From 0e07c039bac5f6ce7e3bc512ab9efb4aaa76da94 Mon Sep 17 00:00:00 2001
From: "Darrick J. Wong" <darrick.wong@oracle.com>
Date: Mon, 3 Oct 2016 09:11:47 -0700
Subject: xfs: add shared rmap map/unmap/convert log item types

Wire up some rmap log redo item type codes to map, unmap, or convert
shared data block extents.  The actual log item recovery comes in a
later patch.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>

diff --git a/fs/xfs/libxfs/xfs_log_format.h b/fs/xfs/libxfs/xfs_log_format.h
index 364ce6f..083cdd6 100644
--- a/fs/xfs/libxfs/xfs_log_format.h
+++ b/fs/xfs/libxfs/xfs_log_format.h
@@ -635,8 +635,11 @@ struct xfs_map_extent {
 
 /* rmap me_flags: upper bits are flags, lower byte is type code */
 #define XFS_RMAP_EXTENT_MAP		1
+#define XFS_RMAP_EXTENT_MAP_SHARED	2
 #define XFS_RMAP_EXTENT_UNMAP		3
+#define XFS_RMAP_EXTENT_UNMAP_SHARED	4
 #define XFS_RMAP_EXTENT_CONVERT		5
+#define XFS_RMAP_EXTENT_CONVERT_SHARED	6
 #define XFS_RMAP_EXTENT_ALLOC		7
 #define XFS_RMAP_EXTENT_FREE		8
 #define XFS_RMAP_EXTENT_TYPE_MASK	0xFF
diff --git a/fs/xfs/xfs_rmap_item.c b/fs/xfs/xfs_rmap_item.c
index 0432a45..19d817e 100644
--- a/fs/xfs/xfs_rmap_item.c
+++ b/fs/xfs/xfs_rmap_item.c
@@ -441,8 +441,11 @@ xfs_rui_recover(
 				   XFS_FSB_TO_DADDR(mp, rmap->me_startblock));
 		switch (rmap->me_flags & XFS_RMAP_EXTENT_TYPE_MASK) {
 		case XFS_RMAP_EXTENT_MAP:
+		case XFS_RMAP_EXTENT_MAP_SHARED:
 		case XFS_RMAP_EXTENT_UNMAP:
+		case XFS_RMAP_EXTENT_UNMAP_SHARED:
 		case XFS_RMAP_EXTENT_CONVERT:
+		case XFS_RMAP_EXTENT_CONVERT_SHARED:
 		case XFS_RMAP_EXTENT_ALLOC:
 		case XFS_RMAP_EXTENT_FREE:
 			op_ok = true;
diff --git a/fs/xfs/xfs_trans_rmap.c b/fs/xfs/xfs_trans_rmap.c
index 5a50ef8..9ead064 100644
--- a/fs/xfs/xfs_trans_rmap.c
+++ b/fs/xfs/xfs_trans_rmap.c
@@ -48,12 +48,21 @@ xfs_trans_set_rmap_flags(
 	case XFS_RMAP_MAP:
 		rmap->me_flags |= XFS_RMAP_EXTENT_MAP;
 		break;
+	case XFS_RMAP_MAP_SHARED:
+		rmap->me_flags |= XFS_RMAP_EXTENT_MAP_SHARED;
+		break;
 	case XFS_RMAP_UNMAP:
 		rmap->me_flags |= XFS_RMAP_EXTENT_UNMAP;
 		break;
+	case XFS_RMAP_UNMAP_SHARED:
+		rmap->me_flags |= XFS_RMAP_EXTENT_UNMAP_SHARED;
+		break;
 	case XFS_RMAP_CONVERT:
 		rmap->me_flags |= XFS_RMAP_EXTENT_CONVERT;
 		break;
+	case XFS_RMAP_CONVERT_SHARED:
+		rmap->me_flags |= XFS_RMAP_EXTENT_CONVERT_SHARED;
+		break;
 	case XFS_RMAP_ALLOC:
 		rmap->me_flags |= XFS_RMAP_EXTENT_ALLOC;
 		break;
-- 
cgit v0.10.2