diff options
| author | Jan Beulich <JBeulich@novell.com> | 2011-07-19 15:59:51 +0400 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-07-21 11:03:31 +0400 |
| commit | 4625cd637919edfb562e0d62abf94f52e9321335 (patch) | |
| tree | 88c4cf965722fb54731a6e8f632ec6ef6e83e194 /arch/x86/include/asm | |
| parent | dd2897bf0f4d523238e87dabb23e9634ea9ba73d (diff) | |
| download | linux-4625cd637919edfb562e0d62abf94f52e9321335.tar.xz | |
x86: Unify rwlock assembly implementation
Rather than having two functionally identical implementations
for 32- and 64-bit configurations, extend the existing assembly
abstractions enough to fold the two rwlock implementations into
a shared one.
Signed-off-by: Jan Beulich <jbeulich@novell.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/4E258DD7020000780004E3EA@nat28.tlf.novell.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/include/asm')
| -rw-r--r-- | arch/x86/include/asm/asm.h | 3 | ||||
| -rw-r--r-- | arch/x86/include/asm/frame.h | 11 |
2 files changed, 8 insertions, 6 deletions
diff --git a/arch/x86/include/asm/asm.h b/arch/x86/include/asm/asm.h index b3ed1e1460ff..5890beb021c4 100644 --- a/arch/x86/include/asm/asm.h +++ b/arch/x86/include/asm/asm.h @@ -15,7 +15,8 @@ # define __ASM_SEL(a,b) __ASM_FORM(b) #endif -#define __ASM_SIZE(inst) __ASM_SEL(inst##l, inst##q) +#define __ASM_SIZE(inst, ...) __ASM_SEL(inst##l##__VA_ARGS__, \ + inst##q##__VA_ARGS__) #define __ASM_REG(reg) __ASM_SEL(e##reg, r##reg) #define _ASM_PTR __ASM_SEL(.long, .quad) diff --git a/arch/x86/include/asm/frame.h b/arch/x86/include/asm/frame.h index 2c6fc9e62812..3b629f47eb65 100644 --- a/arch/x86/include/asm/frame.h +++ b/arch/x86/include/asm/frame.h @@ -1,5 +1,6 @@ #ifdef __ASSEMBLY__ +#include <asm/asm.h> #include <asm/dwarf2.h> /* The annotation hides the frame from the unwinder and makes it look @@ -7,13 +8,13 @@ frame pointer later */ #ifdef CONFIG_FRAME_POINTER .macro FRAME - pushl_cfi %ebp - CFI_REL_OFFSET ebp,0 - movl %esp,%ebp + __ASM_SIZE(push,_cfi) %__ASM_REG(bp) + CFI_REL_OFFSET __ASM_REG(bp), 0 + __ASM_SIZE(mov) %__ASM_REG(sp), %__ASM_REG(bp) .endm .macro ENDFRAME - popl_cfi %ebp - CFI_RESTORE ebp + __ASM_SIZE(pop,_cfi) %__ASM_REG(bp) + CFI_RESTORE __ASM_REG(bp) .endm #else .macro FRAME |