Re: [PATCH 1/19] MUTEX: Introduce simple mutex implementation

On Tue, Dec 13, 2005 at 08:54:41AM +0100, Ingo Molnar wrote:
> - i did not touch the 'struct semaphore' namespace, but introduced a
>   'struct compat_semaphore'.

Because it's totally brindead.  Your compat_semaphore is a real semaphore
and your semaphore is a mutex.  So name them as such.

> - i introduced a 'type-sensitive' macro wrapper that switches down() 
>   (and the other APIs) to either to the assembly variant (if the 
>   variable's type is struct compat_semaphore), or switches it to the new 
>   generic mutex (if the type is struct semaphore), at build-time. There 
>   is no runtime overhead due to this build-time-switching.

And this one is probably is a great help to win the obsfucated C contests,
but otherwise just harmfull.

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

---

• Follow-Ups:
  • Re: [PATCH 1/19] MUTEX: Introduce simple mutex implementation
    • From: Ingo Molnar <[email protected]>

• References:
  • [PATCH 1/19] MUTEX: Introduce simple mutex implementation
    • From: David Howells <[email protected]>
  • Re: [PATCH 1/19] MUTEX: Introduce simple mutex implementation
    • From: Andrew Morton <[email protected]>
  • Re: [PATCH 1/19] MUTEX: Introduce simple mutex implementation
    • From: Ingo Molnar <[email protected]>

• Prev by Date: Re: [PATCH] Add mem_nmi_panic enable system to panic on hard error
• Next by Date: Re: [PATCH 1/19] MUTEX: Introduce simple mutex implementation
• Previous by thread: Re: [PATCH 1/19] MUTEX: Introduce simple mutex implementation
• Next by thread: Re: [PATCH 1/19] MUTEX: Introduce simple mutex implementation
• Index(es):
  • Date
  • Thread

[Index of Archives]     [Kernel Newbies]     [Netfilter]     [Bugtraq]     [Photo]     [Stuff]     [Gimp]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Video 4 Linux]     [Linux for the blind]     [Linux Resources]