Home » Mailing list archives » linux-kernel » 2008 » February » 11

Re: [PATCH] [7/8] CPA: Don't flush caches on CPUs that support self-snoop

Previous message: [thread] [date] [author]
Next message: [thread] [date] [author]
[view in full thread]
From: Andi Kleen
Subject: Re: [PATCH] [7/8] CPA: Don't flush caches on CPUs that support self-snoop
Date: Monday, February 11, 2008 - 8:27 am

> > That is exactly the situation in pageattr.c. You're saying the manual

Yes that's true. It's one of the design problems of the intent API that makes
fixing this hard unfortunately.

(intent API assumes that the caller doesn't fully own the page to change, and
if you can't control it 100% it is not possible to unmap it temporarily) 


Ok.

-Andi


--
Previous message: [thread] [date] [author]
Next message: [thread] [date] [author]
Messages in current thread:
[PATCH] [0/8] Misc CPA patchkit, Andi Kleen, (Mon Feb 11, 2:50 am)
[PATCH] [1/8] CPA: Remove my copyright notice, Andi Kleen, (Mon Feb 11, 2:50 am)
[PATCH] [2/8] CPA: Remove inline from static_protections, Andi Kleen, (Mon Feb 11, 2:50 am)
[PATCH] [3/8] CPA: Fix some incorrect comments in the debu ..., Andi Kleen, (Mon Feb 11, 2:50 am)
[PATCH] [4/8] CPA: Ifdef the cpa pool for DEBUG_PAGEALLOC, Andi Kleen, (Mon Feb 11, 2:50 am)
[PATCH] [5/8] CPA: Move pool allocation/free into separate ..., Andi Kleen, (Mon Feb 11, 2:50 am)
[PATCH] [6/8] CPA: Remove BUG_ON for LRU/Compound pages, Andi Kleen, (Mon Feb 11, 2:50 am)
[PATCH] [7/8] CPA: Don't flush caches on CPUs that support ..., Andi Kleen, (Mon Feb 11, 2:50 am)
[PATCH] [8/8] CPA: Add statistics about state of direct ma ..., Andi Kleen, (Mon Feb 11, 2:50 am)
Re: [PATCH] [2/8] CPA: Remove inline from static_protections, Ingo Molnar, (Mon Feb 11, 7:04 am)
Re: [PATCH] [7/8] CPA: Don't flush caches on CPUs that sup ..., Arjan van de Ven, (Mon Feb 11, 8:04 am)
Re: [PATCH] [7/8] CPA: Don't flush caches on CPUs that sup ..., Andi Kleen, (Mon Feb 11, 8:12 am)
Re: [PATCH] [7/8] CPA: Don't flush caches on CPUs that sup ..., Arjan van de Ven, (Mon Feb 11, 8:21 am)
Re: [PATCH] [7/8] CPA: Don't flush caches on CPUs that sup ..., Andi Kleen, (Mon Feb 11, 8:27 am)
Re: [PATCH] [7/8] CPA: Don't flush caches on CPUs that sup ..., Siddha, Suresh B, (Mon Feb 11, 10:36 am)
Re: [PATCH] [7/8] CPA: Don't flush caches on CPUs that sup ..., Andi Kleen, (Mon Feb 11, 10:58 am)
Re: [PATCH] [7/8] CPA: Don't flush caches on CPUs that sup ..., Siddha, Suresh B, (Mon Feb 11, 12:47 pm)
Re: [PATCH] [7/8] CPA: Don't flush caches on CPUs that sup ..., Arjan van de Ven, (Mon Feb 11, 1:36 pm)
Re: [PATCH] [1/8] CPA: Remove my copyright notice, Thomas Gleixner, (Mon Feb 11, 5:42 pm)
Re: [PATCH] [7/8] CPA: Don't flush caches on CPUs that sup ..., Andi Kleen, (Tue Feb 12, 1:45 am)
Re: [PATCH] [6/8] CPA: Remove BUG_ON for LRU/Compound pages, Thomas Gleixner, (Sun Feb 17, 7:07 am)