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Btrfs: convert all bug_ons in free-space-cache.c
All of these are logic checks to make sure we're not breaking anything, so convert them over to ASSERT(). Thanks, Signed-off-by: Josef Bacik <jbacik@fusionio.com> Signed-off-by: Chris Mason <chris.mason@fusionio.com>
This commit is contained in:
parent
2e17c7c65e
commit
b12d6869f6
1 changed files with 14 additions and 14 deletions
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@ -308,7 +308,7 @@ static void io_ctl_unmap_page(struct io_ctl *io_ctl)
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static void io_ctl_map_page(struct io_ctl *io_ctl, int clear)
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{
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BUG_ON(io_ctl->index >= io_ctl->num_pages);
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ASSERT(io_ctl->index < io_ctl->num_pages);
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io_ctl->page = io_ctl->pages[io_ctl->index++];
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io_ctl->cur = kmap(io_ctl->page);
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io_ctl->orig = io_ctl->cur;
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@ -728,7 +728,7 @@ static int __load_free_space_cache(struct btrfs_root *root, struct inode *inode,
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goto free_cache;
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}
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} else {
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BUG_ON(!num_bitmaps);
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ASSERT(num_bitmaps);
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num_bitmaps--;
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e->bitmap = kzalloc(PAGE_CACHE_SIZE, GFP_NOFS);
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if (!e->bitmap) {
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@ -1028,7 +1028,7 @@ static int __btrfs_write_out_cache(struct btrfs_root *root, struct inode *inode,
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leaf = path->nodes[0];
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if (ret > 0) {
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struct btrfs_key found_key;
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BUG_ON(!path->slots[0]);
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ASSERT(path->slots[0]);
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path->slots[0]--;
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btrfs_item_key_to_cpu(leaf, &found_key, path->slots[0]);
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if (found_key.objectid != BTRFS_FREE_SPACE_OBJECTID ||
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@ -1116,7 +1116,7 @@ int btrfs_write_out_cache(struct btrfs_root *root,
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static inline unsigned long offset_to_bit(u64 bitmap_start, u32 unit,
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u64 offset)
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{
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BUG_ON(offset < bitmap_start);
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ASSERT(offset >= bitmap_start);
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offset -= bitmap_start;
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return (unsigned long)(div_u64(offset, unit));
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}
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@ -1271,7 +1271,7 @@ tree_search_offset(struct btrfs_free_space_ctl *ctl,
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if (n) {
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entry = rb_entry(n, struct btrfs_free_space,
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offset_index);
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BUG_ON(entry->offset > offset);
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ASSERT(entry->offset <= offset);
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} else {
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if (fuzzy)
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return entry;
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@ -1335,7 +1335,7 @@ static int link_free_space(struct btrfs_free_space_ctl *ctl,
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{
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int ret = 0;
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BUG_ON(!info->bitmap && !info->bytes);
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ASSERT(info->bytes || info->bitmap);
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ret = tree_insert_offset(&ctl->free_space_offset, info->offset,
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&info->offset_index, (info->bitmap != NULL));
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if (ret)
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@ -1358,7 +1358,7 @@ static void recalculate_thresholds(struct btrfs_free_space_ctl *ctl)
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max_bitmaps = max(max_bitmaps, 1);
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BUG_ON(ctl->total_bitmaps > max_bitmaps);
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ASSERT(ctl->total_bitmaps <= max_bitmaps);
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/*
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* The goal is to keep the total amount of memory used per 1gb of space
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@ -1402,7 +1402,7 @@ static inline void __bitmap_clear_bits(struct btrfs_free_space_ctl *ctl,
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start = offset_to_bit(info->offset, ctl->unit, offset);
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count = bytes_to_bits(bytes, ctl->unit);
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BUG_ON(start + count > BITS_PER_BITMAP);
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ASSERT(start + count <= BITS_PER_BITMAP);
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bitmap_clear(info->bitmap, start, count);
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@ -1425,7 +1425,7 @@ static void bitmap_set_bits(struct btrfs_free_space_ctl *ctl,
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start = offset_to_bit(info->offset, ctl->unit, offset);
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count = bytes_to_bits(bytes, ctl->unit);
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BUG_ON(start + count > BITS_PER_BITMAP);
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ASSERT(start + count <= BITS_PER_BITMAP);
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bitmap_set(info->bitmap, start, count);
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@ -1741,7 +1741,7 @@ static int insert_into_bitmap(struct btrfs_free_space_ctl *ctl,
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bitmap_info = tree_search_offset(ctl, offset_to_bitmap(ctl, offset),
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1, 0);
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if (!bitmap_info) {
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BUG_ON(added);
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ASSERT(added == 0);
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goto new_bitmap;
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}
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@ -1881,7 +1881,7 @@ int __btrfs_add_free_space(struct btrfs_free_space_ctl *ctl,
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if (ret) {
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printk(KERN_CRIT "btrfs: unable to add free space :%d\n", ret);
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BUG_ON(ret == -EEXIST);
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ASSERT(ret != -EEXIST);
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}
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return ret;
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@ -2369,7 +2369,7 @@ static int btrfs_bitmap_cluster(struct btrfs_block_group_cache *block_group,
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rb_erase(&entry->offset_index, &ctl->free_space_offset);
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ret = tree_insert_offset(&cluster->root, entry->offset,
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&entry->offset_index, 1);
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BUG_ON(ret); /* -EEXIST; Logic error */
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ASSERT(!ret); /* -EEXIST; Logic error */
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trace_btrfs_setup_cluster(block_group, cluster,
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total_found * ctl->unit, 1);
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@ -2462,7 +2462,7 @@ setup_cluster_no_bitmap(struct btrfs_block_group_cache *block_group,
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ret = tree_insert_offset(&cluster->root, entry->offset,
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&entry->offset_index, 0);
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total_size += entry->bytes;
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BUG_ON(ret); /* -EEXIST; Logic error */
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ASSERT(!ret); /* -EEXIST; Logic error */
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} while (node && entry != last);
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cluster->max_size = max_extent;
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@ -2853,7 +2853,7 @@ u64 btrfs_find_ino_for_alloc(struct btrfs_root *fs_root)
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ret = search_bitmap(ctl, entry, &offset, &count);
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/* Logic error; Should be empty if it can't find anything */
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BUG_ON(ret);
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ASSERT(!ret);
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ino = offset;
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bitmap_clear_bits(ctl, entry, offset, 1);
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