NFS EINVAL on open(... | O_TRUNC) on 2.6.23.9

[Gianluca Alberici <gianluca@abinetworks.biz>]

Hi,

Sorry for repeating but as far as i can see 2.6.23.11/12 got no changes
into NFS.

I've run into this problem 2.6.23.9. The open syscall will return
"Invalid argument" when O_TRUNC is set on existing files.

The same file can be opened for append or removed.

The evidence is for example:

mars:~# mount localhost:/opt/nfs/ /mnt/tmp
mars:~# echo "Hello" > /mnt/tmp/test-file
mars:~# echo "Hello" > /mnt/tmp/test-file
bash: /mnt/tmp/test-file: Invalid argument
mars:~# echo "Hello" > /mnt/tmp/test-file
bash: /mnt/tmp/test-file: Invalid argument
mars:~# echo "Hello" > /mnt/tmp/test-file
bash: /mnt/tmp/test-file: Invalid argument
mars:~# rm /mnt/tmp/test-file
mars:~# echo "Hello" > /mnt/tmp/test-file
mars:~# echo "Hello" > /mnt/tmp/test-file
bash: /mnt/tmp/test-file: Invalid argument


This is not present in 2.6.21.7.
How can this be fixed ?

TIA

Gianluca
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