refperf: Avoid null pointer dereference when buf fails to allocate

2020-08-25T01:45:35Z

Currently in the unlikely event that buf fails to be allocated it is dereferenced a few times. Use the errexit flag to determine if buf should be written to to avoid the null pointer dereferences. Addresses-Coverity: ("Dereference after null check") Fixes: f518f154ecef ("refperf: Dynamically allocate experiment-summary output buffer") Signed-off-by: Colin Ian King Signed-off-by: Paul E. McKenney

refperf: Rename refperf.c to refscale.c and change internal names

2020-06-29T19:00:46Z

This commit further avoids conflation of refperf with the kernel's perf feature by renaming kernel/rcu/refperf.c to kernel/rcu/refscale.c, and also by similarly renaming the functions and variables inside this file. This has the side effect of changing the names of the kernel boot parameters, so kernel-parameters.txt and ver_functions.sh are also updated. The rcutorture --torture type remains refperf, and this will be addressed in a separate commit. Reported-by: Ingo Molnar Signed-off-by: Paul E. McKenney

wireguard-linux/kernel/rcu/refscale.c, branch jd/orphan-parallel

refperf: Avoid null pointer dereference when buf fails to allocate

refperf: Rename refperf.c to refscale.c and change internal names