Merge tag 'xfs-6.13-merge-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux

Pull xfs updates from Carlos Maiolino:
 "The bulk of this pull request is a major rework that Darrick and
  Christoph have been doing on XFS's real-time volume, coupled with a
  few features to support this rework. It does also includes some bug
  fixes.

   - convert perag to use xarrays

   - create a new generic allocation group structure

   - add metadata inode dir trees

   - create in-core rt allocation groups

   - shard the RT section into allocation groups

   - persist quota options with the enw metadata dir tree

   - enable quota for RT volumes

   - enable metadata directory trees

   - some bugfixes"

* tag 'xfs-6.13-merge-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: (146 commits)
  xfs: port ondisk structure checks from xfs/122 to the kernel
  xfs: separate space btree structures in xfs_ondisk.h
  xfs: convert struct typedefs in xfs_ondisk.h
  xfs: enable metadata directory feature
  xfs: enable realtime quota again
  xfs: update sb field checks when metadir is turned on
  xfs: reserve quota for realtime files correctly
  xfs: create quota preallocation watermarks for realtime quota
  xfs: report realtime block quota limits on realtime directories
  xfs: persist quota flags with metadir
  xfs: advertise realtime quota support in the xqm stat files
  xfs: scrub quota file metapaths
  xfs: fix chown with rt quota
  xfs: use metadir for quota inodes
  xfs: refactor xfs_qm_destroy_quotainos
  xfs: use rtgroup busy extent list for FITRIM
  xfs: implement busy extent tracking for rtgroups
  xfs: port the perag discard code to handle generic groups
  xfs: move the min and max group block numbers to xfs_group
  xfs: adjust min_block usage in xfs_verify_agbno
  ...

1 files changed, 52 insertions, 0 deletions

diff --git a/fs/xfs/libxfs/xfs_metafile.c b/fs/xfs/libxfs/xfs_metafile.c
new file mode 100644
index 000000000000..adeb25d1a444
--- /dev/null
+++ b/fs/xfs/libxfs/xfs_metafile.c
@@ -0,0 +1,52 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (c) 2018-2024 Oracle.  All Rights Reserved.
+ * Author: Darrick J. Wong <djwong@kernel.org>
+ */
+#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_bit.h"
+#include "xfs_sb.h"
+#include "xfs_mount.h"
+#include "xfs_defer.h"
+#include "xfs_trans.h"
+#include "xfs_metafile.h"
+#include "xfs_trace.h"
+#include "xfs_inode.h"
+
+/* Set up an inode to be recognized as a metadata directory inode. */
+void
+xfs_metafile_set_iflag(
+	struct xfs_trans	*tp,
+	struct xfs_inode	*ip,
+	enum xfs_metafile_type	metafile_type)
+{
+	VFS_I(ip)->i_mode &= ~0777;
+	VFS_I(ip)->i_uid = GLOBAL_ROOT_UID;
+	VFS_I(ip)->i_gid = GLOBAL_ROOT_GID;
+	if (S_ISDIR(VFS_I(ip)->i_mode))
+		ip->i_diflags |= XFS_METADIR_DIFLAGS;
+	else
+		ip->i_diflags |= XFS_METAFILE_DIFLAGS;
+	ip->i_diflags2 &= ~XFS_DIFLAG2_DAX;
+	ip->i_diflags2 |= XFS_DIFLAG2_METADATA;
+	ip->i_metatype = metafile_type;
+	xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
+}
+
+/* Clear the metadata directory inode flag. */
+void
+xfs_metafile_clear_iflag(
+	struct xfs_trans	*tp,
+	struct xfs_inode	*ip)
+{
+	ASSERT(xfs_is_metadir_inode(ip));
+	ASSERT(VFS_I(ip)->i_nlink == 0);
+
+	ip->i_diflags2 &= ~XFS_DIFLAG2_METADATA;
+	xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
+}