[PATCH 2/6] Btrfs: cleanup for unused ref cache stuff
From: Liu Bo <hidden>
Date: 2012-08-31 05:38:40
Subsystem:
btrfs file system, filesystems (vfs and infrastructure), the rest · Maintainers:
Chris Mason, David Sterba, Alexander Viro, Christian Brauner, Linus Torvalds
From: liubo <redacted> As ref cache has been removed from btrfs, there is no user on its lock and its check. Signed-off-by: Liu Bo <redacted> Signed-off-by: Liu Bo <redacted> --- fs/btrfs/ctree.h | 3 --- fs/btrfs/disk-io.c | 5 ----- 2 files changed, 0 insertions(+), 8 deletions(-)
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 0d195b5..4ae593c 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h@@ -1366,9 +1366,6 @@ 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
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 22e98e0..bcd1703 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c@@ -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);
@@ -3211,10 +3210,6 @@ 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);
--
1.7.7.6