Re: [PATCH v2 09/13] rwsem: skip initial trylock in rwsem_down_write_failed
On 03/15/2013 06:54 AM, Michel Lespinasse wrote: > We can skip the initial trylock in rwsem_down_write_failed() if there are > known active lockers already, thus saving one likely-to-fail cmpxchg. > > Signed-off-by: Michel Lespinasse <walken@google.com>