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| author | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2016-01-08 07:43:50 -0800 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2016-02-23 19:59:55 -0800 |
| commit | 9de630c4f264dec48e61edd871cb98b8e1b58250 (patch) | |
| tree | e11bfe739aeb1e90d2a0fb31df4339bf39d2ced2 /include/linux/mman.h | |
| parent | 9fc9204ef9fdbe550fd81a554abce2b210e63e49 (diff) | |
| download | lwn-9de630c4f264dec48e61edd871cb98b8e1b58250.tar.gz lwn-9de630c4f264dec48e61edd871cb98b8e1b58250.zip | |
rcu: Document unique-name limitation for DEFINE_STATIC_SRCU()
SRCU uses per-CPU variables, and DEFINE_STATIC_SRCU() uses a static
per-CPU variable. However, per-CPU variables have significant
restrictions, for example, names of per-CPU variables must be globally
unique, even if declared static. These restrictions carry over to
DEFINE_STATIC_SRCU(), and this commit therefore documents these
restrictions.
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Suggested-by: Boqun Feng <boqun.feng@gmail.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'include/linux/mman.h')
0 files changed, 0 insertions, 0 deletions