Messages in this thread |  | | Subject | Re: [RFD] readonly/read-write semantics | From | Xavier Bestel <> | Date | 04 Sep 2001 12:20:28 +0200 |
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On mar, 2001-09-04 at 12:15, Alexander Viro wrote: > > > On 4 Sep 2001, Xavier Bestel wrote: > > > On mar, 2001-09-04 at 06:09, Alexander Viro wrote: > > > > > Read-only is more complex - in addition to mount side ("does anyone want > > > it to be r/w") there is a filesystem side ("does fs agree to be r/w")... > > > > How about, say, a reiserfs mounted r/o on a shared partition (loopback > > over nfs) ? If it contains errors, maybe 2 "clients" will attempt to > > rollback at the same time. Is the solution to never mount, even r/o, > > remote journalling fs ? > > ??? Rollback is purely local thing, so NFS client doesn't matter at all. > And nfsd is just an application running on server, whether it's a kernel > thread or a normal process.
Sorry, I meant journal replaying ... AFAIK, this operation will write on the media even if mounted r/o.
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