diff options
| author | Tim Chase <[email protected]> | 2014-08-14 07:01:20 -0500 |
|---|---|---|
| committer | Brian Behlendorf <[email protected]> | 2014-08-18 08:47:19 -0700 |
| commit | 8b0a0840b405c67d7a2d4a78c9ebeb04fcb9d988 (patch) | |
| tree | 4e867c32ab71ed05429d175a34f405ba58672889 /module/zfs/metaslab.c | |
| parent | f3a7f6610f2df0217ba3b99099019417a954b673 (diff) | |
Don't upgrade a metaslab when the pool is not writable
Illumos 4982 added code to metaslab_fragmentation() to proactively update
space maps when the spacemap_histogram feature is enabled. This should
only happen when the pool is writeable.
References:
https://www.illumos.org/issues/4982
https://github.com/illumos/illumos-gate/commit/2e4c998
Signed-off-by: Tim Chase <[email protected]>
Signed-off-by: Brian Behlendorf <[email protected]>
Closes #2595
Diffstat (limited to 'module/zfs/metaslab.c')
| -rw-r--r-- | module/zfs/metaslab.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/module/zfs/metaslab.c b/module/zfs/metaslab.c index 68a1591c2..098d73f95 100644 --- a/module/zfs/metaslab.c +++ b/module/zfs/metaslab.c @@ -1395,13 +1395,16 @@ metaslab_fragmentation(metaslab_t *msp) * so that we upgrade next time we encounter it. */ if (msp->ms_sm->sm_dbuf->db_size != sizeof (space_map_phys_t)) { - uint64_t txg = spa_syncing_txg(spa); vdev_t *vd = msp->ms_group->mg_vd; - msp->ms_condense_wanted = B_TRUE; - vdev_dirty(vd, VDD_METASLAB, msp, txg + 1); - spa_dbgmsg(spa, "txg %llu, requesting force condense: " - "msp %p, vd %p", txg, msp, vd); + if (spa_writeable(vd->vdev_spa)) { + uint64_t txg = spa_syncing_txg(spa); + + msp->ms_condense_wanted = B_TRUE; + vdev_dirty(vd, VDD_METASLAB, msp, txg + 1); + spa_dbgmsg(spa, "txg %llu, requesting force condense: " + "msp %p, vd %p", txg, msp, vd); + } return (ZFS_FRAG_INVALID); } |