[TAG] Question about file mtime on linux

[John Karns]

On Wed, 13 Apr 2005, mso at oz.net wrote:

> John Karns wrote:
>> In fact I've sometimes wondered about this myself: if there is a pending
>> write to a file via a dirty buffer, is that automatically taken into
>> account if I read the file before the buffer is flushed?  I.e., is the
>> pending change transparently mapped to a read of the file by libc or
>> whatever?
>
> It would be a very severe bug if it didn't read from the buffer, since
> that's the official version currently.  I've sometimes wondered this
> myself, but I've found the kernel developers pretty trustworthy so I
> assumed they wouldn't do such a thing.

Ok, that's how I had imagined that it [sw]ould work.  [Mental note: It may 
make a worth while endeaver for me one of these days to read up on it a 
bit.]  I suspect that there could exist a lower level means of file access 
that sports an option to bypass that if desired, at least for read access.

-- 
John Karns