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btrfs: tie extent buffer and it's token together

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Further simplifaction of the get/set helpers is possible when the token
is uniquely tied to an extent buffer. A condition and an assignment can
be avoided.

The initializations are moved closer to the first use when the extent
buffer is valid. There's one exception in __push_leaf_left where the
token is reused.

Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
David Sterba
2019-08-09 17:48:21 +02:00
parent 48bc39501a
commit c82f823c9b
5 changed files with 20 additions and 26 deletions
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2
fs/btrfs/inode.c
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@@ -3890,7 +3890,7 @@ static void fill_inode_item(struct btrfs_trans_handle *trans,
{
struct btrfs_map_token token;
btrfs_init_map_token(&token);
btrfs_init_map_token(&token, leaf);
btrfs_set_token_inode_uid(leaf, item, i_uid_read(inode), &token);
btrfs_set_token_inode_gid(leaf, item, i_gid_read(inode), &token);