diff options
Diffstat (limited to 'fs/xfs/libxfs/xfs_defer.h')
| -rw-r--r-- | fs/xfs/libxfs/xfs_defer.h | 41 |
1 files changed, 33 insertions, 8 deletions
diff --git a/fs/xfs/libxfs/xfs_defer.h b/fs/xfs/libxfs/xfs_defer.h index 05472f71fffe..7bb8a31ad65b 100644 --- a/fs/xfs/libxfs/xfs_defer.h +++ b/fs/xfs/libxfs/xfs_defer.h @@ -65,6 +65,30 @@ extern const struct xfs_defer_op_type xfs_extent_free_defer_type; extern const struct xfs_defer_op_type xfs_agfl_free_defer_type; /* + * Deferred operation item relogging limits. + */ +#define XFS_DEFER_OPS_NR_INODES 2 /* join up to two inodes */ +#define XFS_DEFER_OPS_NR_BUFS 2 /* join up to two buffers */ + +/* Resources that must be held across a transaction roll. */ +struct xfs_defer_resources { + /* held buffers */ + struct xfs_buf *dr_bp[XFS_DEFER_OPS_NR_BUFS]; + + /* inodes with no unlock flags */ + struct xfs_inode *dr_ip[XFS_DEFER_OPS_NR_INODES]; + + /* number of held buffers */ + unsigned short dr_bufs; + + /* bitmap of ordered buffers */ + unsigned short dr_ordered; + + /* number of held inodes */ + unsigned short dr_inos; +}; + +/* * This structure enables a dfops user to detach the chain of deferred * operations from a transaction so that they can be continued later. */ @@ -83,11 +107,7 @@ struct xfs_defer_capture { /* Log reservation saved from the transaction. */ unsigned int dfc_logres; - /* - * An inode reference that must be maintained to complete the deferred - * work. - */ - struct xfs_inode *dfc_capture_ip; + struct xfs_defer_resources dfc_held; }; /* @@ -95,9 +115,14 @@ struct xfs_defer_capture { * This doesn't normally happen except log recovery. */ int xfs_defer_ops_capture_and_commit(struct xfs_trans *tp, - struct xfs_inode *capture_ip, struct list_head *capture_list); + struct list_head *capture_list); void xfs_defer_ops_continue(struct xfs_defer_capture *d, struct xfs_trans *tp, - struct xfs_inode **captured_ipp); -void xfs_defer_ops_release(struct xfs_mount *mp, struct xfs_defer_capture *d); + struct xfs_defer_resources *dres); +void xfs_defer_ops_capture_free(struct xfs_mount *mp, + struct xfs_defer_capture *d); +void xfs_defer_resources_rele(struct xfs_defer_resources *dres); + +int __init xfs_defer_init_item_caches(void); +void xfs_defer_destroy_item_caches(void); #endif /* __XFS_DEFER_H__ */ |