If there are no comments for these two patches. I will move forward for other parts.
Sounds good? 2016-06-01 19:28 GMT-07:00 Charles Cui <charles.cui1...@gmail.com>: > Hi guys, > > I have attached patches based on comments from Christos. > The new patch used atomic_inc_uint_nv to limit the number of > sems used by each process. I have tested these patches. > They worked. > > 2016-05-30 14:19 GMT-07:00 Charles Cui <charles.cui1...@gmail.com>: > >> good to know atomic_inc_uint_nv is implemented using cas. >> I will update the patch and send you guys later (being careful about the >> format) >> >> Thanks Charles >> >> 2016-05-30 13:46 GMT-07:00 Christos Zoulas <chris...@zoulas.com>: >> >>> On May 30, 1:43pm, charles.cui1...@gmail.com (Charles Cui) wrote: >>> -- Subject: Re: pthread library related >>> >>> | I am not familiar with _nv() (are there examples in the netbsd code >>> base? I >>> | searched _nv() in nxr, but did not found anything meaningful.), >>> | but if you want to use atomic operations, one possible way is >>> | compare-and-swap (CAS). >>> | it has stronger guarantee than atomic inc or atomic dec, but also >>> larger >>> | overhead. >>> >>> man atomic_inc_uint_nv >>> >>> http://nxr.netbsd.org/xref/src/sys/fs/tmpfs/tmpfs_mem.c#185 >>> >>> christos >>> >> >> >
