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| author | Anton Altaparmakov <aia21@cantab.net> | 2006-03-23 15:34:13 +0000 |
|---|---|---|
| committer | Anton Altaparmakov <aia21@cantab.net> | 2006-03-23 15:34:13 +0000 |
| commit | 949763b2b8822c6dc6da0d0e1d4af092152546c2 (patch) | |
| tree | 241f024e5eb4e8aeb3aa89e0e3972211e3e1c07b | |
| parent | 78264bd9c239237fe356c32d08abf8e52a2d8737 (diff) | |
| download | op-kernel-dev-949763b2b8822c6dc6da0d0e1d4af092152546c2.zip op-kernel-dev-949763b2b8822c6dc6da0d0e1d4af092152546c2.tar.gz | |
NTFS: Fix comparison of $MFT and $MFTMirr to not bail out when there are
unused, invalid mft records which are the same in both $MFT and
$MFTMirr.
Signed-off-by: Anton Altaparmakov <aia21@cantab.net>
| -rw-r--r-- | fs/ntfs/ChangeLog | 3 | ||||
| -rw-r--r-- | fs/ntfs/super.c | 38 |
2 files changed, 28 insertions, 13 deletions
diff --git a/fs/ntfs/ChangeLog b/fs/ntfs/ChangeLog index 8df1070..548d905 100644 --- a/fs/ntfs/ChangeLog +++ b/fs/ntfs/ChangeLog @@ -28,6 +28,9 @@ ToDo/Notes: continued the attribute lookup loop instead of aborting it. - Use buffer_migrate_page() for the ->migratepage function of all ntfs address space operations. + - Fix comparison of $MFT and $MFTMirr to not bail out when there are + unused, invalid mft records which are the same in both $MFT and + $MFTMirr. 2.1.26 - Minor bug fixes and updates. diff --git a/fs/ntfs/super.c b/fs/ntfs/super.c index 71c58ec..fd4aecc 100644 --- a/fs/ntfs/super.c +++ b/fs/ntfs/super.c @@ -1099,26 +1099,38 @@ static BOOL check_mft_mirror(ntfs_volume *vol) kmirr = page_address(mirr_page); ++index; } - /* Make sure the record is ok. */ - if (ntfs_is_baad_recordp((le32*)kmft)) { - ntfs_error(sb, "Incomplete multi sector transfer " - "detected in mft record %i.", i); + /* Do not check the record if it is not in use. */ + if (((MFT_RECORD*)kmft)->flags & MFT_RECORD_IN_USE) { + /* Make sure the record is ok. */ + if (ntfs_is_baad_recordp((le32*)kmft)) { + ntfs_error(sb, "Incomplete multi sector " + "transfer detected in mft " + "record %i.", i); mm_unmap_out: - ntfs_unmap_page(mirr_page); + ntfs_unmap_page(mirr_page); mft_unmap_out: - ntfs_unmap_page(mft_page); - return FALSE; + ntfs_unmap_page(mft_page); + return FALSE; + } } - if (ntfs_is_baad_recordp((le32*)kmirr)) { - ntfs_error(sb, "Incomplete multi sector transfer " - "detected in mft mirror record %i.", i); - goto mm_unmap_out; + /* Do not check the mirror record if it is not in use. */ + if (((MFT_RECORD*)kmirr)->flags & MFT_RECORD_IN_USE) { + if (ntfs_is_baad_recordp((le32*)kmirr)) { + ntfs_error(sb, "Incomplete multi sector " + "transfer detected in mft " + "mirror record %i.", i); + goto mm_unmap_out; + } } /* Get the amount of data in the current record. */ bytes = le32_to_cpu(((MFT_RECORD*)kmft)->bytes_in_use); - if (!bytes || bytes > vol->mft_record_size) { + if (bytes < sizeof(MFT_RECORD_OLD) || + bytes > vol->mft_record_size || + ntfs_is_baad_recordp((le32*)kmft)) { bytes = le32_to_cpu(((MFT_RECORD*)kmirr)->bytes_in_use); - if (!bytes || bytes > vol->mft_record_size) + if (bytes < sizeof(MFT_RECORD_OLD) || + bytes > vol->mft_record_size || + ntfs_is_baad_recordp((le32*)kmirr)) bytes = vol->mft_record_size; } /* Compare the two records. */ |
