From: Dave Chinner <dchinner@xxxxxxxxxx>
We can't really repair broken symlink buffer contents, but we can at
least warn about it and correct the CRC error so the symlink is
again readable.
Signed-off-by: Dave Chinner <dchinner@xxxxxxxxxx>
---
repair/dinode.c | 12 +++++++++++-
1 file changed, 11 insertions(+), 1 deletion(-)
diff --git a/repair/dinode.c b/repair/dinode.c
index b086bec..6360dba 100644
--- a/repair/dinode.c
+++ b/repair/dinode.c
@@ -1254,6 +1254,7 @@ process_symlink_remote(
while (pathlen > 0) {
int blk_cnt = 1;
int byte_cnt;
+ int dirty = 0;
fsbno = blkmap_get(blkmap, i);
if (fsbno == NULLDFSBNO) {
@@ -1284,6 +1285,12 @@ _("cannot read inode %" PRIu64 ", file block %d, disk block %" PRIu64 "\n"),
lino, i, fsbno);
return 1;
}
+ if (bp->b_error == EFSBADCRC) {
+ do_warn(
+_("Bad symlink buffer CRC, block %" PRIu64 ", inode %" PRIu64 ".\n"
+ "Correcting CRC, but symlink may be bad.\n"), fsbno, lino);
+ dirty = 1;
+ }
byte_cnt = XFS_SYMLINK_BUF_SPACE(mp, byte_cnt);
byte_cnt = MIN(pathlen, byte_cnt);
@@ -1307,7 +1314,10 @@ _("bad symlink header ino %" PRIu64 ", file block %d, disk block %" PRIu64 "\n")
offset += byte_cnt;
i++;
- libxfs_putbuf(bp);
+ if (dirty)
+ libxfs_writebuf(bp, 0);
+ else
+ libxfs_putbuf(bp);
}
return 0;
}
--
1.9.0
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