From 44b0b943b8f30c8df926c413323c1fd5594ad7a7 Mon Sep 17 00:00:00 2001
From: Benedict Reuschling <bcr@FreeBSD.org>
Date: Sat, 8 Oct 2022 10:23:51 +0000
Subject: [PATCH] Revert "Add extra EINVAL information about wrong block size
 to read(2)/write(2)"

This reverts commit 1c2be25f6080ee63baeae55e45761e1310d1b756.

kib@ pointed out that it is perfectly fine to write at arbitrary regular
file offsets. For example, in a 4K block size character device, geom
doesn't support writing / reading 515 byte blocks. The description is
perhaps not applicable to all EINVALs returned.
---
 lib/libc/sys/read.2  | 4 +---
 lib/libc/sys/write.2 | 4 +---
 2 files changed, 2 insertions(+), 6 deletions(-)

diff --git a/lib/libc/sys/read.2 b/lib/libc/sys/read.2
index 28d085562af3..8b58debd3fbb 100644
--- a/lib/libc/sys/read.2
+++ b/lib/libc/sys/read.2
@@ -28,7 +28,7 @@
 .\"     @(#)read.2	8.4 (Berkeley) 2/26/94
 .\" $FreeBSD$
 .\"
-.Dd October 7, 2022
+.Dd June 4, 2020
 .Dt READ 2
 .Os
 .Sh NAME
@@ -250,8 +250,6 @@ The sum of the
 values in the
 .Fa iov
 array overflowed a 32-bit integer.
-.It Bq Er EINVAL
-The current file offset is not a multiple of the block size.
 .It Bq Er EFAULT
 Part of the
 .Fa iov
diff --git a/lib/libc/sys/write.2 b/lib/libc/sys/write.2
index 048338ed4dee..937e95b53a14 100644
--- a/lib/libc/sys/write.2
+++ b/lib/libc/sys/write.2
@@ -28,7 +28,7 @@
 .\"     @(#)write.2	8.5 (Berkeley) 4/2/94
 .\" $FreeBSD$
 .\"
-.Dd October 7, 2022
+.Dd February 11, 2021
 .Dt WRITE 2
 .Os
 .Sh NAME
@@ -205,8 +205,6 @@ is greater than
 if the sysctl
 .Va debug.iosize_max_clamp
 is non-zero).
-.It Bq Er EINVAL
-The current file offset is not a multiple of the block size.
 .It Bq Er EINTEGRITY
 The backing store for
 .Fa fd