Re: 2.4.20-pre11 /proc/partitions read

From: Jan Kasprzak (kas@informatics.muni.cz)
Date: Wed Oct 23 2002 - 03:36:16 EST


Marcelo Tosatti wrote:
:
:
: On Tue, 22 Oct 2002, Andries Brouwer wrote:
:
: > On Tue, Oct 22, 2002 at 04:19:57PM +0200, Jan Kasprzak wrote:
: >
: > > I.e. if you read the /proc/partitions in single read() call,
: > > it gets read OK. However, if you read() with smaller-sized blocks,
: > > you get the truncated contents.
: >
: > Having statistics in /proc/partitions leads to such problems.
: > Make sure you do not ask for them.

        Yes I have CONFIG_BLK_STATS (and I need this to know
when my server gets overloaded).
:
: Its not forced behaviour. Its a config option and its defaulted to off.
:
: Some people want it.

        Yes.

        Maybe it should be documented that you have to read it
in a single read() syscall with big enough buffer.

-Yenya

-- 
| Jan "Yenya" Kasprzak  <kas at {fi.muni.cz - work | yenya.net - private}> |
| GPG: ID 1024/D3498839      Fingerprint 0D99A7FB206605D7 8B35FCDE05B18A5E |
| http://www.fi.muni.cz/~kas/   Czech Linux Homepage: http://www.linux.cz/ |
|-- If you start doing things because you hate others and want to screw  --|
|-- them over the end result is bad.   --Linus Torvalds to the BBC News  --|
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