diff options
Diffstat (limited to 'fs/btrfs/transaction.h')
| -rw-r--r-- | fs/btrfs/transaction.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/fs/btrfs/transaction.h b/fs/btrfs/transaction.h index 49f7196368f5..453cea7c7a72 100644 --- a/fs/btrfs/transaction.h +++ b/fs/btrfs/transaction.h @@ -115,6 +115,10 @@ struct btrfs_trans_handle { struct btrfs_block_rsv *orig_rsv; refcount_t use_count; unsigned int type; + /* + * Error code of transaction abort, set outside of locks and must use + * the READ_ONCE/WRITE_ONCE access + */ short aborted; bool adding_csums; bool allocating_chunk; @@ -126,6 +130,14 @@ struct btrfs_trans_handle { struct list_head new_bgs; }; +/* + * The abort status can be changed between calls and is not protected by locks. + * This accepts btrfs_transaction and btrfs_trans_handle as types. Once it's + * set to a non-zero value it does not change, so the macro should be in checks + * but is not necessary for further reads of the value. + */ +#define TRANS_ABORTED(trans) (unlikely(READ_ONCE((trans)->aborted))) + struct btrfs_pending_snapshot { struct dentry *dentry; struct inode *dir; |