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    Subject[PATCH] btrfs: zero out delayed node upon allocation
    This allows us to trim out half of btrfs_init_delayed_node()
    which is now reduntant.

    Signed-off-by: Alexandru Moise <00moses.alexander00@gmail.com>
    ---
    fs/btrfs/delayed-inode.c | 8 +-------
    1 file changed, 1 insertion(+), 7 deletions(-)

    diff --git a/fs/btrfs/delayed-inode.c b/fs/btrfs/delayed-inode.c
    index a2ae427..7aa84be 100644
    --- a/fs/btrfs/delayed-inode.c
    +++ b/fs/btrfs/delayed-inode.c
    @@ -53,17 +53,11 @@ static inline void btrfs_init_delayed_node(
    {
    delayed_node->root = root;
    delayed_node->inode_id = inode_id;
    - atomic_set(&delayed_node->refs, 0);
    - delayed_node->count = 0;
    - delayed_node->flags = 0;
    delayed_node->ins_root = RB_ROOT;
    delayed_node->del_root = RB_ROOT;
    mutex_init(&delayed_node->mutex);
    - delayed_node->index_cnt = 0;
    INIT_LIST_HEAD(&delayed_node->n_list);
    INIT_LIST_HEAD(&delayed_node->p_list);
    - delayed_node->bytes_reserved = 0;
    - memset(&delayed_node->inode_item, 0, sizeof(delayed_node->inode_item));
    }

    static inline int btrfs_is_continuous_delayed_item(
    @@ -132,7 +126,7 @@ again:
    if (node)
    return node;

    - node = kmem_cache_alloc(delayed_node_cache, GFP_NOFS);
    + node = kmem_cache_zalloc(delayed_node_cache, GFP_NOFS);
    if (!node)
    return ERR_PTR(-ENOMEM);
    btrfs_init_delayed_node(node, root, ino);
    --
    2.6.2


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