Changes between Version 12 and Version 13 of kernel_locks

Timestamp:

Jan 19, 2015, 3:17:52 PM (10 years ago)

Author:

alain

Comment:

--

kernel_locks

@@ -17 +17 @@
 The '''simple_lock_t''', '''sbt_lock_t''', and '''spin_lock_t''' structures are implemented to have one single lock in a 64 bytes cache line, and should be aligned on a cache line boundary.
 
-== Atomic access functions ==
+== Atomic access function ==
 
  === unsigned int '''_atomic_increment'''( unsigned int * shared , unsigned int increment ) ===
@@ -23 +23 @@
  * '''shared''' : pointer on the shared variable
  * '''increment''' : increment value
+It returns the value of the shared variable before increment.
 
 == Simple lock access functions ==