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| author | Robert P. J. Day <rpjday@mindspring.com> | 2007-05-08 09:35:08 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-05-08 20:15:20 +0200 |
| commit | cc38682f356f95ca0e409679b76db46af6036460 (patch) | |
| tree | 6d4df198c8a72c6bcb8649cd30c147c188dbec3b /include/asm-i386 | |
| parent | uml: pcap devices should get MACs from command line (diff) | |
| download | linux-cc38682f356f95ca0e409679b76db46af6036460.tar.xz linux-cc38682f356f95ca0e409679b76db46af6036460.zip | |
Some grammatical fixups and additions to atomic.h kernel-doc content
Tweak and add content for extractable documentation in asm-i386/atomic.h.
Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/asm-i386')
| -rw-r--r-- | include/asm-i386/atomic.h | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/include/asm-i386/atomic.h b/include/asm-i386/atomic.h index b9fd03cef51e..0baa2f89463c 100644 --- a/include/asm-i386/atomic.h +++ b/include/asm-i386/atomic.h @@ -52,7 +52,7 @@ static __inline__ void atomic_add(int i, atomic_t *v) } /** - * atomic_sub - subtract the atomic variable + * atomic_sub - subtract integer from atomic variable * @i: integer value to subtract * @v: pointer of type atomic_t * @@ -171,7 +171,7 @@ static __inline__ int atomic_add_negative(int i, atomic_t *v) } /** - * atomic_add_return - add and return + * atomic_add_return - add integer and return * @v: pointer of type atomic_t * @i: integer value to add * @@ -203,6 +203,13 @@ no_xadd: /* Legacy 386 processor */ #endif } +/** + * atomic_sub_return - subtract integer and return + * @v: pointer of type atomic_t + * @i: integer value to subtract + * + * Atomically subtracts @i from @v and returns @v - @i + */ static __inline__ int atomic_sub_return(int i, atomic_t *v) { return atomic_add_return(-i,v); |