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btrfs: use btrfs_read_node_slot in replace_path

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We're open-coding btrfs_read_node_slot() here, replace with the helper.

Reviewed-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Josef Bacik 2020-11-05 10:45:13 -05:00 committed by David Sterba
parent c975253682
commit 6b3426be27
1 changed files with 1 additions and 9 deletions
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10
fs/btrfs/relocation.c
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@ -1218,8 +1218,6 @@ int replace_path(struct btrfs_trans_handle *trans, struct reloc_control *rc,
parent = eb;
while (1) {
struct btrfs_key first_key;
level = btrfs_header_level(parent);
BUG_ON(level < lowest_level);
@ -1235,7 +1233,6 @@ int replace_path(struct btrfs_trans_handle *trans, struct reloc_control *rc,
old_bytenr = btrfs_node_blockptr(parent, slot);
blocksize = fs_info->nodesize;
old_ptr_gen = btrfs_node_ptr_generation(parent, slot);
btrfs_node_key_to_cpu(parent, &first_key, slot);
if (level <= max_level) {
eb = path->nodes[level];
@ -1260,15 +1257,10 @@ int replace_path(struct btrfs_trans_handle *trans, struct reloc_control *rc,
break;
}
eb = read_tree_block(fs_info, old_bytenr, old_ptr_gen,
level - 1, &first_key);
eb = btrfs_read_node_slot(parent, slot);
if (IS_ERR(eb)) {
ret = PTR_ERR(eb);
break;
} else if (!extent_buffer_uptodate(eb)) {
ret = -EIO;
free_extent_buffer(eb);
break;
}
btrfs_tree_lock(eb);
if (cow) {