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Re: Does JFS work on OS/2 version 4.0 and earlier?

From Jonathan de Boyne Pollard <J.deBoynePollard-newsgroups@NTLWorld.COM>
Newsgroups comp.os.os2.beta, comp.os.os2.utilities, comp.os.os2.programmer.misc, comp.os.os2.misc
Subject Re: Does JFS work on OS/2 version 4.0 and earlier?
References (8 earlier) <IU.D20110401.T011141.P31426.Q0@J.de.Boyne.Pollard.localhost> <4D95CB7D.2060206@chollian.net> <IU.D20110401.T183722.P49800.Q0@J.de.Boyne.Pollard.localhost> <YEdw17zDmnZd-pn2-Rc2UVCMFU0i9@0605ds7-suoe.2.fullrate.dk> <IU.D20110402.T141716.P52711.Q0@J.de.Boyne.Pollard.localhost>
Message-ID <IU.D20110403.T212905.P55887.Q0@J.de.Boyne.Pollard.localhost> (permalink)
Organization virginmedia.com
Date 2011-04-03 22:29 +0100

Cross-posted to 4 groups.

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> (I suggest that those with JFS source code access check what SFFSI 
> structure is passed to an "L" function.)
>

Thanks to Dave Yeo, I've been able to check this out.  The "L" functions 
take the same sffsi structure, except that it has two 64-bit fields 
tacked on to the end: sfi_sizel and sfi_positionl.  Obviously, by their 
names, these replace the 32-bit sfi_size and sfi_position fields earlier 
in the structure.  Quite how the kernel tells which set of fields, the 
32-bit ones or the 64-bit ones, an IFS driver is maintaining is 
unclear.  I see no sign of JFS setting a flag to tell the kernel which 
fields it is maintaining, and it maintains the 64-bit fields, and *only* 
the 64-bit fields, even in the non-"L" entrypoints.  (The non-"L" 
entrypoints simply call the "L" ones.  Perhaps this is a JFS bug.  Have 
there been reports of the 2003 JFS.IFS not working on OS/2 prior to 
version 4.5?  The 4.0 and earlier kernels will be expecting the 32-bit 
fields to be maintained.  They probably won't even be allocating the 
extra space for the 64-bit ones.)

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Re: formatting to FAT32 Jonathan de Boyne Pollard <J.deBoynePollard-newsgroups@NTLWorld.COM> - 2011-03-31 23:30 +0100
  Re: formatting to FAT32 Ilya Zakharevich <nospam-abuse@ilyaz.org> - 2011-03-31 23:16 +0000
    Re: formatting to FAT32 Jonathan de Boyne Pollard <J.deBoynePollard-newsgroups@NTLWorld.COM> - 2011-04-01 02:11 +0100
      Re: formatting to FAT32 KO Myung-Hun <komh@chollian.net> - 2011-04-01 21:56 +0900
        Re: formatting to FAT32 Jonathan de Boyne Pollard <J.deBoynePollard-newsgroups@NTLWorld.COM> - 2011-04-01 19:37 +0100
          Re: formatting to FAT32 "Allan" <allan2@warpspeed.dyndns.dk> - 2011-04-02 10:21 +0200
            Re: formatting to FAT32 Jonathan de Boyne Pollard <J.deBoynePollard-newsgroups@NTLWorld.COM> - 2011-04-02 15:16 +0100
              Re: formatting to FAT32 Ilya Zakharevich <nospam-abuse@ilyaz.org> - 2011-04-02 21:49 +0000
                Re: formatting to FAT32 Jonathan de Boyne Pollard <J.deBoynePollard-newsgroups@NTLWorld.COM> - 2011-04-03 02:17 +0100
                Re: formatting to FAT32 Ilya Zakharevich <nospam-abuse@ilyaz.org> - 2011-04-03 09:17 +0000
                Re: formatting to FAT32 Jonathan de Boyne Pollard <J.deBoynePollard-newsgroups@NTLWorld.COM> - 2011-04-03 19:51 +0100
              Re: formatting to FAT32 "Allan" <allan2@warpspeed.dyndns.dk> - 2011-04-03 00:12 +0200
                Re: Is JFS really open source? Jonathan de Boyne Pollard <J.deBoynePollard-newsgroups@NTLWorld.COM> - 2011-04-03 01:50 +0100
                Re: Is JFS really open source? Jonathan de Boyne Pollard <J.deBoynePollard-newsgroups@NTLWorld.COM> - 2011-04-03 19:32 +0100
                Re: Is JFS really open source? "Alex Taylor" <mail.me@reply.to.address> - 2011-04-04 09:51 -0500
                Re: Is JFS really open source? Jonathan de Boyne Pollard <J.deBoynePollard-newsgroups@NTLWorld.COM> - 2011-04-05 19:51 +0100
                Re: Is JFS really open source? Dave Yeo <dave.r.yeo@gmail.com> - 2011-04-05 16:34 -0700
                Re: Is JFS really open source? "Andy" <nospam-abwillis1-nopspam@nospam-gmail.com> - 2011-04-06 01:05 +0000
                Re: Is JFS really open source? "Alex Taylor" <mail.me@reply.to.address> - 2011-04-08 04:24 -0500
                Re: Is JFS really open source? Paul Ratcliffe <abuse@orac12.clara34.co56.uk78> - 2011-04-08 11:49 +0000
                Re: Is JFS really open source? "Alex Taylor" <mail.me@reply.to.address> - 2011-04-10 01:26 -0500
                Re: Is JFS really open source? Jonathan de Boyne Pollard <J.deBoynePollard-newsgroups@NTLWorld.COM> - 2011-04-08 21:03 +0100
                Re: Is JFS really open source? "Alex Taylor" <mail.me@reply.to.address> - 2011-04-10 01:25 -0500
                Re: Is JFS really open source? Dave Yeo <dave.r.yeo@gmail.com> - 2011-04-10 00:42 -0700
                Re: Is JFS really open source? "Allan" <allan2@warpspeed.dyndns.dk> - 2011-04-10 21:31 +0200
                Re: Is JFS really open source? "A.D. Fundum" <what.ever@neverm.ind> - 2011-04-10 23:37 +0200
                Re: Is JFS really open source? "A.D. Fundum" <what.ever@neverm.ind> - 2011-04-10 11:37 +0200
                Re: Is JFS really open source? "A.D. Fundum" <what.ever@neverm.ind> - 2011-04-10 22:42 +0200
                Re: Is JFS really open source? "A.D. Fundum" <what.ever@neverm.ind> - 2011-04-11 00:21 +0200
                Re: Is JFS really open source? "A.D. Fundum" <what.ever@neverm.ind> - 2011-04-11 01:15 +0200
              Re: Does JFS work on OS/2 version 4.0 and earlier? Jonathan de Boyne Pollard <J.deBoynePollard-newsgroups@NTLWorld.COM> - 2011-04-03 22:29 +0100
                Re: Does JFS work on OS/2 version 4.0 and earlier? "Allan" <allan2@warpspeed.dyndns.dk> - 2011-04-04 01:31 +0200
                Re: Does JFS work on OS/2 version 4.0 and earlier? Jonathan de Boyne Pollard <J.deBoynePollard-newsgroups@NTLWorld.COM> - 2011-04-04 11:31 +0100
              Re: formatting to FAT32 Lars Erdmann <lars.erdmann@arcor.de> - 2011-04-04 20:57 +0200
                Re: formatting to FAT32 Jonathan de Boyne Pollard <J.deBoynePollard-newsgroups@NTLWorld.COM> - 2011-04-05 15:09 +0100
                Re: formatting to FAT32 Lars Erdmann <lars.erdmann@arcor.de> - 2011-04-06 08:07 +0200
          Re: formatting to FAT32 KO Myung-Hun <komh@chollian.net> - 2011-04-02 22:13 +0900
            Re: formatting to FAT32 Jonathan de Boyne Pollard <J.deBoynePollard-newsgroups@NTLWorld.COM> - 2011-04-02 18:59 +0100
              Re: formatting to FAT32 KO Myung-Hun <komh@chollian.net> - 2011-04-03 14:51 +0900
                Re: formatting to FAT32 Jonathan de Boyne Pollard <J.deBoynePollard-newsgroups@NTLWorld.COM> - 2011-04-03 22:00 +0100
                Re: formatting to FAT32 KO Myung-Hun <komh@chollian.net> - 2011-04-04 22:19 +0900
                Re: formatting to FAT32 "A.D. Fundum" <what.ever@neverm.ind> - 2011-04-04 16:51 +0200
                Re: formatting to FAT32 Jonathan de Boyne Pollard <J.deBoynePollard-newsgroups@NTLWorld.COM> - 2011-04-06 18:20 +0100
                Re: formatting to FAT32 "Andy" <nospam-abwillis1-nopspam@nospam-gmail.com> - 2011-04-05 15:42 +0000
                Re: formatting to FAT32 "Allan" <allan2@warpspeed.dyndns.dk> - 2011-04-05 20:08 +0200
                Re: formatting to FAT32 "Andy" <nospam-abwillis1-nopspam@nospam-gmail.com> - 2011-04-05 22:49 +0000
                Re: formatting to FAT32 "Allan" <allan2@warpspeed.dyndns.dk> - 2011-04-06 01:23 +0200
                Re: formatting to FAT32 "Andy" <nospam-abwillis1-nopspam@nospam-gmail.com> - 2011-04-06 01:10 +0000
            Re: formatting to FAT32 Ilya Zakharevich <nospam-abuse@ilyaz.org> - 2011-04-02 22:00 +0000
              Re: formatting to FAT32 Jonathan de Boyne Pollard <J.deBoynePollard-newsgroups@NTLWorld.COM> - 2011-04-03 02:32 +0100
          ZIP.IFS, LZH "A.D. Fundum" <what.ever@neverm.ind> - 2011-04-05 16:42 +0200

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