aboutsummaryrefslogtreecommitdiffstats
path: root/kernel/softlockup.c
diff options
context:
space:
mode:
authorSteven Rostedt <rostedt@goodmis.org>2008-02-29 12:46:50 -0500
committerIngo Molnar <mingo@elte.hu>2008-02-29 12:46:50 -0500
commit2232c2d8e0a6a31061dec311f3d1cf7624bc14f1 (patch)
tree1d90ec0b8bd4e3c154e386f005ef596ee25fa53f /kernel/softlockup.c
parentc0f4133b8f70769bc8dda977feb9a29109d6ccca (diff)
rcu: add support for dynamic ticks and preempt rcu
The PREEMPT-RCU can get stuck if a CPU goes idle and NO_HZ is set. The idle CPU will not progress the RCU through its grace period and a synchronize_rcu my get stuck. Without this patch I have a box that will not boot when PREEMPT_RCU and NO_HZ are set. That same box boots fine with this patch. This patch comes from the -rt kernel where it has been tested for several months. Signed-off-by: Steven Rostedt <srostedt@redhat.com> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/softlockup.c')
0 files changed, 0 insertions, 0 deletions