git: async_rcvd: Move MSGF_DONE test under async rcvd spinlock
Sepherosa Ziehau
sephe at crater.dragonflybsd.org
Tue Mar 19 00:53:48 PDT 2013
commit f65f767c30993b1fc4cb440689529d824ba5a60b
Author: Sepherosa Ziehau <sephe at dragonflybsd.org>
Date: Tue Mar 19 15:56:11 2013 +0800
async_rcvd: Move MSGF_DONE test under async rcvd spinlock
This flag is meant to be protected by the async rcvd spinlock; use
ssleep instead of tsleep if race happened.
Sysctl node kern.ipc.async_rcvd_drop_race is added to count the
number of async rcvd message dropping races.
Summary of changes:
sys/kern/uipc_msg.c | 17 +++++++++++------
1 file changed, 11 insertions(+), 6 deletions(-)
http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/f65f767c30993b1fc4cb440689529d824ba5a60b
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