From ddf30cf03fb53b9a0ad0f355a69dbedf416edde9 Mon Sep 17 00:00:00 2001 From: Qu Wenruo Date: Thu, 4 Apr 2019 14:45:34 +0800 Subject: [PATCH] btrfs: extent-tree: Use btrfs_ref to refactor add_pinned_bytes() Since add_pinned_bytes() only needs to know if the extent is metadata and if it's a chunk tree extent, btrfs_ref is a perfect match for it, as we don't need various owner/level trick to determine extent type. Signed-off-by: Qu Wenruo Reviewed-by: Nikolay Borisov Signed-off-by: David Sterba --- fs/btrfs/extent-tree.c | 26 ++++++++++---------------- 1 file changed, 10 insertions(+), 16 deletions(-) diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index e7444a181793..4fbcd0f7b204 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -756,14 +756,15 @@ static struct btrfs_space_info *__find_space_info(struct btrfs_fs_info *info, return NULL; } -static void add_pinned_bytes(struct btrfs_fs_info *fs_info, s64 num_bytes, - bool metadata, u64 root_objectid) +static void add_pinned_bytes(struct btrfs_fs_info *fs_info, + struct btrfs_ref *ref) { struct btrfs_space_info *space_info; + s64 num_bytes = -ref->len; u64 flags; - if (metadata) { - if (root_objectid == BTRFS_CHUNK_TREE_OBJECTID) + if (ref->type == BTRFS_REF_METADATA) { + if (ref->tree_ref.root == BTRFS_CHUNK_TREE_OBJECTID) flags = BTRFS_BLOCK_GROUP_SYSTEM; else flags = BTRFS_BLOCK_GROUP_METADATA; @@ -2069,11 +2070,8 @@ int btrfs_inc_extent_ref(struct btrfs_trans_handle *trans, btrfs_ref_tree_mod(fs_info, &generic_ref); - if (ret == 0 && old_ref_mod < 0 && new_ref_mod >= 0) { - bool metadata = owner < BTRFS_FIRST_FREE_OBJECTID; - - add_pinned_bytes(fs_info, -num_bytes, metadata, root_objectid); - } + if (ret == 0 && old_ref_mod < 0 && new_ref_mod >= 0) + add_pinned_bytes(fs_info, &generic_ref); return ret; } @@ -7221,8 +7219,7 @@ void btrfs_free_tree_block(struct btrfs_trans_handle *trans, } out: if (pin) - add_pinned_bytes(fs_info, buf->len, true, - root->root_key.objectid); + add_pinned_bytes(fs_info, &generic_ref); if (last_ref) { /* @@ -7273,11 +7270,8 @@ int btrfs_free_extent(struct btrfs_trans_handle *trans, if (root_objectid != BTRFS_TREE_LOG_OBJECTID) btrfs_ref_tree_mod(fs_info, &generic_ref); - if (ret == 0 && old_ref_mod >= 0 && new_ref_mod < 0) { - bool metadata = owner < BTRFS_FIRST_FREE_OBJECTID; - - add_pinned_bytes(fs_info, num_bytes, metadata, root_objectid); - } + if (ret == 0 && old_ref_mod >= 0 && new_ref_mod < 0) + add_pinned_bytes(fs_info, &generic_ref); return ret; }