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Btrfs: add a type field for the transaction handle

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This patch add a type field into the transaction handle structure,
in this way, we needn't implement various end-transaction functions
and can make the code more simple and readable.

Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
This commit is contained in:
Miao Xie
2012-09-20 01:51:59 -06:00
committed by Chris Mason
parent e8830e606f
commit a698d0755a
3 changed files with 21 additions and 42 deletions
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15
fs/btrfs/transaction.h
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@@ -47,6 +47,14 @@ struct btrfs_transaction {
int aborted;
};
enum btrfs_trans_type {
TRANS_START,
TRANS_JOIN,
TRANS_USERSPACE,
TRANS_JOIN_NOLOCK,
TRANS_JOIN_FREEZE,
};
struct btrfs_trans_handle {
u64 transid;
u64 bytes_reserved;
@@ -58,8 +66,9 @@ struct btrfs_trans_handle {
struct btrfs_transaction *transaction;
struct btrfs_block_rsv *block_rsv;
struct btrfs_block_rsv *orig_rsv;
int aborted;
int adding_csums;
short aborted;
short adding_csums;
enum btrfs_trans_type type;
/*
* this root is only needed to validate that the root passed to
* start_transaction is the same as the one passed to end_transaction.
@@ -94,8 +103,6 @@ static inline void btrfs_set_inode_last_trans(struct btrfs_trans_handle *trans,
int btrfs_end_transaction(struct btrfs_trans_handle *trans,
struct btrfs_root *root);
int btrfs_end_transaction_nolock(struct btrfs_trans_handle *trans,
struct btrfs_root *root);
struct btrfs_trans_handle *btrfs_start_transaction(struct btrfs_root *root,
int num_items);
struct btrfs_trans_handle *btrfs_start_transaction_noflush(