On 25.06.2013 20:44, John Baldwin wrote:
Author: jhb Date: Tue Jun 25 18:44:15 2013 New Revision: 252209 URL: http://svnweb.freebsd.org/changeset/base/252209Log: Several improvements to rmlock(9). Many of these are based on patches provided by Isilon. - Add an rm_assert() supporting various lock assertions similar to other locking primitives. Because rmlocks track readers the assertions are always fully accurate unlike rw_assert() and sx_assert(). - Flesh out the lock class methods for rmlocks to support sleeping via condvars and rm_sleep() (but only while holding write locks), rmlock details in 'show lock' in DDB, and the lc_owner method used by dtrace. - Add an internal destroyed cookie so that API functions can assert that an rmlock is not destroyed. - Make use of rm_assert() to add various assertions to the API (e.g. to assert locks are held when an unlock routine is called). - Give RM_SLEEPABLE locks their own lock class and always use the rmlock's own lock_object with WITNESS. - Use THREAD_NO_SLEEPING() / THREAD_SLEEPING_OK() to disallow sleeping while holding a read lock on an rmlock.
Thanks! Would it make sense to move struct rm_queue from struct pcpu itself to using DPCPU as a next step?
Submitted by: andre
Actually these were only relayed by me and came from Max Laier / Stephan Uphoff. So all fame to them.
Obtained from: EMC/Isilon
-- Andre _______________________________________________ svn-src-head@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
