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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>
This commit is contained in:
David Sterba 2015-11-19 11:42:24 +01:00
parent 100d57025c
commit 28f0779a3f
1 changed files with 8 additions and 6 deletions
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14
fs/btrfs/tests/free-space-tests.c
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@ -445,9 +445,11 @@ test_steal_space_from_bitmap_to_extent(struct btrfs_block_group_cache *cache)
int ret;
u64 offset;
u64 max_extent_size;
bool (*use_bitmap_op)(struct btrfs_free_space_ctl *,
struct btrfs_free_space *);
struct btrfs_free_space_op test_free_space_ops = {
.recalc_thresholds = cache->free_space_ctl->op->recalc_thresholds,
.use_bitmap = test_use_bitmap,
};
struct btrfs_free_space_op *orig_free_space_ops;
test_msg("Running space stealing from bitmap to extent\n");
@ -469,8 +471,8 @@ test_steal_space_from_bitmap_to_extent(struct btrfs_block_group_cache *cache)
* that forces use of bitmaps as soon as we have at least 1
* extent entry.
*/
use_bitmap_op = cache->free_space_ctl->op->use_bitmap;
cache->free_space_ctl->op->use_bitmap = test_use_bitmap;
orig_free_space_ops = cache->free_space_ctl->op;
cache->free_space_ctl->op = &test_free_space_ops;
/*
* Extent entry covering free space range [128Mb - 256Kb, 128Mb - 128Kb[
@ -877,7 +879,7 @@ test_steal_space_from_bitmap_to_extent(struct btrfs_block_group_cache *cache)
if (ret)
return ret;
cache->free_space_ctl->op->use_bitmap = use_bitmap_op;
cache->free_space_ctl->op = orig_free_space_ops;
__btrfs_remove_free_space_cache(cache->free_space_ctl);
return 0;