1 files changed, 128 insertions, 0 deletions
diff --git a/fs/xfs/libxfs/xfs_trans_inode.c b/fs/xfs/libxfs/xfs_trans_inode.c
new file mode 100644
index 000000000..6b2296ff2
--- /dev/null
+++ b/fs/xfs/libxfs/xfs_trans_inode.c
@@ -0,0 +1,128 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2000,2005 Silicon Graphics, Inc.
+ * All Rights Reserved.
+ */
+#include "xfs.h"
+#include "xfs_fs.h"
+#include "xfs_shared.h"
+#include "xfs_format.h"
+#include "xfs_log_format.h"
+#include "xfs_trans_resv.h"
+#include "xfs_mount.h"
+#include "xfs_inode.h"
+#include "xfs_trans.h"
+#include "xfs_trans_priv.h"
+#include "xfs_inode_item.h"
+
+#include <linux/iversion.h>
+
+/*
+ * Add a locked inode to the transaction.
+ *
+ * The inode must be locked, and it cannot be associated with any transaction.
+ * If lock_flags is non-zero the inode will be unlocked on transaction commit.
+ */
+void
+xfs_trans_ijoin(
+	struct xfs_trans	*tp,
+	struct xfs_inode	*ip,
+	uint			lock_flags)
+{
+	struct xfs_inode_log_item *iip;
+
+	ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
+	if (ip->i_itemp == NULL)
+		xfs_inode_item_init(ip, ip->i_mount);
+	iip = ip->i_itemp;
+
+	ASSERT(iip->ili_lock_flags == 0);
+	iip->ili_lock_flags = lock_flags;
+	ASSERT(!xfs_iflags_test(ip, XFS_ISTALE));
+
+	/* Reset the per-tx dirty context and add the item to the tx. */
+	iip->ili_dirty_flags = 0;
+	xfs_trans_add_item(tp, &iip->ili_item);
+}
+
+/*
+ * Transactional inode timestamp update. Requires the inode to be locked and
+ * joined to the transaction supplied. Relies on the transaction subsystem to
+ * track dirty state and update/writeback the inode accordingly.
+ */
+void
+xfs_trans_ichgtime(
+	struct xfs_trans	*tp,
+	struct xfs_inode	*ip,
+	int			flags)
+{
+	struct inode		*inode = VFS_I(ip);
+	struct timespec64	tv;
+
+	ASSERT(tp);
+	ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
+
+	tv = current_time(inode);
+
+	if (flags & XFS_ICHGTIME_MOD)
+		inode->i_mtime = tv;
+	if (flags & XFS_ICHGTIME_CHG)
+		inode_set_ctime_to_ts(inode, tv);
+	if (flags & XFS_ICHGTIME_CREATE)
+		ip->i_crtime = tv;
+}
+
+/*
+ * This is called to mark the fields indicated in fieldmask as needing to be
+ * logged when the transaction is committed.  The inode must already be
+ * associated with the given transaction. All we do here is record where the
+ * inode was dirtied and mark the transaction and inode log item dirty;
+ * everything else is done in the ->precommit log item operation after the
+ * changes in the transaction have been completed.
+ */
+void
+xfs_trans_log_inode(
+	struct xfs_trans	*tp,
+	struct xfs_inode	*ip,
+	uint			flags)
+{
+	struct xfs_inode_log_item *iip = ip->i_itemp;
+	struct inode		*inode = VFS_I(ip);
+
+	ASSERT(iip);
+	ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
+	ASSERT(!xfs_iflags_test(ip, XFS_ISTALE));
+
+	tp->t_flags |= XFS_TRANS_DIRTY;
+
+	/*
+	 * First time we log the inode in a transaction, bump the inode change
+	 * counter if it is configured for this to occur. While we have the
+	 * inode locked exclusively for metadata modification, we can usually
+	 * avoid setting XFS_ILOG_CORE if no one has queried the value since
+	 * the last time it was incremented. If we have XFS_ILOG_CORE already
+	 * set however, then go ahead and bump the i_version counter
+	 * unconditionally.
+	 */
+	if (!test_and_set_bit(XFS_LI_DIRTY, &iip->ili_item.li_flags)) {
+		if (IS_I_VERSION(inode) &&
+		    inode_maybe_inc_iversion(inode, flags & XFS_ILOG_CORE))
+			flags |= XFS_ILOG_IVERSION;
+	}
+
+	iip->ili_dirty_flags |= flags;
+}
+
+int
+xfs_trans_roll_inode(
+	struct xfs_trans	**tpp,
+	struct xfs_inode	*ip)
+{
+	int			error;
+
+	xfs_trans_log_inode(*tpp, ip, XFS_ILOG_CORE);
+	error = xfs_trans_roll(tpp);
+	if (!error)
+		xfs_trans_ijoin(*tpp, ip, 0);
+	return error;
+}