Messages in this thread | | | Date | Wed, 12 Feb 2003 14:42:26 -0800 | From | Chris Wedgwood <> | Subject | Re: O_DIRECT foolish question |
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On Wed, Feb 12, 2003 at 05:29:52PM -0500, Bruno Diniz de Paula wrote:
> But I am using multiples of page size in both buffer alignment and > buffer size (2nd and 3rd parameters of read). The issue is that > when I try to read files with sizes that are NOT multiples of block > size (and therefore also not multiples of page size), the read > syscall returns 0, with no errors.
What filesystem?
Can you send an strace of this occurring?
> So the question remains, am I able to read just files whose size is > a multiple of block size?
No.
You ideally should be able to read any length file with O_DIRECT. Even a 1-byte file.
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