1 files changed, 25 insertions, 0 deletions

diff --git a/fs/xfs/xfs_error.c b/fs/xfs/xfs_error.c
index 9995b807d627..a8b2ecb5f436 100644
--- a/fs/xfs/xfs_error.c
+++ b/fs/xfs/xfs_error.c
@@ -178,3 +178,28 @@ xfs_corruption_error(
         xfs_error_report(tag, level, mp, filename, linenum, ra);
         xfs_alert(mp, "Corruption detected. Unmount and run xfs_repair");
 }
+
+/*
+ * Warnings specifically for verifier errors.  Differentiate CRC vs. invalid
+ * values, and omit the stack trace unless the error level is tuned high.
+ */
+void
+xfs_verifier_error(
+        struct xfs_buf          *bp)
+{
+        struct xfs_mount *mp = bp->b_target->bt_mount;
+
+        xfs_alert(mp, "Metadata %s detected at %pF, block 0x%llx",
+                  bp->b_error == EFSBADCRC ? "CRC error" : "corruption",
+                  __return_address, bp->b_bn);
+
+        xfs_alert(mp, "Unmount and run xfs_repair");
+
+        if (xfs_error_level >= XFS_ERRLEVEL_LOW) {
+                xfs_alert(mp, "First 64 bytes of corrupted metadata buffer:");
+                xfs_hex_dump(xfs_buf_offset(bp, 0), 64);
+        }
+
+        if (xfs_error_level >= XFS_ERRLEVEL_HIGH)
+                xfs_stack_trace();
+}