Re: [PATCH] udf: Do not mark possibly inconsistent filesystems as closed

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On Wed 28-02-18 22:58:38, Pali Rohár wrote:
> On Wednesday 28 February 2018 12:22:55 Jan Kara wrote:
> > 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
> 
> Need to edit commit message as there is no warning in patch...

Good point. Fixed and pushed to my tree. Can I add your Reviewed-by tag?

								Honza

> 
> > 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
> 
> -- 
> Pali Rohár
> pali.rohar@xxxxxxxxx


-- 
Jan Kara <jack@xxxxxxxx>
SUSE Labs, CR



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