Re: O_DIRECT, ext3fs, kernel 2.4.32... again

From: Bernd Eckenfels
Date: Mon May 01 2006 - 18:22:52 EST


Nathan Scott <nathans@xxxxxxx> wrote:
>> > Your interpretation is correct. It would be nicer for open() to
>> > fail on fs'es which don't support O_DIRECT, but v2.4 makes such
>> > check later at read/write unfortunately ;(
>>
>> Oops :(
>
> Nothing else really make sense due to fcntl...
> fcntl(fd, F_SETFL, O_DIRECT);
> ...can happen at any time, to enable/disable direct I/O.

Actually everytime the O_DIRECT feaure is enabled (open() or fctnl()) you
could fail, why not?

Gruss
Bernd
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