xfs: support embedded dfops in transaction

[thirdparty/xfsprogs-dev.git] / libxfs / xfs_defer.h

diff --git a/libxfs/xfs_defer.h b/libxfs/xfs_defer.h
index b9b5a92ffa6cf4c8f2109dffd7cf317c9a094ebd..35507ca9a148456d57fe2f814198de351a56ff38 100644 (file)
--- a/libxfs/xfs_defer.h
+++ b/libxfs/xfs_defer.h
@@ -1,26 +1,13 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2016 Oracle.  All Rights Reserved.
- *
  * Author: Darrick J. Wong <darrick.wong@oracle.com>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it would be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write the Free Software Foundation,
- * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301, USA.
  */
 #ifndef __XFS_DEFER_H__
 #define        __XFS_DEFER_H__
 
 struct xfs_defer_op_type;
+struct xfs_defer_ops;
 
 /*
  * Save a log intent item and a list of extents, so that we can replay
@@ -30,8 +17,8 @@ struct xfs_defer_op_type;
 struct xfs_defer_pending {
        const struct xfs_defer_op_type  *dfp_type;      /* function pointers */
        struct list_head                dfp_list;       /* pending items */
-       bool                            dfp_committed;  /* committed trans? */
        void                            *dfp_intent;    /* log intent item */
+       void                            *dfp_done;      /* log done item */
        struct list_head                dfp_work;       /* work items */
        unsigned int                    dfp_count;      /* # extent items */
 };
@@ -51,30 +38,23 @@ struct xfs_defer_pending {
  * find all the space it needs.
  */
 enum xfs_defer_ops_type {
+       XFS_DEFER_OPS_TYPE_BMAP,
+       XFS_DEFER_OPS_TYPE_REFCOUNT,
+       XFS_DEFER_OPS_TYPE_RMAP,
        XFS_DEFER_OPS_TYPE_FREE,
+       XFS_DEFER_OPS_TYPE_AGFL_FREE,
        XFS_DEFER_OPS_TYPE_MAX,
 };
 
-#define XFS_DEFER_OPS_NR_INODES        2       /* join up to two inodes */
-
-struct xfs_defer_ops {
-       bool                    dop_committed;  /* did any trans commit? */
-       bool                    dop_low;        /* alloc in low mode */
-       struct list_head        dop_intake;     /* unlogged pending work */
-       struct list_head        dop_pending;    /* logged pending work */
-
-       /* relog these inodes with each roll */
-       struct xfs_inode        *dop_inodes[XFS_DEFER_OPS_NR_INODES];
-};
-
 void xfs_defer_add(struct xfs_defer_ops *dop, enum xfs_defer_ops_type type,
                struct list_head *h);
-int xfs_defer_finish(struct xfs_trans **tp, struct xfs_defer_ops *dop,
-               struct xfs_inode *ip);
+int xfs_defer_finish(struct xfs_trans **tp, struct xfs_defer_ops *dop);
 void xfs_defer_cancel(struct xfs_defer_ops *dop);
-void xfs_defer_init(struct xfs_defer_ops *dop, xfs_fsblock_t *fbp);
+void xfs_defer_init(struct xfs_trans *tp, struct xfs_defer_ops *dop);
 bool xfs_defer_has_unfinished_work(struct xfs_defer_ops *dop);
-int xfs_defer_join(struct xfs_defer_ops *dop, struct xfs_inode *ip);
+int xfs_defer_ijoin(struct xfs_defer_ops *dop, struct xfs_inode *ip);
+int xfs_defer_bjoin(struct xfs_defer_ops *dop, struct xfs_buf *bp);
+void xfs_defer_move(struct xfs_defer_ops *dst, struct xfs_defer_ops *src);
 
 /* Description of a deferred type. */
 struct xfs_defer_op_type {