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| author | Gerd Hoffmann <kraxel@suse.de> | 2006-07-01 04:36:18 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-07-01 09:56:02 -0700 |
| commit | 8ec4d41f88872e6a5980558e362c0174dce54e40 (patch) | |
| tree | f02eaf6b61832ded30bc19bd8e5d8494d91f8bc6 /include | |
| parent | 27b678dd04a636f2c351816f4b3042c8815d4e9d (diff) | |
| download | op-kernel-dev-8ec4d41f88872e6a5980558e362c0174dce54e40.zip op-kernel-dev-8ec4d41f88872e6a5980558e362c0174dce54e40.tar.gz | |
[PATCH] SMP alternatives: skip with UP kernels
Hide the magic in alternative.h and provide some dummy inline functions
for the UP case (gcc should manage to optimize away these calls). No
changes in module.c.
Cc: Dave Jones <davej@codemonkey.org.uk>
Cc: Andi Kleen <ak@muc.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-i386/alternative.h | 8 | ||||
| -rw-r--r-- | include/asm-x86_64/alternative.h | 9 |
2 files changed, 17 insertions, 0 deletions
diff --git a/include/asm-i386/alternative.h b/include/asm-i386/alternative.h index c61bd1a..96adbab 100644 --- a/include/asm-i386/alternative.h +++ b/include/asm-i386/alternative.h @@ -19,11 +19,19 @@ struct alt_instr { extern void apply_alternatives(struct alt_instr *start, struct alt_instr *end); struct module; +#ifdef CONFIG_SMP extern void alternatives_smp_module_add(struct module *mod, char *name, void *locks, void *locks_end, void *text, void *text_end); extern void alternatives_smp_module_del(struct module *mod); extern void alternatives_smp_switch(int smp); +#else +static inline void alternatives_smp_module_add(struct module *mod, char *name, + void *locks, void *locks_end, + void *text, void *text_end) {} +static inline void alternatives_smp_module_del(struct module *mod) {} +static inline void alternatives_smp_switch(int smp) {} +#endif #endif diff --git a/include/asm-x86_64/alternative.h b/include/asm-x86_64/alternative.h index 387c8f6..aa67bfd 100644 --- a/include/asm-x86_64/alternative.h +++ b/include/asm-x86_64/alternative.h @@ -17,11 +17,20 @@ struct alt_instr { extern void apply_alternatives(struct alt_instr *start, struct alt_instr *end); struct module; + +#ifdef CONFIG_SMP extern void alternatives_smp_module_add(struct module *mod, char *name, void *locks, void *locks_end, void *text, void *text_end); extern void alternatives_smp_module_del(struct module *mod); extern void alternatives_smp_switch(int smp); +#else +static inline void alternatives_smp_module_add(struct module *mod, char *name, + void *locks, void *locks_end, + void *text, void *text_end) {} +static inline void alternatives_smp_module_del(struct module *mod) {} +static inline void alternatives_smp_switch(int smp) {} +#endif #endif |
