When I create a XFS with "rmapbt=1,reflink=1", "xfs_db -c version" didn't show RMAPBT feature. But REFLINK can be found. # mkfs/mkfs.xfs -f -m rmapbt=1,reflink=1 /dev/sda3 # db/xfs_db -c version /dev/sda3 versionnum [0xb4a5+0x18a] = V5,NLINK,DIRV2,ALIGN,LOGV2,EXTFLG,MOREBITS,ATTR2,LAZYSBCOUNT,PROJID32BIT,CRC,FTYPE,FINOBT,REFLINK Signed-off-by: Zorro Lang <zlang@xxxxxxxxxx> --- db/sb.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/db/sb.c b/db/sb.c index 8e7722cd..01d94a66 100644 --- a/db/sb.c +++ b/db/sb.c @@ -694,6 +694,8 @@ version_string( strcat(s, ",SPARSE_INODES"); if (xfs_sb_version_hasmetauuid(sbp)) strcat(s, ",META_UUID"); + if (xfs_sb_version_hasrmapbt(sbp)) + strcat(s, ",RMAPBT"); if (xfs_sb_version_hasreflink(sbp)) strcat(s, ",REFLINK"); return s; -- 2.13.5 -- To unsubscribe from this list: send the line "unsubscribe linux-xfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html