From: "Robert P. J. Day" <rpjday@mindspring.com>

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>
---

 include/asm-i386/atomic.h |   11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff -puN include/asm-i386/atomic.h~some-grammatical-fixups-and-additions-to-atomich-kernel-doc include/asm-i386/atomic.h
--- a/include/asm-i386/atomic.h~some-grammatical-fixups-and-additions-to-atomich-kernel-doc
+++ a/include/asm-i386/atomic.h
@@ -51,7 +51,7 @@ static __inline__ void atomic_add(int i,
 }
 
 /**
- * atomic_sub - subtract the atomic variable
+ * atomic_sub - subtract integer from atomic variable
  * @i: integer value to subtract
  * @v: pointer of type atomic_t
  * 
@@ -170,7 +170,7 @@ static __inline__ int atomic_add_negativ
 }
 
 /**
- * atomic_add_return - add and return
+ * atomic_add_return - add integer and return
  * @v: pointer of type atomic_t
  * @i: integer value to add
  *
@@ -202,6 +202,13 @@ 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);
_