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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>
This commit is contained in:
liubo 2012-09-07 20:01:26 -06:00 committed by Chris Mason
parent 8407aa4643
commit 0647d6bd16
2 changed files with 0 additions and 8 deletions
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3
fs/btrfs/ctree.h
View File

@ -1376,9 +1376,6 @@ struct btrfs_fs_info {
struct rb_root defrag_inodes;
atomic_t defrag_running;
spinlock_t ref_cache_lock;
u64 total_ref_cache_size;
/*
* these three are in extended format (availability of single
* chunks is denoted by BTRFS_AVAIL_ALLOC_BIT_SINGLE bit, other

5
fs/btrfs/disk-io.c
View File

@ -2000,7 +2000,6 @@ int open_ctree(struct super_block *sb,
INIT_LIST_HEAD(&fs_info->caching_block_groups);
spin_lock_init(&fs_info->delalloc_lock);
spin_lock_init(&fs_info->trans_lock);
spin_lock_init(&fs_info->ref_cache_lock);
spin_lock_init(&fs_info->fs_roots_radix_lock);
spin_lock_init(&fs_info->delayed_iput_lock);
spin_lock_init(&fs_info->defrag_inodes_lock);
@ -3214,10 +3213,6 @@ int close_ctree(struct btrfs_root *root)
printk(KERN_INFO "btrfs: at unmount delalloc count %llu\n",
(unsigned long long)fs_info->delalloc_bytes);
}
if (fs_info->total_ref_cache_size) {
printk(KERN_INFO "btrfs: at umount reference cache size %llu\n",
(unsigned long long)fs_info->total_ref_cache_size);
}
free_extent_buffer(fs_info->extent_root->node);
free_extent_buffer(fs_info->extent_root->commit_root);