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2017-03-08Upgrade to 4.4.50-rt62Yunhong Jiang5-15/+188
The current kernel is based on rt kernel v4.4.6-rt14. We will upgrade it to 4.4.50-rt62. The command to achieve it is: a) Clone a git repo from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-stable-rt.git b) Get the diff between this two changesets: git diff 640eca2901f3435e616157b11379d3223a44b391 705619beeea1b0b48219a683fd1a901a86fdaf5e where the two commits are: [yjiang5@jnakajim-build linux-stable-rt]$ git show --oneline --name-only 640eca2901f3435e616157b11379d3223a44b391 640eca2901f3 v4.4.6-rt14 localversion-rt [yjiang5@jnakajim-build linux-stable-rt]$ git show --oneline --name-only 705619beeea1b0b48219a683fd1a901a86fdaf5e 705619beeea1 Linux 4.4.50-rt62 localversion-rt c) One patch has been backported thus revert the patch before applying. filterdiff -p1 -x scripts/package/Makefile ~/tmp/v4.4.6-rt14-4.4.50-rt62.diff |patch -p1 --dry-run Upstream status: backport Change-Id: I244d57a32f6066e5a5b9915f9fbf99e7bbca6e01 Signed-off-by: Yunhong Jiang <yunhong.jiang@linux.intel.com>
2016-07-21Add the "timers: do not raise softirq unconditionally" temporarilyYunhong Jiang1-7/+0
This patch enable the nohz_full and is important for RT. Bring it back temporarily, while waiting for more work on RT community. Please refer to https://lkml.org/lkml/2015/3/17/783 for more information of the revert. A little rebase needed because it's reverted on old code base. Please notice that we change the rt_mutex_trylock() so that we can get the tvec_base lock there. This is sure to be wrong, and should be fixed cleanly. And that's the major reason the original patch are reverted on the upstream RT linux. Will discuss with upstream on how to achieve the solution. Upstream status: pending Change-Id: I2747e087faf4145b69b800a60b8d9414bc71e206 Signed-off-by: Yunhong Jiang <yunhong.jiang@linux.intel.com>
2016-04-13These changes are the raw update to linux-4.4.6-rt14. Kernel sourcesJosé Pekkarinen17-816/+1567
are taken from kernel.org, and rt patch from the rt wiki download page. During the rebasing, the following patch collided: Force tick interrupt and get rid of softirq magic(I70131fb85). Collisions have been removed because its logic was found on the source already. Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769 Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
2015-08-04Add the rt linux 4.1.3-rt3 as baseYunhong Jiang29-0/+13571
Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>