-- 
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