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path: root/fs/btrfs/free-space-cache.c
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Diffstat (limited to 'fs/btrfs/free-space-cache.c')
-rw-r--r--fs/btrfs/free-space-cache.c81
1 files changed, 17 insertions, 64 deletions
diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c
index 3613da065a73..55955bd424d7 100644
--- a/fs/btrfs/free-space-cache.c
+++ b/fs/btrfs/free-space-cache.c
@@ -82,7 +82,7 @@ static struct inode *__lookup_free_space_inode(struct btrfs_root *root,
* sure NOFS is set to keep us from deadlocking.
*/
nofs_flag = memalloc_nofs_save();
- inode = btrfs_iget_path(fs_info->sb, &location, root, path);
+ inode = btrfs_iget_path(fs_info->sb, location.objectid, root, path);
btrfs_release_path(path);
memalloc_nofs_restore(nofs_flag);
if (IS_ERR(inode))
@@ -1190,13 +1190,10 @@ out:
if (ret) {
invalidate_inode_pages2(inode->i_mapping);
BTRFS_I(inode)->generation = 0;
- if (block_group) {
-#ifdef CONFIG_BTRFS_DEBUG
- btrfs_err(root->fs_info,
- "failed to write free space cache for block group %llu",
- block_group->start);
-#endif
- }
+ if (block_group)
+ btrfs_debug(root->fs_info,
+ "failed to write free space cache for block group %llu error %d",
+ block_group->start, ret);
}
btrfs_update_inode(trans, root, inode);
@@ -1415,11 +1412,9 @@ int btrfs_write_out_cache(struct btrfs_trans_handle *trans,
ret = __btrfs_write_out_cache(fs_info->tree_root, inode, ctl,
block_group, &block_group->io_ctl, trans);
if (ret) {
-#ifdef CONFIG_BTRFS_DEBUG
- btrfs_err(fs_info,
- "failed to write free space cache for block group %llu",
- block_group->start);
-#endif
+ btrfs_debug(fs_info,
+ "failed to write free space cache for block group %llu error %d",
+ block_group->start, ret);
spin_lock(&block_group->lock);
block_group->disk_cache_state = BTRFS_DC_ERROR;
spin_unlock(&block_group->lock);
@@ -3762,46 +3757,6 @@ out:
return ret;
}
-void btrfs_get_block_group_trimming(struct btrfs_block_group *cache)
-{
- atomic_inc(&cache->trimming);
-}
-
-void btrfs_put_block_group_trimming(struct btrfs_block_group *block_group)
-{
- struct btrfs_fs_info *fs_info = block_group->fs_info;
- struct extent_map_tree *em_tree;
- struct extent_map *em;
- bool cleanup;
-
- spin_lock(&block_group->lock);
- cleanup = (atomic_dec_and_test(&block_group->trimming) &&
- block_group->removed);
- spin_unlock(&block_group->lock);
-
- if (cleanup) {
- mutex_lock(&fs_info->chunk_mutex);
- em_tree = &fs_info->mapping_tree;
- write_lock(&em_tree->lock);
- em = lookup_extent_mapping(em_tree, block_group->start,
- 1);
- BUG_ON(!em); /* logic error, can't happen */
- remove_extent_mapping(em_tree, em);
- write_unlock(&em_tree->lock);
- mutex_unlock(&fs_info->chunk_mutex);
-
- /* once for us and once for the tree */
- free_extent_map(em);
- free_extent_map(em);
-
- /*
- * We've left one free space entry and other tasks trimming
- * this block group have left 1 entry each one. Free them.
- */
- __btrfs_remove_free_space_cache(block_group->free_space_ctl);
- }
-}
-
int btrfs_trim_block_group(struct btrfs_block_group *block_group,
u64 *trimmed, u64 start, u64 end, u64 minlen)
{
@@ -3816,7 +3771,7 @@ int btrfs_trim_block_group(struct btrfs_block_group *block_group,
spin_unlock(&block_group->lock);
return 0;
}
- btrfs_get_block_group_trimming(block_group);
+ btrfs_freeze_block_group(block_group);
spin_unlock(&block_group->lock);
ret = trim_no_bitmap(block_group, trimmed, start, end, minlen, false);
@@ -3829,7 +3784,7 @@ int btrfs_trim_block_group(struct btrfs_block_group *block_group,
if (rem)
reset_trimming_bitmap(ctl, offset_to_bitmap(ctl, end));
out:
- btrfs_put_block_group_trimming(block_group);
+ btrfs_unfreeze_block_group(block_group);
return ret;
}
@@ -3846,11 +3801,11 @@ int btrfs_trim_block_group_extents(struct btrfs_block_group *block_group,
spin_unlock(&block_group->lock);
return 0;
}
- btrfs_get_block_group_trimming(block_group);
+ btrfs_freeze_block_group(block_group);
spin_unlock(&block_group->lock);
ret = trim_no_bitmap(block_group, trimmed, start, end, minlen, async);
- btrfs_put_block_group_trimming(block_group);
+ btrfs_unfreeze_block_group(block_group);
return ret;
}
@@ -3868,13 +3823,13 @@ int btrfs_trim_block_group_bitmaps(struct btrfs_block_group *block_group,
spin_unlock(&block_group->lock);
return 0;
}
- btrfs_get_block_group_trimming(block_group);
+ btrfs_freeze_block_group(block_group);
spin_unlock(&block_group->lock);
ret = trim_bitmaps(block_group, trimmed, start, end, minlen, maxlen,
async);
- btrfs_put_block_group_trimming(block_group);
+ btrfs_unfreeze_block_group(block_group);
return ret;
}
@@ -4035,11 +3990,9 @@ int btrfs_write_out_ino_cache(struct btrfs_root *root,
if (release_metadata)
btrfs_delalloc_release_metadata(BTRFS_I(inode),
inode->i_size, true);
-#ifdef CONFIG_BTRFS_DEBUG
- btrfs_err(fs_info,
- "failed to write free ino cache for root %llu",
- root->root_key.objectid);
-#endif
+ btrfs_debug(fs_info,
+ "failed to write free ino cache for root %llu error %d",
+ root->root_key.objectid, ret);
}
return ret;