Re: [PATCH 4/8] fs: kill i_alloc_sem

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On Tue, Jun 21, 2011 at 03:40:56PM +1000, Dave Chinner wrote:
> Modification of inode->i_state is not safe outside the
> inode->i_lock.

We never actually set the new bit in i_state, we just use it as a key
for the hashed lookups.  Or rather we try to, as I misunderstood how
wait_on_bit works, so currently we busywait for i_dio_count to reach
zero.  I'll respin a version that actually works as expected.

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