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-rw-r--r--fs/ntfs/super.c34
1 files changed, 27 insertions, 7 deletions
diff --git a/fs/ntfs/super.c b/fs/ntfs/super.c
index 489f7049146..368a8ec1066 100644
--- a/fs/ntfs/super.c
+++ b/fs/ntfs/super.c
@@ -472,9 +472,16 @@ static int ntfs_remount(struct super_block *sb, int *flags, char *opt)
ntfs_error(sb, "Volume is dirty and read-only%s", es);
return -EROFS;
}
+ if (vol->vol_flags & VOLUME_MODIFIED_BY_CHKDSK) {
+ ntfs_error(sb, "Volume has been modified by chkdsk "
+ "and is read-only%s", es);
+ return -EROFS;
+ }
if (vol->vol_flags & VOLUME_MUST_MOUNT_RO_MASK) {
- ntfs_error(sb, "Volume has unsupported flags set and "
- "is read-only%s", es);
+ ntfs_error(sb, "Volume has unsupported flags set "
+ "(0x%x) and is read-only%s",
+ (unsigned)le16_to_cpu(vol->vol_flags),
+ es);
return -EROFS;
}
if (ntfs_set_volume_flags(vol, VOLUME_IS_DIRTY)) {
@@ -1845,11 +1852,24 @@ get_ctx_vol_failed:
/* Make sure that no unsupported volume flags are set. */
if (vol->vol_flags & VOLUME_MUST_MOUNT_RO_MASK) {
static const char *es1a = "Volume is dirty";
- static const char *es1b = "Volume has unsupported flags set";
- static const char *es2 = ". Run chkdsk and mount in Windows.";
- const char *es1;
-
- es1 = vol->vol_flags & VOLUME_IS_DIRTY ? es1a : es1b;
+ static const char *es1b = "Volume has been modified by chkdsk";
+ static const char *es1c = "Volume has unsupported flags set";
+ static const char *es2a = ". Run chkdsk and mount in Windows.";
+ static const char *es2b = ". Mount in Windows.";
+ const char *es1, *es2;
+
+ es2 = es2a;
+ if (vol->vol_flags & VOLUME_IS_DIRTY)
+ es1 = es1a;
+ else if (vol->vol_flags & VOLUME_MODIFIED_BY_CHKDSK) {
+ es1 = es1b;
+ es2 = es2b;
+ } else {
+ es1 = es1c;
+ ntfs_warning(sb, "Unsupported volume flags 0x%x "
+ "encountered.",
+ (unsigned)le16_to_cpu(vol->vol_flags));
+ }
/* If a read-write mount, convert it to a read-only mount. */
if (!(sb->s_flags & MS_RDONLY)) {
if (!(vol->on_errors & (ON_ERRORS_REMOUNT_RO |