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From: Ed Maste <emaste@FreeBSD.org>
Date: Sun, 5 Nov 2017 03:02:19 +0000 (UTC)
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Subject: svn commit: r325422 - head/lib/libc/sys
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Author: emaste
Date: Sun Nov  5 03:02:19 2017
New Revision: 325422
URL: https://svnweb.freebsd.org/changeset/base/325422

Log:
  posix_fallocate.2: add an EINVAL errno case
  
  As of r325320 posix_fallocate returns EINVAL on ZFS to indicate that
  the underlying filesystem does not support this operation, per
  POSIX.1-2008. Document this case in the man page.
  
  MFC after:	20 days
  MFC with:	r325320
  Sponsored by:	The FreeBSD Foundation

Modified:
  head/lib/libc/sys/posix_fallocate.2

Modified: head/lib/libc/sys/posix_fallocate.2
==============================================================================
--- head/lib/libc/sys/posix_fallocate.2	Sun Nov  5 02:47:46 2017	(r325421)
+++ head/lib/libc/sys/posix_fallocate.2	Sun Nov  5 03:02:19 2017	(r325422)
@@ -28,7 +28,7 @@
 .\"     @(#)open.2	8.2 (Berkeley) 11/16/93
 .\" $FreeBSD$
 .\"
-.Dd October 12, 2017
+.Dd November 4, 2017
 .Dt POSIX_FALLOCATE 2
 .Os
 .Sh NAME
@@ -106,9 +106,10 @@ A signal was caught during execution.
 .It Bq Er EINVAL
 The
 .Fa len
-argument was less than or equal to zero or the
+argument was less than or equal to zero, the
 .Fa offset
-argument was less than zero.
+argument was less than zero,
+or the operation is not supported by the file system.
 .It Bq Er EIO
 An I/O error occurred while reading from or writing to a file system.
 .It Bq Er ENODEV