diff options
| author | Paul E. McKenney | 2017-04-19 02:17:35 +0200 |
|---|---|---|
| committer | Paul E. McKenney | 2017-04-26 20:23:28 +0200 |
| commit | 7f6733c3c648ddd6cf459c1b80ad388a95452955 (patch) | |
| tree | 2d463d3a2c5b47f3bfb7098e1000ad043ed0842f /kernel/rcu/tree.c | |
| parent | srcu: Exact tracking of srcu_data structures containing callbacks (diff) | |
| download | kernel-qcow2-linux-7f6733c3c648ddd6cf459c1b80ad388a95452955.tar.gz kernel-qcow2-linux-7f6733c3c648ddd6cf459c1b80ad388a95452955.tar.xz kernel-qcow2-linux-7f6733c3c648ddd6cf459c1b80ad388a95452955.zip | |
srcu: Make rcutorture writer stalls print SRCU GP state
In the past, SRCU was simple enough that there was little point in
making the rcutorture writer stall messages print the SRCU grace-period
number state. With the advent of Tree SRCU, this has changed. This
commit therefore makes Classic, Tiny, and Tree SRCU report this state
to rcutorture as needed.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Tested-by: Mike Galbraith <efault@gmx.de>
Diffstat (limited to 'kernel/rcu/tree.c')
| -rw-r--r-- | kernel/rcu/tree.c | 12 |
1 files changed, 4 insertions, 8 deletions
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c index 23aa02587d0f..91fff49d5869 100644 --- a/kernel/rcu/tree.c +++ b/kernel/rcu/tree.c @@ -704,15 +704,11 @@ void rcutorture_get_gp_data(enum rcutorture_type test_type, int *flags, default: break; } - if (rsp != NULL) { - *flags = READ_ONCE(rsp->gp_flags); - *gpnum = READ_ONCE(rsp->gpnum); - *completed = READ_ONCE(rsp->completed); + if (rsp == NULL) return; - } - *flags = 0; - *gpnum = 0; - *completed = 0; + *flags = READ_ONCE(rsp->gp_flags); + *gpnum = READ_ONCE(rsp->gpnum); + *completed = READ_ONCE(rsp->completed); } EXPORT_SYMBOL_GPL(rcutorture_get_gp_data); |