BMC/Intel-BMC/linux.git/kernel/rcu/rcuperf.c, branch dev-5.2

rcuperf: Fix cleanup path for invalid perf_type strings

2019-03-26T21:42:53+00:00

If the specified rcuperf.perf_type is not in the rcu_perf_init() function's perf_ops[] array, rcuperf prints some console messages and then invokes rcu_perf_cleanup() to set state so that a future torture test can run. However, rcu_perf_cleanup() also attempts to end the test that didn't actually start, and in doing so relies on the value of cur_ops, a value that is not particularly relevant in this case. This can result in confusing output or even follow-on failures due to attempts to use facilities that have not been properly initialized. This commit therefore sets the value of cur_ops to NULL in this case and inserts a check near the beginning of rcu_perf_cleanup(), thus avoiding relying on an irrelevant cur_ops value. Signed-off-by: Paul E. McKenney

Merge branches 'doc.2019.01.26a', 'fixes.2019.01.26a', 'sil.2019.01.26a', 'spdx.2019.02.09a', 'srcu.2019.01.26a' and 'torture.2019.01.26a' into HEAD

2019-02-09T16:47:52+00:00

doc.2019.01.26a: Documentation updates. fixes.2019.01.26a: Miscellaneous fixes. sil.2019.01.26a: Removal of a few more spin_is_locked() instances. spdx.2019.02.09a: Add SPDX identifiers to RCU files srcu.2019.01.26a: SRCU updates. torture.2019.01.26a: Torture-test updates.

rcu/rcuperf: Convert to SPDX license identifier

2019-02-09T16:43:35+00:00

Replace the license boiler plate with a SPDX license identifier. While in the area, update an email address. Signed-off-by: Paul E. McKenney Reviewed-by: Thomas Gleixner

rcuperf: Stop abusing IS_ENABLED()

2019-01-25T23:37:11+00:00

The ever-evolving IS_ENABLED() macro is intended for CONFIG_* Kconfig options, but rcuperf currently uses it for the decidedly non-CONFIG_* MODULE macro. In the spirit of not inviting trouble, this commit substitutes tried-and-true #ifdef. Reported-by: Ingo Molnar Signed-off-by: Paul E. McKenney Acked-by: Ingo Molnar

Merge branches 'doc.2018.08.30a', 'dynticks.2018.08.30b', 'srcu.2018.08.30b' and 'torture.2018.08.29a' into HEAD

2018-08-30T23:12:53+00:00

doc.2018.08.30a: Documentation updates dynticks.2018.08.30b: RCU flavor consolidation updates and cleanups srcu.2018.08.30b: SRCU updates torture.2018.08.29a: Torture-test updates

rcuperf: Remove the "rcu_bh" and "sched" torture types

2018-08-30T23:03:30+00:00

Now that the RCU-bh and RCU-sched update-side functions are simple wrappers around their RCU counterparts, there isn't a whole lot of point in testing them. This commit therefore removes the "rcu_bh" and "sched" torture types from rcuperf. Signed-off-by: Paul E. McKenney

rcuperf: Warn on bad perf type for built-in tests

2018-08-29T16:20:48+00:00

When running a built-in rcuperf test, specifying an invalid perf type results in what looks like a hard hang, with the error messages hidden by other boot-time output. This commit therefore executes a WARN_ON() in this case so that the splat appears just following the error messages. Signed-off-by: Paul E. McKenney

Merge branches 'fixes1.2018.07.12b' and 'torture1.2018.07.12b' into HEAD

2018-07-12T22:42:41+00:00

fixes1.2018.07.12b: Post-gp_seq miscellaneous fixes torture1.2018.07.12b: Post-gp_seq torture-test updates

rcuperf: Remove unused torturing_tasks() function

2018-07-12T22:42:02+00:00

The torturing_tasks() function in rcuperf.c is not used, so this commit removes it. Signed-off-by: Paul E. McKenney

rcu: Remove "inline" from rcu_perf_print_module_parms()

2018-07-12T22:39:19+00:00

This function is in rcuperf.c, which is not an include file, so there is no problem dropping the "inline", especially given that this function is invoked only twice per rcuperf run. This commit therefore delegates the inlining decision to the compiler by dropping the "inline". Signed-off-by: Paul E. McKenney