If logical volume integrity descriptor contains non-closed integrity type when mounting the volume, there are high chances that the volume is not consistent (device was detached before the filesystem was unmounted). Warn when mounting such volume and don't touch integrity type of the volume so that fsck can recognize it and check such filesystem. Signed-off-by: Jan Kara <jack@xxxxxxx> --- fs/udf/super.c | 8 ++++++-- fs/udf/udf_sb.h | 1 + 2 files changed, 7 insertions(+), 2 deletions(-) diff --git a/fs/udf/super.c b/fs/udf/super.c index 2d4929fa884d..bf5f6084dcb2 100644 --- a/fs/udf/super.c +++ b/fs/udf/super.c @@ -1988,7 +1988,10 @@ static void udf_open_lvid(struct super_block *sb) lvidiu->impIdent.identSuffix[1] = UDF_OS_ID_LINUX; ktime_get_real_ts(&ts); udf_time_to_disk_stamp(&lvid->recordingDateAndTime, ts); - lvid->integrityType = cpu_to_le32(LVID_INTEGRITY_TYPE_OPEN); + if (le32_to_cpu(lvid->integrityType) == LVID_INTEGRITY_TYPE_CLOSE) + lvid->integrityType = cpu_to_le32(LVID_INTEGRITY_TYPE_OPEN); + else + UDF_SET_FLAG(sb, UDF_FLAG_INCONSISTENT); lvid->descTag.descCRC = cpu_to_le16( crc_itu_t(0, (char *)lvid + sizeof(struct tag), @@ -2028,7 +2031,8 @@ static void udf_close_lvid(struct super_block *sb) lvidiu->minUDFReadRev = cpu_to_le16(sbi->s_udfrev); if (sbi->s_udfrev > le16_to_cpu(lvidiu->minUDFWriteRev)) lvidiu->minUDFWriteRev = cpu_to_le16(sbi->s_udfrev); - lvid->integrityType = cpu_to_le32(LVID_INTEGRITY_TYPE_CLOSE); + if (!UDF_QUERY_FLAG(sb, UDF_FLAG_INCONSISTENT)) + lvid->integrityType = cpu_to_le32(LVID_INTEGRITY_TYPE_CLOSE); lvid->descTag.descCRC = cpu_to_le16( crc_itu_t(0, (char *)lvid + sizeof(struct tag), diff --git a/fs/udf/udf_sb.h b/fs/udf/udf_sb.h index 9dcb475fc74e..9dd3e1b9619e 100644 --- a/fs/udf/udf_sb.h +++ b/fs/udf/udf_sb.h @@ -29,6 +29,7 @@ #define UDF_FLAG_SESSION_SET 15 #define UDF_FLAG_LASTBLOCK_SET 16 #define UDF_FLAG_BLOCKSIZE_SET 17 +#define UDF_FLAG_INCONSISTENT 18 #define UDF_PART_FLAG_UNALLOC_BITMAP 0x0001 #define UDF_PART_FLAG_UNALLOC_TABLE 0x0002 -- 2.13.6
