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>
diff --git a/include/asm-i386/atomic.h b/include/asm-i386/atomic.h
index b9fd03c..0baa2f8 100644
--- a/include/asm-i386/atomic.h
+++ b/include/asm-i386/atomic.h
@@ -52,7 +52,7 @@
}
/**
- * 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 @@
}
/**
- * 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 @@
#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);