Author: emaste
Date: Tue Oct 17 02:51:45 2017
New Revision: 324683
URL: https://svnweb.freebsd.org/changeset/base/324683
Log:
write.2: correct maximum nbytes size for EINVAL error
In FreeBSD 11 and later debug.iosize_max_clamp defaults to 0, and the
maximum nbytes count for write(2) is SSIZE_MAX. Update the man page to
document this, and mention the sysctl that can be set to obtain the
previous behaviour.
PR: 196666
MFC after: 1 week
Sponsored by: The FreeBSD Foundation
Added:
head/lib/libstand/
- copied from r324627, head/lib/libstand/
Modified:
head/lib/libc/sys/write.2
Modified: head/lib/libc/sys/write.2
==============================================================================
--- head/lib/libc/sys/write.2 Tue Oct 17 01:15:55 2017 (r324682)
+++ head/lib/libc/sys/write.2 Tue Oct 17 02:51:45 2017 (r324683)
@@ -28,7 +28,7 @@
.\" @(#)write.2 8.5 (Berkeley) 4/2/94
.\" $FreeBSD$
.\"
-.Dd December 15, 2015
+.Dd October 16, 2017
.Dt WRITE 2
.Os
.Sh NAME
@@ -199,7 +199,12 @@ to enable writing on the disk label area.
The value
.Fa nbytes
is greater than
-.Dv INT_MAX .
+.Dv SSIZE_MAX
+(or greater than
+.Dv INT_MAX ,
+if the sysctl
+.Va debug.iosize_max_clamp
+is non-zero).
.El
.Pp
In addition,
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