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    scripts: Make checkpatch.pl warn on expedited RCU grace periods · 3ad81779
    Paul E. McKenney 提交于
    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: NPaul E. McKenney <paulmck@linux.vnet.ibm.com>
    Cc: Andy Whitcroft <apw@canonical.com>
    Cc: Joe Perches <joe@perches.com>
    3ad81779
checkpatch.pl 166.2 KB