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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-02-28 21:35:09 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-02-28 21:35:09 +0300 |
| commit | a7f16d10b510f9ee3500af7831f2e3094fab3dca (patch) | |
| tree | bd2bff5e13083e1103205ff926342d6674f8e5c5 /arch/x86/include/asm/alternative.h | |
| parent | f66ffdedbf0fc059a92219bb08c1dbcac88f074b (diff) | |
| parent | 17c0e7107bed3d578864e6519f7f4e4c324c8f58 (diff) | |
| download | linux-a7f16d10b510f9ee3500af7831f2e3094fab3dca.tar.xz | |
Merge branch 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86: Mark atomic irq ops raw for 32bit legacy
x86: Merge show_regs()
x86: Macroise x86 cache descriptors
x86-32: clean up rwsem inline asm statements
x86: Merge asm/atomic_{32,64}.h
x86: Sync asm/atomic_32.h and asm/atomic_64.h
x86: Split atomic64_t functions into seperate headers
x86-64: Modify memcpy()/memset() alternatives mechanism
x86-64: Modify copy_user_generic() alternatives mechanism
x86: Lift restriction on the location of FIX_BTMAP_*
x86, core: Optimize hweight32()
Diffstat (limited to 'arch/x86/include/asm/alternative.h')
| -rw-r--r-- | arch/x86/include/asm/alternative.h | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/arch/x86/include/asm/alternative.h b/arch/x86/include/asm/alternative.h index ac80b7d70014..f1e253ceba4b 100644 --- a/arch/x86/include/asm/alternative.h +++ b/arch/x86/include/asm/alternative.h @@ -130,11 +130,16 @@ static inline int alternatives_text_reserved(void *start, void *end) asm volatile (ALTERNATIVE(oldinstr, newinstr, feature) \ : output : "i" (0), ## input) +/* Like alternative_io, but for replacing a direct call with another one. */ +#define alternative_call(oldfunc, newfunc, feature, output, input...) \ + asm volatile (ALTERNATIVE("call %P[old]", "call %P[new]", feature) \ + : output : [old] "i" (oldfunc), [new] "i" (newfunc), ## input) + /* * use this macro(s) if you need more than one output parameter * in alternative_io */ -#define ASM_OUTPUT2(a, b) a, b +#define ASM_OUTPUT2(a...) a struct paravirt_patch_site; #ifdef CONFIG_PARAVIRT |