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| author | Xiao Liang <shaw.leon@gmail.com> | 2025-08-16 19:30:15 +0300 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2025-08-22 12:28:44 +0300 |
| commit | 501302d5cee0d8e8ec2c4a5919c37e0df9abc99b (patch) | |
| tree | 1685b9f26eb6adc059c6411da9dfe6ed112419b4 /tools/perf/tests/shell/script_python.sh | |
| parent | 56a50e37fee038d004866e5a2c479706d6034017 (diff) | |
| download | linux-501302d5cee0d8e8ec2c4a5919c37e0df9abc99b.tar.xz | |
padata: Reset next CPU when reorder sequence wraps around
When seq_nr wraps around, the next reorder job with seq 0 is hashed to
the first CPU in padata_do_serial(). Correspondingly, need reset pd->cpu
to the first one when pd->processed wraps around. Otherwise, if the
number of used CPUs is not a power of 2, padata_find_next() will be
checking a wrong list, hence deadlock.
Fixes: 6fc4dbcf0276 ("padata: Replace delayed timer with immediate workqueue in padata_reorder")
Cc: <stable@vger.kernel.org>
Signed-off-by: Xiao Liang <shaw.leon@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'tools/perf/tests/shell/script_python.sh')
0 files changed, 0 insertions, 0 deletions