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From: John Baldwin <jhb@FreeBSD.org>
Date: Thu, 21 May 2009 16:18:45 +0000 (UTC)
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Subject: svn commit: r192543 - head/sys/kern
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Author: jhb
Date: Thu May 21 16:18:45 2009
New Revision: 192543
URL: http://svn.freebsd.org/changeset/base/192543

Log:
  Only use the ABI compat shim for vfs.bufspace if the old buffer is smaller
  than a long.
  
  PR:		amd64/134786
  Submitted by:	Emil Mikulic  emikulic| gmail
  MFC after:	3 days

Modified:
  head/sys/kern/vfs_bio.c

Modified: head/sys/kern/vfs_bio.c
==============================================================================
--- head/sys/kern/vfs_bio.c	Thu May 21 15:30:59 2009	(r192542)
+++ head/sys/kern/vfs_bio.c	Thu May 21 16:18:45 2009	(r192543)
@@ -293,7 +293,7 @@ sysctl_bufspace(SYSCTL_HANDLER_ARGS)
 	long lvalue;
 	int ivalue;
 
-	if (sizeof(int) == sizeof(long) || req->oldlen == sizeof(long))
+	if (sizeof(int) == sizeof(long) || req->oldlen >= sizeof(long))
 		return (sysctl_handle_long(oidp, arg1, arg2, req));
 	lvalue = *(long *)arg1;
 	if (lvalue > INT_MAX)