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Re: Fstrans rewrite without rwlock
On Jan 13, 2013, at 7:24 PM, Greg Troxel <gdt%ir.bbn.com@localhost> wrote:
> J. Hannken-Illjes <hannken%eis.cs.tu-bs.de@localhost> writes:
>> Attached is a complete rewrite based on passive serialization and
>> condvars. The fast paths (fstrans_start/fstrans_done on a file system
>> not suspended or suspending and fscow_run) now run without locks or
>> other atomic operations. Suspension and cow handler insertion and
>> removal is done with mutex / condvars.
> How many ports have you run the regression test on with the change?
> (Presumably there are no new failures.)
Did functional and stress tests on i386 only -- my atf testbed is
currently not working.
J. Hannken-Illjes - hannken%eis.cs.tu-bs.de@localhost - TU Braunschweig
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