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From: Andriy Gapon <avg@FreeBSD.org>
Date: Tue, 26 Nov 2013 10:46:44 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
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Subject: svn commit: r258638 -
 head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs
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Author: avg
Date: Tue Nov 26 10:46:43 2013
New Revision: 258638
URL: http://svnweb.freebsd.org/changeset/base/258638

Log:
  expose zfs_flags as debug.zfs_flags r/w tunable and sysctl
  
  This knob is purposefully hidden under debug.
  
  MFC after:	5 days
  Sponsored by:	HybridCluster

Modified:
  head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/spa_misc.c

Modified: head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/spa_misc.c
==============================================================================
--- head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/spa_misc.c	Tue Nov 26 10:34:34 2013	(r258637)
+++ head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/spa_misc.c	Tue Nov 26 10:46:43 2013	(r258638)
@@ -243,6 +243,10 @@ int zfs_flags = ~(ZFS_DEBUG_DPRINTF | ZF
 #else
 int zfs_flags = 0;
 #endif
+SYSCTL_DECL(_debug);
+TUNABLE_INT("debug.zfs_flags", &zfs_flags);
+SYSCTL_INT(_debug, OID_AUTO, zfs_flags, CTLFLAG_RWTUN, &zfs_flags, 0,
+    "Try to recover from otherwise-fatal errors.");
 
 /*
  * zfs_recover can be set to nonzero to attempt to recover from