1 files changed, 65 insertions, 0 deletions
diff --git a/fs/xfs/scrub/rtsummary_repair.c b/fs/xfs/scrub/rtsummary_repair.c
new file mode 100644
index 000000000000..5f9ec44a0577
--- /dev/null
+++ b/fs/xfs/scrub/rtsummary_repair.c
@@ -0,0 +1,65 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (C) 2020 Oracle.  All Rights Reserved.
+ * Author: Darrick J. Wong <darrick.wong@oracle.com>
+ */
+#include "xfs.h"
+#include "xfs_fs.h"
+#include "xfs_shared.h"
+#include "xfs_format.h"
+#include "xfs_trans_resv.h"
+#include "xfs_mount.h"
+#include "xfs_btree.h"
+#include "xfs_log_format.h"
+#include "xfs_trans.h"
+#include "xfs_rtalloc.h"
+#include "xfs_inode.h"
+#include "xfs_bit.h"
+#include "xfs_bmap.h"
+#include "xfs_swapext.h"
+#include "scrub/scrub.h"
+#include "scrub/common.h"
+#include "scrub/trace.h"
+#include "scrub/repair.h"
+
+/* Repair the realtime summary. */
+int
+xrep_rtsummary(
+	struct xfs_scrub	*sc)
+{
+	struct xfs_swapext_req	req = { .flags = 0 };
+	int			error;
+
+	/* Make sure any problems with the fork are fixed. */
+	error = xrep_metadata_inode_forks(sc);
+	if (error)
+		return error;
+
+	/*
+	 * Trylock the temporary file.  We had better be the only ones holding
+	 * onto this inode...
+	 */
+	if (!xfs_ilock_nowait(sc->tempip, XFS_ILOCK_EXCL))
+		return -EAGAIN;
+	sc->temp_ilock_flags = XFS_ILOCK_EXCL;
+
+	/* Make sure we have space allocated for the entire summary file. */
+	xfs_trans_ijoin(sc->tp, sc->ip, 0);
+	xfs_trans_ijoin(sc->tp, sc->tempip, 0);
+	error = xrep_fallocate(sc, 0, XFS_B_TO_FSB(sc->mp, sc->mp->m_rsumsize));
+	if (error)
+		return error;
+
+	/* Copy the rtsummary file that we generated. */
+	error = xrep_set_file_contents(sc, &xfs_rtbuf_ops,
+			XFS_BLFT_RTSUMMARY_BUF, sc->mp->m_rsumsize);
+	if (error)
+		return error;
+
+	/* Now swap the extents. */
+	req.ip1 = sc->tempip;
+	req.ip2 = sc->ip;
+	req.whichfork = XFS_DATA_FORK;
+	req.blockcount = XFS_B_TO_FSB(sc->mp, sc->mp->m_rsumsize);
+	return xfs_swapext(&sc->tp, &req);
+}