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author | mm <mm@FreeBSD.org> | 2013-03-19 12:51:18 +0000 |
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committer | mm <mm@FreeBSD.org> | 2013-03-19 12:51:18 +0000 |
commit | 7c87858955593be19a80e57b7353b09f5587ae9b (patch) | |
tree | 68fb8eac18f4259926de9bd4d4ecba5b46b638c3 /sys/cddl/contrib/opensolaris/uts/common/fs/zfs/metaslab.c | |
parent | c94cc27299ba2ab2acf00ca31ec90c92a37b16f7 (diff) | |
parent | 09a831de87c71a9f94f38dbd36b73746467e3182 (diff) | |
download | FreeBSD-src-7c87858955593be19a80e57b7353b09f5587ae9b.zip FreeBSD-src-7c87858955593be19a80e57b7353b09f5587ae9b.tar.gz |
MFV r247580:
Merge synctask code restructuring from vendor.
Modify forward and backward compatibility to support new change.
Illumos ZFS issues:
3464 zfs synctask code needs restructuring
Sponsored by: Hybrid Logic Ltd.
Diffstat (limited to 'sys/cddl/contrib/opensolaris/uts/common/fs/zfs/metaslab.c')
-rw-r--r-- | sys/cddl/contrib/opensolaris/uts/common/fs/zfs/metaslab.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/metaslab.c b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/metaslab.c index d6651f9..56c3107 100644 --- a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/metaslab.c +++ b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/metaslab.c @@ -1875,3 +1875,41 @@ metaslab_claim(spa_t *spa, const blkptr_t *bp, uint64_t txg) return (error); } + +static void +checkmap(space_map_t *sm, uint64_t off, uint64_t size) +{ + space_seg_t *ss; + avl_index_t where; + + mutex_enter(sm->sm_lock); + ss = space_map_find(sm, off, size, &where); + if (ss != NULL) + panic("freeing free block; ss=%p", (void *)ss); + mutex_exit(sm->sm_lock); +} + +void +metaslab_check_free(spa_t *spa, const blkptr_t *bp) +{ + if ((zfs_flags & ZFS_DEBUG_ZIO_FREE) == 0) + return; + + spa_config_enter(spa, SCL_VDEV, FTAG, RW_READER); + for (int i = 0; i < BP_GET_NDVAS(bp); i++) { + uint64_t vdid = DVA_GET_VDEV(&bp->blk_dva[i]); + vdev_t *vd = vdev_lookup_top(spa, vdid); + uint64_t off = DVA_GET_OFFSET(&bp->blk_dva[i]); + uint64_t size = DVA_GET_ASIZE(&bp->blk_dva[i]); + metaslab_t *ms = vd->vdev_ms[off >> vd->vdev_ms_shift]; + + if (ms->ms_map->sm_loaded) + checkmap(ms->ms_map, off, size); + + for (int j = 0; j < TXG_SIZE; j++) + checkmap(ms->ms_freemap[j], off, size); + for (int j = 0; j < TXG_DEFER_SIZE; j++) + checkmap(ms->ms_defermap[j], off, size); + } + spa_config_exit(spa, SCL_VDEV, FTAG); +} |