Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=d88879b2d0225da3ba460bbdb8361bb049653671
Commit: d88879b2d0225da3ba460bbdb8361bb049653671
Parent: bdb4f156064e5f627213af82292eb8b5cf2dc5aa
Author: Jan Beulich <[EMAIL PROTECTED]>
AuthorDate: Wed Jan 30 13:31:21 2008 +0100
Committer: Ingo Molnar <[EMAIL PROTECTED]>
CommitDate: Wed Jan 30 13:31:21 2008 +0100
x86-64: make pda's cpunumber and nodenumber unsigned
This generally allows better code to be generated, since the zero-
extension during 32-bit operations comes for free (needed when the
result is used as array index or similar), whereas sign extension must
be done explicitly and frequently requires a one byte larger
instruction due to the necessary rex64 prefix.
Signed-off-by: Jan Beulich <[EMAIL PROTECTED]>
Signed-off-by: Ingo Molnar <[EMAIL PROTECTED]>
Signed-off-by: Thomas Gleixner <[EMAIL PROTECTED]>
---
include/asm-x86/pda.h | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/include/asm-x86/pda.h b/include/asm-x86/pda.h
index 3d9dd65..b620d0c 100644
--- a/include/asm-x86/pda.h
+++ b/include/asm-x86/pda.h
@@ -15,14 +15,14 @@ struct x8664_pda {
unsigned long kernelstack; /* 16 top of kernel stack for current */
unsigned long oldrsp; /* 24 user rsp for system call */
int irqcount; /* 32 Irq nesting counter. Starts with -1 */
- int cpunumber; /* 36 Logical CPU number */
+ unsigned int cpunumber; /* 36 Logical CPU number */
#ifdef CONFIG_CC_STACKPROTECTOR
unsigned long stack_canary; /* 40 stack canary value */
/* gcc-ABI: this canary MUST be at
offset 40!!! */
#endif
char *irqstackptr;
- int nodenumber; /* number of current node */
+ unsigned int nodenumber; /* number of current node */
unsigned int __softirq_pending;
unsigned int __nmi_count; /* number of NMI on this CPUs */
short mmu_state;
-
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