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-rw-r--r--fs/befs/super.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/fs/befs/super.c b/fs/befs/super.c
index dc13df8de3e8..c36745d2b45f 100644
--- a/fs/befs/super.c
+++ b/fs/befs/super.c
@@ -103,6 +103,13 @@ befs_check_sb(struct super_block *sb)
return BEFS_ERR;
}
+
+ /* ag_shift also encodes the same information as blocks_per_ag in a
+ * different way, non-fatal consistency check
+ */
+ if ((1 << befs_sb->ag_shift) != befs_sb->blocks_per_ag)
+ befs_error(sb, "ag_shift disagrees with blocks_per_ag.");
+
if (befs_sb->log_start != befs_sb->log_end || befs_sb->flags == BEFS_DIRTY) {
befs_error(sb, "Filesystem not clean! There are blocks in the "
"journal. You must boot into BeOS and mount this volume "