Re: [PATCH] x86: Create clflush() inline, remove hardcoded wbinvd

Andi Kleen wrote:
>> The main reason is that everyone seems to invoke it either incorrectly
> Where is it incorrect? 

Using "r" or "m" (as opposed as "+m") gives gcc the wrong dependency
information, and it could, at least in theory, cause memory references
to be moved around it -- especially when using "r".

	-hpa
-
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] x86: Create clflush() inline, remove hardcoded wbinvd
  - From: Andi Kleen <[email protected]>

References:
- [PATCH] Use wbinvd() macro instead of raw inline assembly in .c files
  - From: Glauber de Oliveira Costa <[email protected]>
- [PATCH] x86: Create clflush() inline, remove hardcoded wbinvd
  - From: "H. Peter Anvin" <[email protected]>
- Re: [PATCH] x86: Create clflush() inline, remove hardcoded wbinvd
  - From: Andi Kleen <[email protected]>
- Re: [PATCH] x86: Create clflush() inline, remove hardcoded wbinvd
  - From: "H. Peter Anvin" <[email protected]>
- Re: [PATCH] x86: Create clflush() inline, remove hardcoded wbinvd
  - From: Andi Kleen <[email protected]>

Prev by Date: Re: NFS mount gives ENETDOWN in -git15
Next by Date: Re: [GIT PATCH] ACPI patches for 2.6.23
Previous by thread: Re: [PATCH] x86: Create clflush() inline, remove hardcoded wbinvd
Next by thread: Re: [PATCH] x86: Create clflush() inline, remove hardcoded wbinvd
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]