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authorPaul E. McKenney <paulmck@linux.vnet.ibm.com>2017-10-03 02:54:49 +0300
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>2017-11-27 19:40:09 +0300
commit2e672ab2d491713541963afca3a5967ccc2376e9 (patch)
treebb47329042e035fbda4b6e8140d51075851c3982 /tools/perf/scripts/python/export-to-postgresql.py
parent4fbd8d194f06c8a3fd2af1ce560ddb31f7ec8323 (diff)
downloadlinux-2e672ab2d491713541963afca3a5967ccc2376e9.tar.xz
rcu: Avoid ->dynticks_nmi_nesting store tearing
NMIs can nest, and store tearing could in theory happen on carries from one byte to the next. This commit therefore adds the WRITE_ONCE() macros preventing this. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
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