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| author | Arnd Bergmann <arnd@arndb.de> | 2009-05-13 22:56:33 +0000 |
|---|---|---|
| committer | Arnd Bergmann <arnd@klappe2.(none)> | 2009-06-11 21:02:37 +0200 |
| commit | aafe4dbed0bf6cbdb2e9f03e1d42f8a540d8541d (patch) | |
| tree | 5cc3e500ebb234ad82928de0ed680373c616dc44 /include/asm-generic/spinlock.h | |
| parent | 9858c60cc2d33b18367b2bc6947e3ea23db26ccb (diff) | |
| download | lwn-aafe4dbed0bf6cbdb2e9f03e1d42f8a540d8541d.tar.gz lwn-aafe4dbed0bf6cbdb2e9f03e1d42f8a540d8541d.zip | |
asm-generic: add generic versions of common headers
These are all kernel internal interfaces that get copied
around a lot. In most cases, architectures can provide
their own optimized versions, but these generic versions
can work as well.
I have tried to use the most common contents of each
header to allow existing architectures to migrate easily.
Thanks to Remis for suggesting a number of cleanups.
Signed-off-by: Remis Lima Baima <remis.developer@googlemail.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'include/asm-generic/spinlock.h')
| -rw-r--r-- | include/asm-generic/spinlock.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/include/asm-generic/spinlock.h b/include/asm-generic/spinlock.h new file mode 100644 index 000000000000..1547a03ac50f --- /dev/null +++ b/include/asm-generic/spinlock.h @@ -0,0 +1,11 @@ +#ifndef __ASM_GENERIC_SPINLOCK_H +#define __ASM_GENERIC_SPINLOCK_H +/* + * You need to implement asm/spinlock.h for SMP support. The generic + * version does not handle SMP. + */ +#ifdef CONFIG_SMP +#error need an architecture specific asm/spinlock.h +#endif + +#endif /* __ASM_GENERIC_SPINLOCK_H */ |