The HyperNews Linux KHG Discussion Pages

## down/up() - semaphores; set/clear/test_bit()

  Forum: Supporting Functions
  Date: Tue, 25 Mar 1997 17:38:15 GMT
  From: Erez Strauss <unknown>

The following features are almost not documented (AFAIK). semaphore locking with down() up() functions and the usage of them. The bit operations set_bit() clear_bit() and test_bit() are also missing usage information. Those functions are important for drivers programmers that should take care about SMP/resource locking. Please email me <erez@newplaces.com> refrences if you know about. The KHG is missing an example section. Each function in the Linux kernel should have an example page in the KGH.