tree 263dc7f4fa4256869cea19e6ea8a077d29bd95ad
parent a02b93bd75a9d156117264d88069566e447397e2
author David 'Digit' Turner <digit@google.com> 1277759414 -0700
committer David 'Digit' Turner <digit@google.com> 1278108597 -0700

libc: Fix sem_post() implementation to wake up all waiting threads.

This also allows us to optimize the case where we increment an
uncontended semaphore (no need to call futex_wake() then).

Change-Id: Iad48efe8551dc66dc89d3e3f18c001e5a6c1939f