Re: Linux 2.4.5-ac9

Alan Cox (alan@lxorguk.ukuu.org.uk)
Wed, 6 Jun 2001 22:43:31 +0100 (BST)


> Looks bogus. Independent processes can open the same device
> once for reading and once for writing, now you are serializing
> needlessly these processes. Please revert.

Some of the serializing is not a bug but I agree that patch is not yet
right. Think for example about

thread1 thread2

write
blocks mmap

Also parallel buffer allocations

Alan

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