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| author |   I Hsin Cheng <richard120310@gmail.com> | 2024-05-26 22:01:39 +0800 |
|---|---|---|
| committer |   Andrew Morton <akpm@linux-foundation.org> | 2024-06-24 22:25:04 -0700 |
| commit | 7abcb84f953df037d40fad66f2109db318dd155b (patch) | |
| tree | 1cd5ef60431a65ba37789a26e977658b2e059a7c /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | selftests: introduce additional eventfd test coverage (diff) | |
| download | wireguard-linux-7abcb84f953df037d40fad66f2109db318dd155b.tar.xz wireguard-linux-7abcb84f953df037d40fad66f2109db318dd155b.zip | |
lib/plist.c: enforce memory ordering in plist_check_list
There exists an iteration over a plist in plist_check_list(), and memory
dependency exists between variables "prev", "next" and "prev->next". As
plist is used in the scheduling subsystem, we should guarantee the memory
ordering between multiple processors.
Using macro "WRITE_ONCE()" can help us to ensure the memory ordering as
it was stated in "Documentation/memory-barriers.txt".
Link: https://lkml.kernel.org/r/20240526140139.17220-1-richard120310@gmail.com
Signed-off-by: I Hsin Cheng <richard120310@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions