Messages in this thread |  | | Date | Tue, 3 Sep 2002 13:08:14 -0300 (BRT) | From | Rik van Riel <> | Subject | Re: [RFC] mount flag "direct" |
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On Tue, 3 Sep 2002, Peter T. Breuer wrote: > "A month of sundays ago Maciej W. Rozycki wrote:" > > On Tue, 3 Sep 2002, Rik van Riel wrote: > > > And what if they both allocate the same disk block to another > > > file, simultaneously ? > > > > You need a mutex then. For SCSI devices a reservation is the way to go > > -- the RESERVE/RELEASE commands are mandatory for direct-access devices, > > so thy should work universally for disks. > > Is there provision in VFS for this operation?
No. Everybody but you seems to agree these things should be filesystem specific and not in the VFS.
> (i.e. care to point me at an entry point? I just grepped for "reserve" > and came up with nothing useful).
Good.
cheers,
Rik -- http://www.linuxsymposium.org/2002/ "You're one of those condescending OLS attendants" "Here's a nickle kid. Go buy yourself a real t-shirt"
http://www.surriel.com/ http://distro.conectiva.com/
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