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SubjectRe: [RFD] readonly/read-write semantics

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.

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