Messages in this thread | | | Date | Mon, 4 Jan 2010 02:33:28 -0500 | From | Christoph Hellwig <> | Subject | Re: [RFC][PATCH v3] readahead: introduce O_RANDOM for POSIX_FADV_RANDOM |
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On Mon, Jan 04, 2010 at 04:17:19PM +1100, Stephen Rothwell wrote: > > @@ -80,6 +80,10 @@ > > #define O_NDELAY O_NONBLOCK > > #endif > > > > +#ifndef O_RANDOM > > +#define O_RANDOM 010000000 /* random access pattern hint */ > > +#endif > > This value conflicts with O_CLOEXEC on alpha and parisc and O_NOATIME on > sparc.
Also when I tried to use this value for O_RSYNC and tested it I could not actually see it getting propagated by the open code.
Eitherway I don't think an O_ value is a good idea for a simple access pattern hint.
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