From: Josef Bacik Date: Mon, 25 Apr 2011 23:43:52 +0000 (-0400) Subject: Btrfs: free bitmaps properly when evicting the cache X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=a4f0162fd4490daf2c823c185fff79080d266a7c;p=GitHub%2FLineageOS%2Fandroid_kernel_samsung_universal7580.git Btrfs: free bitmaps properly when evicting the cache If our space cache is wrong, we do the right thing and free up everything that we loaded, however we don't reset the total_bitmaps counter or the thresholds or anything. So in btrfs_remove_free_space_cache make sure to call free_bitmap() if it's a bitmap, this will keep us from panicing when we check to make sure we don't have too many bitmaps. Thanks, Signed-off-by: Josef Bacik Signed-off-by: Chris Mason --- diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c index 13c29b12a21..63731a1fb0a 100644 --- a/fs/btrfs/free-space-cache.c +++ b/fs/btrfs/free-space-cache.c @@ -1768,10 +1768,13 @@ void btrfs_remove_free_space_cache(struct btrfs_block_group_cache *block_group) while ((node = rb_last(&block_group->free_space_offset)) != NULL) { info = rb_entry(node, struct btrfs_free_space, offset_index); - unlink_free_space(block_group, info); - if (info->bitmap) - kfree(info->bitmap); - kmem_cache_free(btrfs_free_space_cachep, info); + if (!info->bitmap) { + unlink_free_space(block_group, info); + kmem_cache_free(btrfs_free_space_cachep, info); + } else { + free_bitmap(block_group, info); + } + if (need_resched()) { spin_unlock(&block_group->tree_lock); cond_resched();