aboutsummaryrefslogtreecommitdiff
path: root/kernel/dma.c
diff options
context:
space:
mode:
authorPaul E. McKenney <paul.mckenney@linaro.org>2012-08-01 14:29:20 -0700
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>2012-09-23 07:42:50 -0700
commita82dcc76021e22c174ba85d90b7a8c750b7362d0 (patch)
treef65ef1af700610b9e3e59545d2bf13e4cac33876 /kernel/dma.c
parent5cc900cf55fe58aaad93767c5a526e2a69cbcbc6 (diff)
rcu: Make offline-CPU checking allow for indefinite delays
The rcu_implicit_offline_qs() function implicitly assumed that execution would progress predictably when interrupts are disabled, which is of course not guaranteed when running on a hypervisor. Furthermore, this function is short, and is called from one place only in a short function. This commit therefore ensures that the timing is checked before checking the condition, which guarantees correct behavior even given indefinite delays. It also inlines rcu_implicit_offline_qs() into rcu_implicit_dynticks_qs(). Signed-off-by: Paul E. McKenney <paul.mckenney@linaro.org> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Diffstat (limited to 'kernel/dma.c')
0 files changed, 0 insertions, 0 deletions