1 files changed, 57 insertions, 4 deletions

diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c
index 25bbcc3f4ee0..5918f433dba7 100644
--- a/fs/xfs/xfs_mount.c
+++ b/fs/xfs/xfs_mount.c
@@ -35,6 +35,8 @@
 #include "xfs_trace.h"
 #include "xfs_ag.h"
 #include "xfs_rtbitmap.h"
+#include "xfs_metafile.h"
+#include "xfs_rtgroup.h"
 #include "scrub/stats.h"
 
 static DEFINE_MUTEX(xfs_uuid_table_mutex);
@@ -620,6 +622,22 @@ xfs_mount_setup_inode_geom(
 	xfs_ialloc_setup_geometry(mp);
 }
 
+/* Mount the metadata directory tree root. */
+STATIC int
+xfs_mount_setup_metadir(
+	struct xfs_mount	*mp)
+{
+	int			error;
+
+	/* Load the metadata directory root inode into memory. */
+	error = xfs_metafile_iget(mp, mp->m_sb.sb_metadirino, XFS_METAFILE_DIR,
+			&mp->m_metadirip);
+	if (error)
+		xfs_warn(mp, "Failed to load metadir root directory, error %d",
+				error);
+	return error;
+}
+
 /* Compute maximum possible height for per-AG btree types for this fs. */
 static inline void
 xfs_agbtree_compute_maxlevels(
@@ -817,10 +835,17 @@ xfs_mountfs(
 		goto out_free_dir;
 	}
 
+	error = xfs_initialize_rtgroups(mp, 0, sbp->sb_rgcount,
+			mp->m_sb.sb_rextents);
+	if (error) {
+		xfs_warn(mp, "Failed rtgroup init: %d", error);
+		goto out_free_perag;
+	}
+
 	if (XFS_IS_CORRUPT(mp, !sbp->sb_logblocks)) {
 		xfs_warn(mp, "no log defined");
 		error = -EFSCORRUPTED;
-		goto out_free_perag;
+		goto out_free_rtgroup;
 	}
 
 	error = xfs_inodegc_register_shrinker(mp);
@@ -828,6 +853,13 @@ xfs_mountfs(
 		goto out_fail_wait;
 
 	/*
+	 * If we're resuming quota status, pick up the preliminary qflags from
+	 * the ondisk superblock so that we know if we should recover dquots.
+	 */
+	if (xfs_is_resuming_quotaon(mp))
+		xfs_qm_resume_quotaon(mp);
+
+	/*
 	 * Log's mount-time initialization. The first part of recovery can place
 	 * some items on the AIL, to be handled when recovery is finished or
 	 * cancelled.
@@ -841,6 +873,14 @@ xfs_mountfs(
 	}
 
 	/*
+	 * If we're resuming quota status and recovered the log, re-sample the
+	 * qflags from the ondisk superblock now that we've recovered it, just
+	 * in case someone shut down enforcement just before a crash.
+	 */
+	if (xfs_clear_resuming_quotaon(mp) && xlog_recovery_needed(mp->m_log))
+		xfs_qm_resume_quotaon(mp);
+
+	/*
 	 * If logged xattrs are still enabled after log recovery finishes, then
 	 * they'll be available until unmount.  Otherwise, turn them off.
 	 */
@@ -866,6 +906,12 @@ xfs_mountfs(
 		mp->m_features |= XFS_FEAT_ATTR2;
 	}
 
+	if (xfs_has_metadir(mp)) {
+		error = xfs_mount_setup_metadir(mp);
+		if (error)
+			goto out_free_metadir;
+	}
+
 	/*
 	 * Get and sanity-check the root inode.
 	 * Save the pointer to it in the mount structure.
@@ -876,7 +922,7 @@ xfs_mountfs(
 		xfs_warn(mp,
 			"Failed to read root inode 0x%llx, error %d",
 			sbp->sb_rootino, -error);
-		goto out_log_dealloc;
+		goto out_free_metadir;
 	}
 
 	ASSERT(rip != NULL);
@@ -1018,6 +1064,9 @@ xfs_mountfs(
 	xfs_irele(rip);
 	/* Clean out dquots that might be in memory after quotacheck. */
 	xfs_qm_unmount(mp);
+ out_free_metadir:
+	if (mp->m_metadirip)
+		xfs_irele(mp->m_metadirip);
 
 	/*
 	 * Inactivate all inodes that might still be in memory after a log
@@ -1039,7 +1088,6 @@ xfs_mountfs(
 	 * quota inodes.
 	 */
 	xfs_unmount_flush_inodes(mp);
- out_log_dealloc:
 	xfs_log_mount_cancel(mp);
  out_inodegc_shrinker:
 	shrinker_free(mp->m_inodegc_shrinker);
@@ -1047,6 +1095,8 @@ xfs_mountfs(
 	if (mp->m_logdev_targp && mp->m_logdev_targp != mp->m_ddev_targp)
 		xfs_buftarg_drain(mp->m_logdev_targp);
 	xfs_buftarg_drain(mp->m_ddev_targp);
+ out_free_rtgroup:
+	xfs_free_rtgroups(mp, 0, mp->m_sb.sb_rgcount);
  out_free_perag:
 	xfs_free_perag_range(mp, 0, mp->m_sb.sb_agcount);
  out_free_dir:
@@ -1091,6 +1141,8 @@ xfs_unmountfs(
 	xfs_qm_unmount_quotas(mp);
 	xfs_rtunmount_inodes(mp);
 	xfs_irele(mp->m_rootip);
+	if (mp->m_metadirip)
+		xfs_irele(mp->m_metadirip);
 
 	xfs_unmount_flush_inodes(mp);
 
@@ -1129,6 +1181,7 @@ xfs_unmountfs(
 	xfs_errortag_clearall(mp);
 #endif
 	shrinker_free(mp->m_inodegc_shrinker);
+	xfs_free_rtgroups(mp, 0, mp->m_sb.sb_rgcount);
 	xfs_free_perag_range(mp, 0, mp->m_sb.sb_agcount);
 	xfs_errortag_del(mp);
 	xfs_error_sysfs_del(mp);
@@ -1436,7 +1489,7 @@ xfs_mod_delalloc(
 
 	if (XFS_IS_REALTIME_INODE(ip)) {
 		percpu_counter_add_batch(&mp->m_delalloc_rtextents,
-				xfs_rtb_to_rtx(mp, data_delta),
+				xfs_blen_to_rtbxlen(mp, data_delta),
 				XFS_DELALLOC_BATCH);
 		if (!ind_delta)
 			return;