From b12d6869f67a95692017d26313ea5736d4043d0f Mon Sep 17 00:00:00 2001 From: Josef Bacik Date: Mon, 26 Aug 2013 17:14:08 -0400 Subject: 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 Signed-off-by: Chris Mason --- fs/btrfs/free-space-cache.c | 28 ++++++++++++++-------------- 1 file changed, 14 insertions(+), 14 deletions(-) (limited to 'fs/btrfs') diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c index 23182648976b..ef3bea7bb257 100644 --- a/fs/btrfs/free-space-cache.c +++ b/fs/btrfs/free-space-cache.c @@ -308,7 +308,7 @@ static void io_ctl_unmap_page(struct io_ctl *io_ctl) static void io_ctl_map_page(struct io_ctl *io_ctl, int clear) { - BUG_ON(io_ctl->index >= io_ctl->num_pages); + ASSERT(io_ctl->index < io_ctl->num_pages); io_ctl->page = io_ctl->pages[io_ctl->index++]; io_ctl->cur = kmap(io_ctl->page); io_ctl->orig = io_ctl->cur; @@ -728,7 +728,7 @@ static int __load_free_space_cache(struct btrfs_root *root, struct inode *inode, goto free_cache; } } else { - BUG_ON(!num_bitmaps); + ASSERT(num_bitmaps); num_bitmaps--; e->bitmap = kzalloc(PAGE_CACHE_SIZE, GFP_NOFS); if (!e->bitmap) { @@ -1028,7 +1028,7 @@ static int __btrfs_write_out_cache(struct btrfs_root *root, struct inode *inode, leaf = path->nodes[0]; if (ret > 0) { struct btrfs_key found_key; - BUG_ON(!path->slots[0]); + ASSERT(path->slots[0]); path->slots[0]--; btrfs_item_key_to_cpu(leaf, &found_key, path->slots[0]); if (found_key.objectid != BTRFS_FREE_SPACE_OBJECTID || @@ -1116,7 +1116,7 @@ int btrfs_write_out_cache(struct btrfs_root *root, static inline unsigned long offset_to_bit(u64 bitmap_start, u32 unit, u64 offset) { - BUG_ON(offset < bitmap_start); + ASSERT(offset >= bitmap_start); offset -= bitmap_start; return (unsigned long)(div_u64(offset, unit)); } @@ -1271,7 +1271,7 @@ tree_search_offset(struct btrfs_free_space_ctl *ctl, if (n) { entry = rb_entry(n, struct btrfs_free_space, offset_index); - BUG_ON(entry->offset > offset); + ASSERT(entry->offset <= offset); } else { if (fuzzy) return entry; @@ -1335,7 +1335,7 @@ static int link_free_space(struct btrfs_free_space_ctl *ctl, { int ret = 0; - BUG_ON(!info->bitmap && !info->bytes); + ASSERT(info->bytes || info->bitmap); ret = tree_insert_offset(&ctl->free_space_offset, info->offset, &info->offset_index, (info->bitmap != NULL)); if (ret) @@ -1358,7 +1358,7 @@ static void recalculate_thresholds(struct btrfs_free_space_ctl *ctl) max_bitmaps = max(max_bitmaps, 1); - BUG_ON(ctl->total_bitmaps > max_bitmaps); + ASSERT(ctl->total_bitmaps <= max_bitmaps); /* * The goal is to keep the total amount of memory used per 1gb of space @@ -1402,7 +1402,7 @@ static inline void __bitmap_clear_bits(struct btrfs_free_space_ctl *ctl, start = offset_to_bit(info->offset, ctl->unit, offset); count = bytes_to_bits(bytes, ctl->unit); - BUG_ON(start + count > BITS_PER_BITMAP); + ASSERT(start + count <= BITS_PER_BITMAP); bitmap_clear(info->bitmap, start, count); @@ -1425,7 +1425,7 @@ static void bitmap_set_bits(struct btrfs_free_space_ctl *ctl, start = offset_to_bit(info->offset, ctl->unit, offset); count = bytes_to_bits(bytes, ctl->unit); - BUG_ON(start + count > BITS_PER_BITMAP); + ASSERT(start + count <= BITS_PER_BITMAP); bitmap_set(info->bitmap, start, count); @@ -1741,7 +1741,7 @@ no_cluster_bitmap: bitmap_info = tree_search_offset(ctl, offset_to_bitmap(ctl, offset), 1, 0); if (!bitmap_info) { - BUG_ON(added); + ASSERT(added == 0); goto new_bitmap; } @@ -1881,7 +1881,7 @@ out: if (ret) { printk(KERN_CRIT "btrfs: unable to add free space :%d\n", ret); - BUG_ON(ret == -EEXIST); + ASSERT(ret != -EEXIST); } return ret; @@ -2369,7 +2369,7 @@ again: rb_erase(&entry->offset_index, &ctl->free_space_offset); ret = tree_insert_offset(&cluster->root, entry->offset, &entry->offset_index, 1); - BUG_ON(ret); /* -EEXIST; Logic error */ + ASSERT(!ret); /* -EEXIST; Logic error */ trace_btrfs_setup_cluster(block_group, cluster, total_found * ctl->unit, 1); @@ -2462,7 +2462,7 @@ setup_cluster_no_bitmap(struct btrfs_block_group_cache *block_group, ret = tree_insert_offset(&cluster->root, entry->offset, &entry->offset_index, 0); total_size += entry->bytes; - BUG_ON(ret); /* -EEXIST; Logic error */ + ASSERT(!ret); /* -EEXIST; Logic error */ } while (node && entry != last); cluster->max_size = max_extent; @@ -2853,7 +2853,7 @@ u64 btrfs_find_ino_for_alloc(struct btrfs_root *fs_root) ret = search_bitmap(ctl, entry, &offset, &count); /* Logic error; Should be empty if it can't find anything */ - BUG_ON(ret); + ASSERT(!ret); ino = offset; bitmap_clear_bits(ctl, entry, offset, 1); -- cgit v1.2.3-59-g8ed1b