On 03/15/2013 06:54 AM, Michel Lespinasse wrote:
When trying to acquire a read lock, the RWSEM_ACTIVE_READ_BIAS adjustment
doesn't cause other readers to block, so we never have to worry about waking
them back after canceling this adjustment in rwsem_down_read_failed().
We also never want to steal the lock in rwsem_down_read_failed(), so we
don't have to grab the wait_lock either.
Signed-off-by: Michel Lespinasse <[email protected]>
Reviewed-by: Rik van Riel <[email protected]>
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