tree dd1e46ceb37ab4d5b6688d04805240eb9fcb7fbe
parent 35b52c70534cb7193b218ec12efe6bc595312097
author Andy Grover <andy.grover@oracle.com> 1266631301 -0800
committer Andy Grover <andy.grover@oracle.com> 1283994452 -0700

RDS: Rewrite rds_send_drop_to() for clarity

This function has been the source of numerous bugs; it's just
too complicated. Simplified to nest spinlocks cleanly within
the second loop body, and kick out early if there are no
rms to drop.

This will be a little slower because conn lock is grabbed for
each entry instead of "caching" the lock across rms, but this
should be entirely irrelevant to fastpath performance.

Signed-off-by: Andy Grover <andy.grover@oracle.com>