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| author |   Rik van Riel <riel@redhat.com> | 2014-04-26 23:15:35 -0700 |
|---|---|---|
| committer |   Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2014-05-19 10:52:04 -0700 |
| commit | 61f38db3e3c0e4c3be0858750e2cabeadaecac0c (patch) | |
| tree | 5ded19f41e8ceb49a55b2942fb0a5774a95126d1 /tools/perf/scripts/python/call-graph-from-postgresql.py | |
| parent | rcu: Variable name changed in tree_plugin.h and used in tree.c (diff) | |
| download | linux-dev-61f38db3e3c0e4c3be0858750e2cabeadaecac0c.tar.xz linux-dev-61f38db3e3c0e4c3be0858750e2cabeadaecac0c.zip | |
rcu: Provide API to suppress stall warnings while sysrc runs
Some sysrq handlers can run for a long time, because they dump a lot
of data onto a serial console. Having RCU stall warnings pop up in
the middle of them only makes the problem worse.
This commit provides rcu_sysrq_start() and rcu_sysrq_end() APIs to
temporarily suppress RCU CPU stall warnings while a sysrq request is
handled.
Signed-off-by: Rik van Riel <riel@redhat.com>
[ paulmck: Fix TINY_RCU build error. ]
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-postgresql.py')
0 files changed, 0 insertions, 0 deletions