Check and handle MMP checksum problems by resetting the block.
Signed-off-by: Darrick J. Wong <djwong@xxxxxxxxxx>
---
e2fsck/problem.c | 5 +++++
e2fsck/problem.h | 3 +++
e2fsck/unix.c | 5 +++++
3 files changed, 13 insertions(+), 0 deletions(-)
diff --git a/e2fsck/problem.c b/e2fsck/problem.c
index 8c55721..91617bc 100644
--- a/e2fsck/problem.c
+++ b/e2fsck/problem.c
@@ -432,6 +432,11 @@ static struct e2fsck_problem problem_table[] = {
"bits cannot be set simultaneously."),
PROMPT_FIX, PR_PREEN_OK | PR_NO_OK},
+ /* Superblock has invalid MMP checksum. */
+ { PR_0_MMP_CSUM_INVALID,
+ N_("@S MMP block checksum does not match MMP block. "),
+ PROMPT_FIX, PR_PREEN_OK | PR_NO_OK},
+
/* Pass 1 errors */
/* Pass 1: Checking inodes, blocks, and sizes */
diff --git a/e2fsck/problem.h b/e2fsck/problem.h
index e47984c..f6f1eee 100644
--- a/e2fsck/problem.h
+++ b/e2fsck/problem.h
@@ -248,6 +248,9 @@ struct problem_context {
*/
#define PR_0_META_AND_GDT_CSUM_SET 0x000044
+/* Superblock has invalid MMP checksum. */
+#define PR_0_MMP_CSUM_INVALID 0x000045
+
/*
* Pass 1 errors
*/
diff --git a/e2fsck/unix.c b/e2fsck/unix.c
index 678ce9b..d3fb8f8 100644
--- a/e2fsck/unix.c
+++ b/e2fsck/unix.c
@@ -1098,6 +1098,11 @@ check_error:
ext2fs_mmp_clear(fs);
retval = 0;
}
+ } else if (retval == EXT2_ET_MMP_CSUM_INVALID) {
+ if (fix_problem(ctx, PR_0_MMP_CSUM_INVALID, &pctx)) {
+ ext2fs_mmp_clear(fs);
+ retval = 0;
+ }
}
return retval;
}
--
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