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Date:      Mon, 6 Nov 2017 15:29:33 +0000 (UTC)
From:      Andriy Gapon <avg@FreeBSD.org>
To:        src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org
Subject:   svn commit: r325486 - head
Message-ID:  <201711061529.vA6FTXvM037081@repo.freebsd.org>

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Author: avg
Date: Mon Nov  6 15:29:33 2017
New Revision: 325486
URL: https://svnweb.freebsd.org/changeset/base/325486

Log:
  Add an UPDATING entry for the posix_fallocate/ZFS change, r325320

Modified:
  head/UPDATING

Modified: head/UPDATING
==============================================================================
--- head/UPDATING	Mon Nov  6 15:22:24 2017	(r325485)
+++ head/UPDATING	Mon Nov  6 15:29:33 2017	(r325486)
@@ -51,6 +51,13 @@ NOTE TO PEOPLE WHO THINK THAT FreeBSD 12.x IS SLOW:
 
 ****************************** SPECIAL WARNING: ******************************
 
+20171106:
+	The naive and non-compliant support of posix_fallocate(2) in ZFS
+	has been removed as of r325320.  The system call now returns EINVAL
+	when used on a ZFS file.  Although the new behavior complies with the
+	standard, some consumers are not prepared to cope with it.
+	One known victim is lld prior to r325420.
+
 20171102:
 	Building in a FreeBSD src checkout will automatically create object
 	directories now rather than store files in the current directory if



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