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Illumos #3598

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3598 want to dtrace when errors are generated in zfs
Reviewed by: Dan Kimmel <dan.kimmel@delphix.com>
Reviewed by: Adam Leventhal <ahl@delphix.com>
Reviewed by: Christopher Siden <christopher.siden@delphix.com>
Approved by: Garrett D'Amore <garrett@damore.org>

References:
  https://www.illumos.org/issues/3598
  illumos/illumos-gate@be6fd75a69

Ported-by: Richard Yao <ryao@gentoo.org>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Issue #1775

Porting notes:

1. include/sys/zfs_context.h has been modified to render some new
   macros inert until dtrace is available on Linux.

2. Linux-specific changes have been adapted to use SET_ERROR().

3. I'm NOT happy about this change.  It does nothing but ugly
   up the code under Linux.  Unfortunately we need to take it to
   avoid more merge conflicts in the future.  -Brian
This commit is contained in:
Matthew Ahrens
2013-03-08 10:41:28 -08:00
committed by Brian Behlendorf
parent 7011fb6004
commit 2e528b49f8
56 changed files with 830 additions and 793 deletions
Download Patch File Download Diff File Expand all files Collapse all files
module/zfs/metaslab.c
+8 -6
View File
@@ -20,7 +20,8 @@
*/
/*
* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2012 by Delphix. All rights reserved.
* Copyright (c) 2013 by Delphix. All rights reserved.
* Copyright (c) 2013 by Saso Kiselkov. All rights reserved.
*/
#include <sys/zfs_context.h>
@@ -1529,7 +1530,7 @@ metaslab_alloc_dva(spa_t *spa, metaslab_class_t *mc, uint64_t psize,
* For testing, make some blocks above a certain size be gang blocks.
*/
if (psize >= metaslab_gang_bang && (ddi_get_lbolt() & 3) == 0)
return (ENOSPC);
return (SET_ERROR(ENOSPC));
if (flags & METASLAB_FASTWRITE)
mutex_enter(&mc->mc_fastwrite_lock);
@@ -1712,7 +1713,8 @@ next:
if (flags & METASLAB_FASTWRITE)
mutex_exit(&mc->mc_fastwrite_lock);
return (ENOSPC);
return (SET_ERROR(ENOSPC));
}
/*
@@ -1781,7 +1783,7 @@ metaslab_claim_dva(spa_t *spa, const dva_t *dva, uint64_t txg)
if ((vd = vdev_lookup_top(spa, vdev)) == NULL ||
(offset >> vd->vdev_ms_shift) >= vd->vdev_ms_count)
return (ENXIO);
return (SET_ERROR(ENXIO));
msp = vd->vdev_ms[offset >> vd->vdev_ms_shift];
@@ -1794,7 +1796,7 @@ metaslab_claim_dva(spa_t *spa, const dva_t *dva, uint64_t txg)
error = metaslab_activate(msp, METASLAB_WEIGHT_SECONDARY);
if (error == 0 && !space_map_contains(msp->ms_map, offset, size))
error = ENOENT;
error = SET_ERROR(ENOENT);
if (error || txg == 0) { /* txg == 0 indicates dry run */
mutex_exit(&msp->ms_lock);
@@ -1829,7 +1831,7 @@ metaslab_alloc(spa_t *spa, metaslab_class_t *mc, uint64_t psize, blkptr_t *bp,
if (mc->mc_rotor == NULL) { /* no vdevs in this class */
spa_config_exit(spa, SCL_ALLOC, FTAG);
return (ENOSPC);
return (SET_ERROR(ENOSPC));
}
ASSERT(ndvas > 0 && ndvas <= spa_max_replication(spa));