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| author | Paul E. McKenney | 2015-07-02 20:55:40 +0200 |
|---|---|---|
| committer | Paul E. McKenney | 2015-07-23 00:27:42 +0200 |
| commit | 3ad81779ad35cd2e2ab34ba3f47f6f485696a105 (patch) | |
| tree | 9199ed5472dce8ac9e36bfc029579fee6cfa64cb /kernel/rcu | |
| parent | rcu: Update MAINTAINERS entry (diff) | |
| download | kernel-qcow2-linux-3ad81779ad35cd2e2ab34ba3f47f6f485696a105.tar.gz kernel-qcow2-linux-3ad81779ad35cd2e2ab34ba3f47f6f485696a105.tar.xz kernel-qcow2-linux-3ad81779ad35cd2e2ab34ba3f47f6f485696a105.zip | |
scripts: Make checkpatch.pl warn on expedited RCU grace periods
The synchronize_rcu_expedited() and synchronize_sched_expedited()
expedited-grace-period primitives induce OS jitter, which can degrade
real-time response. This commit therefore adds a checkpatch.pl warning
on any patch adding them.
Note that this patch does not warn on synchronize_srcu_expedited()
because it does not induce OS jitter, courtesy of its otherwise
much-maligned read-side memory barriers.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Andy Whitcroft <apw@canonical.com>
Cc: Joe Perches <joe@perches.com>
Diffstat (limited to 'kernel/rcu')
0 files changed, 0 insertions, 0 deletions