xfs: add CRC checks to the AGI

[firefly-linux-kernel-4.4.55.git] / fs / xfs / xfs_fsops.c

diff --git a/fs/xfs/xfs_fsops.c b/fs/xfs/xfs_fsops.c
index a693a54799e5f39d933f5d39451ad012f55a0b98..87595b211da10743bbd07c7be8b4fd44d9f8212b 100644 (file)
--- a/fs/xfs/xfs_fsops.c
+++ b/fs/xfs/xfs_fsops.c
@@ -304,8 +304,11 @@ xfs_growfs_data_private(
                agi->agi_freecount = 0;
                agi->agi_newino = cpu_to_be32(NULLAGINO);
                agi->agi_dirino = cpu_to_be32(NULLAGINO);
+               if (xfs_sb_version_hascrc(&mp->m_sb))
+                       uuid_copy(&agi->agi_uuid, &mp->m_sb.sb_uuid);
                for (bucket = 0; bucket < XFS_AGI_UNLINKED_BUCKETS; bucket++)
                        agi->agi_unlinked[bucket] = cpu_to_be32(NULLAGINO);
+
                error = xfs_bwrite(bp);
                xfs_buf_relse(bp);
                if (error)