From fda933da966d269089f1338766d971758738fb83 Mon Sep 17 00:00:00 2001
From: "Darrick J. Wong" <darrick.wong@oracle.com>
Date: Fri, 15 Nov 2019 17:16:23 -0500
Subject: [PATCH] xfs: revert 1baa2800e62d ("xfs: remove the unused
 XFS_ALLOC_USERDATA flag")

Source kernel commit: ce840429260a98bcfe4aaf487bb07fa346d86c41

Revert this commit, as it caused periodic regressions in xfs/173 w/
1k blocks.

[1] https://lore.kernel.org/lkml/20190919014602.GN15734@shao2-debian/

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Eric Sandeen <sandeen@sandeen.net
---
 libxfs/xfs_alloc.h | 7 ++++---
 libxfs/xfs_bmap.c  | 8 ++++++--
 2 files changed, 10 insertions(+), 5 deletions(-)

diff --git a/libxfs/xfs_alloc.h b/libxfs/xfs_alloc.h
index 58fa85cec..d6ed5d2c0 100644
--- a/libxfs/xfs_alloc.h
+++ b/libxfs/xfs_alloc.h
@@ -81,9 +81,10 @@ typedef struct xfs_alloc_arg {
 /*
  * Defines for datatype
  */
-#define XFS_ALLOC_INITIAL_USER_DATA	(1 << 0)/* special case start of file */
-#define XFS_ALLOC_USERDATA_ZERO		(1 << 1)/* zero extent on allocation */
-#define XFS_ALLOC_NOBUSY		(1 << 2)/* Busy extents not allowed */
+#define XFS_ALLOC_USERDATA		(1 << 0)/* allocation is for user data*/
+#define XFS_ALLOC_INITIAL_USER_DATA	(1 << 1)/* special case start of file */
+#define XFS_ALLOC_USERDATA_ZERO		(1 << 2)/* zero extent on allocation */
+#define XFS_ALLOC_NOBUSY		(1 << 3)/* Busy extents not allowed */
 
 static inline bool
 xfs_alloc_is_userdata(int datatype)
diff --git a/libxfs/xfs_bmap.c b/libxfs/xfs_bmap.c
index 60035e441..6b7c5e22d 100644
--- a/libxfs/xfs_bmap.c
+++ b/libxfs/xfs_bmap.c
@@ -4035,8 +4035,12 @@ xfs_bmapi_allocate(
 	 */
 	if (!(bma->flags & XFS_BMAPI_METADATA)) {
 		bma->datatype = XFS_ALLOC_NOBUSY;
-		if (whichfork == XFS_DATA_FORK && bma->offset == 0)
-			bma->datatype |= XFS_ALLOC_INITIAL_USER_DATA;
+		if (whichfork == XFS_DATA_FORK) {
+			if (bma->offset == 0)
+				bma->datatype |= XFS_ALLOC_INITIAL_USER_DATA;
+			else
+				bma->datatype |= XFS_ALLOC_USERDATA;
+		}
 		if (bma->flags & XFS_BMAPI_ZERO)
 			bma->datatype |= XFS_ALLOC_USERDATA_ZERO;
 	}
-- 
2.47.2