svn commit: r348068 - head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs

[Allan Jude]

Author: allanjude
Date: Tue May 21 21:26:18 2019
New Revision: 348068
URL: https://svnweb.freebsd.org/changeset/base/348068

Log:
  ZFS: Make deadman tunables no longer read-only
  
  This allows the user to enable, disable, and adjust the I/O deadman at
  runtime. This can be especially useful when a pool is backed by remote
  storage (such as iscsi, ggated, etc).
  
  PR:		221906
  Submitted by:	Fabian Keil <fk at fabiankeil.de>
  Obtained from:	ElectroBSD
  MFC after:	1 week
  Sponsored by:	Klara Systems
  Event:		Waterloo Hackathon 2019

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 May 21 21:26:14 2019	(r348067)
+++ head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/spa_misc.c	Tue May 21 21:26:18 2019	(r348068)
@@ -363,13 +363,13 @@ SYSCTL_PROC(_vfs_zfs, OID_AUTO, debugflags,
     CTLTYPE_UINT | CTLFLAG_MPSAFE | CTLFLAG_RWTUN, 0, sizeof(int),
     sysctl_vfs_zfs_debug_flags, "IU", "Debug flags for ZFS testing.");
 
-SYSCTL_UQUAD(_vfs_zfs, OID_AUTO, deadman_synctime_ms, CTLFLAG_RDTUN,
+SYSCTL_UQUAD(_vfs_zfs, OID_AUTO, deadman_synctime_ms, CTLFLAG_RWTUN,
     &zfs_deadman_synctime_ms, 0,
     "Stalled ZFS I/O expiration time in milliseconds");
-SYSCTL_UQUAD(_vfs_zfs, OID_AUTO, deadman_checktime_ms, CTLFLAG_RDTUN,
+SYSCTL_UQUAD(_vfs_zfs, OID_AUTO, deadman_checktime_ms, CTLFLAG_RwTUN,
     &zfs_deadman_checktime_ms, 0,
     "Period of checks for stalled ZFS I/O in milliseconds");
-SYSCTL_INT(_vfs_zfs, OID_AUTO, deadman_enabled, CTLFLAG_RDTUN,
+SYSCTL_INT(_vfs_zfs, OID_AUTO, deadman_enabled, CTLFLAG_RWTUN,
     &zfs_deadman_enabled, 0, "Kernel panic on stalled ZFS I/O");
 SYSCTL_INT(_vfs_zfs, OID_AUTO, spa_asize_inflation, CTLFLAG_RWTUN,
     &spa_asize_inflation, 0, "Worst case inflation factor for single sector writes");