From dd28b6a5aad306c417477db700ed0848c923a31c Mon Sep 17 00:00:00 2001 From: Qu Wenruo Date: Thu, 4 Apr 2019 14:45:30 +0800 Subject: [PATCH] btrfs: extent-tree: Open-code process_func in __btrfs_mod_ref The process_func function pointer is local to __btrfs_mod_ref() and points to either btrfs_inc_extent_ref() or btrfs_free_extent(). Open code it to make later delayed ref refactor easier, so we can refactor btrfs_inc_extent_ref() and btrfs_free_extent() in different patches. Reviewed-by: Nikolay Borisov Reviewed-by: Johannes Thumshirn Signed-off-by: Qu Wenruo Reviewed-by: David Sterba Signed-off-by: David Sterba --- fs/btrfs/extent-tree.c | 30 ++++++++++++++++-------------- 1 file changed, 16 insertions(+), 14 deletions(-) diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index 21c9d4a..cd33b89 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -3157,10 +3157,6 @@ static int __btrfs_mod_ref(struct btrfs_trans_handle *trans, int i; int level; int ret = 0; - int (*process_func)(struct btrfs_trans_handle *, - struct btrfs_root *, - u64, u64, u64, u64, u64, u64); - if (btrfs_is_testing(fs_info)) return 0; @@ -3172,11 +3168,6 @@ static int __btrfs_mod_ref(struct btrfs_trans_handle *trans, if (!test_bit(BTRFS_ROOT_REF_COWS, &root->state) && level == 0) return 0; - if (inc) - process_func = btrfs_inc_extent_ref; - else - process_func = btrfs_free_extent; - if (full_backref) parent = buf->start; else @@ -3198,16 +3189,27 @@ static int __btrfs_mod_ref(struct btrfs_trans_handle *trans, num_bytes = btrfs_file_extent_disk_num_bytes(buf, fi); key.offset -= btrfs_file_extent_offset(buf, fi); - ret = process_func(trans, root, bytenr, num_bytes, - parent, ref_root, key.objectid, - key.offset); + if (inc) + ret = btrfs_inc_extent_ref(trans, root, bytenr, + num_bytes, parent, ref_root, + key.objectid, key.offset); + else + ret = btrfs_free_extent(trans, root, bytenr, + num_bytes, parent, ref_root, + key.objectid, key.offset); if (ret) goto fail; } else { bytenr = btrfs_node_blockptr(buf, i); num_bytes = fs_info->nodesize; - ret = process_func(trans, root, bytenr, num_bytes, - parent, ref_root, level - 1, 0); + if (inc) + ret = btrfs_inc_extent_ref(trans, root, bytenr, + num_bytes, parent, ref_root, + level - 1, 0); + else + ret = btrfs_free_extent(trans, root, bytenr, + num_bytes, parent, ref_root, + level - 1, 0); if (ret) goto fail; } -- 2.7.4