btrfs tests: replace whole ops structure for free space tests
Preparatory work for making btrfs_free_space_op constant. In test_steal_space_from_bitmap_to_extent, we substitute use_bitmap with own version thus preventing constification. We can rework it so we replace the whole structure with the correct function pointers. Signed-off-by: David Sterba <dsterba@suse.com>
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@ -445,9 +445,11 @@ test_steal_space_from_bitmap_to_extent(struct btrfs_block_group_cache *cache)
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int ret;
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u64 offset;
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u64 max_extent_size;
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bool (*use_bitmap_op)(struct btrfs_free_space_ctl *,
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struct btrfs_free_space *);
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struct btrfs_free_space_op test_free_space_ops = {
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.recalc_thresholds = cache->free_space_ctl->op->recalc_thresholds,
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.use_bitmap = test_use_bitmap,
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};
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struct btrfs_free_space_op *orig_free_space_ops;
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test_msg("Running space stealing from bitmap to extent\n");
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@ -469,8 +471,8 @@ test_steal_space_from_bitmap_to_extent(struct btrfs_block_group_cache *cache)
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* that forces use of bitmaps as soon as we have at least 1
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* extent entry.
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*/
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use_bitmap_op = cache->free_space_ctl->op->use_bitmap;
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cache->free_space_ctl->op->use_bitmap = test_use_bitmap;
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orig_free_space_ops = cache->free_space_ctl->op;
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cache->free_space_ctl->op = &test_free_space_ops;
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/*
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* Extent entry covering free space range [128Mb - 256Kb, 128Mb - 128Kb[
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@ -877,7 +879,7 @@ test_steal_space_from_bitmap_to_extent(struct btrfs_block_group_cache *cache)
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if (ret)
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return ret;
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cache->free_space_ctl->op->use_bitmap = use_bitmap_op;
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cache->free_space_ctl->op = orig_free_space_ops;
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__btrfs_remove_free_space_cache(cache->free_space_ctl);
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return 0;
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