On Jul 30, 2014, at 11:18 AM, David Sterba <dsterba@xxxxxxx> wrote: > @@ -143,6 +148,16 @@ unmounted, and then only if the FIEMAP_EXTENT_ENCODED flag is > clear; user applications must not try reading or writing to the > filesystem via the block device under any other circumstances. > > +* FIEMAP_EXTENT_PHYS_LENGTH > +If set then fe_phys_length is valid and contains the physical size of the > +extent. > + > +* FIEMAP_EXTENT_DATA_COMPRESSED > + - This will also set FIEMAP_EXTENT_ENCODED > +The data in this extent has been compressed by the file system. When > +set, fe_phys_length contains the physical extent length in bytes. The > +value may be rounded depending on the filesystem implementation. When DATA_COMPRESSED is set, then PHYS_LENGTH should always be set, since it is using fe_phys_length. Cheers, Andreas
Attachment:
signature.asc
Description: Message signed with OpenPGP using GPGMail
