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7 Commits

Author SHA1 Message Date
Olivier Houchard
a72c9dc53f Define CK_MD_TSO for the relevant arches (i386, amd64 and sparc64). 
Defaulting to CK_MD_RMO has the unfortunate side effect of generating
memory barriers that are useless on those arches, and the even more
unfortunate side effect of generating lfence/sfence/mfence on i386, even
if older CPUs don't support it.
This should fix the panic reported when using IPFW on a Pentium 3.
Note that mfence and sfence might still be used in a few case, but that
shouldn't happen in FreeBSD right now, and should be fixed upstream first.

MFC after:	1 week
 2018-02-16 17:50:06 +00:00
Olivier Houchard
7e8cd4e1af Import CK as of commit 6b141c0bdd21ce8b3e14147af8f87f22b20ecf32 
This brings us changes we needed in ck_epoch.
 2017-04-09 21:02:05 +00:00
Olivier Houchard
08c22689e6 Merge CK as of commit 24d26965d1a28039062ba3bcf9433b623f3d2c5e, to get 
a fix in ck_epoch.
 2017-02-28 23:30:14 +00:00
Olivier Houchard
8f87df16d4 Merge CK as of commit 255a47553aa5e8d0bb5f8eec63acac7f4c25a6d8, mostly 
to make sure we don't use any FP instruction.
 2016-12-30 18:23:58 +00:00
Olivier Houchard
114b7c00ca Add a FREEBSD-Xlist file for CK. 2016-11-28 21:16:03 +00:00
Olivier Houchard
5ac7aafe09 Add FreeBSD-specific files. 2016-11-28 20:33:30 +00:00
Olivier Houchard
1fb62fb074 Import Concurrency Kit in the kernel. 
CK is a toolkit providing different lockfree algorithms/data structures.
More information can be found here : www.concurrencykit.org
 2016-11-28 20:27:58 +00:00