4 Commits

Author	SHA1	Message	Date
Pawel Jakub Dawidek	e35d3a7828	- Remove g_gate_hold()/g_gate_release() from start/done paths. It saves ... 4 mutex operations per I/O requests. - Use only one mutex to protect both (incoming and outgoing) queue. As MUTEX_PROFILING(9) shows, there is no big contention for this lock. - Protect sc_queue_count with queue mutex, instead of doing atomic operations on it. - Remove DROP_GIANT()/PICKUP_GIANT() - ggate is marked as MPSAFE and no Giant there.	2005-02-09 08:29:39 +00:00
Pawel Jakub Dawidek	37c9eaae29	Prefer signed type over unsigned to be able to assert negative ... reference count.	2004-05-03 21:02:02 +00:00
Pawel Jakub Dawidek	0d785336d1	Make it compile on 64-bit architectures. ... The biggest issue was that 16-bit atomic operations aren't supported on all architectures.	2004-05-02 17:57:49 +00:00
Pawel Jakub Dawidek	fe27e77251	Kernel bits of GEOM Gate.	2004-04-30 16:08:12 +00:00