1 files changed, 21 insertions, 11 deletions

diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
index d3e6cd063688..f093ea244849 100644
--- a/fs/xfs/xfs_super.c
+++ b/fs/xfs/xfs_super.c
@@ -38,6 +38,7 @@
 #include "xfs_refcount_item.h"
 #include "xfs_bmap_item.h"
 #include "xfs_reflink.h"
+#include "xfs_defer.h"
 
 #include <linux/namei.h>
 #include <linux/dax.h>
@@ -607,7 +608,7 @@ xfs_set_inode_alloc(
 	}
 
 	/* Get the last possible inode in the filesystem */
-	agino =	XFS_OFFBNO_TO_AGINO(mp, sbp->sb_agblocks - 1, 0);
+	agino =	XFS_AGB_TO_AGINO(mp, sbp->sb_agblocks - 1);
 	ino = XFS_AGINO_TO_INO(mp, agcount - 1, agino);
 
 	/*
@@ -1149,7 +1150,7 @@ xfs_fs_statfs(
 	statp->f_bfree = fdblocks - mp->m_alloc_set_aside;
 	statp->f_bavail = statp->f_bfree;
 
-	fakeinos = statp->f_bfree << sbp->sb_inopblog;
+	fakeinos = XFS_FSB_TO_INO(mp, statp->f_bfree);
 	statp->f_files = min(icount + fakeinos, (uint64_t)XFS_MAXINUMBER);
 	if (mp->m_maxicount)
 		statp->f_files = min_t(typeof(statp->f_files),
@@ -1593,6 +1594,13 @@ xfs_mount_alloc(
 	INIT_DELAYED_WORK(&mp->m_eofblocks_work, xfs_eofblocks_worker);
 	INIT_DELAYED_WORK(&mp->m_cowblocks_work, xfs_cowblocks_worker);
 	mp->m_kobj.kobject.kset = xfs_kset;
+	/*
+	 * We don't create the finobt per-ag space reservation until after log
+	 * recovery, so we must set this to true so that an ifree transaction
+	 * started during log recovery will not depend on space reservations
+	 * for finobt expansion.
+	 */
+	mp->m_finobt_nores = true;
 	return mp;
 }
 
@@ -1728,11 +1736,18 @@ xfs_fs_fill_super(
 		}
 	}
 
-	if (xfs_sb_version_hasreflink(&mp->m_sb) && mp->m_sb.sb_rblocks) {
-		xfs_alert(mp,
+	if (xfs_sb_version_hasreflink(&mp->m_sb)) {
+		if (mp->m_sb.sb_rblocks) {
+			xfs_alert(mp,
 	"reflink not compatible with realtime device!");
-		error = -EINVAL;
-		goto out_filestream_unmount;
+			error = -EINVAL;
+			goto out_filestream_unmount;
+		}
+
+		if (xfs_globals.always_cow) {
+			xfs_info(mp, "using DEBUG-only always_cow mode.");
+			mp->m_always_cow = true;
+		}
 	}
 
 	if (xfs_sb_version_hasrmapbt(&mp->m_sb) && mp->m_sb.sb_rblocks) {
@@ -2085,11 +2100,6 @@ init_xfs_fs(void)
 	printk(KERN_INFO XFS_VERSION_STRING " with "
 			 XFS_BUILD_OPTIONS " enabled\n");
 
-	xfs_extent_free_init_defer_op();
-	xfs_rmap_update_init_defer_op();
-	xfs_refcount_update_init_defer_op();
-	xfs_bmap_update_init_defer_op();
-
 	xfs_dir_startup();
 
 	error = xfs_init_zones();