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SubjectRe: adding proper O_SYNC/O_DSYNC, was Re: O_DIRECT and barriers
Christoph Hellwig wrote:
> P.S. better naming suggestions for O_FULLSYNC welcome

O_FULLSYNC might get confused with MacOS X's F_FULLSYNC, which means
something else: fsync through hardware volatile write caches.

(Might we even want to provide O_FULLSYNC and O_FULLDATASYNC to mean
that, eventually?)

O_ISYNC is a bit misleading if we don't really offer "flush just the
inode state" by itself.

So it should at least start with underscores: __O_ISYNC.

How about __O_SYNC_NEW with

#define O_SYNC (O_DSYNC|__O_SYNC_NEW)
I think that tells people reading the headers a bit about what to
expect on older kernels too.

-- Jamie


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