Re: [PATCH v7 1/4] spinlock: A new lockref structure for lockless update of refcount

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Thu, 2013-08-29 at 16:42 -0700, Linus Torvalds wrote:

> For architecture people (ie Ben, if you want to try this on ppc64),
> the thing that it needs from an architecture:
> 
>  - the raw_spinlock_t and the "unsigned long" needs to fit in a u64.

I assume you mean unsigned int ? :-)

 .../...

>  - the architecture needs to implement a simple
> "arch_spin_value_unlocked()" macro, which takes a raw_spinlock_t value
> and says whether it is unlocked or not.

What's wrong with the existing arch_spin_is_locked() ?

BTW. Do you have your test case at hand ?

Cheers,
Ben.

--
To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html




[Index of Archives]     [Linux Ext4 Filesystem]     [Union Filesystem]     [Filesystem Testing]     [Ceph Users]     [Ecryptfs]     [AutoFS]     [Kernel Newbies]     [Share Photos]     [Security]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux Cachefs]     [Reiser Filesystem]     [Linux RAID]     [Samba]     [Device Mapper]     [CEPH Development]
  Powered by Linux