* Thomas Gleixner <[email protected]> wrote:
> Hopefully the last iteration of this.
>
> I addressed all the review comments and added the following new ones:
>
> 1/n: plug unlock race.
>
> Patch was separately posted already in the safety of
> *mutex_unlock() thread.
>
> 2/n: Document and simplify the trylock path
>
> 3/n: Document and simplify try_to_take_rtmutex()
JFYI, the Blackfin cross-build fails with:
/home/mingo/tip/kernel/locking/rtmutex.c: In function
'rt_mutex_adjust_prio_chain':
/home/mingo/tip/kernel/locking/rtmutex.c:739: error: unable to find a register
to spill in class 'CCREGS'
/home/mingo/tip/kernel/locking/rtmutex.c:739: error: this is the insn:
(insn 82 75 107 2 /home/mingo/tip/kernel/locking/rtmutex.c:487 (set
(reg:BI 186)
(eq:BI (reg/v/f:SI 9 P1 [orig:85 top_waiter ] [85])
(const_int 0 [0x0]))) 111 {compare_eq} (nil))
/home/mingo/tip/kernel/locking/rtmutex.c:739: confused by earlier errors,
bailing out
Thanks,
Ingo
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