Hi

Copied idr.[ch] from 2.6.11 with one modification: replaced the
__clear_bit() calls with clear_bit() (__clear_bit() is not available and
I didn't wanted to have one more architecture specific backport, see the
atomic_inc_return patch). As far as I can see __clear_bit() misses a
"lock" on x86. I don't know if the overhead is big or not...

This is needed by "inotify.c".

-- 
Mihai Rusu
Linux System Development

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