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| author | Petr Mladek <pmladek@suse.com> | 2015-09-09 12:09:49 -0700 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2015-10-06 11:15:59 -0700 |
| commit | 77f81fe08ebd99d7e0eefde42ddac06a675bc4ad (patch) | |
| tree | 6d5d0c2faad078f738bf6c1d7e0d63504101e720 /kernel/rcu/tree_trace.c | |
| parent | 49f5903b473c5f63f3b57856d1bd4593db0a2eef (diff) | |
| download | blackbird-obmc-linux-77f81fe08ebd99d7e0eefde42ddac06a675bc4ad.tar.gz blackbird-obmc-linux-77f81fe08ebd99d7e0eefde42ddac06a675bc4ad.zip | |
rcu: Finish folding ->fqs_state into ->gp_state
Commit commit 4cdfc175c25c89ee ("rcu: Move quiescent-state forcing
into kthread") started the process of folding the old ->fqs_state into
->gp_state, but did not complete it. This situation does not cause
any malfunction, but can result in extremely confusing trace output.
This commit completes this task of eliminating ->fqs_state in favor
of ->gp_state.
The old ->fqs_state was also used to decide when to collect dyntick-idle
snapshots. For this purpose, we add a boolean variable into the kthread,
which is set on the first call to rcu_gp_fqs() for a given grace period
and clear otherwise.
Signed-off-by: Petr Mladek <pmladek@suse.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Diffstat (limited to 'kernel/rcu/tree_trace.c')
| -rw-r--r-- | kernel/rcu/tree_trace.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/rcu/tree_trace.c b/kernel/rcu/tree_trace.c index 6fc4c5ff3bb5..1d61f5ba4641 100644 --- a/kernel/rcu/tree_trace.c +++ b/kernel/rcu/tree_trace.c @@ -268,7 +268,7 @@ static void print_one_rcu_state(struct seq_file *m, struct rcu_state *rsp) gpnum = rsp->gpnum; seq_printf(m, "c=%ld g=%ld s=%d jfq=%ld j=%x ", ulong2long(rsp->completed), ulong2long(gpnum), - rsp->fqs_state, + rsp->gp_state, (long)(rsp->jiffies_force_qs - jiffies), (int)(jiffies & 0xffff)); seq_printf(m, "nfqs=%lu/nfqsng=%lu(%lu) fqlh=%lu oqlen=%ld/%ld\n", |
