From ec0209418fa613e0ee306daf91a9f7208aee6e10 Mon Sep 17 00:00:00 2001
From: Rob Norris <rob.norris@klarasystems.com>
Date: Wed, 18 Sep 2024 06:53:39 +1000
Subject: [PATCH] sa_impl: fix SA header bitfield docs

Off by one, confused me a while!

Sponsored-by: Klara, Inc.
Sponsored-by: Wasabi Technology, Inc.
Reviewed by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Reviewed-by: Tino Reichardt <milky-zfs@mcmilk.de>
Signed-off-by: Rob Norris <rob.norris@klarasystems.com>
Closes #16500
---
 include/sys/sa_impl.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/sys/sa_impl.h b/include/sys/sa_impl.h
index 6eb0c9618..3632e5c99 100644
--- a/include/sys/sa_impl.h
+++ b/include/sys/sa_impl.h
@@ -167,8 +167,8 @@ typedef struct sa_hdr_phys {
 	 * | hdrsz  |layout |
 	 * +--------+-------+
 	 *
-	 * Bits 0-10 are the layout number
-	 * Bits 11-16 are the size of the header.
+	 * Bits 0-9 (10 bits) are the layout number (0-1023)
+	 * Bits 10-15 (6 bits) are the size of the header (0-63)
 	 * The hdrsize is the number * 8
 	 *
 	 * For example.