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| author |   Lai Jiangshan <laijs@cn.fujitsu.com> | 2010-06-28 16:25:04 +0800 |
|---|---|---|
| committer |   Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2010-08-19 17:18:01 -0700 |
| commit | 394f99a9007d4274f7076bb8553ab0ff9707688b (patch) | |
| tree | 7d379f91321cec58b87fd5f5089947872689d591 /include/linux/rcupdate.h | |
| parent | rcutorture: add random preemption (diff) | |
| download | wireguard-linux-394f99a9007d4274f7076bb8553ab0ff9707688b.tar.xz wireguard-linux-394f99a9007d4274f7076bb8553ab0ff9707688b.zip | |
rcu: simplify the usage of percpu data
&percpu_data is compatible with allocated percpu data.
And we use it and remove the "->rda[NR_CPUS]" array, saving significant
storage on systems with large numbers of CPUs. This does add an additional
level of indirection and thus an additional cache line referenced, but
because ->rda is not used on the read side, this is OK.
Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
Reviewed-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Diffstat (limited to 'include/linux/rcupdate.h')
0 files changed, 0 insertions, 0 deletions