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OpenZFS 7545 - zdb should disable reference tracking

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Authored by: Matthew Ahrens <mahrens@delphix.com>
Reviewed by: Dan Kimmel <dan.kimmel@delphix.com>
Reviewed by: Steve Gonczi <steve.gonczi@delphix.com>
Reviewed by: George Wilson <george.wilson@delphix.com>
Approved by: Robert Mustacchi <rm@joyent.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Ported-by: Giuseppe Di Natale <dinatale2@llnl.gov>

Porting Notes: Moved reference_tracking_enable and
reference_history outside of ZFS_DEBUG.

OpenZFS-issue: https://www.illumos.org/issues/7545
OpenZFS-commit: https://github.com/openzfs/openzfs/commit/4dd77f9
Closes #5701
This commit is contained in:
Giuseppe Di Natale 2017-01-31 14:36:35 -08:00 committed by Brian Behlendorf
parent 3d91261599
commit d69a321e56
2 changed files with 8 additions and 2 deletions
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7
cmd/zdb/zdb.c
View File

@ -84,10 +84,12 @@ zdb_ot_name(dmu_object_type_t type)
}
#ifndef lint
extern int reference_tracking_enable;
extern int zfs_recover;
extern uint64_t zfs_arc_max, zfs_arc_meta_limit;
extern int zfs_vdev_async_read_max_active;
#else
int reference_tracking_enable;
int zfs_recover;
uint64_t zfs_arc_max, zfs_arc_meta_limit;
int zfs_vdev_async_read_max_active;
@ -3813,6 +3815,11 @@ main(int argc, char **argv)
*/
zfs_vdev_async_read_max_active = 10;
/*
* Disable reference tracking for better performance.
*/
reference_tracking_enable = B_FALSE;
kernel_init(FREAD);
if ((g_zfs = libzfs_init()) == NULL) {
(void) fprintf(stderr, "%s", libzfs_error_init(errno));

3
module/zfs/refcount.c
View File

@ -26,8 +26,6 @@
#include <sys/zfs_context.h>
#include <sys/refcount.h>
#ifdef ZFS_DEBUG
#ifdef _KERNEL
int reference_tracking_enable = FALSE; /* runs out of memory too easily */
#else
@ -35,6 +33,7 @@ int reference_tracking_enable = TRUE;
#endif
int reference_history = 3; /* tunable */
#ifdef ZFS_DEBUG
static kmem_cache_t *reference_cache;
static kmem_cache_t *reference_history_cache;