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Btrfs: cleanup for unused ref cache stuff
As ref cache has been removed from btrfs, there is no user on its lock and its check. Signed-off-by: Liu Bo <liubo2009@cn.fujitsu.com> Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
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2 changed files with 0 additions and 8 deletions
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@ -1376,9 +1376,6 @@ struct btrfs_fs_info {
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struct rb_root defrag_inodes;
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atomic_t defrag_running;
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spinlock_t ref_cache_lock;
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u64 total_ref_cache_size;
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/*
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* these three are in extended format (availability of single
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* chunks is denoted by BTRFS_AVAIL_ALLOC_BIT_SINGLE bit, other
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@ -2000,7 +2000,6 @@ int open_ctree(struct super_block *sb,
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INIT_LIST_HEAD(&fs_info->caching_block_groups);
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spin_lock_init(&fs_info->delalloc_lock);
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spin_lock_init(&fs_info->trans_lock);
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spin_lock_init(&fs_info->ref_cache_lock);
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spin_lock_init(&fs_info->fs_roots_radix_lock);
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spin_lock_init(&fs_info->delayed_iput_lock);
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spin_lock_init(&fs_info->defrag_inodes_lock);
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@ -3214,10 +3213,6 @@ int close_ctree(struct btrfs_root *root)
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printk(KERN_INFO "btrfs: at unmount delalloc count %llu\n",
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(unsigned long long)fs_info->delalloc_bytes);
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}
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if (fs_info->total_ref_cache_size) {
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printk(KERN_INFO "btrfs: at umount reference cache size %llu\n",
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(unsigned long long)fs_info->total_ref_cache_size);
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}
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free_extent_buffer(fs_info->extent_root->node);
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free_extent_buffer(fs_info->extent_root->commit_root);
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