Re: [PATCH] fs: exFAT read-only driver GPL implementation by Paragon Software.

2019-10-21 Thread Maurizio Lombardi
Dne 21.10.2019 v 13:45 Pali Rohár napsal(a): > They are represented by one member > in boot sector structure). > >> Btw, only Windows CE supported this. > > Is this information based on some real tests? Or just from marketing or > Microsoft's information? (I would really like to know definite

Re: [PATCH] fs: exFAT read-only driver GPL implementation by Paragon Software.

2019-10-21 Thread Pali Rohár
On Monday 21 October 2019 13:37:13 Maurizio Lombardi wrote: > So, 2 FAT tables are probably not sufficient for recovery, 2 bitmaps are > needed too. Yes, I know. But code which I referred check both number of fat tables and number of allocation bitmaps (as they are represented by one member in bo

Re: [PATCH] fs: exFAT read-only driver GPL implementation by Paragon Software.

2019-10-21 Thread Maurizio Lombardi
Dne 21.10.2019 v 13:11 Pali Rohár napsal(a): > Are you going to add support also for TexFAT? Or at least for more two > FAT tables (like is used in FAT32)? > Just a small note here, differences between FAT and exFAT: 1) Contiguous files get a special treatment by exFAT: they do not use the FA

Re: [PATCH] fs: exFAT read-only driver GPL implementation by Paragon Software.

2019-10-21 Thread Richard Weinberger
On Mon, Oct 21, 2019 at 1:13 PM Pali Rohár wrote: > On Monday 21 October 2019 13:08:07 Maurizio Lombardi wrote: > > Dne 21.10.2019 v 12:54 Pali Rohár napsal(a): > Maurizio, thank you for reference! I have not caught this Samsung > activity yet! So we now we have +1 for count of exFAT drivers. Thi

Re: [PATCH] fs: exFAT read-only driver GPL implementation by Paragon Software.

2019-10-21 Thread Pali Rohár
On Monday 21 October 2019 13:08:07 Maurizio Lombardi wrote: > Dne 21.10.2019 v 12:54 Pali Rohár napsal(a): > > Plus there is new version of > > this out-of-tree Samsung's exfat driver called sdfat which can be found > > in some Android phones. > > [...] > > > > > About that one implementation f

Re: [PATCH] fs: exFAT read-only driver GPL implementation by Paragon Software.

2019-10-21 Thread Pali Rohár
On Friday 18 October 2019 15:18:39 Konstantin Komarov wrote: > Recently exFAT filesystem specification has been made public by Microsoft > (https://docs.microsoft.com/en-us/windows/win32/fileio/exfat-specification). > Having decades of expertise in commercial file systems development, we at > Par

Re: [PATCH] fs: exFAT read-only driver GPL implementation by Paragon Software.

2019-10-21 Thread Maurizio Lombardi
Dne 21.10.2019 v 12:54 Pali Rohár napsal(a): > Plus there is new version of > this out-of-tree Samsung's exfat driver called sdfat which can be found > in some Android phones. [...] > > About that one implementation from Samsung, which was recently merged > into staging tree, more people wro

Re: [PATCH] fs: exFAT read-only driver GPL implementation by Paragon Software.

2019-10-21 Thread Pali Rohár
On Sunday 20 October 2019 20:08:20 Richard Weinberger wrote: > On Sat, Oct 19, 2019 at 10:33 AM Konstantin Komarov > wrote: > > > > Recently exFAT filesystem specification has been made public by Microsoft > > (https://docs.microsoft.com/en-us/windows/win32/fileio/exfat-specification). > > Having

Re: [PATCH] fs: exFAT read-only driver GPL implementation by Paragon Software.

2019-10-20 Thread Richard Weinberger
On Sat, Oct 19, 2019 at 10:33 AM Konstantin Komarov wrote: > > Recently exFAT filesystem specification has been made public by Microsoft > (https://docs.microsoft.com/en-us/windows/win32/fileio/exfat-specification). > Having decades of expertise in commercial file systems development, we at > Pa

Re: [PATCH] fs: exFAT read-only driver GPL implementation by Paragon Software.

2019-10-19 Thread Pali Rohár
Hello! I have not read deeply whole implementation, just spotted suspicious options. See below. On Friday 18 October 2019 15:18:39 Konstantin Komarov wrote: > diff --git a/fs/exfat/exfat_fs.h b/fs/exfat/exfat_fs.h > new file mode 100644 > index ..5f8713fe1b0c > --- /dev/null > +++ b/fs

[PATCH] fs: exFAT read-only driver GPL implementation by Paragon Software.

2019-10-18 Thread Konstantin Komarov
Recently exFAT filesystem specification has been made public by Microsoft (https://docs.microsoft.com/en-us/windows/win32/fileio/exfat-specification). Having decades of expertise in commercial file systems development, we at Paragon Software GmbH are very excited by Microsoft's decision and now w