On Wed, 6 Dec 2006, Christoph Lameter wrote: > > I'd really appreciate a cmpxchg that is generically available for > all arches. It will allow lockless implementation for various performance > criticial portions of the kernel. I suspect ARM may have been the last one without one, no? That said, cmpxchg won't necessarily be "high-performance" unless the hw supports it naturally in hardware, so.. Russell, are you ok with the code DavidH posted (the "try 2" one)? I'd like to get an ack from the ARM maintainer before applying it, but it looked ok. Linus - 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] WorkStruct: Implement generic UP cmpxchg() where an arch doesn't support it
- From: Russell King <[email protected]>
- Re: [PATCH] WorkStruct: Implement generic UP cmpxchg() where an arch doesn't support it
- From: Russell King <[email protected]>
- Re: [PATCH] WorkStruct: Implement generic UP cmpxchg() where an arch doesn't support it
- From: Matthew Wilcox <[email protected]>
- Re: [PATCH] WorkStruct: Implement generic UP cmpxchg() where an arch doesn't support it
- From: Al Viro <[email protected]>
- Re: [PATCH] WorkStruct: Implement generic UP cmpxchg() where an arch doesn't support it
- References:
- [PATCH] WorkStruct: Implement generic UP cmpxchg() where an arch doesn't support it
- From: David Howells <[email protected]>
- Re: [PATCH] WorkStruct: Implement generic UP cmpxchg() where an arch doesn't support it
- From: Christoph Lameter <[email protected]>
- [PATCH] WorkStruct: Implement generic UP cmpxchg() where an arch doesn't support it
- Prev by Date: Re: [PATCH] Export current_is_keventd() for libphy
- Next by Date: Re: Display class
- Previous by thread: Re: [PATCH] WorkStruct: Implement generic UP cmpxchg() where an arch doesn't support it
- Next by thread: Re: [PATCH] WorkStruct: Implement generic UP cmpxchg() where an arch doesn't support it
- Index(es):
 |